{"id":19587,"date":"2024-03-21T07:46:10","date_gmt":"2024-03-21T07:46:10","guid":{"rendered":"http:\/\/dgbellvietnam.com\/lithium-ion-battery-nail-penetration-test\/"},"modified":"2024-10-13T10:40:42","modified_gmt":"2024-10-13T03:40:42","slug":"lithium-ion-battery-nail-penetration-test","status":"publish","type":"post","link":"https:\/\/dgbellvietnam.com\/en\/lithium-ion-battery-nail-penetration-test\/","title":{"rendered":"Th\u1eed nghi\u1ec7m xuy\u00ean \u0111inh pin Lithium-ion"},"content":{"rendered":"
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\u00dd ngh\u0129a c\u1ee7a <\/span>vi\u1ec7c th\u1eed nghi\u1ec7m \u0111\u00e2m xuy\u00ean<\/span><\/a><\/strong><\/span><\/h1>\n

Th\u1eed nghi\u1ec7m xuy\u00ean \u0111inh l\u00e0 ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m ng\u1eafn m\u1ea1ch b\u00ean trong \u0111\u1ec3 th\u1eed nghi\u1ec7m \u0111\u1ed9 an to\u00e0n c\u1ee7a pin lithium-ion \u0111\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c ng\u1eafn m\u1ea1ch b\u00ean trong. S\u1eed d\u1ee5ng \u0111inh th\u00e9p \u0111\u1ec3 xuy\u00ean qua pin, m\u00f4 ph\u1ecfng ng\u1eafn m\u1ea1ch b\u00ean trong v\u00e0 ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m \u0111\u1ec3 x\u00e1c nh\u1eadn xem pin c\u00f3 b\u1ed1c kh\u00f3i, b\u1eaft l\u1eeda hay v\u1ee1 kh\u00f4ng. Ngo\u00e0i ra, th\u1eed nghi\u1ec7m xuy\u00ean \u0111inh kh\u00f4ng ch\u1ec9 l\u00e0 th\u1eed nghi\u1ec7m \u0111\u1ec3 x\u00e1c nh\u1eadn \u0111\u1ed9 an to\u00e0n c\u1ee7a pin m\u00e0 c\u00f2n l\u00e0 th\u1eed nghi\u1ec7m \u0111\u1ec3 hi\u1ec3u c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 b\u1ea3n c\u1ee7a pin.<\/span><\/p>\n

Trong \u0111i\u1ec1u ki\u1ec7n b\u00ecnh th\u01b0\u1eddng, c\u00e1c t\u1ea5m \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng v\u00e0 \u00e2m c\u1ee7a pin lithium-ion \u0111\u01b0\u1ee3c c\u00e1ch \u0111i\u1ec7n b\u1eb1ng m\u1ed9t l\u1edbp m\u00e0ng c\u00e1ch \u0111i\u1ec7n polymer trong ch\u1ea5t \u0111i\u1ec7n ph\u00e2n h\u1eefu c\u01a1 \u2013 m\u1ed9t l\u1edbp ng\u0103n c\u00e1ch. \u1ede tr\u1ea1ng th\u00e1i n\u00e0y, vi\u1ec7c \u0111\u01b0a \u0111inh th\u00e9p v\u00e0o b\u00ean trong pin lithium-ion s\u1ebd t\u1ea1o ra m\u1ed9t m\u1ea1ch ng\u1eafn gi\u1eefa c\u00e1c t\u1ea5m \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng v\u00e0 \u00e2m, bu\u1ed9c ph\u1ea3i th\u1ef1c hi\u1ec7n th\u1eed nghi\u1ec7m ng\u1eafn m\u1ea1ch b\u00ean trong. \u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m n\u00e0y l\u00e0 c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh c\u00e1c \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m nh\u01b0 \u0111\u01b0\u1eddng k\u00ednh, v\u1eadt li\u1ec7u, \u0111\u1ed9 s\u00e2u ch\u00e8n, v\u1ecb tr\u00ed ch\u00e8n v\u00e0 t\u1ed1c \u0111\u1ed9 ch\u00e8n c\u1ee7a \u0111inh th\u00e9p \u0111\u01b0\u1ee3c ch\u00e8n v\u00e0o pin.<\/span><\/p>\n

