{"id":16724,"date":"2026-04-24T08:14:07","date_gmt":"2026-04-24T08:14:07","guid":{"rendered":"https:\/\/www.jet-mills.com\/?p=16724"},"modified":"2026-04-24T08:16:46","modified_gmt":"2026-04-24T08:16:46","slug":"hard-carbon-anode-ice-powder-morphology-jet-milling-guide","status":"publish","type":"post","link":"https:\/\/www.jet-mills.com\/vi\/hard-carbon-anode-ice-powder-morphology-jet-milling-guide\/","title":{"rendered":"Anode cacbon c\u1ee9ng ICE: H\u00ecnh th\u00e1i b\u1ed9t v\u00e0 h\u01b0\u1edbng d\u1eabn nghi\u1ec1n b\u1eb1ng tia kh\u00ed"},"content":{"rendered":"

Carbon c\u1ee9ng hi\u1ec7n l\u00e0 v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng h\u00e0ng \u0111\u1ea7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong th\u01b0\u01a1ng m\u1ea1i. pin ion natri<\/a> (SIBs). N\u00f3 cung c\u1ea5p dung l\u01b0\u1ee3ng l\u01b0u tr\u1eef natri th\u1ef1c t\u1ebf t\u1eeb 200-350 mAh\/g v\u00e0 ho\u1ea1t \u0111\u1ed9ng \u1edf \u0111i\u1ec7n th\u1ebf \u0111\u1ee7 th\u1ea5p \u0111\u1ec3 h\u1eefu \u00edch trong c\u1ea5u h\u00ecnh pin ho\u00e0n ch\u1ec9nh. Tr\u1edf ng\u1ea1i cho vi\u1ec7c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i h\u01a1n l\u00e0 v\u1ea5n \u0111\u1ec1 ban \u0111\u1ea7u. Hi\u1ec7u su\u1ea5t Coulomb<\/a> (ICE): t\u1ef7 l\u1ec7 gi\u1eefa dung l\u01b0\u1ee3ng ph\u00f3ng \u0111i\u1ec7n chu k\u1ef3 \u0111\u1ea7u ti\u00ean v\u00e0 dung l\u01b0\u1ee3ng s\u1ea1c chu k\u1ef3 \u0111\u1ea7u ti\u00ean. \u0110\u1ed1i v\u1edbi nhi\u1ec1u v\u1eadt li\u1ec7u carbon c\u1ee9ng, ICE n\u1eb1m trong kho\u1ea3ng 70-85%. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 15-30% natri \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o trong qu\u00e1 tr\u00ecnh s\u1ea1c \u0111\u1ea7u ti\u00ean b\u1ecb m\u1ea5t v\u0129nh vi\u1ec5n v\u00e0 kh\u00f4ng th\u1ec3 ph\u1ee5c h\u1ed3i. Trong m\u1ed9t pin ho\u00e0n ch\u1ec9nh, l\u01b0\u1ee3ng natri b\u1ecb m\u1ea5t n\u00e0y ph\u1ea3i \u0111\u01b0\u1ee3c b\u00f9 \u0111\u1eafp b\u1eb1ng v\u1eadt li\u1ec7u cat\u1ed1t b\u1ed5 sung. \u0110i\u1ec1u n\u00e0y l\u00e0m t\u0103ng tr\u1ecdng l\u01b0\u1ee3ng, th\u1ec3 t\u00edch v\u00e0 chi ph\u00ed cho thi\u1ebft k\u1ebf pin.<\/p>\n\n\n\n

C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u hi\u1ec3u r\u00f5 hai c\u01a1 ch\u1ebf \u0111\u1eb1ng sau hi\u1ec7u su\u1ea5t ICE th\u1ea5p: s\u1ef1 ti\u00eau th\u1ee5 natri kh\u00f4ng th\u1ec3 \u0111\u1ea3o ng\u01b0\u1ee3c trong qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh m\u00e0ng SEI tr\u00ean b\u1ec1 m\u1eb7t c\u1ef1c d\u01b0\u01a1ng, v\u00e0 s\u1ef1 gi\u1eef l\u1ea1i kh\u00f4ng th\u1ec3 \u0111\u1ea3o ng\u01b0\u1ee3c c\u00e1c ion natri trong c\u00e1c khuy\u1ebft t\u1eadt b\u1ec1 m\u1eb7t v\u00e0 c\u00e1c nh\u00f3m ch\u1ee9c. Tuy nhi\u00ean, trong b\u1ed1i c\u1ea3nh s\u1ea3n xu\u1ea5t, ng\u01b0\u1eddi ta \u00edt th\u1ea3o lu\u1eadn v\u1ec1 vi\u1ec7c h\u00ecnh th\u00e1i b\u1ed9t c\u1ee7a v\u1eadt li\u1ec7u carbon c\u1ee9ng \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn c\u1ea3 hai c\u01a1 ch\u1ebf n\u00e0y. C\u1ee5 th\u1ec3, h\u00ecnh th\u00e1i b\u1ed9t \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn h\u00ecnh d\u1ea1ng h\u1ea1t (\u0111\u1ed9 c\u1ea7u), di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang v\u00e0 c\u1ea5u tr\u00fac l\u1ed7 x\u1ed1p. \u0110\u00e2y l\u00e0 nh\u1eefng th\u00f4ng s\u1ed1 m\u00e0 b\u01b0\u1edbc x\u1eed l\u00fd h\u1ea1t, ch\u1ee9 kh\u00f4ng ph\u1ea3i h\u00f3a h\u1ecdc t\u1ed5ng h\u1ee3p, ch\u1ee7 y\u1ebfu quy\u1ebft \u0111\u1ecbnh.<\/p>\n\n\n\n

B\u00e0i vi\u1ebft n\u00e0y \u0111\u1ec1 c\u1eadp \u0111\u1ebfn m\u1ed1i li\u00ean h\u1ec7 c\u01a1 h\u1ecdc gi\u1eefa h\u00ecnh th\u00e1i b\u1ed9t v\u00e0 ICE, nh\u1eefng h\u1ea1n ch\u1ebf th\u1ef1c t\u1ebf m\u00e0 \u0111i\u1ec1u n\u00e0y \u0111\u1eb7t ra \u0111\u1ed1i v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m so\u00e1t h\u00ecnh th\u00e1i, v\u00e0 l\u00fd do t\u1ea1i sao c\u1ea7n s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p t\u1ea7ng s\u00f4i. phay ph\u1ea3n l\u1ef1c<\/a> Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y mang l\u1ea1i nhi\u1ec1u \u01b0u \u0111i\u1ec3m h\u01a1n so v\u1edbi ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n bi th\u00f4ng th\u01b0\u1eddng trong gia c\u00f4ng cacbon c\u1ee9ng.<\/p>\n\n\n\n

\"V\u1eadt
V\u1eadt li\u1ec7u c\u1ef1c d\u01b0\u01a1ng cacbon c\u1ee9ng<\/figcaption><\/figure>\n\n\n\n

V\u1ea5n \u0111\u1ec1 v\u1ec1 m\u00e0ng SEI: T\u1ea1i sao di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t v\u00e0 h\u00ecnh d\u1ea1ng l\u1ea1i quan tr\u1ecdng?<\/mark><\/h2>\n\n\n\n

