{"id":19672,"date":"2023-08-17T08:43:12","date_gmt":"2023-08-17T08:43:12","guid":{"rendered":"http:\/\/dgbellvietnam.com\/crush-test-for-lithium-battery\/"},"modified":"2024-10-21T20:05:11","modified_gmt":"2024-10-21T13:05:11","slug":"crush-test-for-lithium-battery","status":"publish","type":"post","link":"https:\/\/dgbellvietnam.com\/en\/crush-test-for-lithium-battery\/","title":{"rendered":"Th\u1eed nghi\u1ec7m nghi\u1ec1n pin Lithium"},"content":{"rendered":"
\n

V\u1edbi s\u1ef1 ph\u1ed5 bi\u1ebfn c\u1ee7a xe \u0111i\u1ec7n n\u0103ng l\u01b0\u1ee3ng m\u1edbi, c\u00e1c v\u1ea5n \u0111\u1ec1 an to\u00e0n c\u1ee7a xe \u0111i\u1ec7n \u0111ang ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c quan t\u00e2m. Trong s\u1ed1 \u0111\u00f3, \u0111\u1eb7c \u0111i\u1ec3m an to\u00e0n c\u1ee7a pin lithium l\u00e0 m\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 ch\u00ednh \u0111\u1ed1i v\u1edbi s\u1ef1 an to\u00e0n c\u1ee7a xe \u0111i\u1ec7n. B\u00e0i vi\u1ebft n\u00e0y l\u1ea5y pin lithium m\u1ec1m ba th\u00e0nh ph\u1ea7n l\u00e0m \u0111\u1ed1i t\u01b0\u1ee3ng nghi\u00ean c\u1ee9u v\u00e0 th\u00f4ng qua nghi\u00ean c\u1ee9u th\u1ef1c nghi\u1ec7m v\u00e0 m\u00f4 ph\u1ecfng, kh\u00e1m ph\u00e1 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m an to\u00e0n c\u1ee7a pin lithium trong c\u00e1c h\u00ecnh d\u1ea1ng \u0111\u1ea7u nghi\u1ec1n kh\u00e1c nhau, c\u00e1c v\u1ecb tr\u00ed nghi\u1ec1n kh\u00e1c nhau v\u00e0 c\u00e1c \u0111i\u1ec1u ki\u1ec7n tr\u1ea1ng th\u00e1i s\u1ea1c ban \u0111\u1ea7u (SOC) kh\u00e1c nhau.<\/span><\/span><\/p>\n

K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u ch\u1ec9 ra r\u1eb1ng h\u00ecnh d\u1ea1ng \u0111\u1ea7u \u00e9p c\u00e0ng s\u1eafc v\u00e0 h\u1eb9p th\u00ec th\u1eddi gian t\u0103ng nhi\u1ec7t \u0111\u1ed9 \u0111\u1ed9t ng\u1ed9t c\u1ee7a pin lithium c\u00e0ng s\u1edbm, t\u1ed5n th\u1ea5t nhi\u1ec7t \u0111\u1ed9 \u0111\u1ed9t ng\u1ed9t c\u00e0ng l\u1edbn v\u00e0 \u0111i\u1ec7n tr\u1edf b\u00ean trong t\u0103ng c\u00e0ng cao. V\u1ecb tr\u00ed \u00e9p c\u00e0ng g\u1ea7n m\u00e9p d\u01b0\u1edbi c\u1ee7a pin lithium th\u00ec kh\u1ea3 n\u0103ng t\u0103ng nhi\u1ec7t \u0111\u1ed9 g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t c\u00e0ng cao. V\u1ecb tr\u00ed \u00e9p c\u00e0ng g\u1ea7n tai c\u1ef1c th\u00ec t\u1ed5n th\u1ea5t dung l\u01b0\u1ee3ng v\u00e0 gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf b\u00ean trong c\u00e0ng l\u1edbn. Ngo\u00e0i ra, SOC c\u1ee7a pin lithium c\u00e0ng cao th\u00ec kh\u1ea3 n\u0103ng x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t, s\u1ee5t \u00e1p c\u00e0ng l\u1edbn, t\u1ed5n th\u1ea5t dung l\u01b0\u1ee3ng c\u00e0ng l\u1edbn v\u00e0 \u0111i\u1ec7n tr\u1edf b\u00ean trong c\u00e0ng l\u1edbn.<\/span><\/span><\/p>\n

