{"id":19797,"date":"2022-09-29T06:46:32","date_gmt":"2022-09-29T06:46:32","guid":{"rendered":"http:\/\/dgbellvietnam.com\/lithium-battery-safety-test\/"},"modified":"2024-10-24T16:39:05","modified_gmt":"2024-10-24T09:39:05","slug":"lithium-battery-safety-test","status":"publish","type":"post","link":"https:\/\/dgbellvietnam.com\/en\/lithium-battery-safety-test\/","title":{"rendered":"Th\u1eed nghi\u1ec7m an to\u00e0n pin Lithium"},"content":{"rendered":"
\n

Pin lithium ion c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m l\u00e0 n\u0103ng l\u01b0\u1ee3ng ri\u00eang cao, c\u00f4ng su\u1ea5t ri\u00eang cao, n\u1ec1n t\u1ea3ng \u0111i\u1ec7n \u00e1p cao, t\u1ef1 x\u1ea3 nh\u1ecf, tu\u1ed5i th\u1ecd chu k\u1ef3 d\u00e0i, \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng th\u1ea5p v\u00e0 kh\u00f4ng c\u00f3 hi\u1ec7u \u1ee9ng b\u1ed9 nh\u1edb. N\u00f3 \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng, m\u00e1y t\u00ednh, xe \u0111i\u1ec7n, qu\u00e2n s\u1ef1, c\u00f4ng ngh\u1ec7 v\u0169 tr\u1ee5 v\u00e0 c\u00e1c l\u0129nh v\u1ef1c li\u00ean quan kh\u00e1c. Tuy nhi\u00ean, pin lithium ion mang l\u1ea1i m\u1ed9t s\u1ed1 m\u1ed1i nguy hi\u1ec3m ti\u1ec1m \u1ea9n v\u1ec1 an to\u00e0n trong khi mang l\u1ea1i l\u1ee3i \u00edch cho nh\u00e2n lo\u1ea1i. V\u00ed d\u1ee5, pin lithium ion c\u00f3 th\u1ec3 g\u00e2y ch\u00e1y, n\u1ed5 v\u00e0 c\u00e1c m\u1ed1i nguy hi\u1ec3m kh\u00e1c trong \u0111i\u1ec1u ki\u1ec7n l\u1ea1m d\u1ee5ng (nh\u01b0 s\u1ea1c qu\u00e1 m\u1ee9c, x\u1ea3 qu\u00e1 m\u1ee9c, \u0111o\u1ea3n m\u1ea1ch, \u0111\u00f9n, ch\u00e2m c\u1ee9u, nhi\u1ec7t \u0111\u1ed9 cao, v.v.).<\/span><\/span><\/p>\n

Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, c\u00e1c v\u1ee5 tai n\u1ea1n li\u00ean quan \u0111\u1ebfn an to\u00e0n c\u1ee7a pin lithium ion li\u00ean t\u1ee5c x\u1ea3y ra, g\u00e2y ra m\u1ed1i \u0111e d\u1ecda l\u1edbn \u0111\u1ebfn an to\u00e0n c\u00e1 nh\u00e2n v\u00e0 t\u00e0i s\u1ea3n c\u1ee7a m\u1ecdi ng\u01b0\u1eddi. Hi\u1ec7u su\u1ea5t an to\u00e0n c\u1ee7a pin lithium v\u1eabn l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 c\u1ea5p b\u00e1ch c\u1ea7n \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft. Theo quan \u0111i\u1ec3m c\u1ee7a b\u1ea3n th\u00e2n pin lithium, b\u1ea3n th\u00e2n n\u00f3 l\u00e0 v\u1eadt mang n\u0103ng l\u01b0\u1ee3ng, c\u00f3 c\u00e1c y\u1ebfu t\u1ed1 kh\u00f4ng an to\u00e0n. C\u00e1c quy tr\u00ecnh s\u1ea3n xu\u1ea5t c\u00f4ng su\u1ea5t kh\u00e1c nhau v\u00e0 ph\u01b0\u01a1ng ph\u00e1p s\u1eed d\u1ee5ng c\u00f3 \u0111\u01b0\u1ee3c chu\u1ea9n h\u00f3a hay kh\u00f4ng s\u1ebd \u1ea3nh h\u01b0\u1edfng r\u1ea5t l\u1edbn \u0111\u1ebfn hi\u1ec7u su\u1ea5t an to\u00e0n c\u1ee7a pin.<\/span><\/span><\/p>\n