Trong chu k\u1ef3 s\u1ea1c \u0111\u1ea7u ti\u00ean c\u1ee7a pin ion natri, ch\u1ea5t \u0111i\u1ec7n gi\u1ea3i kh\u00f4ng \u1ed5n \u0111\u1ecbnh v\u1ec1 m\u1eb7t nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc \u1edf \u0111i\u1ec7n th\u1ebf c\u1ee7a c\u1ef1c d\u01b0\u01a1ng carbon c\u1ee9ng. N\u00f3 b\u1ecb ph\u00e2n h\u1ee7y tr\u00ean b\u1ec1 m\u1eb7t carbon, t\u1ea1o th\u00e0nh m\u00e0ng SEI \u2014 m\u1ed9t l\u1edbp th\u1ee5 \u0111\u1ed9ng h\u00f3a h\u1eefu c\u01a1-v\u00f4 c\u01a1 h\u1ed7n h\u1ee3p c\u00f3 kh\u1ea3 n\u0103ng d\u1eabn \u0111i\u1ec7n ion (c\u00e1c ion natri \u0111i qua n\u00f3) nh\u01b0ng c\u00e1ch \u0111i\u1ec7n (n\u00f3 ng\u0103n ch\u1eb7n s\u1ef1 ph\u00e2n h\u1ee7y ch\u1ea5t \u0111i\u1ec7n gi\u1ea3i ti\u1ebfp t\u1ee5c sau khi h\u00ecnh th\u00e0nh). M\u00e0ng SEI r\u1ea5t c\u1ea7n thi\u1ebft: n\u1ebfu kh\u00f4ng c\u00f3 n\u00f3, ch\u1ea5t \u0111i\u1ec7n gi\u1ea3i s\u1ebd ti\u1ebfp t\u1ee5c ph\u00e2n h\u1ee7y trong su\u1ed1t v\u00f2ng \u0111\u1eddi c\u1ee7a pin. Nh\u01b0ng vi\u1ec7c h\u00ecnh th\u00e0nh n\u00f3 ti\u00eau th\u1ee5 natri m\u1ed9t c\u00e1ch kh\u00f4ng th\u1ec3 \u0111\u1ea3o ng\u01b0\u1ee3c, v\u00e0 \u0111\u00f3 l\u00e0 v\u1ea5n \u0111\u1ec1 c\u1ed1t l\u00f5i c\u1ee7a pin ion natri.<\/p>\n\n\n\n

Hai y\u1ebfu t\u1ed1 h\u00ecnh th\u00e1i quy\u1ebft \u0111\u1ecbnh l\u01b0\u1ee3ng natri m\u00e0 qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh l\u1edbp SEI ti\u00eau th\u1ee5. Th\u1ee9 nh\u1ea5t, di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang: S\u1ef1 h\u00ecnh th\u00e0nh m\u00e0ng SEI x\u1ea3y ra t\u1ea1i giao di\u1ec7n gi\u1eefa carbon v\u00e0 ch\u1ea5t \u0111i\u1ec7n gi\u1ea3i. Giao di\u1ec7n c\u00e0ng l\u1edbn th\u00ec l\u1edbp SEI c\u00e0ng nhi\u1ec1u, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 l\u01b0\u1ee3ng natri ti\u00eau th\u1ee5 c\u00e0ng nhi\u1ec1u. B\u1ed9t carbon c\u1ee9ng c\u00f3 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang cao do c\u00f3 nhi\u1ec1u l\u1ed7 r\u1ed7ng, \u0111\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t ho\u1eb7c k\u00edch th\u01b0\u1edbc h\u1ea1t r\u1ea5t nh\u1ecf s\u1ebd m\u1ea5t nhi\u1ec1u natri h\u01a1n v\u00e0o l\u1edbp SEI so v\u1edbi b\u1ed9t c\u00f3 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang th\u1ea5p h\u01a1n \u1edf c\u00f9ng dung l\u01b0\u1ee3ng. Th\u1ee9 hai, c\u00e1c khuy\u1ebft t\u1eadt b\u1ec1 m\u1eb7t v\u00e0 nh\u00f3m ch\u1ee9c: C\u00e1c nh\u00f3m ch\u1ee9c b\u1ec1 m\u1eb7t ch\u1ee9a oxy (\u2013COOH, \u2013OH) ph\u1ea3n \u1ee9ng \u01b0u ti\u00ean v\u1edbi ch\u1ea5t \u0111i\u1ec7n gi\u1ea3i v\u00e0 gi\u1eef l\u1ea1i c\u00e1c ion natri m\u1ed9t c\u00e1ch kh\u00f4ng thu\u1eadn ngh\u1ecbch th\u00f4ng qua qu\u00e1 tr\u00ecnh h\u1ea5p ph\u1ee5. C\u00e1c khuy\u1ebft t\u1eadt b\u1ec1 m\u1eb7t \u2014 c\u00e1c v\u1ecb tr\u00ed c\u1ea1nh, li\u00ean k\u1ebft carbon b\u1ecb \u0111\u1ee9t, li\u00ean k\u1ebft kh\u00f4ng b\u00e3o h\u00f2a \u2014 c\u0169ng c\u00f3 kh\u1ea3 n\u0103ng ph\u1ea3n \u1ee9ng t\u01b0\u01a1ng t\u1ef1. C\u1ea3 hai \u0111\u1ec1u c\u00f3 m\u1eadt \u0111\u1ed9 cao h\u01a1n tr\u00ean c\u00e1c h\u1ea1t c\u00f3 h\u00ecnh d\u1ea1ng b\u1ea5t th\u01b0\u1eddng v\u1edbi c\u00e1c c\u1ea1nh v\u00e0 g\u00f3c s\u1eafc nh\u1ecdn so v\u1edbi c\u00e1c h\u1ea1t nh\u1eb5n, tr\u00f2n.<\/p>\n\n\n\n

\"B\u1ec1
B\u1ec1 m\u1eb7t h\u1ea1t<\/figcaption><\/figure>\n\n\n\n

H\u00ecnh d\u1ea1ng h\u1ea1t \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn b\u0103ng nh\u01b0 th\u1ebf n\u00e0o?<\/mark><\/h2>\n\n\n\n

\u1ea2nh h\u01b0\u1edfng c\u1ee7a h\u00ecnh d\u1ea1ng h\u1ea1t l\u00ean ICE di\u1ec5n ra th\u00f4ng qua di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang v\u00e0 m\u1eadt \u0111\u1ed9 khuy\u1ebft t\u1eadt b\u1ec1 m\u1eb7t \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 \u1edf tr\u00ean. C\u00e1c h\u1ea1t kh\u00f4ng \u0111\u1ec1u \u2014 m\u1ea3nh v\u1ee1 k\u00e9o d\u00e0i, m\u1ea3nh v\u1ee1 g\u00f3c c\u1ea1nh, t\u1ea5m ph\u1eb3ng \u2014 c\u00f3 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t tr\u00ean m\u1ed7i \u0111\u01a1n v\u1ecb th\u1ec3 t\u00edch cao h\u01a1n so v\u1edbi c\u00e1c h\u1ea1t h\u00ecnh c\u1ea7u c\u00f3 k\u00edch th\u01b0\u1edbc trung b\u00ecnh t\u01b0\u01a1ng \u0111\u01b0\u01a1ng. Ch\u00fang c\u0169ng c\u00f3 nhi\u1ec1u c\u1ea1nh, g\u00f3c v\u00e0 c\u00e1c \u0111i\u1ec3m gi\u00e1n \u0111o\u1ea1n tr\u00ean b\u1ec1 m\u1eb7t, n\u01a1i t\u1eadp trung c\u00e1c khuy\u1ebft t\u1eadt.<\/p>\n\n\n\n

Nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 tr\u00ean t\u1ea1p ch\u00ed ACS Nano \u0111\u00e3 ch\u1ec9 ra r\u1eb1ng vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh tr\u1ea1ng th\u00e1i lai h\u00f3a qu\u1ef9 \u0111\u1ea1o c\u1ee7a v\u1eadt li\u1ec7u carbon \u0111\u1ec3 l\u00e0m gi\u00e0u carbon lai h\u00f3a sp2 t\u1ea1i giao di\u1ec7n c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m n\u0103ng l\u01b0\u1ee3ng li\u00ean k\u1ebft ch\u1ea5t \u0111i\u1ec7n gi\u1ea3i v\u00e0 ng\u0103n ch\u1eb7n s\u1ef1 ph\u00e1t tri\u1ec3n kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u c\u1ee7a l\u1edbp SEI. Tr\u00ean th\u1ef1c t\u1ebf, \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 b\u1ec1 m\u1eb7t h\u1ea1t tr\u00f2n h\u01a1n v\u1edbi m\u1eadt \u0111\u1ed9 khuy\u1ebft t\u1eadt th\u1ea5p h\u01a1n s\u1ebd t\u1ed1t h\u01a1n \u2014 v\u00e0 \u0111\u1ed9 c\u1ea7u l\u00e0 th\u00f4ng s\u1ed1 x\u1eed l\u00fd ki\u1ec3m so\u00e1t tr\u1ef1c ti\u1ebfp nh\u1ea5t li\u1ec7u b\u1ec1 m\u1eb7t h\u1ea1t m\u1ecbn v\u00e0 chi\u1ebfm \u01b0u th\u1ebf b\u1edfi sp2 hay th\u00f4 r\u00e1p v\u00e0 gi\u00e0u khuy\u1ebft t\u1eadt.<\/p>\n\n\n\n

\u0110\u1ed9 c\u1ea7u cao h\u01a1n c\u0169ng c\u1ea3i thi\u1ec7n m\u1eadt \u0111\u1ed9 \u0111\u00f3ng g\u00f3i \u0111i\u1ec7n c\u1ef1c (m\u1eadt \u0111\u1ed9 n\u00e9n), cho ph\u00e9p ch\u1ee9a nhi\u1ec1u v\u1eadt li\u1ec7u ho\u1ea1t t\u00ednh h\u01a1n tr\u00ean m\u1ed7i \u0111\u01a1n v\u1ecb th\u1ec3 t\u00edch \u0111i\u1ec7n c\u1ef1c v\u00e0 gi\u1ea3m t\u1ef7 l\u1ec7 ch\u1ea5t \u0111i\u1ec7n gi\u1ea3i tr\u00ean v\u1eadt li\u1ec7u ho\u1ea1t t\u00ednh trong \u0111i\u1ec7n c\u1ef1c, t\u1eeb \u0111\u00f3 h\u1ea1n ch\u1ebf h\u01a1n n\u1eefa s\u1ef1 h\u00ecnh th\u00e0nh l\u1edbp SEI.<\/p>\n\n\n\n

\"D\u00e2y
D\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t m\u00e1y nghi\u1ec1n ph\u1ea3n l\u1ef1c<\/figcaption><\/figure>\n\n\n\n

C\u1ea5u tr\u00fac l\u1ed7 r\u1ed7ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ICE nh\u01b0 th\u1ebf n\u00e0o?<\/mark><\/h2>\n\n\n\n

Than c\u1ee9ng ch\u1ee9a ba lo\u1ea1i l\u1ed7 x\u1ed1p kh\u00e1c nhau, m\u1ed7i lo\u1ea1i c\u00f3 t\u00e1c \u0111\u1ed9ng kh\u00e1c nhau \u0111\u1ebfn kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef natri v\u00e0 ICE.<\/p>\n\n\n\n

L\u1ed7 ch\u00e2n l\u00f4ng m\u1edf v\u00e0 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang<\/mark><\/h3>\n\n\n\n

C\u00e1c l\u1ed7 r\u1ed7ng m\u1edf \u2014 l\u1ed7 r\u1ed7ng trung b\u00ecnh v\u00e0 l\u1ed7 r\u1ed7ng l\u1edbn c\u00f3 th\u1ec3 ti\u1ebfp c\u1eadn v\u1edbi ch\u1ea5t \u0111i\u1ec7n gi\u1ea3i \u2014 l\u00e0m t\u0103ng di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang v\u00e0 cung c\u1ea5p th\u00eam giao di\u1ec7n cho s\u1ef1 ph\u00e2n h\u1ee7y ch\u1ea5t \u0111i\u1ec7n gi\u1ea3i v\u00e0 h\u00ecnh th\u00e0nh l\u1edbp SEI. Di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t BET c\u1ee7a carbon c\u1ee9ng d\u00f9ng cho pin SIB th\u01b0\u1eddng n\u1eb1m trong kho\u1ea3ng 2-15 m2\/g; c\u00e1c v\u1eadt li\u1ec7u \u1edf m\u1ee9c cao h\u01a1n trong ph\u1ea1m vi n\u00e0y s\u1ebd m\u1ea5t nhi\u1ec1u natri h\u01a1n do h\u00ecnh th\u00e0nh l\u1edbp SEI. C\u00e1c l\u1ed7 r\u1ed7ng m\u1edf c\u00f3 l\u1ee3i cho s\u1ef1 th\u1ea5m \u01b0\u1edbt c\u1ee7a ch\u1ea5t \u0111i\u1ec7n gi\u1ea3i v\u00e0 \u0111\u1ed9ng h\u1ecdc v\u1eadn chuy\u1ec3n ion natri nh\u01b0ng l\u1ea1i t\u1ed1n k\u00e9m v\u1ec1 m\u1eb7t hi\u1ec7u su\u1ea5t pin nhi\u00ean li\u1ec7u r\u1eafn (ICE). M\u1ee5c ti\u00eau c\u1ee7a qu\u00e1 tr\u00ecnh ch\u1ebf t\u1ea1o l\u00e0 gi\u1ea3m thi\u1ec3u \u0111\u1ed9 x\u1ed1p m\u1edf kh\u00f4ng c\u1ea7n thi\u1ebft trong khi v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c c\u00e1c l\u1ed7 r\u1ed7ng k\u00edn.<\/p>\n\n\n\n

L\u1ed7 ch\u00e2n l\u00f4ng si\u00eau nh\u1ecf v\u00e0 kh\u1ea3 n\u0103ng gi\u1eef natri<\/mark><\/h3>\n\n\n\n

C\u00e1c l\u1ed7 si\u00eau nh\u1ecf \u2014 \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c l\u1ed7 c\u1ef1c nh\u1ecf d\u01b0\u1edbi 0,7 nm \u2014 l\u00e0 v\u1ecb tr\u00ed ch\u00ednh \u0111\u1ec3 gi\u1eef l\u1ea1i natri m\u1ed9t c\u00e1ch kh\u00f4ng th\u1ec3 \u0111\u1ea3o ng\u01b0\u1ee3c. Nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 tr\u00ean t\u1ea1p ch\u00ed Nature Communications \u0111\u00e3 ch\u1ec9 ra r\u1eb1ng qu\u00e1 tr\u00ecnh kh\u1eed dung m\u00f4i c\u1ee7a c\u00e1c ion natri trong c\u00e1c l\u1ed7 nano \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn ICE: c\u00e1c ion natri \u0111i v\u00e0o c\u00e1c l\u1ed7 c\u00f3 k\u00edch th\u01b0\u1edbc d\u01b0\u1edbi kho\u1ea3ng 0,7 nm kh\u00f4ng th\u1ec3 d\u1ec5 d\u00e0ng tho\u00e1t ra sau khi b\u1ecb kh\u1eed dung m\u00f4i v\u00e0 b\u1ecb m\u1ea5t \u0111i do dung l\u01b0\u1ee3ng kh\u00f4ng th\u1ec3 \u0111\u1ea3o ng\u01b0\u1ee3c. Ngo\u00e0i ra, c\u00e1c l\u1ed7 si\u00eau nh\u1ecf l\u00e0m t\u0103ng di\u1ec7n t\u00edch ti\u1ebfp x\u00fac gi\u1eefa ch\u1ea5t \u0111i\u1ec7n gi\u1ea3i v\u00e0 carbon, th\u00fac \u0111\u1ea9y s\u1ef1 h\u00ecnh th\u00e0nh l\u1edbp SEI kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t.<\/p>\n\n\n\n

