{"id":134688,"date":"2024-10-22T10:39:32","date_gmt":"2024-10-22T02:39:32","guid":{"rendered":"https:\/\/www.alpapowder.com\/134688\/"},"modified":"2024-10-22T10:39:34","modified_gmt":"2024-10-22T02:39:34","slug":"ung-dung-vat-lieu-dien-cuc-am-goc-silicon-trong-pin-lithium-ion","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/134688\/","title":{"rendered":"\u1ee8ng d\u1ee5ng v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m g\u1ed1c silicon trong pin lithium-ion"},"content":{"rendered":"

\"\"<\/p>\n

V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n m\u1ea1nh m\u1ebd c\u1ee7a c\u00e1c lo\u1ea1i xe n\u0103ng l\u01b0\u1ee3ng m\u1edbi, l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng v\u00e0 c\u00e1c th\u1ecb tr\u01b0\u1eddng kh\u00e1c, quy m\u00f4 th\u1ecb tr\u01b0\u1eddng v\u00e0 tr\u00ecnh \u0111\u1ed9 k\u1ef9 thu\u1eadt c\u1ee7a pin lithium v\u00e0 v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m ti\u1ebfp t\u1ee5c \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n. Hi\u1ec7n t\u1ea1i, dung l\u01b0\u1ee3ng ri\u00eang c\u1ee7a v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m graphite th\u01b0\u01a1ng m\u1ea1i g\u1ea7n v\u1edbi dung l\u01b0\u1ee3ng ri\u00eang l\u00fd thuy\u1ebft c\u1ee7a v\u1eadt li\u1ec7u graphite v\u00e0 \u1ee9ng d\u1ee5ng th\u01b0\u01a1ng m\u1ea1i c\u1ee7a v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m g\u1ed1c silicon<\/a> \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u1ea9y nhanh h\u01a1n n\u1eefa.<\/p>\n

V\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m g\u1ed1c silicon<\/a> \u0111\u00e3 tr\u1edf th\u00e0nh \u0111i\u1ec3m n\u00f3ng trong nghi\u00ean c\u1ee9u v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m c\u1ee7a pin lithium-ion do dung l\u01b0\u1ee3ng ri\u00eang l\u00fd thuy\u1ebft c\u1ef1c cao c\u1ee7a ch\u00fang. Dung l\u01b0\u1ee3ng ri\u00eang l\u00fd thuy\u1ebft c\u1ee7a v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m silicon<\/a> cao h\u01a1n nhi\u1ec1u so v\u1edbi v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m graphite th\u01b0\u01a1ng m\u1ea1i v\u00e0 \u0111i\u1ec7n \u00e1p l\u00e0m vi\u1ec7c \u1edf m\u1ee9c v\u1eeba ph\u1ea3i, \u0111i\u1ec1u n\u00e0y khi\u1ebfn v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m g\u1ed1c silicon c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m \u0111\u00e1ng k\u1ec3 trong vi\u1ec7c c\u1ea3i thi\u1ec7n m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng c\u1ee7a pin. Tuy nhi\u00ean, s\u1ef1 gi\u00e3n n\u1edf v\u00e0 co l\u1ea1i v\u1ec1 th\u1ec3 t\u00edch c\u1ee7a silicon<\/a> trong qu\u00e1 tr\u00ecnh s\u1ea1c v\u00e0 x\u1ea3 qu\u00e1 l\u1edbn, d\u1eabn \u0111\u1ebfn n\u1ee9t v\u00e0 ph\u00e2n m\u1ea3nh v\u1eadt li\u1ec7u, c\u0169ng nh\u01b0 m\u00e0ng SEI li\u00ean t\u1ee5c d\u00e0y l\u00ean, \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng \u0111\u1ebfn \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh chu k\u1ef3 v\u00e0 hi\u1ec7u su\u1ea5t t\u1ed1c \u0111\u1ed9 c\u1ee7a pin.<\/p>\n

