{"id":19595,"date":"2024-02-29T07:32:12","date_gmt":"2024-02-29T07:32:12","guid":{"rendered":"http:\/\/dgbellvietnam.com\/the-importance-of-li-ion-battery-safety-part-1\/"},"modified":"2024-10-21T11:54:58","modified_gmt":"2024-10-21T04:54:58","slug":"the-importance-of-li-ion-battery-safety-part-1","status":"publish","type":"post","link":"https:\/\/dgbellvietnam.com\/en\/the-importance-of-li-ion-battery-safety-part-1\/","title":{"rendered":"T\u1ea7m quan tr\u1ecdng c\u1ee7a an to\u00e0n pin Li-ion \u2013 Ph\u1ea7n 1"},"content":{"rendered":"
\n

Pin lithium ion n\u1ed5i b\u1eadt trong s\u1ed1 c\u00e1c thi\u1ebft b\u1ecb l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng h\u00f3a h\u1ecdc do m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng cao, m\u1eadt \u0111\u1ed9 c\u00f4ng su\u1ea5t cao v\u00e0 tu\u1ed5i th\u1ecd d\u00e0i. Ch\u00fang \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong l\u0129nh v\u1ef1c s\u1ea3n ph\u1ea9m \u0111i\u1ec7n t\u1eed c\u1ea7m tay do c\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn c\u1ee7a ch\u00fang. V\u1edbi s\u1ef1 h\u1ed7 tr\u1ee3 c\u1ee7a c\u00e1c ch\u00ednh s\u00e1ch qu\u1ed1c gia, nhu c\u1ea7u v\u1ec1 pin lithium-ion trong l\u0129nh v\u1ef1c xe \u0111i\u1ec7n v\u00e0 l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng quy m\u00f4 l\u1edbn c\u0169ng \u0111ang t\u0103ng tr\u01b0\u1edfng b\u00f9ng n\u1ed5.<\/span><\/p>\n

Pin lithium ion nh\u00ecn chung l\u00e0 an to\u00e0n, nh\u01b0ng c\u00f3 nh\u1eefng b\u00e1o c\u00e1o v\u1ec1 c\u00e1c v\u1ee5 tai n\u1ea1n an to\u00e0n \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y tr\u01b0\u1edbc c\u00f4ng ch\u00fang. Nh\u1eefng v\u00ed d\u1ee5 n\u1ed5i ti\u1ebfng bao g\u1ed3m c\u00e1c v\u1ee5 ch\u00e1y pin tr\u00ean m\u00e1y bay Boeing 737 v\u00e0 B 787 trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, c\u0169ng nh\u01b0 c\u00e1c v\u1ee5 ch\u00e1y Tesla Model S. Cho \u0111\u1ebfn nay, an to\u00e0n v\u1eabn l\u00e0 y\u1ebfu t\u1ed1 ch\u00ednh h\u1ea1n ch\u1ebf vi\u1ec7c \u1ee9ng d\u1ee5ng pin lithium-ion trong c\u00e1c l\u0129nh v\u1ef1c n\u0103ng l\u01b0\u1ee3ng cao v\u00e0 c\u00f4ng su\u1ea5t l\u1edbn. S\u1ef1 tho\u00e1t nhi\u1ec7t kh\u00f4ng ch\u1ec9 l\u00e0 nguy\u00ean nh\u00e2n c\u01a1 b\u1ea3n g\u00e2y ra c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 an to\u00e0n m\u00e0 c\u00f2n l\u00e0 m\u1ed9t trong nh\u1eefng thi\u1ebfu s\u00f3t h\u1ea1n ch\u1ebf hi\u1ec7u su\u1ea5t c\u1ee7a pin lithium-ion.<\/span><\/p>\n