\u00dd ngh\u0129a \u0111\u1ed1i v\u1edbi qu\u00e1 tr\u00ecnh x\u1eed l\u00fd h\u1ea1t: b\u1ea5t k\u1ef3 ph\u01b0\u01a1ng ph\u00e1p n\u00e0o t\u1ea1o ra th\u00eam c\u00e1c l\u1ed7 r\u1ed7ng si\u00eau nh\u1ecf trong c\u1ea5u tr\u00fac carbon c\u1ee9ng \u0111\u1ec1u l\u00e0m suy gi\u1ea3m ICE. \u0110\u00e2y l\u00e0 h\u1ea1n ch\u1ebf c\u1ee5 th\u1ec3 c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n bi n\u0103ng l\u01b0\u1ee3ng cao th\u00f4ng th\u01b0\u1eddng \u0111\u1ed1i v\u1edbi carbon c\u1ee9ng. L\u1ef1c c\u01a1 h\u1ecdc ph\u00e1 v\u1ee1 c\u00e1c li\u00ean k\u1ebft CC, t\u1ea1o ra c\u00e1c g\u1ed1c t\u1ef1 do v\u00e0 c\u00e1c khuy\u1ebft t\u1eadt b\u1ec1 m\u1eb7t, trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t ti\u1ebfp theo, t\u1ea1o th\u00e0nh nhi\u1ec1u l\u1ed7 r\u1ed7ng si\u00eau nh\u1ecf. Nghi\u1ec1n bi c\u00f3 ki\u1ec3m so\u00e1t c\u00f3 th\u1ec3 h\u1eefu \u00edch cho vi\u1ec7c gi\u1ea3m k\u00edch th\u01b0\u1edbc ban \u0111\u1ea7u, nh\u01b0ng c\u00e1c th\u00f4ng s\u1ed1 ph\u1ea3i \u0111\u01b0\u1ee3c gi\u1edbi h\u1ea1n ch\u1eb7t ch\u1ebd \u0111\u1ec3 tr\u00e1nh t\u1ea1o ra qu\u00e1 nhi\u1ec1u l\u1ed7 r\u1ed7ng si\u00eau nh\u1ecf.<\/p>\n\n\n\n

L\u1ed7 ch\u00e2n l\u00f4ng kh\u00e9p k\u00edn v\u00e0 s\u1ef1 t\u00edch tr\u1eef natri<\/mark><\/h3>\n\n\n\n

C\u00e1c khoang kh\u00f4ng th\u1ec3 ti\u1ebfp c\u1eadn v\u1edbi ch\u1ea5t \u0111i\u1ec7n gi\u1ea3i l\u00e0 lo\u1ea1i l\u1ed7 x\u1ed1p ph\u1ee9c t\u1ea1p v\u00e0 c\u00f3 gi\u00e1 tr\u1ecb nh\u1ea5t trong carbon c\u1ee9ng d\u00f9ng cho pin natri-ion (SIB). C\u00e1c l\u1ed7 x\u1ed1p k\u00edn trong ph\u1ea1m vi 2-3 nm l\u00e0 v\u1ecb tr\u00ed ch\u00ednh cho c\u01a1 ch\u1ebf l\u01b0u tr\u1eef natri "l\u1ea5p \u0111\u1ea7y l\u1ed7 x\u1ed1p", gi\u00fap carbon c\u1ee9ng c\u00f3 dung l\u01b0\u1ee3ng cao \u1edf \u0111i\u1ec7n th\u1ebf th\u1ea5p (d\u01b0\u1edbi 0,1 V so v\u1edbi Na\/Na+). V\u00ec ch\u1ea5t \u0111i\u1ec7n gi\u1ea3i kh\u00f4ng th\u1ec3 \u0111i v\u00e0o c\u00e1c l\u1ed7 x\u1ed1p k\u00edn, natri \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong \u0111\u00f3 kh\u00f4ng g\u00f3p ph\u1ea7n h\u00ecnh th\u00e0nh l\u1edbp SEI. \u0110\u00e2y l\u00e0 ki\u1ec3u l\u01b0u tr\u1eef natri d\u01b0\u01a1ng t\u00ednh v\u1edbi ICE. Nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 tr\u00ean t\u1ea1p ch\u00ed Advanced Functional Materials \u0111\u00e3 ch\u1ec9 ra r\u1eb1ng vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh k\u00edch th\u01b0\u1edbc v\u00e0 ph\u00e2n b\u1ed1 l\u1ed7 x\u1ed1p k\u00edn gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u1ed9ng h\u1ecdc khu\u1ebfch t\u00e1n natri v\u00e0 kh\u1ea3 n\u0103ng t\u1ed1c \u0111\u1ed9 s\u1ea1c\/x\u1ea3.<\/p>\n\n\n\n

Do \u0111\u00f3, vi\u1ec7c b\u1ea3o t\u1ed3n c\u00e1c l\u1ed7 x\u1ed1p k\u00edn th\u00f4ng qua qu\u00e1 tr\u00ecnh x\u1eed l\u00fd h\u1ea1t l\u00e0 r\u1ea5t quan tr\u1ecdng. Qu\u00e1 tr\u00ecnh x\u1eed l\u00fd c\u01a1 h\u1ecdc k\u00e9o d\u00e0i ho\u1eb7c n\u0103ng l\u01b0\u1ee3ng cao \u2014 \u0111\u1eb7c bi\u1ec7t l\u00e0 nghi\u1ec1n bi rung k\u00e9o d\u00e0i \u2014 c\u00f3 th\u1ec3 l\u00e0m s\u1ee5p \u0111\u1ed5 c\u00e1c l\u1ed7 x\u1ed1p k\u00edn do l\u1ef1c t\u00e1c \u0111\u1ed9ng n\u00e9n, lo\u1ea1i b\u1ecf ch\u00ednh nh\u1eefng v\u1ecb tr\u00ed l\u00e0m cho carbon c\u1ee9ng tr\u1edf th\u00e0nh \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng hi\u1ec7u qu\u1ea3 trong pin ion natri (SIB). \u0110\u00e2y l\u00e0 con dao hai l\u01b0\u1ee1i c\u1ee7a qu\u00e1 tr\u00ecnh nghi\u1ec1n bi \u0111\u1ed1i v\u1edbi carbon c\u1ee9ng. Ch\u00ednh t\u00e1c \u0111\u1ed9ng c\u01a1 h\u1ecdc gi\u00fap gi\u1ea3m k\u00edch th\u01b0\u1edbc v\u00e0 t\u1ea1o h\u00ecnh c\u1ea7u c\u0169ng c\u00f3 th\u1ec3 ph\u00e1 h\u1ee7y c\u1ea5u tr\u00fac l\u1ed7 x\u1ed1p quy\u1ebft \u0111\u1ecbnh hi\u1ec7u su\u1ea5t \u0111i\u1ec7n h\u00f3a.<\/p>\n\n\n\n

