{"id":19904,"date":"2022-01-06T01:56:57","date_gmt":"2022-01-06T01:56:57","guid":{"rendered":"http:\/\/dgbellvietnam.com\/partial-testing-on-the-safety-of-lithium-battery-part-1\/"},"modified":"2024-10-25T15:36:21","modified_gmt":"2024-10-25T08:36:21","slug":"partial-testing-on-the-safety-of-lithium-battery-part-1","status":"publish","type":"post","link":"https:\/\/dgbellvietnam.com\/en\/partial-testing-on-the-safety-of-lithium-battery-part-1\/","title":{"rendered":"Th\u1eed nghi\u1ec7m th\u00e0nh ph\u1ea7n v\u1ec1 \u0111\u1ed9 an to\u00e0n c\u1ee7a pin lithium-Ph\u1ea7n 1"},"content":{"rendered":"
\n

K\u1ec3 t\u1eeb khi s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t pin lithium, n\u00f3 \u0111\u00e3 nhanh ch\u00f3ng d\u1eabn \u0111\u1ea7u xu h\u01b0\u1edbng trong l\u0129nh v\u1ef1c pin v\u1edbi hi\u1ec7u su\u1ea5t tuy\u1ec7t v\u1eddi nh\u01b0 t\u1ef7 l\u1ec7 n\u0103ng l\u01b0\u1ee3ng cao, tu\u1ed5i th\u1ecd chu k\u1ef3 d\u00e0i v\u00e0 \u0111i\u1ec7n \u00e1p \u0111i\u1ec7n c\u1ef1c cao. N\u00f3 c\u00f3 l\u1ee3i th\u1ebf tuy\u1ec7t \u0111\u1ed1i trong \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng, m\u00e1y t\u00ednh v\u00e0 c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c, v\u00e0 \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t trong nh\u1eefng ch\u1ee7 \u0111\u1ec1 nghi\u00ean c\u1ee9u quan tr\u1ecdng c\u1ee7a xe n\u0103ng l\u01b0\u1ee3ng m\u1edbi. \u0110\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u c\u1ee7a th\u1ecb tr\u01b0\u1eddng v\u1ec1 n\u0103ng l\u01b0\u1ee3ng l\u01b0u tr\u1eef cao, c\u00e1c doanh nghi\u1ec7p t\u0103ng c\u01b0\u1eddng nghi\u00ean c\u1ee9u v\u00e0 ph\u00e1t tri\u1ec3n n\u0103ng l\u01b0\u1ee3ng c\u1ee5 th\u1ec3 c\u1ee7a m\u1ed9t lo\u1ea1i pin duy nh\u1ea5t. M\u1eb7c d\u00f9 n\u00f3 c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n th\u1eddi gian ch\u1edd c\u1ee7a \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng, nh\u01b0ng n\u00f3 c\u0169ng l\u00e0m cho m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng th\u1ec3 t\u00edch c\u1ee7a m\u1ed9t lo\u1ea1i pin duy nh\u1ea5t ng\u00e0y c\u00e0ng cao v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 b\u1ea3o m\u1eadt c\u1ee7a n\u00f3 ng\u00e0y c\u00e0ng tr\u1edf n\u00ean n\u1ed5i b\u1eadt. Y\u1ebfu t\u1ed1 h\u1ea1n ch\u1ebf ch\u00ednh \u0111\u1ed1i v\u1edbi vi\u1ec7c th\u00fac \u0111\u1ea9y th\u01b0\u01a1ng m\u1ea1i pin lithium-ion v\u00e0 dung l\u01b0\u1ee3ng cao l\u00e0 t\u00ednh an to\u00e0n v\u00e0 c\u00f3 nhi\u1ec1u m\u1ed1i nguy hi\u1ec3m ti\u1ec1m \u1ea9n v\u1ec1 an to\u00e0n. \u0110\u1ec3 ph\u00e2n t\u00edch v\u00e0 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 v\u1eady, m\u1ed9t s\u1ed1 ti\u00eau chu\u1ea9n an