C\u00e1c v\u1ea5n \u0111\u1ec1 an to\u00e0n ti\u1ec1m \u1ea9n c\u1ee7a pin lithium-ion \u1ea3nh h\u01b0\u1edfng r\u1ea5t l\u1edbn \u0111\u1ebfn l\u00f2ng tin c\u1ee7a ng\u01b0\u1eddi ti\u00eau d\u00f9ng. M\u1eb7c d\u00f9 BMS \u0111\u01b0\u1ee3c k\u1ef3 v\u1ecdng c\u00f3 th\u1ec3 gi\u00e1m s\u00e1t ch\u00ednh x\u00e1c c\u00e1c \u0111i\u1ec1u ki\u1ec7n an to\u00e0n v\u00e0 d\u1ef1 \u0111o\u00e1n s\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a m\u1ed9t s\u1ed1 l\u1ed7i nh\u1ea5t \u0111\u1ecbnh, nh\u01b0ng t\u00ecnh tr\u1ea1ng <\/span>m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t<\/span><\/a> r\u1ea5t ph\u1ee9c t\u1ea1p v\u00e0 \u0111a d\u1ea1ng, v\u00e0 r\u1ea5t kh\u00f3 \u0111\u1ec3 m\u1ed9t h\u1ec7 th\u1ed1ng k\u1ef9 thu\u1eadt duy nh\u1ea5t c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o t\u1ea5t c\u1ea3 c\u00e1c \u0111i\u1ec1u ki\u1ec7n an to\u00e0n g\u1eb7p ph\u1ea3i trong su\u1ed1t v\u00f2ng \u0111\u1eddi c\u1ee7a n\u00f3. Do \u0111\u00f3, vi\u1ec7c ph\u00e2n t\u00edch v\u00e0 nghi\u00ean c\u1ee9u c\u00e1c nguy\u00ean nh\u00e2n g\u00e2y m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t v\u1eabn l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 c\u00f3 m\u1ed9t pin lithium-ion an to\u00e0n v\u00e0 \u0111\u00e1ng tin c\u1eady.<\/span><\/p>\n

\u0110\u00e3 c\u00f3 nhi\u1ec1u nghi\u00ean c\u1ee9u li\u00ean quan v\u1ec1 c\u00e1c ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc li\u00ean quan \u0111\u1ebfn s\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a hi\u1ec7n t\u01b0\u1ee3ng m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t trong ph\u00e2n t\u00edch nhi\u1ec7t v\u00e0 b\u00e0i vi\u1ebft n\u00e0y s\u1ebd kh\u00f4ng tr\u00ecnh b\u00e0y th\u00eam. B\u00e0i vi\u1ebft n\u00e0y l\u1ea5y \u0111\u01b0\u1eddng \u0111\u1eddi c\u1ee7a pin \u0111i\u1ec7n l\u00e0m \u0111\u1ea7u m\u1ed1i \u0111\u1ec3 gi\u1ea3i th\u00edch v\u00e0 ph\u00e2n t\u00edch c\u00e1c y\u1ebfu t\u1ed1 v\u00e0 gi\u1ea3i ph\u00e1p h\u1ea1n ch\u1ebf hi\u1ec7u su\u1ea5t an to\u00e0n c\u1ee7a pin lithium-ion trong su\u1ed1t v\u00f2ng \u0111\u1eddi c\u1ee7a n\u00f3, nh\u1eb1m cung c\u1ea5p c\u01a1 s\u1edf c\u00f3 gi\u00e1 tr\u1ecb cho vi\u1ec7c nghi\u00ean c\u1ee9u c\u00e1c v\u1ea5n \u0111\u1ec1 an to\u00e0n.<\/span><\/p>\n

1. V\u1eadt li\u1ec7u pin<\/span><\/strong><\/span><\/h1>\n

Th\u00e0nh ph\u1ea7n b\u00ean trong c\u1ee7a pin lithium-ion ch\u1ee7 y\u1ebfu bao g\u1ed3m \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng, ch\u1ea5t \u0111i\u1ec7n ph\u00e2n, ch\u1ea5t t\u00e1ch v\u00e0 \u0111i\u1ec7n c\u1ef1c \u00e2m. D\u1ef1a tr\u00ean \u0111i\u1ec1u n\u00e0y, c\u00e1c tai \u0111i\u1ec7n c\u1ef1c \u0111\u01b0\u1ee3c h\u00e0n v\u00e0 bao b\u00ec b\u00ean ngo\u00e0i \u0111\u01b0\u1ee3c b\u1ecdc l\u1ea1i \u0111\u1ec3 t\u1ea1o th\u00e0nh m\u1ed9t \u00f4 pin ho\u00e0n ch\u1ec9nh. Sau c\u00e1c b\u01b0\u1edbc s\u1ea1c v\u00e0 x\u1ea3 ban \u0111\u1ea7u, h\u00ecnh th\u00e0nh v\u00e0 t\u00e1ch \u0111i\u1ec7n dung c\u1ee7a \u00f4 pin, n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng t\u1ea1i nh\u00e0 m\u00e1y. B\u01b0\u1edbc \u0111\u1ea7u ti\u00ean trong quy tr\u00ecnh n\u00e0y l\u00e0 l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u. C\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh an to\u00e0n c\u1ee7a v\u1eadt li\u1ec7u l\u00e0 n\u0103ng l\u01b0\u1ee3ng qu\u1ef9 \u0111\u1ea1o n\u1ed9i t\u1ea1i, c\u1ea5u tr\u00fac tinh th\u1ec3 v\u00e0 t\u00ednh ch\u1ea5t v\u1eadt li\u1ec7u c\u1ee7a ch\u00fang<\/span><\/p>\n