Lo\u1ea1i l\u1ed7 ch\u00e2n l\u00f4ng<\/strong><\/td>Ph\u1ea1m vi k\u00edch th\u01b0\u1edbc<\/strong><\/td>Hi\u1ec7u \u1ee9ng ICE<\/strong><\/td>\u00dd ngh\u0129a x\u1eed l\u00fd<\/strong><\/td><\/tr>
L\u1ed7 r\u1ed7ng m\u1edf (l\u1ed7 r\u1ed7ng trung b\u00ecnh)<\/td>2-50 nm<\/td>\u00c2m t\u00ednh \u2014 l\u00e0m t\u0103ng s\u1ef1 h\u00ecnh th\u00e0nh SEI<\/td>Gi\u1ea3m thi\u1ec3u; gi\u1eef di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t BET d\u01b0\u1edbi 5 m2\/g n\u1ebfu c\u00f3 th\u1ec3.<\/td><\/tr>
L\u1ed7 si\u00eau nh\u1ecf<\/td>< 0,7 nm<\/td>\u00c2m c\u1ef1c m\u1ea1nh \u2014 b\u1eaby Na kh\u00f4ng th\u1ec3 \u0111\u1ea3o ng\u01b0\u1ee3c<\/td>Tr\u00e1nh t\u1ea1o ra c\u00e1c t\u1ea1p ch\u1ea5t trong qu\u00e1 tr\u00ecnh ch\u1ebf bi\u1ebfn; tr\u00e1nh nghi\u1ec1n bi qu\u00e1 m\u1ee9c.<\/td><\/tr>
L\u1ed7 ch\u00e2n l\u00f4ng kh\u00e9p k\u00edn (t\u1ed1i \u01b0u)<\/td>2-3 nm<\/td>T\u00edch c\u1ef1c \u2014 kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef Na dung l\u01b0\u1ee3ng cao, trung t\u00ednh v\u1edbi ICE<\/td>B\u1ea3o qu\u1ea3n b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p ch\u1ebf bi\u1ebfn; tr\u00e1nh t\u00e1c \u0111\u1ed9ng n\u0103ng l\u01b0\u1ee3ng cao.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

C\u00e1c ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m so\u00e1t h\u00ecnh th\u00e1i: X\u1eed l\u00fd b\u1eb1ng plasma v\u00e0 nghi\u1ec1n bi<\/mark><\/h3>\n\n\n\n

X\u1eed l\u00fd b\u1eb1ng plasma: L\u00e0m s\u1ea1ch b\u1ec1 m\u1eb7t m\u00e0 kh\u00f4ng l\u00e0m h\u01b0 h\u1ea1i l\u1ed7 ch\u00e2n l\u00f4ng.<\/mark><\/h3>\n\n\n\n

X\u1eed l\u00fd b\u1eb1ng plasma, \u0111\u1eb7c bi\u1ec7t l\u00e0 ph\u00f3ng \u0111i\u1ec7n r\u00e0o c\u1ea3n \u0111i\u1ec7n m\u00f4i (DBD) trong m\u00f4i tr\u01b0\u1eddng kh\u1eed nh\u01b0 H2 ho\u1eb7c CO \u2014 l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p k\u1ef9 thu\u1eadt b\u1ec1 m\u1eb7t. N\u00f3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 nh\u00f3m ch\u1ee9c m\u00e0 kh\u00f4ng l\u00e0m x\u00e1o tr\u1ed9n c\u1ea5u tr\u00fac l\u1ed7 r\u1ed7ng b\u00ean trong. C\u00e1c h\u1ea1t plasma n\u0103ng l\u01b0\u1ee3ng cao s\u1ebd \u0103n m\u00f2n v\u00e0 lo\u1ea1i b\u1ecf c\u00e1c nh\u00f3m ch\u1ee9a oxy tr\u00ean b\u1ec1 m\u1eb7t (\u2013COOH, \u2013OH) m\u00e0 n\u1ebfu kh\u00f4ng s\u1ebd gi\u1eef natri l\u1ea1i m\u1ed9t c\u00e1ch kh\u00f4ng th\u1ec3 \u0111\u1ea3o ng\u01b0\u1ee3c. Ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd t\u01b0\u01a1ng t\u1ef1 c\u00f3 th\u1ec3 s\u1eeda ch\u1eefa c\u00e1c khuy\u1ebft t\u1eadt b\u1ec1 m\u1eb7t v\u00e0 t\u1ea1o ra qu\u00e1 tr\u00ecnh graphit h\u00f3a m\u1ed9t ph\u1ea7n l\u1edbp b\u1ec1 m\u1eb7t ngo\u00e0i c\u00f9ng. N\u00f3 c\u0169ng c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n c\u1ea3 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n ICE v\u00e0 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n giao di\u1ec7n.<\/p>\n\n\n\n

H\u1ea1n ch\u1ebf th\u1ef1c t\u1ebf c\u1ee7a x\u1eed l\u00fd plasma l\u00e0 n\u00f3 ch\u1ec9 t\u00e1c \u0111\u1ed9ng l\u00ean h\u00ecnh th\u00e1i b\u1ec1 m\u1eb7t hi\u1ec7n c\u00f3. N\u00f3 kh\u00f4ng th\u1ec3 thay \u0111\u1ed5i k\u00edch th\u01b0\u1edbc h\u1ea1t ho\u1eb7c \u0111\u1ed9 c\u1ea7u. Cacbon c\u1ee9ng tho\u00e1t ra t\u1eeb qu\u00e1 tr\u00ecnh nhi\u1ec7t ph\u00e2n d\u01b0\u1edbi d\u1ea1ng c\u00e1c m\u1ea3nh g\u00f3c c\u1ea1nh kh\u00f4ng \u0111\u1ec1u s\u1ebd v\u1eabn kh\u00f4ng \u0111\u1ec1u sau khi x\u1eed l\u00fd plasma, gi\u1eef nguy\u00ean h\u00ecnh th\u00e1i c\u00f3 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t l\u1edbn v\u00e0 m\u1eadt \u0111\u1ed9 khuy\u1ebft t\u1eadt cao, \u0111i\u1ec1u n\u00e0y h\u1ea1n ch\u1ebf hi\u1ec7u su\u1ea5t c\u1ee7a ICE. X\u1eed l\u00fd plasma hi\u1ec7u qu\u1ea3 nh\u1ea5t khi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t b\u01b0\u1edbc x\u1eed l\u00fd sau khi h\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc h\u1ea1t \u0111\u00e3 \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n.<\/p>\n\n\n\n

Nghi\u1ec1n bi: H\u1eefu \u00edch nh\u01b0ng \u0111\u00f2i h\u1ecfi ki\u1ec3m so\u00e1t th\u00f4ng s\u1ed1 nghi\u00eam ng\u1eb7t.<\/mark><\/h3>\n\n\n\n

Nghi\u1ec1n bi c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u1ea3 vi\u1ec7c gi\u1ea3m k\u00edch th\u01b0\u1edbc v\u00e0 l\u00e0m c\u1ea7u h\u00f3a m\u1ed9t ph\u1ea7n cacbon c\u1ee9ng. Nghi\u1ec1n bi n\u0103ng l\u01b0\u1ee3ng cao v\u1edbi th\u1eddi gian nghi\u1ec1n v\u00e0 k\u00edch th\u01b0\u1edbc v\u1eadt li\u1ec7u nghi\u1ec1n \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a s\u1ebd t\u1ea1o ra c\u00e1c h\u1ea1t c\u00f3 k\u00edch th\u01b0\u1edbc t\u1eeb d\u01b0\u1edbi micromet \u0111\u1ebfn micromet v\u1edbi \u0111\u1ed9 tr\u00f2n t\u0103ng l\u00ean so v\u1edbi c\u00e1c m\u1ea3nh v\u1ee5n kh\u00f4ng \u0111\u1ec1u sau qu\u00e1 tr\u00ecnh nhi\u1ec7t ph\u00e2n. L\u1ef1c c\u01a1 h\u1ecdc trong qu\u00e1 tr\u00ecnh nghi\u1ec1n c\u0169ng c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh c\u1ea5u tr\u00fac l\u1ed7 x\u1ed1p: cacbon c\u1ee9ng c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb nh\u1ef1a \u0111\u01b0\u1eddng v\u00e0 nh\u1ef1a phenolic cho th\u1ea5y h\u00e0m l\u01b0\u1ee3ng l\u1ed7 x\u1ed1p k\u00edn t\u0103ng l\u00ean sau khi nghi\u1ec1n bi c\u00f3 ki\u1ec3m so\u00e1t v\u00e0 x\u1eed l\u00fd nhi\u1ec7t.<\/p>\n\n\n\n