\u0110\u1ec3 hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 \u0111\u1eb7c t\u00ednh an to\u00e0n c\u1ee7a pin lithium trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u00e1c nhau, b\u00e0i vi\u1ebft n\u00e0y c\u0169ng thi\u1ebft l\u1eadp c\u00e1c m\u00f4 h\u00ecnh m\u00f4 ph\u1ecfng nhi\u1ec7t v\u00e0 \u1ee9ng su\u1ea5t cho pin lithium d\u1ef1a tr\u00ean n\u1ec1n t\u1ea3ng ph\u1ea7n m\u1ec1m COMSOL v\u00e0 ti\u1ebfn h\u00e0nh m\u00f4 ph\u1ecfng nhi\u1ec7t \u0111\u1ed9 v\u00e0 thay \u0111\u1ed5i \u1ee9ng su\u1ea5t c\u1ee7a pin lithium trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n nghi\u1ec1n kh\u00e1c nhau. K\u1ebft qu\u1ea3 m\u00f4 ph\u1ecfng cho th\u1ea5y c\u00e1c m\u1eabu nhi\u1ec7t \u0111\u1ed9 v\u00e0 bi\u1ebfn d\u1ea1ng c\u1ee7a pin lithium sau khi nghi\u1ec1n ph\u00f9 h\u1ee3p t\u1ed1t v\u1edbi c\u00e1c th\u00ed nghi\u1ec7m nghi\u1ec1n th\u1ef1c t\u1ebf.<\/span><\/span><\/p>\n

1 Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng<\/span><\/span><\/strong><\/span><\/h1>\n

Khi pin lithium \u0111\u01b0\u1ee3c x\u1ea3, c\u00e1c electron ch\u1ea3y t\u1eeb \u0111i\u1ec7n c\u1ef1c \u00e2m \u0111\u1ebfn \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng th\u00f4ng qua m\u1ed9t m\u1ea1ch ngo\u00e0i, trong khi c\u00e1c ion lithium di chuy\u1ec3n t\u1eeb \u0111i\u1ec7n c\u1ef1c \u00e2m \u0111\u1ebfn \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng. Trong qu\u00e1 tr\u00ecnh n\u00e0y, c\u00e1c ion lithium \u0111\u01b0\u1ee3c chuy\u1ec3n qua ch\u1ea5t \u0111i\u1ec7n ph\u00e2n v\u00e0 \u0111i qua b\u1ed9 t\u00e1ch \u0111\u1ec3 \u0111\u1ebfn \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng. Qu\u00e1 tr\u00ecnh n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ph\u1ea3n \u1ee9ng lo\u1ea1i b\u1ecf lithium.<\/span><\/span><\/p>\n

Khi pin lithium \u0111\u01b0\u1ee3c s\u1ea1c, c\u00e1c electron ch\u1ea3y t\u1eeb \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng \u0111\u1ebfn \u0111i\u1ec7n c\u1ef1c \u00e2m th\u00f4ng qua m\u1ed9t m\u1ea1ch ngo\u00e0i, trong khi c\u00e1c ion lithium di chuy\u1ec3n t\u1eeb \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng \u0111\u1ebfn \u0111i\u1ec7n c\u1ef1c \u00e2m. Trong qu\u00e1 tr\u00ecnh n\u00e0y, c\u00e1c ion lithium \u0111\u01b0\u1ee3c chuy\u1ec3n qua ch\u1ea5t \u0111i\u1ec7n ph\u00e2n v\u00e0 \u0111i qua b\u1ed9 t\u00e1ch \u0111\u1ec3 \u0111\u1ebfn \u0111i\u1ec7n c\u1ef1c \u00e2m. Qu\u00e1 tr\u00ecnh n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ph\u1ea3n \u1ee9ng xen k\u1ebd lithium.<\/span><\/span><\/p>\n