Nguy c\u01a1 \u0111\u00e2m xuy\u00ean<\/span><\/strong><\/span><\/h1>\n

Nhu c\u1ea7u th\u1eed nghi\u1ec7m \u0111\u1ed9 xuy\u00ean \u0111inh trong pin lithium-ion c\u00f3 ngh\u0129a l\u00e0 ch\u00fang d\u1ec5 b\u1ecb ng\u1eafn m\u1ea1ch b\u00ean trong v\u00e0 n\u1ebfu x\u1ea3y ra ng\u1eafn m\u1ea1ch, ch\u00fang s\u1ebd \u1edf tr\u1ea1ng th\u00e1i r\u1ea5t nguy hi\u1ec3m. Pin lithium-ion c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m l\u00e0 m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng cao, \u0111i\u1ec7n tr\u1edf trong th\u1ea5p v\u00e0 cho ph\u00e9p d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua cao, khi\u1ebfn ch\u00fang tr\u1edf n\u00ean c\u1ef1c k\u1ef3 nguy hi\u1ec3m. N\u00f3i chung, hi\u1ec7n t\u01b0\u1ee3ng ng\u1eafn m\u1ea1ch b\u00ean trong pin trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng l\u00e0 do s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a c\u00e1c v\u1eadt th\u1ec3 l\u1ea1 d\u1eabn \u0111i\u1ec7n trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t ho\u1eb7c do t\u00e1c \u0111\u1ed9ng ho\u1eb7c \u1ee9ng su\u1ea5t b\u00ean ngo\u00e0i.<\/span><\/p>\n

Tr\u00ean th\u1ef1c t\u1ebf, m\u1ed9t khi s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t, r\u1ea5t kh\u00f3 \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c bi\u1ec7n ph\u00e1p \u0111\u1ed1i v\u1edbi hi\u1ec7n t\u01b0\u1ee3ng ng\u1eafn m\u1ea1ch b\u00ean trong trong c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n, bao g\u1ed3m c\u1ea3 m\u1ea1ch s\u1ea1c v\u00e0 x\u1ea3 pin. Khi x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng ng\u1eafn m\u1ea1ch b\u00ean trong, m\u1ed9t d\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch l\u1edbn s\u1ebd \u0111\u01b0\u1ee3c t\u1ea1o ra b\u00ean trong pin, t\u1eeb \u0111\u00f3 t\u1ea1o ra nhi\u1ec7t Joule. Nhi\u1ec7t n\u00e0y g\u00e2y ra ph\u1ea3n \u1ee9ng c\u1ee7a c\u00e1c ch\u1ea5t \u0111i\u1ec7n ph\u00e2n h\u1eefu c\u01a1 d\u1ec5 ch\u00e1y, t\u1ea1o ra kh\u00ed nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 l\u00e0m t\u0103ng kh\u1ea3 n\u0103ng m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t. Khi hi\u1ec7n t\u01b0\u1ee3ng m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t x\u1ea3y ra, c\u00f3 th\u1ec3 x\u1ea3y ra kh\u00f3i v\u00e0 l\u1eeda, v\u00e0 trong tr\u01b0\u1eddng h\u1ee3p nghi\u00eam tr\u1ecdng, pin c\u00f3 th\u1ec3 b\u1ecb v\u1ee1, g\u00e2y nguy hi\u1ec3m cho s\u1ef1 an to\u00e0n c\u00e1 nh\u00e2n c\u1ee7a ng\u01b0\u1eddi s\u1eed d\u1ee5ng.<\/span><\/p>\n