Tuy nhi\u00ean, ch\u00ednh nh\u1eefng l\u1ef1c c\u01a1 h\u1ecdc t\u1ea1o ra c\u00e1c hi\u1ec7u \u1ee9ng c\u00f3 l\u1ee3i n\u00e0y c\u0169ng c\u00f3 th\u1ec3 ph\u00e1 h\u1ee7y c\u00e1c l\u1ed7 r\u1ed7ng k\u00edn hi\u1ec7n c\u00f3. \u0110i\u1ec1u n\u00e0y x\u1ea3y ra n\u1ebfu c\u00e1c th\u00f4ng s\u1ed1 nghi\u1ec1n kh\u00f4ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd. Vi\u1ec7c t\u0103ng qu\u00e1 m\u1ee9c di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang th\u00f4ng qua vi\u1ec7c t\u1ea1o ra c\u00e1c l\u1ed7 r\u1ed7ng si\u00eau nh\u1ecf v\u00e0 g\u00e2y \u00f4 nhi\u1ec5m kim lo\u1ea1i do m\u00e0i m\u00f2n v\u1eadt li\u1ec7u nghi\u1ec1n. N\u0103ng l\u01b0\u1ee3ng nghi\u1ec1n cho ph\u00e9p \u0111\u01b0\u1ee3c gi\u1edbi h\u1ea1n \u1edf tr\u00ean b\u1edfi s\u1ef1 b\u1eaft \u0111\u1ea7u s\u1ee5p \u0111\u1ed5 c\u1ee7a l\u1ed7 r\u1ed7ng v\u00e0 \u1edf d\u01b0\u1edbi b\u1edfi s\u1ef1 gi\u1ea3m k\u00edch th\u01b0\u1edbc kh\u00f4ng \u0111\u1ee7 ho\u1eb7c s\u1ef1 c\u1ea7u h\u00f3a. Kho\u1ea3ng gi\u1edbi h\u1ea1n n\u00e0y h\u1eb9p h\u01a1n \u0111\u1ed1i v\u1edbi carbon c\u1ee9ng so v\u1edbi h\u1ea7u h\u1ebft c\u00e1c kho\u00e1ng ch\u1ea5t. N\u00f3 ph\u1ee5 thu\u1ed9c v\u00e0o ti\u1ec1n ch\u1ea5t c\u1ee5 th\u1ec3 v\u00e0 \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t ph\u00e2n. Vi\u1ec7c ki\u1ec3m so\u00e1t c\u00e1c th\u00f4ng s\u1ed1 nghi\u1ec1n \u0111\u00f2i h\u1ecfi ph\u1ea3i t\u1ed1i \u01b0u h\u00f3a th\u1ef1c nghi\u1ec7m cho t\u1eebng c\u00f4ng th\u1ee9c carbon c\u1ee9ng.<\/p>\n\n\n\n

\u1ee8ng d\u1ee5ng c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n b\u1eb1ng tia kh\u00ed: \u01afu \u0111i\u1ec3m so v\u1edbi nghi\u1ec1n bi \u0111\u1ed1i v\u1edbi v\u1eadt li\u1ec7u carbon c\u1ee9ng<\/mark><\/h2>\n\n\n\n
\n
\"\"<\/figure>\n<\/figure>\n\n\n\n

Ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n phun t\u1ea7ng s\u00f4i gi\u1ea3i quy\u1ebft m\u1ed9t s\u1ed1 h\u1ea1n ch\u1ebf c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n bi, \u0111\u1eb7c th\u00f9 cho vi\u1ec7c x\u1eed l\u00fd cacbon c\u1ee9ng \u0111\u1ec3 ch\u1ebf t\u1ea1o \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng cho pin ion natri.<\/p>\n\n\n\n

Kh\u00f4ng c\u1ea7n v\u1eadt li\u1ec7u m\u00e0i: Kh\u00f4ng c\u00f3 t\u1ea1p ch\u1ea5t kim lo\u1ea1i.<\/mark><\/h3>\n\n\n\n

Ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n b\u1eb1ng tia kh\u00ed n\u00e9n (jet milling) nghi\u1ec1n cacbon c\u1ee9ng ho\u00e0n to\u00e0n b\u1eb1ng va ch\u1ea1m gi\u1eefa c\u00e1c h\u1ea1t, \u0111\u01b0\u1ee3c th\u00fac \u0111\u1ea9y b\u1edfi c\u00e1c tia kh\u00ed n\u00e9n. Kh\u00f4ng c\u00f3 v\u1eadt li\u1ec7u nghi\u1ec1n v\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 ti\u1ebfp x\u00fac gi\u1eefa v\u1eadt li\u1ec7u nghi\u1ec1n v\u00e0 h\u1ea1t. S\u1ef1 nhi\u1ec5m b\u1ea9n kim lo\u1ea1i do m\u00e0i m\u00f2n \u2014 s\u1eaft, crom v\u00e0 c\u00e1c kim lo\u1ea1i kh\u00e1c m\u00e0 v\u1eadt li\u1ec7u nghi\u1ec1n b\u1eb1ng th\u00e9p ho\u1eb7c th\u1eadm ch\u00ed g\u1ed1m \u0111\u01b0a v\u00e0o s\u1ea3n ph\u1ea9m \u2014 \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf. \u0110\u1ed1i v\u1edbi v\u1eadt li\u1ec7u c\u1ef1c d\u01b0\u01a1ng c\u1ee7a pin ion natri, n\u01a1i c\u00e1c t\u1ea1p ch\u1ea5t kim lo\u1ea1i c\u00f3 th\u1ec3 x\u00fac t\u00e1c s\u1ef1 ph\u00e2n h\u1ee7y l\u1edbp SEI ho\u1eb7c t\u1ea1o ra c\u00e1c ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng \u0111i\u1ec7n h\u00f3a, quy tr\u00ecnh x\u1eed l\u00fd kh\u00f4ng g\u00e2y nhi\u1ec5m b\u1ea9n l\u00e0 m\u1ed9t l\u1ee3i th\u1ebf \u0111\u00e1ng k\u1ec3.<\/p>\n\n\n\n

N\u0103ng l\u01b0\u1ee3ng t\u00e1c \u0111\u1ed9ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t: B\u1ea3o t\u1ed3n c\u00e1c l\u1ed7 ch\u00e2n l\u00f4ng kh\u00e9p k\u00edn<\/mark><\/h3>\n\n\n\n