S\u1ef1 m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t c\u1ee7a pin lithium l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng qu\u00e1 nhi\u1ec7t, \u0111\u00e1nh l\u1eeda v\u00e0 n\u1ed5 do s\u1ef1 thay \u0111\u1ed5i nhanh ch\u00f3ng v\u1ec1 t\u1ed1c \u0111\u1ed9 t\u0103ng nhi\u1ec7t \u0111\u1ed9 t\u1ef1 nhi\u00ean c\u1ee7a pin do ph\u1ea3n \u1ee9ng d\u00e2y chuy\u1ec1n gi\u1ea3i ph\u00f3ng nhi\u1ec7t c\u1ee7a t\u1eebng cell. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y c\u00f3 th\u1ec3 do ch\u1eadp m\u1ea1ch b\u00ean trong, s\u1ea1c qu\u00e1 m\u1ee9c, \u00e9p, nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 c\u00e1c l\u00fd do kh\u00e1c trong pin. Khi nhi\u1ec7t \u0111\u1ed9 c\u1ee7a pin t\u0103ng \u0111\u1ebfn m\u1ed9t m\u1ee9c \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh, t\u1ed1c \u0111\u1ed9 ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc b\u00ean trong pin t\u0103ng t\u1ed1c, t\u1ea1o ra m\u1ed9t l\u01b0\u1ee3ng l\u1edbn n\u0103ng l\u01b0\u1ee3ng nhi\u1ec7t, d\u1eabn \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 pin t\u0103ng nhanh v\u00e0 cu\u1ed1i c\u00f9ng d\u1eabn \u0111\u1ebfn s\u1ef1 m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t c\u1ee7a pin. Trong qu\u00e1 tr\u00ecnh n\u00e0y, ch\u1ea5t \u0111i\u1ec7n ph\u00e2n b\u00ean trong pin s\u1ebd b\u1ecb ph\u00e2n h\u1ee7y, v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng v\u00e0 \u0111i\u1ec7n c\u1ef1c \u00e2m s\u1ebd b\u1ecb ch\u00e1y v\u00e0 pin s\u1ebd b\u1eaft l\u1eeda ho\u1eb7c ph\u00e1t n\u1ed5.<\/span><\/span><\/p>\n

Do \u0111\u00f3, khi s\u1eed d\u1ee5ng pin lithium, c\u1ea7n ch\u00fa \u00fd \u0111\u1ebfn v\u1ea5n \u0111\u1ec1 an to\u00e0n, tr\u00e1nh c\u00e1c thao t\u00e1c b\u1ea5t l\u1ee3i nh\u01b0 s\u1ea1c qu\u00e1 m\u1ee9c, x\u1ea3 qu\u00e1 m\u1ee9c, b\u00f3p, nhi\u1ec7t \u0111\u1ed9 cao \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 \u1ed5n \u0111\u1ecbnh c\u1ee7a pin. \u0110\u1ed3ng th\u1eddi, trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng, c\u1ea7n th\u01b0\u1eddng xuy\u00ean ki\u1ec3m tra t\u00ecnh tr\u1ea1ng c\u1ee7a pin, ph\u00e1t hi\u1ec7n v\u00e0 x\u1eed l\u00fd k\u1ecbp th\u1eddi c\u00e1c v\u1ea5n \u0111\u1ec1 \u0111\u1ec3 tr\u00e1nh tai n\u1ea1n an to\u00e0n.<\/span><\/span><\/p>\n