Theo quan \u0111i\u1ec3m c\u1ee7a ng\u01b0\u1eddi d\u00f9ng, vi\u1ec7c \u0111\u1ea3m b\u1ea3o an to\u00e0n cho pin l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi \u1ee9ng d\u1ee5ng pin lithium-ion. Th\u1eed nghi\u1ec7m b\u1eb1ng kim bao g\u1ed3m vi\u1ec7c \u0111\u00f3ng \u0111inh th\u00e9p v\u00e0o pin, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng t\u1ea1o ra m\u1ed9t m\u1ea1ch ng\u1eafn b\u00ean trong gi\u1eefa c\u00e1c \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng v\u00e0 \u00e2m. Tuy nhi\u00ean, khi \u0111inh \u0111\u01b0\u1ee3c \u0111\u00f3ng v\u00e0o pin \u0111\u1ec3 t\u1ea1o th\u00e0nh m\u1ed9t l\u1ed7 tr\u00ean b\u1ec1 m\u1eb7t pin, l\u1ed7 n\u00e0y s\u1ebd gi\u1ea3i ph\u00f3ng kh\u00ed nhi\u1ec7t \u0111\u1ed9 cao, g\u00e2y ra s\u1ef1 thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i t\u1ea3n nhi\u1ec7t b\u00ean trong c\u1ee7a pin, c\u00f3 th\u1ec3 kh\u00e1c v\u1edbi t\u00ecnh hu\u1ed1ng ng\u1eafn m\u1ea1ch b\u00ean trong th\u1ef1c t\u1ebf.<\/span><\/p>\n

Th\u1eed nghi\u1ec7m \u0111\u00e2m xuy\u00ean g\u00f3c t\u00f9<\/span><\/strong><\/span><\/h1>\n

Th\u1eed nghi\u1ec7m ng\u1eafn m\u1ea1ch b\u00ean trong b\u1eaft bu\u1ed9c s\u1eed d\u1ee5ng m\u1ed9t ch\u1ed1t h\u00ecnh c\u1ea7u \u1edf tr\u00ean c\u00f9ng, \u0111\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra c\u00f3 th\u1ec3 t\u1ea1o ra m\u1ed9t m\u1ea1ch ng\u1eafn b\u00ean trong (ng\u1eafn m\u1ea1ch nh\u1ecf) m\u00e0 kh\u00f4ng g\u00e2y th\u1ee7ng tr\u00ean b\u1ec1 m\u1eb7t pin, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 Th\u1eed nghi\u1ec7m \u0111inh c\u00f9n. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y t\u1ea1o ra m\u1ed9t m\u1ea1ch ng\u1eafn gi\u1eefa c\u00e1c v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c (t\u1ea5m \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng v\u00e0 \u00e2m) c\u1ee7a pin th\u00f4ng qua \u00e1p l\u1ef1c c\u1ee7a \u0111inh, d\u1eabn \u0111\u1ebfn ch\u1ec9 bi\u1ebfn d\u1ea1ng nh\u1eb9 c\u1ee7a pin \u0111\u01b0\u1ee3c ki\u1ec3m tra. So v\u1edbi th\u1eed nghi\u1ec7m xuy\u00ean \u0111inh th\u00f4ng th\u01b0\u1eddng, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u00f3 th\u1ec3 t\u1ea1o ra tr\u1ea1ng th\u00e1i g\u1ea7n v\u1edbi m\u1ea1ch ng\u1eafn b\u00ean trong th\u1ef1c t\u1ebf h\u01a1n.<\/span><\/p>\n

Chu\u1ea9n b\u1ecb bu\u1ed3ng th\u1eed nghi\u1ec7m<\/span><\/strong><\/span><\/h1>\n