to\u00e0n qu\u1ed1c t\u1ebf \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t, ch\u1eb3ng h\u1ea1n nh\u01b0 <\/span><\/span>IEC62133<\/span><\/span><\/a> , <\/span><\/span>UL1642<\/span><\/span><\/a> , IEEE1625, v.v.; Ti\u00eau chu\u1ea9n \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb GB \/ T18287-2000 c\u0169ng \u0111\u00e3 \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u t\u1ea1i Trung Qu\u1ed1c. \u0110\u1ed3ng th\u1eddi, \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n cho pin lithium trong h\u00e0ng kh\u00f4ng, v\u1eadn t\u1ea3i \u0111\u01b0\u1eddng d\u00e0i v\u00e0 s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb, c\u00e1c ti\u00eau chu\u1ea9n <\/span><\/span>UN38.3<\/span><\/span><\/a> , GB4943, v.v. \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u01b0a ra. Tuy nhi\u00ean, trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, v\u1edbi vi\u1ec7c s\u1eed d\u1ee5ng quy m\u00f4 l\u1edbn c\u1ee7a th\u1ecb tr\u01b0\u1eddng v\u00e0 s\u1ef1 gia t\u0103ng dung l\u01b0\u1ee3ng ri\u00eang c\u1ee7a pin, kh\u1ea3 n\u0103ng x\u1ea3y ra c\u00e1c v\u1ea5n \u0111\u1ec1 nghi\u00eam tr\u1ecdng nh\u01b0 ch\u00e1y n\u1ed5 pin lithium trong \u0111i\u1ec1u ki\u1ec7n l\u1ea1m d\u1ee5ng (nh\u01b0 qu\u00e1 t\u1ea3i nhi\u1ec7t v\u00e0 qu\u00e1 t\u1ea3i x\u1ea3, ng\u1eafn m\u1ea1ch, rung \u0111\u1ed9ng, \u0111\u00f9n, v.v.) \u0111\u00e3 t\u0103ng l\u00ean r\u1ea5t nhi\u1ec1u. C\u00e1c v\u1ee5 n\u1ed5 g\u00e2y th\u01b0\u01a1ng t\u00edch ho\u1eb7c thu h\u1ed3i s\u1ea3n ph\u1ea9m do nguy c\u01a1 an to\u00e0n th\u01b0\u1eddng g\u00e2y ra h\u1eadu qu\u1ea3 t\u1eed vong cho doanh nghi\u1ec7p. Nhi\u1ec1u c\u00f4ng ty \u0111ang \u0111\u1ea7u t\u01b0 v\u00e0o vi\u1ec7c ph\u00e1t tri\u1ec3n c\u00e1c c\u00f4ng ngh\u1ec7 ph\u00f2ng ng\u1eeba an to\u00e0n pin lithium m\u1edbi, \u0111\u1ed3ng th\u1eddi m\u00f4 ph\u1ecfng c\u00e1c v\u1ea5n \u0111\u1ec1 c\u00f3 th\u1ec3 x\u1ea3y ra \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u00e1t hi\u1ec7n ph\u00f9 h\u1ee3p h\u01a1n, ch\u1eb3ng h\u1ea1n nh\u01b0 th\u1eed nghi\u1ec7m ng\u1eafn m\u1ea1ch b\u00ean trong b\u1eaft bu\u1ed9c JISC8714 c\u1ee7a Nh\u1eadt B\u1ea3n, th\u1eed nghi\u1ec7m nhi\u1ec7t \u0111\u1ed9 gi\u1edbi h\u1ea1n tr\u00ean v\u00e0 d\u01b0\u1edbi IEC, ph\u01b0\u01a1ng ti\u1ec7n th\u1eed nghi\u1ec7m ch\u00e2m c\u1ee9u. \u0110\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u th\u1ecb tr\u01b0\u1eddng, c\u00e1c ti\u00eau chu\u1ea9n an to\u00e0n hi\u1ec7n c\u00f3 c\u0169ng \u0111\u00e3 \u0111\u01b0\u1ee3c n\u00e2ng c\u1ea5p t\u1ea1i Trung Qu\u1ed1c v\u00e0 \u0111\u01b0\u1ee3c s\u1eeda \u0111\u1ed5i th\u00e0nh GB \/ T18287-2013, GB31241-2014; B\u00e0i vi\u1ebft n\u00e0y s\u1ebd t\u00f3m t\u1eaft m\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p ph\u00e1t hi\u1ec7n hi\u1ec7n nay.<\/span><\/span><\/p>\n