2 Pin Lithium b\u1ecb \u0111\u00e8 b\u1eb9p<\/span><\/span><\/strong><\/span><\/h1>\n

C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng nghi\u00ean c\u1ee9u hi\u1ec7n c\u00f3 ch\u1ee7 y\u1ebfu bao g\u1ed3m pin lithium s\u1eaft phosphate v\u1ecf vu\u00f4ng v\u00e0 pin lithium h\u00ecnh tr\u1ee5 18650. C\u00f3 hai ph\u01b0\u01a1ng ph\u00e1p nghi\u00ean c\u1ee9u ch\u00ednh: nghi\u00ean c\u1ee9u th\u1ef1c nghi\u1ec7m v\u00e0 nghi\u00ean c\u1ee9u m\u00f4 ph\u1ecfng th\u1eb3ng. Trong nghi\u00ean c\u1ee9u th\u1ef1c nghi\u1ec7m, c\u00f3 ba ph\u01b0\u01a1ng ph\u00e1p t\u1ea3i c\u01a1 h\u1ecdc ch\u00ednh cho pin lithium h\u00ecnh tr\u1ee5: ph\u01b0\u01a1ng ph\u00e1p u\u1ed1n ba \u0111i\u1ec3m, ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n xuy\u00ean t\u00e2m tr\u1ee5c v\u00e0 ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n c\u1ee5c b\u1ed9; C\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u1ea3i c\u01a1 h\u1ecdc ch\u00ednh cho pin lithium h\u00ecnh vu\u00f4ng l\u00e0 ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n c\u1ee5c b\u1ed9 v\u00e0 ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n t\u1ea5m ph\u1eb3ng. C\u00e1c h\u00ecnh d\u1ea1ng ch\u00ednh c\u1ee7a \u0111\u1ea7u nghi\u1ec1n l\u00e0 ph\u1eb3ng, h\u00ecnh c\u1ea7u, h\u00ecnh b\u00e1n c\u1ea7u v\u00e0 h\u00ecnh n\u00f3n.<\/span><\/span><\/p>\n

3 Bu\u1ed3ng th\u1eed nghi\u1ec7m<\/span><\/span><\/strong><\/span><\/h1>\n

Bu\u1ed3ng th\u1eed nghi\u1ec7m nghi\u1ec1n pin lithium<\/span><\/span><\/strong><\/a><\/span><\/h2>\n

C\u00f3 kh\u1ea3 n\u0103ng cung c\u1ea5p tr\u1ea1ng th\u00e1i nghi\u1ec1n trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u00e1c nhau trong khi ghi l\u1ea1i nh\u1eefng thay \u0111\u1ed5i v\u1ec1 \u0111\u1eb7c \u0111i\u1ec3m an to\u00e0n c\u1ee7a pin. Thi\u1ebft b\u1ecb n\u00e0y th\u01b0\u1eddng bao g\u1ed3m m\u1ed9t thi\u1ebft b\u1ecb n\u00e9n, h\u1ec7 th\u1ed1ng thu th\u1eadp d\u1eef li\u1ec7u, thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 an to\u00e0n v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n kh\u00e1c. Trong th\u00ed nghi\u1ec7m, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 s\u1eed d\u1ee5ng m\u1ed9t n\u1ec1n t\u1ea3ng th\u1eed nghi\u1ec7m \u00e9p \u0111\u1ec3 \u00e9p pin lithium v\u1edbi c\u00e1c h\u00ecnh d\u1ea1ng, l\u1ef1c v\u00e0 v\u1ecb tr\u00ed kh\u00e1c nhau \u0111\u1ec3 ph\u00e2n t\u00edch nh\u1eefng thay \u0111\u1ed5i v\u1ec1 \u0111\u1eb7c \u0111i\u1ec3m an to\u00e0n c\u1ee7a pin lithium trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u00e1c nhau. H\u1ec7 th\u1ed1ng thu th\u1eadp d\u1eef li\u1ec7u s\u1ebd thu th\u1eadp c\u00e1c th\u00f4ng s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m an to\u00e0n theo th\u1eddi gian th\u1ef1c nh\u01b0 nhi\u1ec7t \u0111\u1ed9, \u0111i\u1ec7n \u00e1p, \u0111i\u1ec7n tr\u1edf trong v\u00e0 dung l\u01b0\u1ee3ng c\u1ee7a pin lithium \u0111\u1ec3 gi\u00fap c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u hi\u1ec3u \u0111\u01b0\u1ee3c nh\u1eefng thay \u0111\u1ed5i trong pin lithium trong qu\u00e1 tr\u00ecnh nghi\u1ec1n. Thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 an to\u00e0n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 b\u1ea3o v\u1ec7 s\u1ef1 an to\u00e0n c\u1ee7a nh\u00e2n vi\u00ean v\u00e0 thi\u1ebft b\u1ecb trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m.<\/span><\/span><\/p>\n