Hi\u1ec7n nay, c\u00f3 nhi\u1ec1u nghi\u00ean c\u1ee9u trong v\u00e0 ngo\u00e0i n\u01b0\u1edbc v\u1ec1 \u1ea3nh h\u01b0\u1edfng c\u1ee7a v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng, \u0111i\u1ec7n c\u1ef1c \u00e2m, ch\u1ea5t \u0111i\u1ec7n ph\u00e2n, m\u00e0ng ng\u0103n v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 kh\u00e1c \u0111\u1ebfn hi\u1ec7u su\u1ea5t an to\u00e0n c\u1ee7a pin lithium, nh\u01b0ng c\u00f3 r\u1ea5t \u00edt nghi\u00ean c\u1ee9u v\u1ec1 \u1ea3nh h\u01b0\u1edfng c\u1ee7a c\u1ea5u tr\u00fac cell v\u00e0 v\u1eadt li\u1ec7u v\u1ecf pin \u0111\u1ebfn hi\u1ec7u su\u1ea5t an to\u00e0n c\u1ee7a pin lithium. Trong b\u00e0i b\u00e1o n\u00e0y, \u1ea3nh h\u01b0\u1edfng c\u1ee7a c\u1ea5u tr\u00fac cell v\u00e0 v\u1eadt li\u1ec7u v\u1ecf pin \u0111\u1ebfn hi\u1ec7u su\u1ea5t an to\u00e0n c\u1ee7a pin lithium \u0111\u00e3 \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u s\u00e2u.<\/span><\/span><\/p>\n

Ba lo\u1ea1i pin \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong th\u00ed nghi\u1ec7m n\u00e0y l\u00e0 pin v\u1ecf th\u00e9p lo\u1ea1i 18650, pin g\u00f3i m\u1ec1m lo\u1ea1i cu\u1ed9n v\u00e0 pin g\u00f3i m\u1ec1m lo\u1ea1i nhi\u1ec1u l\u1edbp c\u00f3 dung l\u01b0\u1ee3ng 2 Ah. S\u1ef1 kh\u00e1c bi\u1ec7t l\u00e0 c\u1ea5u tr\u00fac cell pin v\u00e0 c\u1ea5u tr\u00fac v\u1eadt li\u1ec7u v\u1ecf \u0111\u00f3ng g\u00f3i \u0111\u01b0\u1ee3c chia th\u00e0nh lo\u1ea1i cu\u1ed9n v\u00e0 lo\u1ea1i nhi\u1ec1u l\u1edbp. C\u00e1c cell c\u1ee7a pin v\u1ecf th\u00e9p v\u00e0 pin m\u1ec1m cu\u1ed9n l\u00e0 lo\u1ea1i c\u00f3 c\u1ea5u tr\u00fac cu\u1ed9n, v\u00e0 c\u00e1c cell c\u1ee7a pin m\u1ec1m cu\u1ed9n l\u00e0 lo\u1ea1i c\u00f3 c\u1ea5u tr\u00fac nhi\u1ec1u l\u1edbp. C\u00e1c v\u1eadt li\u1ec7u bao g\u1ed3m m\u00e0ng composite nh\u00f4m nh\u1ef1a v\u00e0 th\u00e9p m\u1ea1 niken.<\/span><\/span><\/p>\n

Th\u1eed nghi\u1ec7m hi\u1ec7u su\u1ea5t an to\u00e0n<\/span><\/span><\/span><\/strong><\/span><\/h1>\n

Trong nghi\u00ean c\u1ee9u n\u00e0y, ba th\u1eed nghi\u1ec7m ng\u1eafn m\u1ea1ch b\u00ean ngo\u00e0i, ch\u00e2m c\u1ee9u v\u00e0 qu\u00e1 t\u1ea3i \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 m\u00f4 t\u1ea3 hi\u1ec7u su\u1ea5t an to\u00e0n c\u1ee7a pin. Ba th\u1eed nghi\u1ec7m an to\u00e0n tr\u00ean \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf. Trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng, th\u1eed nghi\u1ec7m \u0111\u00e2m \u0111inh \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng bu\u1ed3ng th\u1eed \u0111\u00e2m \u0111inh. Hi\u1ec7u su\u1ea5t qu\u00e1 t\u1ea3i \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m b\u1eb1ng t\u1ee7 th\u1eed nghi\u1ec7m.<\/span><\/span><\/p>\n