Th\u1eed nghi\u1ec7m \u0111\u1ed9 \u0111\u00e2m xuy\u00ean<\/span><\/span><\/a><\/span><\/h1>\n

Th\u1eed nghi\u1ec7m ch\u00e2m kim l\u00e0 m\u1ed9t m\u1ea1ch ng\u1eafn b\u00ean trong c\u01b0\u1ee1ng b\u1ee9c. D\u01b0\u1edbi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng 20 \u2103 \u00b1 5 \u2103, pin \u0111\u01b0\u1ee3c s\u1ea1c \u0111\u1ea7y b\u1eb1ng d\u00f2ng \u0111i\u1ec7n s\u1ea1c ti\u00eau chu\u1ea9n, m\u1ed9t c\u1eb7p nhi\u1ec7t \u0111i\u1ec7n \u0111\u01b0\u1ee3c d\u00e1n g\u1ea7n t\u00e2m pin v\u00e0 \u0111\u1eb7t trong t\u1ee7 h\u00fat, v\u00e0 m\u1ed9t kim th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u01b0\u1eddng k\u00ednh 3 mm \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u00e2m th\u1ee7ng pin nhanh ch\u00f3ng v\u1edbi t\u1ed1c \u0111\u1ed9 20 mm \/ s. Kim c\u1ea7n xuy\u00ean ho\u00e0n to\u00e0n sang ph\u00eda b\u00ean kia c\u1ee7a pin, sau \u0111\u00f3 kim th\u00e9p v\u1eabn \u0111\u1ee9ng y\u00ean trong 1 ph\u00fat. Quan s\u00e1t xem pin c\u00f3 ch\u00e1y n\u1ed5 kh\u00f4ng v\u00e0 \u0111\u1ed3ng th\u1eddi ph\u00e1t hi\u1ec7n d\u1eef li\u1ec7u thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 pin. Ti\u00eau chu\u1ea9n v\u01b0\u1ee3t qua c\u1ee7a th\u00ed nghi\u1ec7m l\u00e0 pin kh\u00f4ng ch\u00e1y v\u00e0 kh\u00f4ng n\u1ed5. V\u00ec lo\u1ea1i th\u1eed nghi\u1ec7m n\u00e0y kh\u00f4ng d\u1ec5 v\u01b0\u1ee3t qua n\u00ean c\u00f3 tranh ch\u1ea5p v\u1ec1 v\u1ea5n \u0111\u1ec1 m\u00f4 ph\u1ecfng t\u00ecnh hu\u1ed1ng v\u00e0 th\u1eed nghi\u1ec7m kh\u00f4ng \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea trong ti\u00eau chu\u1ea9n qu\u1ed1c gia GB \/ T18287. QC\/T743-2006 c\u00f3 th\u1eed nghi\u1ec7m kim: s\u1eed d\u1ee5ng kim th\u00e9p ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao \u00f8 3mm ~ \u00f8 8mm \u0111\u00e2m xuy\u00ean theo h\u01b0\u1edbng vu\u00f4ng g\u00f3c v\u1edbi t\u1ea5m pin (kim th\u00e9p n\u1eb1m trong pin). Pin kh\u00f4ng n\u1ed5 ho\u1eb7c b\u1eaft l\u1eeda.<\/span><\/span><\/p>\n

Th\u1eed nghi\u1ec7m \u0111\u00e2m \u0111inh m\u00f4 ph\u1ecfng v\u1ea5n \u0111\u1ec1 an to\u00e0n sau khi v\u1eadt l\u1ea1, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u1eadt s\u1eafc nh\u1ecdn b\u1eb1ng kim lo\u1ea1i \u0111\u00e2m v\u00e0o b\u1ec1 m\u1eb7t pin. L\u00fac n\u00e0y, m\u00e0ng c\u00e1ch \u0111i\u1ec7n c\u1ee7a pin b\u1ecb \u0111\u00e2m th\u1ee7ng, \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng v\u00e0 \u0111i\u1ec7n c\u1ef1c \u00e2m trong pin b\u1ecb \u0111o\u1ea3n m\u1ea1ch ngay l\u1eadp t\u1ee9c. D\u00f2ng \u0111i\u1ec7n \u0111o\u1ea3n m\u1ea1ch