H\u1ea1n ch\u1ebf quan tr\u1ecdng c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n bi \u0111\u1ed1i v\u1edbi cacbon c\u1ee9ng l\u00e0 n\u0103ng l\u01b0\u1ee3ng va \u0111\u1eadp qu\u00e1 m\u1ee9c l\u00e0m v\u1ee1 c\u00e1c l\u1ed7 r\u1ed7ng k\u00edn. Trong m\u00e1y nghi\u1ec1n kh\u00ed n\u00e9n t\u1ea7ng s\u00f4i, n\u0103ng l\u01b0\u1ee3ng nghi\u1ec1n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t b\u1edfi \u00e1p su\u1ea5t kh\u00ed (th\u01b0\u1eddng l\u00e0 4-8 bar) v\u00e0 c\u1ea5u h\u00ecnh tia phun. \u0110i\u1ec1u quan tr\u1ecdng l\u00e0, t\u1ed5ng n\u0103ng l\u01b0\u1ee3ng truy\u1ec1n \u0111\u1ebfn m\u1ed7i h\u1ea1t \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi th\u1eddi gian l\u01b0u tr\u00fa trong v\u00f9ng nghi\u1ec1n, \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t b\u1edfi b\u00e1nh xe ph\u00e2n lo\u1ea1i t\u00edch h\u1ee3p. Khi m\u1ed9t h\u1ea1t \u0111\u1ea1t \u0111\u1ebfn k\u00edch th\u01b0\u1edbc m\u1ee5c ti\u00eau, b\u1ed9 ph\u00e2n lo\u1ea1i s\u1ebd lo\u1ea1i b\u1ecf n\u00f3 kh\u1ecfi v\u00f9ng nghi\u1ec1n ngay l\u1eadp t\u1ee9c. N\u00f3 kh\u00f4ng ph\u1ea3i ch\u1ecbu th\u00eam c\u00e1c t\u00e1c \u0111\u1ed9ng va \u0111\u1eadp c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng c\u1ea5u tr\u00fac l\u1ed7 r\u1ed7ng c\u1ee7a n\u00f3. Vi\u1ec7c lo\u1ea1i b\u1ecf nhanh ch\u00f3ng c\u00e1c h\u1ea1t \u0111\u1ea1t ti\u00eau chu\u1ea9n n\u00e0y l\u00e0 \u0111i\u1ec1u cho ph\u00e9p m\u00e1y nghi\u1ec1n kh\u00ed n\u00e9n \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u00edch th\u01b0\u1edbc m\u1ee5c ti\u00eau D50 m\u00e0 kh\u00f4ng c\u1ea7n x\u1eed l\u00fd qu\u00e1 m\u1ee9c l\u00e0m ph\u00e1 h\u1ee7y c\u00e1c l\u1ed7 r\u1ed7ng k\u00edn trong m\u00e1y nghi\u1ec1n bi.<\/p>\n\n\n\n

\u00c1p su\u1ea5t nghi\u1ec1n c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh. \u00c1p su\u1ea5t th\u1ea5p h\u01a1n t\u1ea1o ra c\u00e1c va ch\u1ea1m \u00edt m\u1ea1nh h\u01a1n, ph\u00f9 h\u1ee3p v\u1edbi than c\u1ee9ng, n\u01a1i vi\u1ec7c b\u1ea3o to\u00e0n c\u1ea5u tr\u00fac l\u1ed7 r\u1ed7ng l\u00e0 \u01b0u ti\u00ean h\u00e0ng \u0111\u1ea7u. \u00c1p su\u1ea5t cao h\u01a1n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi m\u1ee5c ti\u00eau ch\u00ednh l\u00e0 gi\u1ea3m k\u00edch th\u01b0\u1edbc h\u1ea1t. Kh\u1ea3 n\u0103ng \u0111i\u1ec1u ch\u1ec9nh n\u00e0y cho ph\u00e9p k\u1ef9 s\u01b0 quy tr\u00ecnh t\u1ed1i \u01b0u h\u00f3a s\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa gi\u1ea3m k\u00edch th\u01b0\u1edbc, t\u1ea1o h\u00ecnh c\u1ea7u v\u00e0 b\u1ea3o to\u00e0n c\u1ea5u tr\u00fac l\u1ed7 r\u1ed7ng cho m\u1ed9t c\u00f4ng th\u1ee9c than c\u1ee9ng c\u1ee5 th\u1ec3.<\/p>\n\n\n\n

M\u00f4i tr\u01b0\u1eddng nit\u01a1: Ng\u0103n ng\u1eeba qu\u00e1 tr\u00ecnh oxy h\u00f3a b\u1ec1 m\u1eb7t<\/mark><\/h3>\n\n\n\n

C\u00e1c b\u1ec1 m\u1eb7t carbon c\u1ee9ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 nh\u1eefng b\u1ec1 m\u1eb7t m\u1edbi \u0111\u01b0\u1ee3c x\u1eed l\u00fd \u0111\u1ec3 c\u00f3 k\u00edch th\u01b0\u1edbc h\u1ea1t nh\u1ecf h\u01a1n v\u1edbi b\u1ec1 m\u1eb7t m\u1edbi l\u1ed9 ra, d\u1ec5 b\u1ecb oxy h\u00f3a trong kh\u00f4ng kh\u00ed. Qu\u00e1 tr\u00ecnh oxy h\u00f3a b\u1ec1 m\u1eb7t t\u1ea1o ra c\u00e1c nh\u00f3m ch\u1ee9c ch\u1ee9a oxy \u2014 ch\u00ednh nh\u1eefng nh\u00f3m m\u00e0 qu\u00e1 tr\u00ecnh x\u1eed l\u00fd plasma lo\u1ea1i b\u1ecf \u2014 l\u00e0m t\u0103ng s\u1ef1 h\u00ecnh th\u00e0nh l\u1edbp SEI v\u00e0 gi\u1ea3m ICE. M\u00e1y nghi\u1ec1n tia c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c v\u1eadn h\u00e0nh trong m\u00f4i tr\u01b0\u1eddng nit\u01a1 k\u00edn, s\u1eed d\u1ee5ng nit\u01a1 l\u00e0m kh\u00ed nghi\u1ec1n thay v\u00ec kh\u00ed n\u00e9n. \u0110i\u1ec1u n\u00e0y ng\u0103n ng\u1eeba b\u1ea5t k\u1ef3 qu\u00e1 tr\u00ecnh oxy h\u00f3a n\u00e0o c\u1ee7a c\u00e1c b\u1ec1 m\u1eb7t m\u1edbi \u0111\u01b0\u1ee3c t\u1ea1o ra trong b\u01b0\u1edbc nghi\u1ec1n. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi carbon c\u1ee9ng t\u1eeb c\u00e1c ti\u1ec1n ch\u1ea5t nh\u1ea1y c\u1ea3m v\u1edbi oxy ho\u1eb7c \u0111\u1ed1i v\u1edbi c\u00e1c v\u1eadt li\u1ec7u c\u00f3 th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc b\u1ec1 m\u1eb7t \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh ch\u1eb7t ch\u1ebd.<\/p>\n\n\n\n

K\u00edch th\u01b0\u1edbc h\u1ea1t v\u00e0 \u0111\u1ed9 c\u1ea7u cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng SIB<\/mark><\/h3>\n\n\n\n