\u0110\u1ec3 ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m n\u00e0y, vi\u1ec7c \u0111\u00f3ng \u0111inh th\u1ee7 c\u00f4ng v\u00e0o pin lithium-ion ch\u1eafc ch\u1eafn l\u00e0 kh\u00f4ng kh\u1ea3 thi. \u0110\u1eebng th\u1eed d\u1ec5 d\u00e0ng – \u0111inh c\u00f3 th\u1ec3 b\u1eafn ra ngo\u00e0i, g\u00e2y th\u01b0\u01a1ng t\u00edch cho tay v\u00e0 c\u01a1 th\u1ec3. Do \u0111\u00f3, ch\u00fang ta c\u1ea7n s\u1eed d\u1ee5ng m\u00e1y th\u1eed kim. <\/span>Bu\u1ed3ng th\u1eed \u0111\u1ed9 xuy\u00ean \u0111inh<\/span><\/a> DGBELL \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf \u0111\u00e2y (v\u1edbi \u00e1p su\u1ea5t t\u1ed1i \u0111a l\u00e0 20 k N v\u00e0 h\u00e0nh tr\u00ecnh 200 mm) \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o \u0111\u1ec3 c\u00f3 th\u1ec3 l\u1eafp \u0111inh th\u00e9p c\u00f3 hai \u0111\u01b0\u1eddng k\u00ednh kh\u00e1c nhau (\u03c6 3 mm \u03c6 5 mm, 100 mm)<\/span><\/p>\n

C\u00e1c bi\u1ec7n ph\u00e1p an ninh<\/span><\/strong><\/span><\/h1>\n

V\u00ec l\u00fd do an to\u00e0n, m\u00e1y th\u1eed nghi\u1ec7m c\u00f3 ch\u1ee9c n\u0103ng ch\u1ed1ng ch\u00e1y n\u1ed5 \u0111\u1ec3 ng\u0103n ng\u1eeba ch\u00e1y n\u1ed5 pin g\u00e2y nguy hi\u1ec3m cho s\u1ef1 an to\u00e0n c\u1ee7a nh\u00e2n vi\u00ean th\u1eed nghi\u1ec7m. Do c\u00e2n nh\u1eafc v\u1ec1 gi\u00e1 c\u1ea3, m\u00e1y th\u1eed nghi\u1ec7m c\u00f3 c\u00e1c t\u00f9y ch\u1ecdn cho \u0111\u1ed9ng c\u01a1 th\u1ee7y l\u1ef1c v\u00e0 \u0111\u1ed9ng c\u01a1 servo m\u00e1y t\u00ednh. \u0110\u1ed9ng c\u01a1 th\u1ee7y l\u1ef1c d\u1ec5 v\u1eadn h\u00e0nh, trong khi \u0111\u1ed9ng c\u01a1 servo c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp v\u1edbi c\u00e1c \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m chi ti\u1ebft h\u01a1n, mang l\u1ea1i \u0111\u1ed9 ch\u00ednh x\u00e1c cao h\u01a1n. \u0110\u01b0\u1ee3c trang b\u1ecb h\u1ec7 th\u1ed1ng thu th\u1eadp nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111i\u1ec7n \u00e1p, d\u1eef li\u1ec7u nhi\u1ec7t \u0111\u1ed9 pin \u0111\u01b0\u1ee3c thu th\u1eadp th\u00f4ng qua c\u1eb7p nhi\u1ec7t \u0111i\u1ec7n lo\u1ea1i K, c\u1eafm v\u00e0 ch\u1ea1y, v\u1edbi ph\u1ea1m vi \u0111o t\u1eeb 0-600 \u2103. Ph\u1ea1m vi thu th\u1eadp \u0111i\u1ec7n \u00e1p l\u00e0 0-50 V. H\u1ed9p th\u1eed nghi\u1ec7m \u0111\u01b0\u1ee3c trang b\u1ecb c\u00e1c \u0111\u1ed3 g\u00e1 c\u00f3 th\u1ec3 c\u1ed1 \u0111\u1ecbnh pin v\u00e0 kim th\u00e9p c\u00f3 k\u00edch th\u01b0\u1edbc kh\u00e1c nhau. T\u1ed1c \u0111\u1ed9 ch\u00e8n c\u1ee7a \u0111inh c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh t\u1eeb 0,1 \u0111\u1ebfn 80 mm\/gi\u00e2y.<\/span><\/p>\n