c\u00f3 th\u1ec3 sinh ra r\u1ea5t nhi\u1ec1u nhi\u1ec7t ngay l\u1eadp t\u1ee9c. Ch\u00e2m c\u1ee9u khi\u1ebfn pin b\u1ecb \u0111o\u1ea3n m\u1ea1ch t\u1ea1i \u0111i\u1ec3m ch\u00e2m c\u1ee9u. B\u1ea3n th\u00e2n kim th\u00e9p tr\u1edf th\u00e0nh \u0111i\u1ec3m \u0111o\u1ea3n m\u1ea1ch v\u00e0 sinh ra m\u1ed9t l\u01b0\u1ee3ng nhi\u1ec7t l\u1edbn \u0111\u1ec3 h\u00ecnh th\u00e0nh v\u00f9ng qu\u00e1 nhi\u1ec7t c\u1ee5c b\u1ed9 d\u1ecdc theo pin xung quanh kim th\u00e9p. \u0110\u1eb7t \u0111i\u1ec7n tr\u1edf DC c\u1ee7a pin l\u00e0 R, \u0111i\u1ec7n tr\u1edf \u0111o\u1ea3n m\u1ea1ch c\u1ee7a v\u00f9ng \u0111o\u1ea3n m\u1ea1ch l\u00e0 r, \u0111i\u1ec7n \u00e1p pin l\u00e0 U v\u00e0 c\u00f4ng su\u1ea5t sinh nhi\u1ec7t trong v\u00f9ng m\u1ea1ch Q: Q = U\u00b2r \/ (R + r)\u00b2. Khi nhi\u1ec7t \u0111\u1ed9 trong v\u00f9ng qu\u00e1 nhi\u1ec7t c\u1ee5c b\u1ed9 v\u01b0\u1ee3t qu\u00e1 \u0111i\u1ec3m t\u1edbi h\u1ea1n, s\u1ebd d\u1eabn \u0111\u1ebfn t\u00ecnh tr\u1ea1ng qu\u00e1 nhi\u1ec7t kh\u00f4ng ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c. Hi\u1ec7n nay, ch\u1ea5t \u0111i\u1ec7n ph\u00e2n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t cho pin lithium-ion c\u00f4ng nghi\u1ec7p l\u00e0 dung m\u00f4i h\u1ed7n h\u1ee3p c\u1ee7a LiPF <\/span><\/span>6<\/span><\/span><\/sub> v\u00e0 alkyl cacbonat (bao g\u1ed3m ECPC, decemc, v.v.). \u0110i\u1ec3m ch\u1edbp ch\u00e1y c\u1ee7a c\u00e1c dung m\u00f4i th\u00f4ng d\u1ee5ng n\u00e0y nh\u01b0 sau: 160 \u2103 (EC) 132 \u2103 (PC) 31 \u2103 (DEC) 31C (DMC). \u0110\u1ed3ng th\u1eddi, ch\u1ea5t \u0111i\u1ec7n ph\u00e2n c\u0169ng s\u1ebd ph\u00e1t ra ph\u1ea3n \u1ee9ng ph\u00e2n h\u1ee7y. Ph\u1ea3n \u1ee9ng ph\u00e2n h\u1ee7y di\u1ec5n ra trong kho\u1ea3ng t\u1eeb 170 \u2103 \u0111\u1ebfn 330 \u2103, v\u00e0 nhi\u1ec7t gi\u1ea3i ph\u00f3ng kho\u1ea3ng 460 J \/ g, c\u00f3 li\u00ean quan \u0111\u1ebfn mu\u1ed1i lithium v\u00e0 dung m\u00f4i. Trong th\u00ed nghi\u1ec7m, nhi\u1ec7t \u0111\u1ed9 c\u1ee7a pin chung t\u0103ng m\u1ea1nh sau khi kim b\u1ecb \u0111o\u1ea3n m\u1ea1ch v\u00e0 c\u00f3 th\u1ec3 \u0111\u1ea1t kho\u1ea3ng 120 \u2103 trong v\u00e0i gi\u00e2y. Do alkyl cacbonat r\u1ea5t d\u1ec5 ch\u00e1y, khi v\u1ecf pin lithium-ion b\u1ecb th\u1ee7ng, dung m\u00f4i r\u00f2 r\u1ec9 v\u00e0 ti\u1ebfp x\u00fac v\u1edbi oxy trong kh\u00f4ng kh\u00ed, c\u00f3 th\u1ec3 \u0111\u1ed1t ch\u00e1y dung m\u00f4i h\u1eefu c\u01a1 \u1edf khu v\u1ef1c qu\u00e1 nhi\u1ec7t g\u1ea7n kim th\u00e9p, \u0111i\u1ec1u n\u00e0y s\u1ebd khi\u1ebfn pin b\u1eaft l\u1eeda ho\u1eb7c k\u00edch n\u1ed5 pin b\u00ean trong.<\/span><\/span><\/p>\n