K\u00edch th\u01b0\u1edbc h\u1ea1t m\u1ee5c ti\u00eau \u0111i\u1ec3n h\u00ecnh cho b\u1ed9t anot cacbon c\u1ee9ng trong pin ion natri l\u00e0 D50 trong kho\u1ea3ng 5-12 micron. K\u00edch th\u01b0\u1edbc D97 d\u01b0\u1edbi 20-25 micron. Kho\u1ea3ng n\u00e0y c\u00e2n b\u1eb1ng m\u1eadt \u0111\u1ed9 \u0111\u00f3ng g\u00f3i \u0111i\u1ec7n c\u1ef1c, kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn ch\u1ea5t \u0111i\u1ec7n gi\u1ea3i v\u00e0 chi\u1ec1u d\u00e0i \u0111\u01b0\u1eddng khu\u1ebfch t\u00e1n natri b\u00ean trong h\u1ea1t. M\u00e1y nghi\u1ec1n t\u1ea7ng s\u00f4i t\u00edch h\u1ee3p b\u1ed9 ph\u00e2n lo\u1ea1i \u0111\u1ed9ng c\u00f3 th\u1ec3 s\u1ea3n xu\u1ea5t cacbon c\u1ee9ng trong kho\u1ea3ng n\u00e0y m\u1ed9t c\u00e1ch nh\u1ea5t qu\u00e1n v\u1edbi gi\u1edbi h\u1ea1n tr\u00ean D97 \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t. B\u1ed9 ph\u00e2n lo\u1ea1i ng\u0103n c\u00e1c h\u1ea1t qu\u00e1 c\u1ee1 l\u1ecdt v\u00e0o d\u00f2ng s\u1ea3n ph\u1ea9m. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c quy tr\u00ecnh ph\u1ee7 \u0111i\u1ec7n c\u1ef1c nh\u1ea1y c\u1ea3m v\u1edbi c\u00e1c h\u1ea1t c\u00f3 k\u00edch th\u01b0\u1edbc b\u1ea5t th\u01b0\u1eddng.<\/p>\n\n\n\n

Nh\u00e2n t\u1ed1<\/strong><\/td>Nghi\u1ec1n bi<\/strong><\/td>Gia c\u00f4ng phun t\u1ea7ng s\u00f4i<\/strong><\/td><\/tr>
\u00d4 nhi\u1ec5m kim lo\u1ea1i<\/td>\u0110\u00fang v\u1eady \u2014 hao m\u00f2n do s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u v\u00e0 l\u1edbp l\u00f3t<\/td>Kh\u00f4ng c\u00f3 g\u00ec \u2014 kh\u00f4ng c\u00f3 ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n th\u00f4ng<\/td><\/tr>
B\u1ea3o t\u1ed3n l\u1ed7 ch\u00e2n l\u00f4ng k\u00edn<\/td>R\u1ee7i ro khi s\u1eed d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng cao ho\u1eb7c gia c\u00f4ng k\u00e9o d\u00e0i.<\/td>T\u1ed1t h\u01a1n \u2014 b\u1ed9 ph\u00e2n lo\u1ea1i lo\u1ea1i b\u1ecf c\u00e1c h\u1ea1t tr\u01b0\u1edbc khi x\u1eed l\u00fd qu\u00e1 m\u1ee9c.<\/td><\/tr>
T\u1ea1o l\u1ed7 si\u00eau nh\u1ecf<\/td>R\u1ee7i ro cao khi xay x\u00e1t qu\u00e1 m\u1ee9c.<\/td>Th\u1ea5p h\u01a1n \u2014 n\u0103ng l\u01b0\u1ee3ng va ch\u1ea1m \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t<\/td><\/tr>
\u0110i\u1ec1u khi\u1ec3n D97<\/td>C\u1ea7n c\u00f3 b\u1ed9 ph\u00e2n lo\u1ea1i b\u00ean ngo\u00e0i; \u0111\u1ed9 ch\u00ednh x\u00e1c th\u1ea5p h\u01a1n.<\/td>B\u1ed9 ph\u00e2n lo\u1ea1i t\u00edch h\u1ee3p \u2014 c\u1eaft tr\u00ean c\u1ee9ng<\/td><\/tr>
T\u00f9y ch\u1ecdn b\u1ea7u kh\u00ed quy\u1ec3n nit\u01a1<\/td>Ph\u1ee9c t\u1ea1p v\u00e0 t\u1ed1n k\u00e9m \u0111\u1ed1i v\u1edbi m\u00e1y nghi\u1ec1n bi \u01b0\u1edbt\/kh\u00f4.<\/td>T\u00f9y ch\u1ecdn ti\u00eau chu\u1ea9n cho m\u00e1y nghi\u1ec1n tia n\u01b0\u1edbc<\/td><\/tr>
nguy c\u01a1 oxy h\u00f3a b\u1ec1 m\u1eb7t<\/td>M\u1ee9c \u0111\u1ed9 v\u1eeba ph\u1ea3i \u2014 ti\u1ebfp x\u00fac v\u1edbi ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n th\u00f4ng t\u1ea1o ra nhi\u1ec7t<\/td>Ph\u00eda d\u01b0\u1edbi \u2014 hi\u1ec7u \u1ee9ng l\u00e0m m\u00e1t do s\u1ef1 gi\u00e3n n\u1edf c\u1ee7a kh\u00ed; t\u00f9y ch\u1ecdn N2<\/td><\/tr>
C\u01a1 ch\u1ebf h\u00ecnh c\u1ea7u h\u00f3a<\/td>M\u00e0i m\u00f2n c\u01a1 h\u1ecdc (hi\u1ec7u qu\u1ea3 nh\u01b0ng c\u1ea7n t\u1ed1i \u01b0u h\u00f3a)<\/td>Va ch\u1ea1m l\u1eb7p \u0111i l\u1eb7p l\u1ea1i gi\u1eefa c\u00e1c h\u1ea1t n\u0103ng l\u01b0\u1ee3ng th\u1ea5p (nh\u1eb9 nh\u00e0ng h\u01a1n)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
X\u1eed l\u00fd cacbon c\u1ee9ng \u0111\u1ec3 l\u00e0m c\u1ef1c d\u01b0\u01a1ng cho pin ion natri?<\/mark><\/strong>
B\u1ed9t EPIC<\/a> M\u00e1y nghi\u1ec1n t\u1ea7ng s\u00f4i c\u1ee7a ch\u00fang t\u00f4i \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh cho carbon c\u1ee9ng v\u00e0 c\u00e1c v\u1eadt li\u1ec7u anot pin ion natri kh\u00e1c \u2014 mang l\u1ea1i kh\u1ea3 n\u0103ng x\u1eed l\u00fd h\u1ea1t \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t h\u00ecnh th\u00e1i, kh\u00f4ng b\u1ecb nhi\u1ec5m b\u1ea9n trong m\u00f4i tr\u01b0\u1eddng nit\u01a1 k\u00edn. Ch\u00fang t\u00f4i cung c\u1ea5p d\u1ecbch v\u1ee5 nghi\u1ec1n th\u1eed mi\u1ec5n ph\u00ed tr\u00ean v\u1eadt li\u1ec7u carbon c\u1ee9ng c\u1ee7a b\u1ea1n v\u00e0 tr\u1ea3 l\u1ea1i d\u1eef li\u1ec7u PSD, h\u00ecnh \u1ea3nh SEM x\u00e1c nh\u1eadn \u0111\u1ed9 c\u1ea7u, ph\u00e9p \u0111o di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t BET v\u00e0 c\u1ea5u h\u00ecnh quy tr\u00ecnh \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t. H\u00e3y cho ch\u00fang t\u00f4i bi\u1ebft lo\u1ea1i ti\u1ec1n ch\u1ea5t c\u1ee7a b\u1ea1n, D50 m\u1ee5c ti\u00eau, \u0111\u1ed9 c\u1ea7u y\u00eau c\u1ea7u v\u00e0 li\u1ec7u m\u00f4i tr\u01b0\u1eddng nit\u01a1 c\u00f3 c\u1ea7n thi\u1ebft cho \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n hay kh\u00f4ng.  <\/strong>
Y\u00eau c\u1ea7u m\u1eabu th\u1eed m\u00e0i th\u00e9p c\u1ee9ng Carbon mi\u1ec5n ph\u00ed: www.jet-mills.com\/contact-us<\/a><\/mark><\/strong>
Kh\u00e1m ph\u00e1 c\u00e1c gi\u1ea3i ph\u00e1p v\u1eadt li\u1ec7u cho pin ion natri c\u1ee7a ch\u00fang t\u00f4i: www.jet-mills.com<\/a><\/mark><\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\n