C\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba li\u00ean quan<\/span><\/strong><\/span><\/h1>\n

\u1ede \u0111\u00e2y, ch\u00fang t\u00f4i th\u1eed nghi\u1ec7m ba lo\u1ea1i pin x\u1ebfp ch\u1ed3ng kh\u00e1c nhau (300 m Ah, 1000 m Ah, 2000 m Ah). D\u1eef li\u1ec7u c\u1ea7n \u0111o nh\u01b0 sau:<\/span><\/p>\n

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  • S\u1ef1 thay \u0111\u1ed5i \u0111i\u1ec7n \u00e1p c\u1ef1c c\u1ee7a pin theo th\u1eddi gian<\/span><\/li>\n
  • Nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t pin<\/span><\/li>\n
  • Nh\u1eefng thay \u0111\u1ed5i v\u1ec1 h\u00ecnh d\u1ea1ng v\u00e0 v\u1ebb ngo\u00e0i c\u1ee7a pin sau khi b\u1ecb \u0111inh \u0111\u00e2m v\u00e0o<\/span><\/li>\n<\/ul>\n

    Tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh th\u00ed nghi\u1ec7m, c\u1ea7n chu\u1ea9n b\u1ecb k\u1ef9 c\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng ch\u00e1y ch\u1eefa ch\u00e1y, an to\u00e0n nh\u01b0: ph\u00f2ng ng\u1eeba b\u1eafn t\u00f3e, ch\u1eeba \u0111\u1ee7 kh\u00f4ng gian b\u1ea3o d\u01b0\u1ee1ng cho m\u00e1y th\u1eed nghi\u1ec7m, \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng.<\/span><\/p>\n

    S\u1ef1 kh\u00e1c bi\u1ec7t do t\u00ecnh tr\u1ea1ng \u0111\u00e2m xuy\u00ean \u0111inh<\/span><\/strong><\/span><\/h1>\n

    D\u1ef1a tr\u00ean m\u1ed9t s\u1ed1 k\u1ebft qu\u1ea3 th\u1ef1c nghi\u1ec7m, bao g\u1ed3m c\u00e1c k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m \u1edf tr\u00ean, c\u00f3 th\u1ec3 suy ra nh\u1eefng s\u1ef1 ki\u1ec7n sau \u0111\u00e2y.<\/span><\/p>\n

    (1) T\u1ea1i \u0111i\u1ec3m \u0111\u00e2m th\u1ee7ng, \u0111i\u1ec7n \u00e1p \u0111\u1ea7u c\u1ef1c gi\u1ea3m \u0111\u00e1ng k\u1ec3 v\u00e0 gi\u1ea3m d\u1ea7n xu\u1ed1ng 0 V. Khi \u0111i\u1ec7n \u00e1p gi\u1ea3m \u0111\u1ebfn m\u1ed9t m\u1ee9c \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh, s\u1ebd c\u00f3 s\u1ef1 dao \u0111\u1ed9ng \u0111\u00e1ng k\u1ec3 trong \u0111\u01b0\u1eddng cong \u0111i\u1ec7n \u00e1p.<\/span><\/p>\n

    (2) \u1ede giai \u0111o\u1ea1n \u0111i\u1ec7n \u00e1p thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 t\u1eeb \u0111i\u1ec3m kim \u0111\u1ebfn c\u1ef1c, k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m c\u1ee7a c\u00e1c lo\u1ea1i pin v\u00e0 \u0111i\u1ec1u ki\u1ec7n kim kh\u00e1c nhau c\u0169ng kh\u00e1c nhau, nh\u01b0ng \u0111i\u1ec7n \u00e1p c\u1ef1c s\u1ebd gi\u1ea3m xu\u1ed1ng 0 V sau 10-20 gi\u00e2y.<\/span><\/p>\n

    (3) Khi th\u1eed nghi\u1ec7m c\u00e1c lo\u1ea1i pin c\u00f3 c\u00f9ng dung l\u01b0\u1ee3ng, \u0111inh c\u00e0ng d\u00e0y th\u00ec s\u1ef1 thay \u0111\u1ed5i \u0111i\u1ec7n \u00e1p c\u1ef1c c\u00e0ng l\u1edbn.<\/span><\/p>\n