1.1. V\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng<\/span><\/span><\/h2>\n

Vai tr\u00f2 ch\u00ednh c\u1ee7a v\u1eadt li\u1ec7u ho\u1ea1t \u0111\u1ed9ng c\u1ef1c d\u01b0\u01a1ng trong pin l\u00e0 \u0111\u00f3ng g\u00f3p dung l\u01b0\u1ee3ng ri\u00eang v\u00e0 n\u0103ng l\u01b0\u1ee3ng ri\u00eang, v\u00e0 th\u1ebf \u0111i\u1ec7n c\u1ef1c n\u1ed9i t\u1ea1i c\u1ee7a ch\u00fang c\u00f3 t\u00e1c \u0111\u1ed9ng nh\u1ea5t \u0111\u1ecbnh \u0111\u1ebfn t\u00ednh an to\u00e0n. Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, lithium s\u1eaft phosphate, m\u1ed9t v\u1eadt li\u1ec7u \u0111i\u1ec7n \u00e1p trung b\u00ecnh v\u00e0 th\u1ea5p, \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i l\u00e0m v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng cho pin \u0111i\u1ec7n trong c\u00e1c ph\u01b0\u01a1ng ti\u1ec7n giao th\u00f4ng (nh\u01b0 xe \u0111i\u1ec7n hybrid (HEVS) v\u00e0 xe \u0111i\u1ec7n EVS) v\u00e0 c\u00e1c thi\u1ebft b\u1ecb l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng (nh\u01b0 b\u1ed9 ngu\u1ed3n \u0111i\u1ec7n li\u00ean t\u1ee5c (UPS) tr\u00ean to\u00e0n th\u1ebf gi\u1edbi.<\/span><\/p>\n

Tuy nhi\u00ean, l\u1ee3i th\u1ebf v\u1ec1 an to\u00e0n m\u00e0 lithium s\u1eaft phosphate th\u1ec3 hi\u1ec7n trong nhi\u1ec1u v\u1eadt li\u1ec7u th\u1ef1c s\u1ef1 ph\u1ea3i tr\u1ea3 gi\u00e1 b\u1eb1ng vi\u1ec7c hy sinh m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng, h\u1ea1n ch\u1ebf s\u1ee9c b\u1ec1n c\u1ee7a ng\u01b0\u1eddi d\u00f9ng (nh\u01b0 EVS, UPS). M\u1eb7c d\u00f9 v\u1eadt li\u1ec7u ba th\u00e0nh ph\u1ea7n th\u1ec3 hi\u1ec7n m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng tuy\u1ec7t v\u1eddi, l\u00e0 v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng l\u00fd t\u01b0\u1edfng cho pin \u0111i\u1ec7n, nh\u01b0ng c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 an to\u00e0n c\u1ee7a ch\u00fang v\u1eabn ch\u01b0a \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft \u0111\u1ea7y \u0111\u1ee7.<\/span><\/p>\n

\u0110\u1ec3 nghi\u00ean c\u1ee9u h\u00e0nh vi nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 th\u1ef1c hi\u1ec7n r\u1ea5t nhi\u1ec1u c\u00f4ng vi\u1ec7c v\u00e0 ph\u00e1t hi\u1ec7n ra r\u1eb1ng th\u1ebf \u0111i\u1ec7n c\u1ef1c n\u1ed9i t\u1ea1i v\u00e0 c\u1ea5u tr\u00fac tinh th\u1ec3 l\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 ch\u00ednh \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh an to\u00e0n c\u1ee7a ch\u00fang. V\u00ed d\u1ee5, s\u1ef1 k\u1ebft h\u1ee3p ho\u00e0n h\u1ea3o gi\u1eefa th\u1ebf \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng c\u1ee7a v\u1eadt li\u1ec7u v\u00e0 qu\u1ef9 \u0111\u1ea1o ph\u00e2n t\u1eed cao nh\u1ea5t do ch\u1ea5t \u0111i\u1ec7n ph\u00e2n HOMO chi\u1ebfm gi\u1eef \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn t\u00ednh \u1ed5n \u0111\u1ecbnh c\u1ee7a ch\u1ea5t \u0111i\u1ec7n ph\u00e2n;<\/span><\/p>\n