\u0110\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c khuy\u1ebft t\u1eadt c\u1ee7a v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m g\u1ed1c silicon<\/a> trong c\u00e1c \u1ee9ng d\u1ee5ng pin lithium-ion, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 \u0111\u1ec1 xu\u1ea5t nhi\u1ec1u l\u1ed9 tr\u00ecnh k\u1ef9 thu\u1eadt kh\u00e1c nhau, bao g\u1ed3m c\u00f4ng ngh\u1ec7 nano, c\u00f4ng ngh\u1ec7 v\u1eadt li\u1ec7u composite, thi\u1ebft k\u1ebf c\u1ea5u tr\u00fac, s\u1eeda \u0111\u1ed5i b\u1ec1 m\u1eb7t, t\u1ed1i \u01b0u h\u00f3a ch\u1ea5t \u0111i\u1ec7n ph\u00e2n, ti\u1ec1n lithi h\u00f3a, silicon x\u1ed1p v\u00e0 silicon h\u1ee3p kim, v.v.<\/p>\n

C\u00e1c l\u1ed9 tr\u00ecnh k\u1ef9 thu\u1eadt n\u00e0y bao g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c giai \u0111o\u1ea1n t\u1eeb nghi\u00ean c\u1ee9u trong ph\u00f2ng th\u00ed nghi\u1ec7m \u0111\u1ebfn \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p, gi\u1ea3m thi\u1ec3u v\u1ea5n \u0111\u1ec1 gi\u00e3n n\u1edf th\u1ec3 t\u00edch th\u00f4ng qua c\u00f4ng ngh\u1ec7 nano h\u00f3a v\u00e0 v\u1eadt li\u1ec7u composite, c\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh th\u00f4ng qua thi\u1ebft k\u1ebf c\u1ea5u tr\u00fac v\u00e0 s\u1eeda \u0111\u1ed5i b\u1ec1 m\u1eb7t, \u0111\u1ed3ng th\u1eddi n\u00e2ng cao hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3 c\u1ee7a pin b\u1eb1ng c\u00e1ch t\u1ed1i \u01b0u h\u00f3a h\u1ec7 th\u1ed1ng ch\u1ea5t \u0111i\u1ec7n ph\u00e2n. C\u00f4ng ngh\u1ec7 ti\u1ec1n lithi h\u00f3a c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t coulomb ban \u0111\u1ea7u, c\u1ea5u tr\u00fac silicon<\/a> x\u1ed1p gi\u00fap gi\u1ea3m thi\u1ec3u s\u1ef1 thay \u0111\u1ed5i th\u1ec3 t\u00edch v\u00e0 silicon h\u1ee3p kim c\u00f3 th\u1ec3 cung c\u1ea5p dung l\u01b0\u1ee3ng v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh cao h\u01a1n. Vi\u1ec7c \u1ee9ng d\u1ee5ng to\u00e0n di\u1ec7n c\u00e1c l\u1ed9 tr\u00ecnh k\u1ef9 thu\u1eadt n\u00e0y d\u1ef1 ki\u1ebfn \u200b\u200bs\u1ebd \u0111\u1ea1t \u0111\u01b0\u1ee3c v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m g\u1ed1c silicon<\/a> hi\u1ec7u su\u1ea5t cao, tu\u1ed5i th\u1ecd cao v\u00e0 chi ph\u00ed th\u1ea5p, \u0111\u1ed3ng th\u1eddi th\u00fac \u0111\u1ea9y s\u1ef1 ph\u1ed5 bi\u1ebfn r\u1ed9ng r\u00e3i c\u1ee7a ch\u00fang trong c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf.<\/p>\n

Hi\u1ec7n nay, v\u1eadt li\u1ec7u silicon<\/a>-cacbon v\u00e0 v\u1eadt li\u1ec7u silicon-oxy l\u00e0 hai l\u1ed9 tr\u00ecnh k\u1ef9 thu\u1eadt ch\u00ednh cho \u0111i\u1ec7n c\u1ef1c \u00e2m g\u1ed1c silicon.<\/p>\n