    <\/p>\n

    \u0110o nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t pin<\/span><\/strong><\/span><\/h1>\n

    Sau khi \u0111inh xuy\u00ean qua, nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t c\u1ee7a pin x\u1ebfp ch\u1ed3ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thu th\u1eadp theo th\u1eddi gian th\u00f4ng qua h\u1ec7 th\u1ed1ng thu th\u1eadp nhi\u1ec7t \u0111\u1ed9. S\u1eed d\u1ee5ng \u03c6 S\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t \u0111\u01b0\u1ee3c \u0111o trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m \u0111\u00e2m th\u1ee7ng pin x\u1ebfp ch\u1ed3ng 2000 m Ah b\u1eb1ng \u0111inh th\u00e9p 5 mm.<\/span><\/p>\n

    Nhi\u1ec7t \u0111\u1ed9 t\u0103ng sau khi \u0111\u00e2m \u0111inh<\/span><\/strong><\/span><\/h1>\n

    Trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m \u0111\u00e2m th\u1ee7ng m\u1ed9t \u1eafc quy x\u1ebfp ch\u1ed3ng 2000 m Ah b\u1eb1ng \u0111inh th\u00e9p 5 mm, \u0111\u00e3 x\u1ea3y ra t\u00ecnh hu\u1ed1ng ch\u00e1y k\u00e8m theo v\u00e0 nhi\u1ec7t \u0111\u1ed9 v\u01b0\u1ee3t qu\u00e1 200 \u2103. Ngo\u00e0i ra, trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m c\u00e1c m\u1eabu \u1eafc quy 1000 m Ah \u03c6 M\u1ed9t \u0111\u00e1m ch\u00e1y \u0111\u00e3 b\u00f9ng ph\u00e1t khi m\u1ed9t \u0111inh th\u00e9p 3 mm b\u1ecb \u0111\u00e2m th\u1ee7ng. S\u1eed d\u1ee5ng \u03c6 Trong th\u1eed nghi\u1ec7m \u0111\u00e2m th\u1ee7ng \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh b\u1eb1ng \u0111inh th\u00e9p 5 mm, kh\u00f4ng ch\u1ec9 x\u1ea3y ra ch\u00e1y m\u00e0 nhi\u1ec7t \u0111\u1ed9 \u1eafc quy c\u0169ng t\u0103ng \u0111\u00e1ng k\u1ec3. Ngo\u00e0i ra, ch\u00fang t\u00f4i \u0111\u00e3 th\u1eed nghi\u1ec7m nhi\u1ec1u m\u1eabu \u1eafc quy b\u1eb1ng \u0111inh th\u00e9p c\u00f3 \u0111\u01b0\u1eddng k\u00ednh kh\u00e1c nhau v\u00e0 xu h\u01b0\u1edbng t\u0103ng nhi\u1ec7t \u0111\u1ed9 theo th\u1eddi gian t\u01b0\u01a1ng t\u1ef1 nh\u01b0 h\u00ecnh tr\u00ean. H\u01a1n n\u1eefa, nhi\u1ec7t \u0111\u1ed9 cao nh\u1ea5t \u0111o \u0111\u01b0\u1ee3c \u0111\u1ed1i v\u1edbi c\u00e1c \u00f4 \u1eafc quy kh\u00e1c nhau c\u0169ng c\u00f3 th\u1ec3 d\u01b0\u1edbi 100 \u2103.<\/span><\/p>\n