Nhi\u1ec7t \u0111\u1ed9 b\u1eaft \u0111\u1ea7u v\u00e0 gi\u1ea3i ph\u00f3ng nhi\u1ec7t c\u1ee7a ph\u1ea3n \u1ee9ng gi\u1eefa c\u00e1c v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng v\u00e0 ch\u1ea5t \u0111i\u1ec7n ph\u00e2n kh\u00e1c nhau c\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u00f9y thu\u1ed9c v\u00e0o vi\u1ec7c nhi\u1ec1u ion lithium c\u00f3 th\u1ec3 \u0111i qua m\u1ea1ng l\u01b0\u1edbi m\u1ed9t c\u00e1ch tr\u01a1n tru c\u00f9ng l\u00fac hay kh\u00f4ng. B\u1eb1ng c\u00e1ch l\u1ef1a ch\u1ecdn lo\u1ea1i v\u1eadt li\u1ec7u v\u00e0 pha t\u1ea1p th\u00e0nh ph\u1ea7n, l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p v\u1edbi c\u1eeda s\u1ed5 \u0111i\u1ec7n h\u00f3a \u0111i\u1ec7n ph\u00e2n v\u00e0 \u0111i\u1ec7n th\u1ebf, c\u00f3 nhi\u1ec7t \u0111\u1ed9 ph\u1ea3n \u1ee9ng ban \u0111\u1ea7u cao h\u01a1n v\u00e0 gi\u1ea3i ph\u00f3ng nhi\u1ec7t ph\u1ea3n \u1ee9ng th\u1ea5p h\u01a1n, hi\u1ec7u su\u1ea5t an to\u00e0n c\u1ee7a cell pin c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n theo quan \u0111i\u1ec3m c\u1ee7a v\u1eadt li\u1ec7u ho\u1ea1t \u0111\u1ed9ng \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng.<\/span><\/p>\n

1.2. V\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m<\/span><\/span><\/h2>\n

T\u00e1c \u0111\u1ed9ng c\u1ee7a v\u1eadt li\u1ec7u ho\u1ea1t t\u00ednh \u0111i\u1ec7n c\u1ef1c \u00e2m \u0111\u1ebfn hi\u1ec7u su\u1ea5t an to\u00e0n ch\u1ee7 y\u1ebfu xu\u1ea5t ph\u00e1t t\u1eeb m\u1ed1i quan h\u1ec7 gi\u1eefa n\u0103ng l\u01b0\u1ee3ng qu\u1ef9 \u0111\u1ea1o n\u1ed9i t\u1ea1i v\u00e0 c\u1ea5u h\u00ecnh ch\u1ea5t \u0111i\u1ec7n ph\u00e2n c\u1ee7a ch\u00fang. Trong qu\u00e1 tr\u00ecnh s\u1ea1c nhanh, t\u1ed1c \u0111\u1ed9 c\u00e1c ion lithium \u0111i qua m\u00e0ng SEI c\u00f3 th\u1ec3 ch\u1eadm h\u01a1n t\u1ed1c \u0111\u1ed9 l\u1eafng \u0111\u1ecdng c\u1ee7a lithium tr\u00ean \u0111i\u1ec7n c\u1ef1c \u00e2m. C\u00e1c nh\u00e1nh c\u00e2y c\u1ee7a lithium s\u1ebd ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n theo chu k\u1ef3 s\u1ea1c v\u00e0 x\u1ea3, c\u00f3 th\u1ec3 g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng \u0111o\u1ea3n m\u1ea1ch b\u00ean trong v\u00e0 \u0111\u1ed1t ch\u00e1y ch\u1ea5t \u0111i\u1ec7n ph\u00e2n d\u1ec5 ch\u00e1y, d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t. \u0110\u1eb7c \u0111i\u1ec3m n\u00e0y h\u1ea1n ch\u1ebf t\u00ednh an to\u00e0n c\u1ee7a \u0111i\u1ec7n c\u1ef1c \u00e2m trong qu\u00e1 tr\u00ecnh s\u1ea1c nhanh.<\/span><\/p>\n