H\u1ec7 th\u1ed1ng thu th\u1eadp th\u00f4ng s\u1ed1<\/span><\/span><\/strong><\/span><\/h2>\n

H\u1ec7 th\u1ed1ng thu th\u1eadp bao g\u1ed3m h\u1ec7 th\u1ed1ng thu th\u1eadp nhi\u1ec7t \u0111\u1ed9, h\u1ec7 th\u1ed1ng thu th\u1eadp \u0111i\u1ec7n \u00e1p, h\u1ec7 th\u1ed1ng thu th\u1eadp \u0111i\u1ec7n tr\u1edf v\u00e0 h\u1ec7 th\u1ed1ng thu th\u1eadp dung l\u01b0\u1ee3ng pin. Trong s\u1ed1 \u0111\u00f3, h\u1ec7 th\u1ed1ng thu th\u1eadp nhi\u1ec7t \u0111\u1ed9 s\u1eed d\u1ee5ng c\u1eb7p nhi\u1ec7t \u0111i\u1ec7n lo\u1ea1i K v\u00e0 m\u00f4-\u0111un thu th\u1eadp d\u1eef li\u1ec7u nhi\u1ec7t \u0111\u1ed9 8 k\u00eanh \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u \u0111\u1ebfn m\u00e1y t\u00ednh ph\u00eda tr\u00ean th\u00f4ng qua RS485 \u0111\u1ebfn USB. H\u1ec7 th\u1ed1ng thu th\u1eadp \u0111i\u1ec7n \u00e1p s\u1eed d\u1ee5ng m\u00e1y bi\u1ebfn \u00e1p \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u v\u00e0 truy\u1ec1n d\u1eef li\u1ec7u \u0111\u1ebfn m\u00e1y t\u00ednh ph\u00eda tr\u00ean th\u00f4ng qua RS485 \u0111\u1ebfn USB; H\u1ec7 th\u1ed1ng thu th\u1eadp \u0111i\u1ec7n tr\u1edf s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p chia \u0111i\u1ec7n \u00e1p \u0111i\u1ec7n tr\u1edf \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u v\u00e0 truy\u1ec1n d\u1eef li\u1ec7u \u0111\u1ebfn m\u00e1y t\u00ednh ph\u00eda tr\u00ean th\u00f4ng qua RS485 \u0111\u1ebfn USB; H\u1ec7 th\u1ed1ng thu th\u1eadp dung l\u01b0\u1ee3ng pin s\u1eed d\u1ee5ng m\u00e1y ki\u1ec3m tra dung l\u01b0\u1ee3ng pin kali \u0111\u1ec3 th\u1eed nghi\u1ec7m v\u00e0 truy\u1ec1n k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m \u0111\u1ebfn m\u00e1y t\u00ednh ph\u00eda tr\u00ean. To\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng thu th\u1eadp \u0111\u1ea1t \u0111\u01b0\u1ee3c vi\u1ec7c thu th\u1eadp v\u00e0 truy\u1ec1n d\u1eef li\u1ec7u th\u00f4ng qua m\u00f4-\u0111un thu th\u1eadp d\u1eef li\u1ec7u v\u00e0 cu\u1ed1i c\u00f9ng hi\u1ec3n th\u1ecb v\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u tr\u00ean m\u00e1y t\u00ednh ph\u00eda tr\u00ean.<\/span><\/span><\/p>\n

4 K\u1ebft lu\u1eadn<\/span><\/span><\/strong><\/span><\/h1>\n

K\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m nghi\u1ec1n SOC ban \u0111\u1ea7u kh\u00e1c nhau:<\/span><\/span><\/p>\n