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Pin Lithium \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh t\u1eeb nhi\u1ec1u \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng v\u00e0 \u00e2m \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i song song, nh\u01b0 th\u1ec3 hi\u1ec7n trong H\u00ecnh 1. \u0110\u1ea7u \u0111inh \u0111\u1ea7u ti\u00ean t\u1eeb t\u1eeb \u0111\u00e2m th\u1ee7ng m\u00e0ng c\u00e1ch ly d\u01b0\u01a1ng v\u00e0 \u00e2m c\u1ee7a l\u1edbp \u0111\u1ea7u ti\u00ean, l\u00fac n\u00e0y, d\u00f2ng \u0111i\u1ec7n x\u1ea3 c\u1ee7a l\u1edbp \u0111i\u1ec7n c\u1ef1c song song \u0111\u1ea7u ti\u00ean r\u1ea5t l\u1edbn, v\u00e0 c\u00e1c \u0111i\u1ec7n c\u1ef1c c\u00f2n l\u1ea1i kh\u00f4ng b\u1ecb \u0111o\u1ea3n m\u1ea1ch \u0111\u01b0\u1ee3c x\u1ea3 v\u00e0 l\u00e0m n\u00f3ng qua \u0111i\u1ec3m ng\u1eafn m\u1ea1ch \u0111\u1ea7u ti\u00ean; Ti\u1ebfp t\u1ee5c xuy\u00ean qua m\u00e0ng c\u00e1ch ly m\u1ea3nh \u0111i\u1ec7n c\u1ef1c th\u1ee9 hai v\u00e0 c\u00e1c \u0111i\u1ec7n c\u1ef1c c\u00f2n l\u1ea1i ch\u01b0a b\u1ecb \u0111o\u1ea3n m\u1ea1ch \u0111\u01b0\u1ee3c gi\u1ea3m nh\u1eb9 b\u1edfi d\u00f2ng \u0111i\u1ec7n x\u1ea3 t\u1ea1i hai \u0111i\u1ec3m ng\u1eafn m\u1ea1ch hi\u1ec7n t\u1ea1i; Ti\u1ebfp t\u1ee5c \u0111\u00e2m th\u1ee7ng, d\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch ti\u1ebfp t\u1ee5c gi\u1ea3m tu\u1ea7n t\u1ef1 cho \u0111\u1ebfn khi xuy\u00ean qua ho\u00e0n to\u00e0n m\u00e0ng c\u00e1ch ly c\u1ee7a mi\u1ebfng \u0111i\u1ec7n c\u1ef1c song song c\u1ee7a pin. L\u00fac n\u00e0y, \u0111i\u1ec3m ng\u1eafn m\u1ea1ch x\u1ea3y ra gi\u1eefa t\u1ea5t c\u1ea3 c\u00e1c \u0111i\u1ec7n c\u1ef1c v\u00e0 hi\u1ec7n t\u01b0\u1ee3ng ng\u1eafn m\u1ea1ch ti\u1ebfp t\u1ee5c x\u1ea3y ra v\u1edbi d\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch t\u1ed1i thi\u1ec3u. N\u1ebfu t\u1ed1c \u0111\u1ed9 \u0111\u00e2m kim nhanh h\u01a1n, ch\u1eb3ng h\u1ea1n nh\u01b0 40mm\/gi\u00e2y, th\u00ec d\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch v\u1ec1 c\u01a1 b\u1ea3n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c coi l\u00e0 t\u1ea5t c\u1ea3 c\u00e1c mi\u1ebfng \u0111i\u1ec7n c\u1ef1c \u0111\u01b0\u1ee3c l\u00e0m n\u00f3ng d\u01b0\u1edbi c\u00f9ng m\u1ed9t d\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch; N\u1ebfu t\u1ed1c \u0111\u1ed9 ch\u1eadm, ch\u1eb3ng h\u1ea1n nh\u01b0 0,1mm\/gi\u00e2y, khi \u0111\u00e2m v\u00e0o ti\u1ec1n \u0111i\u1ec7n c\u1ef1c, d\u00f2ng \u0111i\u1ec7n ph\u00f3ng \u0111i\u1ec7n l\u1edbn, nhi\u1ec7t t\u1ee9c th\u1eddi nhi\u1ec1u h\u01a1n v\u00e0 nhi\u1ec7t \u0111\u1ed9 cao \u0111\u01b0\u1ee3c t\u1ea1o ra, c\u00f3 th\u1ec3 k\u00edch th\u00edch ph\u1ea3n \u1ee9ng ph\u00e2n h\u1ee7y c\u1ee7a ch\u1ea5t \u0111i\u1ec7n ph\u00e2n, khi\u1ebfn pin b\u1ecb ch\u00e1y. N\u1ebfu \u0111\u1ea7u kim v\u1eeba \u0111\u00e2m th\u1ee7ng b\u1ec1 m\u1eb7t pin trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m v\u00e0 d\u1eebng l\u1ea1i, th\u00ec d\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch l\u00fac n\u00e0y c\u1ef1c l\u1edbn v\u00e0 kh\u1ea3 n\u0103ng x\u1ea3y ra ch\u00e1y r\u1ea5t l\u1edbn. \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng l\u1eb7p l\u1ea1i v\u00e0 kh\u1ea3 n\u0103ng t\u00e1i t\u1ea1o c\u1ee7a th\u1eed nghi\u1ec7m, c\u1ea7n ph\u1ea3i ch\u1ec9 \u0111\u1ecbnh ch\u00ednh x\u00e1c thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng, x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1eddng k\u00ednh, \u0111\u1ed9 c\u1ee9ng, \u0111\u1ed9 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t, chi\u1ec1u d\u00e0i v\u00e0 \u0111\u1ed9 c\u00f4n c\u1ee7a \u0111\u1ea7u kim, x\u00e1c \u0111\u1ecbnh s\u1ed1 l\u1ea7n kim \u0111\u01b0\u1ee3c t\u00e1i s\u1eed d\u1ee5ng v\u00e0 c\u00e1c \u0111i\u1ec1u ki\u1ec7n x\u1eed l\u00fd; \u0110\u1ea3m b\u1ea3o \u0111\u00e2m xuy\u00ean pin v\u1edbi c\u00f9ng m\u1ed9t t\u1ed1c \u0111\u1ed9 t\u1ea1i m\u1ecdi th\u1eddi \u0111i\u1ec3m. \u0110\u1ed9 s\u00e2u \u0111\u00e2m xuy\u00ean c\u1ee7a pin c\u0169ng y\u00eau c\u1ea7u m\u1ed9t th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt th\u1ed1ng nh\u1ea5t.<\/span><\/span><\/p>\n

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K\u1ec3 t\u1eeb khi s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t pin lithium, n\u00f3 \u0111\u00e3 nhanh ch\u00f3ng d\u1eabn \u0111\u1ea7u xu h\u01b0\u1edbng trong l\u0129nh v\u1ef1c pin v\u1edbi hi\u1ec7u su\u1ea5t tuy\u1ec7t v\u1eddi nh\u01b0 t\u1ef7 l\u1ec7 n\u0103ng l\u01b0\u1ee3ng cao, tu\u1ed5i th\u1ecd chu k\u1ef3 d\u00e0i v\u00e0 \u0111i\u1ec7n \u00e1p \u0111i\u1ec7n c\u1ef1c cao. N\u00f3 c\u00f3 l\u1ee3i th\u1ebf tuy\u1ec7t \u0111\u1ed1i trong \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng, m\u00e1y<\/p>\n","protected":false},"author":1,"featured_media":19905,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[],"class_list":["post-19904","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\/19904","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=19904"}],"version-history":[{"count":3,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19904\/revisions"}],"predecessor-version":[{"id":22105,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19904\/revisions\/22105"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media\/19905"}],"wp:attachment":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=19904"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=19904"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=19904"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}