Ngo\u00e0i s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a dendrite lithium, ph\u1ea3n \u1ee9ng gi\u1eefa v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m v\u00e0 ch\u1ea5t \u0111i\u1ec7n ph\u00e2n c\u0169ng l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t an to\u00e0n. \u1ede kho\u1ea3ng 100 \u2103, c\u00f3 th\u1ec3 quan s\u00e1t th\u1ea5y c\u00e1c \u0111\u1ec9nh t\u1ecfa nhi\u1ec7t c\u1ee7a than ch\u00ec nh\u00fang lithium v\u00e0 ch\u1ea5t \u0111i\u1ec7n ph\u00e2n, \u0111\u00e2y c\u0169ng \u0111\u01b0\u1ee3c coi l\u00e0 ph\u1ea3n \u1ee9ng ph\u00e2n h\u1ee7y c\u1ee7a m\u00e0ng SEI. T\u1ed1c \u0111\u1ed9 ph\u1ea3n \u1ee9ng t\u0103ng theo s\u1ef1 gia t\u0103ng di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang c\u1ee7a v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m.<\/span><\/p>\n

Sau khi m\u00e0ng SEI ph\u00e2n h\u1ee7y, lithium nh\u00fang trong \u0111i\u1ec7n c\u1ef1c \u00e2m s\u1ebd ti\u1ebfp t\u1ee5c ph\u1ea3n \u1ee9ng v\u1edbi ch\u1ea5t \u0111i\u1ec7n ph\u00e2n v\u00e0 ch\u1ea5t k\u1ebft d\u00ednh \u0111\u1ec3 gi\u1ea3i ph\u00f3ng nhi\u1ec7t, v\u00e0 nhi\u1ec7t ph\u1ea3n \u1ee9ng t\u0103ng l\u00ean khi l\u01b0\u1ee3ng ch\u00e8n lithium t\u0103ng. B\u1eb1ng c\u00e1ch c\u1ea3i thi\u1ec7n \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t c\u1ee7a SEI, gi\u1ea3m di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang c\u1ee7a v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m v\u00e0 gi\u1ea3m l\u01b0\u1ee3ng lithium nh\u00fang, hi\u1ec7u su\u1ea5t c\u1ee7a cell pin c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n theo quan \u0111i\u1ec3m c\u1ee7a v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m.<\/span><\/p>\n

1.3. Ch\u1ea5t \u0111i\u1ec7n gi\u1ea3i v\u00e0 m\u00e0ng<\/span><\/span><\/h2>\n

T\u00e1c \u0111\u1ed9ng c\u1ee7a ch\u1ea5t \u0111i\u1ec7n ph\u00e2n v\u00e0 ch\u1ea5t t\u00e1ch \u0111\u1ebfn an to\u00e0n ch\u1ee7 y\u1ebfu l\u00e0 do \u0111\u1eb7c t\u00ednh c\u1ee7a ch\u00fang. M\u1eb7c d\u00f9 \u0111\u1ed9 <\/span>\u1ed5n \u0111\u1ecbnh nhi\u1ec7t<\/span><\/a> c\u1ee7a mu\u1ed1i lithium l\u00e0 y\u1ebfu t\u1ed1 c\u01a1 b\u1ea3n \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t c\u1ee7a ch\u1ea5t \u0111i\u1ec7n ph\u00e2n, nh\u01b0ng t\u00e1c \u0111\u1ed9ng c\u1ee7a ch\u00fang \u0111\u1ebfn hi\u1ec7u su\u1ea5t an to\u00e0n c\u1ee7a pin b\u1ecb h\u1ea1n ch\u1ebf do nhi\u1ec7t ph\u1ea3n \u1ee9ng ph\u00e2n h\u1ee7y t\u01b0\u01a1ng \u0111\u1ed1i nh\u1ecf. T\u00ednh d\u1ec5 ch\u00e1y v\u00e0 tr\u1ea1ng th\u00e1i l\u1ecfng c\u1ee7a ch\u1ea5t \u0111i\u1ec7n ph\u00e2n th\u01b0\u01a1ng m\u1ea1i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i l\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn an to\u00e0n.<\/span><\/p>\n