(1) \u1ea2nh h\u01b0\u1edfng c\u1ee7a SOC ban \u0111\u1ea7u kh\u00e1c nhau \u0111\u1ebfn ngo\u1ea1i h\u00ecnh c\u1ee7a pin lithium l\u00e0 kh\u00f4ng \u0111\u00e1ng k\u1ec3.<\/span><\/span><\/p>\n

(2) C\u00e1c th\u00f4ng s\u1ed1 \u0111\u1eb7c t\u00ednh an to\u00e0n c\u1ee7a pin lithium c\u00f3 SOC ban \u0111\u1ea7u kh\u00e1c nhau s\u1ebd kh\u00e1c nhau sau khi b\u1ecb nghi\u1ec1n n\u00e1t.<\/span><\/span><\/p>\n

(3) Pin lithium SOC 100% c\u00f3 \u0111\u1ed9 d\u00e0y d\u00e0y h\u01a1n \u1edf \u0111i\u1ec3m \u00e9p.<\/span><\/span><\/p>\n

K\u1ebft qu\u1ea3 th\u1ef1c nghi\u1ec7m nghi\u1ec1n v\u1edbi c\u00e1c h\u00ecnh d\u1ea1ng \u0111\u1ea7u nghi\u1ec1n kh\u00e1c nhau:<\/span><\/span><\/p>\n

(1) \u0110\u1ea7u nghi\u1ec1n g\u00f3c vu\u00f4ng t\u1ea1o ra di\u1ec7n t\u00edch nghi\u1ec1n l\u1edbn h\u01a1n cho pin lithium v\u00e0 v\u1ecb tr\u00ed nghi\u1ec1n t\u01b0\u01a1ng \u0111\u1ed1i h\u1eb9p.<\/span><\/span><\/p>\n

(2) \u0110\u1ea7u nghi\u1ec1n h\u00ecnh tr\u1ee5 t\u1ea1o ra di\u1ec7n t\u00edch nghi\u1ec1n nh\u1ecf h\u01a1n cho pin lithium v\u00e0 v\u1ecb tr\u00ed nghi\u1ec1n t\u01b0\u01a1ng \u0111\u1ed1i t\u00f9.<\/span><\/span><\/p>\n

(3) Trong c\u00f9ng \u0111i\u1ec1u ki\u1ec7n SOC ban \u0111\u1ea7u v\u00e0 v\u1ecb tr\u00ed nghi\u1ec1n, c\u00e1c \u0111\u1eb7c t\u00ednh an to\u00e0n c\u1ee7a pin lithium c\u00f3 hai h\u00ecnh d\u1ea1ng \u0111\u1ea7u nghi\u1ec1n kh\u00e1c nhau nh\u01b0 sau:<\/span><\/span><\/p>\n

\u1ea2nh h\u01b0\u1edfng c\u1ee7a c\u00e1c con s\u1ed1 l\u00e0 kh\u00e1c nhau.<\/span><\/span><\/p>\n

\n
<\/div>\n
<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

V\u1edbi s\u1ef1 ph\u1ed5 bi\u1ebfn c\u1ee7a xe \u0111i\u1ec7n n\u0103ng l\u01b0\u1ee3ng m\u1edbi, c\u00e1c v\u1ea5n \u0111\u1ec1 an to\u00e0n c\u1ee7a xe \u0111i\u1ec7n \u0111ang ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c quan t\u00e2m. Trong s\u1ed1 \u0111\u00f3, \u0111\u1eb7c \u0111i\u1ec3m an to\u00e0n c\u1ee7a pin lithium l\u00e0 m\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 ch\u00ednh \u0111\u1ed1i v\u1edbi s\u1ef1 an to\u00e0n c\u1ee7a xe \u0111i\u1ec7n. B\u00e0i vi\u1ebft n\u00e0y l\u1ea5y pin lithium<\/p>\n","protected":false},"author":1,"featured_media":19673,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[],"class_list":["post-19672","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\/19672","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=19672"}],"version-history":[{"count":1,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19672\/revisions"}],"predecessor-version":[{"id":21970,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19672\/revisions\/21970"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media\/19673"}],"wp:attachment":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=19672"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=19672"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=19672"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}