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

    B\u00e0i th\u1eed nghi\u1ec7m n\u00e0y, b\u1eb1ng c\u00e1ch l\u00e0m ng\u1eafn m\u1ea1ch c\u00e1c \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng v\u00e0 \u00e2m, ngay l\u1eadp t\u1ee9c chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef b\u00ean trong pin th\u00e0nh n\u0103ng l\u01b0\u1ee3ng nhi\u1ec7t, t\u1ea1o ra \u0111\u1ee7 nhi\u1ec7t \u0111\u1ec3 khi\u1ebfn ch\u1ea5t \u0111i\u1ec7n ph\u00e2n ch\u00e1y v\u00e0 ph\u00e1t n\u1ed5. Theo quan \u0111i\u1ec3m n\u0103ng l\u01b0\u1ee3ng, nhi\u1ec7t sinh ra khi \u0111\u1ed1t ch\u00e1y x\u0103ng g\u1ea7n nh\u01b0 gi\u1ed1ng nhau. \u0110\u00e2y l\u00e0 m\u1ed9t b\u00e0i th\u1eed nguy hi\u1ec3m! T\u00f4i tin r\u1eb1ng b\u1ea1n \u0111\u00e3 c\u00f3 m\u1ed9t s\u1ed1 hi\u1ec3u bi\u1ebft, \u0111\u1eebng d\u1ec5 d\u00e0ng th\u1ef1c hi\u1ec7n b\u00e0i th\u1eed n\u00e0y. Tuy nhi\u00ean, nh\u01b0 m\u1ed9t \u0111\u00e1nh gi\u00e1 an to\u00e0n \u0111\u1ec3 thi\u1ebft k\u1ebf v\u00e0 s\u1ea3n xu\u1ea5t pin, th\u1eed nghi\u1ec7m \u0111\u00e2m \u0111inh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n m\u00e0 kh\u00f4ng c\u1ea7n d\u1ef1a v\u00e0o m\u1ed9t l\u01b0\u1ee3ng l\u1edbn ti\u1ec1n t\u00e0i tr\u1ee3 v\u00e0 k\u1ebft qu\u1ea3 \u0111o l\u01b0\u1eddng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u1ea3n \u00e1nh trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t. Cu\u1ed1i c\u00f9ng, pin lithium-ion an to\u00e0n khi s\u1eed d\u1ee5ng trong ph\u1ea1m vi \u0111\u1ecbnh m\u1ee9c do nh\u00e0 s\u1ea3n xu\u1ea5t ch\u1ec9 \u0111\u1ecbnh. V\u01b0\u1ee3t qu\u00e1 ph\u1ea1m vi \u0111\u1ecbnh m\u1ee9c, ch\u1eb3ng h\u1ea1n nh\u01b0 s\u1ea1c qu\u00e1 m\u1ee9c ho\u1eb7c x\u1ea3 qu\u00e1 m\u1ee9c nhi\u1ec1u l\u1ea7n, c\u00f3 th\u1ec3 khi\u1ebfn pin b\u1eaft l\u1eeda ho\u1eb7c b\u1ecb h\u1ecfng.<\/span><\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

    \u00dd ngh\u0129a c\u1ee7a vi\u1ec7c th\u1eed nghi\u1ec7m \u0111\u00e2m xuy\u00ean Th\u1eed nghi\u1ec7m xuy\u00ean \u0111inh l\u00e0 ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m ng\u1eafn m\u1ea1ch b\u00ean trong \u0111\u1ec3 th\u1eed nghi\u1ec7m \u0111\u1ed9 an to\u00e0n c\u1ee7a pin lithium-ion \u0111\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c ng\u1eafn m\u1ea1ch b\u00ean trong. S\u1eed d\u1ee5ng \u0111inh th\u00e9p \u0111\u1ec3 xuy\u00ean qua pin, m\u00f4 ph\u1ecfng ng\u1eafn m\u1ea1ch b\u00ean trong v\u00e0 ti\u1ebfn h\u00e0nh th\u1eed<\/p>\n","protected":false},"author":1,"featured_media":19588,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[],"class_list":["post-19587","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\/19587","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=19587"}],"version-history":[{"count":3,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19587\/revisions"}],"predecessor-version":[{"id":21910,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19587\/revisions\/21910"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media\/19588"}],"wp:attachment":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=19587"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=19587"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=19587"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}