Ngo\u00e0i ra, s\u1eed d\u1ee5ng ch\u1ea5t \u0111i\u1ec7n ph\u00e2n c\u00f3 c\u1eeda s\u1ed5 \u0111i\u1ec7n h\u00f3a r\u1ed9ng h\u01a1n (\u0111\u1eb7c bi\u1ec7t l\u00e0 LUMO cao h\u01a1n) v\u00e0 th\u00eam v\u1eadt li\u1ec7u ch\u1ed1ng ch\u00e1y v\u00e0o ch\u1ea5t \u0111i\u1ec7n ph\u00e2n, ch\u1eb3ng h\u1ea1n nh\u01b0 bi\u1ebfn \u0111\u1ed5i ch\u1ea5t l\u1ecfng ion h\u1ed7n h\u1ee3p v\u00e0 ch\u1ea5t \u0111i\u1ec7n ph\u00e2n l\u1ecfng h\u1eefu c\u01a1 th\u00e0nh ch\u1ea5t \u0111i\u1ec7n ph\u00e2n kh\u00f4ng ch\u00e1y, l\u00e0 nh\u1eefng c\u00e1ch hi\u1ec7u qu\u1ea3 \u0111\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 an to\u00e0n. \u0110\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc (\u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 b\u1ec1n \u0111\u00e2m th\u1ee7ng), \u0111\u1ed9 x\u1ed1p, \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u v\u1ec1 \u0111\u1ed9 d\u00e0y v\u00e0 nhi\u1ec7t \u0111\u1ed9 v\u1ee1 c\u1ee7a m\u00e0ng ng\u0103n l\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng quy\u1ebft \u0111\u1ecbnh \u0111\u1ed9 an to\u00e0n c\u1ee7a n\u00f3.<\/span><\/p>\n

Vi\u1ec7c \u1ee9ng d\u1ee5ng l\u1edbp ph\u1ee7 g\u1ed1m trong m\u00e0ng ng\u0103n c\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc c\u1ee7a m\u00e0ng ban \u0111\u1ea7u, cho ph\u00e9p m\u00e0ng ng\u0103n th\u1ec3 hi\u1ec7n hi\u1ec7u su\u1ea5t tuy\u1ec7t v\u1eddi v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0111\u00e2m th\u1ee7ng v\u00e0 gi\u1ea3m \u0111\u1ed9 d\u00e0y. Nhi\u1ec7t \u0111\u1ed9 m\u00e0 c\u1ea5u tr\u00fac vi x\u1ed1p \u0111\u00f3ng l\u1ea1i, d\u00f9 qu\u00e1 cao hay qu\u00e1 th\u1ea5p, \u0111\u1ec1u c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a cell pin. Do \u0111\u00f3, c\u1ea7n ph\u1ea3i xem x\u00e9t to\u00e0n di\u1ec7n th\u00e0nh ph\u1ea7n c\u1ee7a polyme m\u00e0ng v\u00e0 c\u1ea5u h\u00ecnh t\u1ed1i \u01b0u c\u1ee7a c\u1ea5u tr\u00fac x\u1ed1p, \u0111\u1ed3ng th\u1eddi \u0111\u1ea3m b\u1ea3o nhi\u1ec7t \u0111\u1ed9 \u0111\u1ee9t g\u00e3y cao h\u01a1n nhi\u1ec7t \u0111\u1ed9 ng\u1eaft.<\/span><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Pin lithium ion n\u1ed5i b\u1eadt trong s\u1ed1 c\u00e1c thi\u1ebft b\u1ecb l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng h\u00f3a h\u1ecdc do m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng cao, m\u1eadt \u0111\u1ed9 c\u00f4ng su\u1ea5t cao v\u00e0 tu\u1ed5i th\u1ecd d\u00e0i. Ch\u00fang \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong l\u0129nh v\u1ef1c s\u1ea3n ph\u1ea9m \u0111i\u1ec7n t\u1eed c\u1ea7m tay do c\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn c\u1ee7a ch\u00fang. V\u1edbi<\/p>\n","protected":false},"author":1,"featured_media":19596,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[],"class_list":["post-19595","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc-cong-nghe"],"acf":[],"_links":{"self":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19595","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/comments?post=19595"}],"version-history":[{"count":2,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19595\/revisions"}],"predecessor-version":[{"id":21918,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19595\/revisions\/21918"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media\/19596"}],"wp:attachment":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=19595"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=19595"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=19595"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}