Th\u1eed nghi\u1ec7m ng\u1eafn m\u1ea1ch ngo\u00e0i<\/span><\/span><\/strong><\/span><\/a><\/span><\/h1>\n

K\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m cho th\u1ea5y nhi\u1ec7t \u0111\u1ed9 c\u1ee7a pin m\u1ec1m nhi\u1ec1u l\u1edbp, pin m\u1ec1m qu\u1ea5n v\u00e0 pin v\u1ecf th\u00e9p 18650 t\u0103ng nhanh trong th\u1eddi gian ng\u1eafn khi x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng \u0111o\u1ea3n m\u1ea1ch b\u00ean ngo\u00e0i, nhi\u1ec7t \u0111\u1ed9 t\u1ed1i \u0111a l\u1ea7n l\u01b0\u1ee3t l\u00e0 64, 82 v\u00e0 102 \u2103. Do \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1eb1ng m\u00e0ng ng\u0103n kh\u00f4 n\u00ean m\u1eb7c d\u00f9 pin b\u1ecb \u0111o\u1ea3n m\u1ea1ch b\u00ean ngo\u00e0i, hai c\u1ef1c c\u1ee7a pin v\u1eabn s\u1edbm cho th\u1ea5y m\u1ed9t \u0111i\u1ec7n \u00e1p nh\u1ea5t \u0111\u1ecbnh. Khi \u0111i\u1ec7n \u00e1p pin t\u0103ng l\u00ean b\u1eb1ng kh\u00f4ng, nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t c\u1ee7a ba lo\u1ea1i pin l\u1ea7n l\u01b0\u1ee3t \u0111\u1ea1t \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 t\u1ed1i \u0111a c\u1ee7a ch\u00fang. Khi d\u00f2ng \u0111i\u1ec7n \u0111o\u1ea3n m\u1ea1ch gi\u1ea3m xu\u1ed1ng b\u1eb1ng kh\u00f4ng, qu\u00e1 tr\u00ecnh x\u1ea3 pin d\u1eebng l\u1ea1i v\u00e0 nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t pin gi\u1ea3m d\u1ea7n xu\u1ed1ng nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng. Kh\u00f4ng c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng ch\u00e1y n\u1ed5 sau khi \u0111o\u1ea3n m\u1ea1ch c\u1ee7a ba lo\u1ea1i pin.<\/span><\/span><\/p>\n

Van an to\u00e0n c\u1ee7a pin v\u1ecf th\u00e9p m\u1edf v\u00e0 c\u00f3 r\u00f2 r\u1ec9 ch\u1ea5t l\u1ecfng. Kh\u00f4ng t\u00ecm th\u1ea5y hi\u1ec7n t\u01b0\u1ee3ng r\u00f5 r\u00e0ng n\u00e0o \u0111\u1ed1i v\u1edbi hai lo\u1ea1i pin c\u00f2n l\u1ea1i. Nguy\u00ean nh\u00e2n c\u1ee7a hi\u1ec7n t\u01b0\u1ee3ng tr\u00ean l\u00e0 t\u1ea1i th\u1eddi \u0111i\u1ec3m d\u00e2y \u0111\u1ed3ng \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i, c\u00e1c \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng v\u00e0 \u00e2m c\u1ee7a pin t\u1ea1o th\u00e0nh m\u1ed9t m\u1ea1ch k\u00edn th\u00f4ng qua d\u00e2y \u0111\u1ed3ng, \u0111i\u1ec7n \u00e1p gi\u1ea3m nhanh, d\u00f2ng \u0111i\u1ec7n t\u0103ng t\u1ee9c th\u1eddi v\u00e0 d\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1edbi h\u01a1n 60 A. Nhi\u1ec7t sinh ra b\u1edfi d\u00f2ng \u0111i\u1ec7n l\u1edbn th\u00f4ng qua \u0111i\u1ec7n tr\u1edf trong c\u1ee7a pin v\u00e0 s\u1ef1 t\u00edch t\u1ee5 nhi\u1ec7t. Nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t c\u1ee7a pin t\u0103ng nhanh.<\/span><\/span><\/p>\n