Trong s\u1ed1 \u0111\u00f3, v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m silicon<\/a>-carbon \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi hi\u1ec7u su\u1ea5t coulomb \u0111\u1ea7u ti\u00ean cao, nh\u01b0ng tu\u1ed5i th\u1ecd chu k\u1ef3 c\u1ee7a ch\u00fang c\u1ea7n \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n. B\u1eb1ng c\u00e1ch hi\u1ec7n th\u1ef1c h\u00f3a k\u00edch th\u01b0\u1edbc nano c\u1ee7a v\u1eadt li\u1ec7u silicon<\/a>, c\u00e1c v\u1ea5n \u0111\u1ec1 gi\u00e3n n\u1edf v\u00e0 g\u00e3y v\u1ee1 ph\u00e1t sinh trong qu\u00e1 tr\u00ecnh s\u1ea1c v\u00e0 x\u1ea3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gi\u1ea3m b\u1edbt, do \u0111\u00f3 n\u00e2ng cao h\u01a1n n\u1eefa tu\u1ed5i th\u1ecd chu k\u1ef3 c\u1ee7a ch\u00fang. T\u01b0\u01a1ng \u0111\u1ed1i m\u00e0 n\u00f3i, \u01b0u \u0111i\u1ec3m ch\u00ednh c\u1ee7a v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m silicon<\/a>-oxy l\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh chu k\u1ef3 tuy\u1ec7t v\u1eddi c\u1ee7a ch\u00fang, m\u1eb7c d\u00f9 hi\u1ec7u su\u1ea5t \u0111\u1ea7u ti\u00ean th\u1ea5p. Tuy nhi\u00ean, b\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng c\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt nh\u01b0 ti\u1ec1n th\u1ea1ch h\u00f3a, hi\u1ec7u su\u1ea5t \u0111\u1ea7u ti\u00ean c\u1ee7a ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3.<\/p>\n

V\u1ec1 m\u1eb7t \u1ee9ng d\u1ee5ng th\u01b0\u01a1ng m\u1ea1i, hi\u1ec7n nay, c\u00e1c \u1ee9ng d\u1ee5ng th\u01b0\u01a1ng m\u1ea1i ch\u00ednh c\u1ee7a v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m g\u1ed1c silicon<\/a> bao g\u1ed3m oxit silicon ph\u1ee7 carbon, nano silicon carbon, nano d\u00e2y silicon v\u00e0 h\u1ee3p kim silicon v\u00f4 \u0111\u1ecbnh h\u00ecnh. Trong s\u1ed1 \u0111\u00f3, oxit silicon<\/a> ph\u1ee7 carbon v\u00e0 nano silicon carbon c\u00f3 m\u1ee9c \u0111\u1ed9 th\u01b0\u01a1ng m\u1ea1i h\u00f3a cao nh\u1ea5t v\u00e0 ch\u00fang th\u01b0\u1eddng \u0111\u01b0\u1ee3c tr\u1ed9n v\u1edbi than ch\u00ec theo t\u1ef7 l\u1ec7 5%-10%. Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m g\u1ed1c silicon<\/a> \u0111ang d\u1ea7n \u0111\u01b0\u1ee3c c\u00f4ng nghi\u1ec7p h\u00f3a.<\/p>\n

Trong l\u0129nh v\u1ef1c pin th\u1ec3 r\u1eafn, v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m g\u1ed1c silicon<\/a> \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t trong nh\u1eefng h\u01b0\u1edbng ph\u00e1t tri\u1ec3n quan tr\u1ecdng c\u1ee7a v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m pin th\u1ec3 r\u1eafn do m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng l\u00fd thuy\u1ebft cao, hi\u1ec7u su\u1ea5t s\u1ea1c v\u00e0 x\u1ea3 nhanh tuy\u1ec7t v\u1eddi c\u0169ng nh\u01b0 hi\u1ec7u su\u1ea5t an to\u00e0n tuy\u1ec7t v\u1eddi.<\/p>\n","protected":false},"excerpt":{"rendered":"

V\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m g\u1ed1c silicon \u0111\u00e3 tr\u1edf th\u00e0nh \u0111i\u1ec3m n\u00f3ng trong nghi\u00ean c\u1ee9u v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m c\u1ee7a pin lithium-ion do ch\u00fang c\u00f3 dung l\u01b0\u1ee3ng l\u00fd thuy\u1ebft c\u1ef1c cao.<\/p>\n","protected":false},"author":7,"featured_media":134651,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-134688","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cong-nghiep-tin-tuc-vi"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/134688"}],"collection":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/comments?post=134688"}],"version-history":[{"count":1,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/134688\/revisions"}],"predecessor-version":[{"id":134689,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/134688\/revisions\/134689"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/134651"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=134688"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=134688"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=134688"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}