T\u1eeb th\u00ed nghi\u1ec7m \u0111o\u1ea3n m\u1ea1ch, c\u00f3 th\u1ec3 k\u1ebft lu\u1eadn r\u1eb1ng nhi\u1ec7t \u0111\u1ed9 t\u0103ng c\u1ee7a ba lo\u1ea1i pin l\u00e0 kh\u00e1c nhau. Nhi\u1ec7t \u0111\u1ed9 t\u0103ng t\u1ed1i \u0111a c\u1ee7a pin v\u1ecf th\u00e9p l\u00e0 nh\u1ecf nh\u1ea5t. Ngo\u00e0i vi\u1ec7c l\u1ea5y c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t nh\u01b0 ch\u00e1y n\u1ed5 l\u00e0m ti\u00eau chu\u1ea9n \u0111\u00e1nh gi\u00e1, s\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t c\u1ee7a h\u1ed3 m\u1eb7t tr\u0103ng c\u0169ng l\u00e0 d\u1eef li\u1ec7u tr\u1ef1c quan c\u1ee7a k\u1ebft qu\u1ea3 th\u00ed nghi\u1ec7m, c\u00f3 th\u1ec3 m\u00f4 t\u1ea3 \u01b0u \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a th\u1eed nghi\u1ec7m \u0111o\u1ea3n m\u1ea1ch. Nhi\u1ec7t \u0111\u1ed9 pin c\u00e0ng cao th\u00ec hi\u1ec7u su\u1ea5t an to\u00e0n c\u1ee7a pin c\u00e0ng k\u00e9m. C\u00e1c k\u1ebft qu\u1ea3 tr\u00ean cho th\u1ea5y \u0111\u1ed9 an to\u00e0n c\u1ee7a pin trong ba quy tr\u00ecnh s\u1ea3n xu\u1ea5t l\u1ea7n l\u01b0\u1ee3t l\u00e0 t\u1eeb cao xu\u1ed1ng th\u1ea5p, pin m\u1ec1m nhi\u1ec1u l\u1edbp, pin m\u1ec1m qu\u1ea5n v\u00e0 pin v\u1ecf th\u00e9p 18650.<\/span><\/span><\/p>\n

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

C\u00f3 th\u1ec3 th\u1ea5y t\u1eeb th\u1eed nghi\u1ec7m, nhi\u1ec7t \u0111\u1ed9 c\u1ee7a pin m\u1ec1m qu\u1ea5n v\u00e0 pin v\u1ecf th\u00e9p 18650 t\u0103ng l\u00ean l\u1ea7n l\u01b0\u1ee3t l\u00e0 190 \u2103 v\u00e0 239 \u2103 trong th\u1eddi gian ng\u1eafn, pin v\u1ecf th\u00e9p b\u1eaft l\u1eeda v\u00e0 ch\u00e1y; M\u1ed9t l\u01b0\u1ee3ng l\u1edbn kh\u00f3i \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e1t ra t\u1eeb pin m\u1ec1m cu\u1ed9n, nh\u01b0ng kh\u00f4ng c\u00f3 \u0111\u00e1m ch\u00e1y. Sau \u0111\u00f3, nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t c\u1ee7a pin gi\u1ea3m d\u1ea7n. Tuy nhi\u00ean, pin m\u1ec1m nhi\u1ec1u l\u1edbp kh\u00f4ng b\u1ed1c kh\u00f3i ho\u1eb7c ch\u00e1y, v\u00e0 nhi\u1ec7t \u0111\u1ed9 t\u1ed1i \u0111a ch\u1ec9 l\u00e0 82 \u2103.<\/span><\/span><\/p>\n

C\u01a1 ch\u1ebf c\u1ee7a ph\u1ea3n \u1ee9ng tr\u00ean l\u00e0 sau khi pin b\u1ecb th\u1ee7ng, kim th\u00e9p v\u00e0 c\u00e1c c\u1ef1c d\u01b0\u01a1ng v\u00e0 c\u1ef1c \u00e2m c\u1ee7a pin t\u1ea1o th\u00e0nh m\u1ed9t m\u1ea1ch k\u00edn, v\u00e0 x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng \u0111o\u1ea3n m\u1ea1ch b\u00ean trong ngay l\u1eadp t\u1ee9c. \u0110i\u1ec7n \u00e1p \u1edf c\u1ea3 hai \u0111\u1ea7u pin gi\u1ea3m nhanh xu\u1ed1ng b\u1eb1ng kh\u00f4ng, v\u00e0 d\u00f2ng \u0111i\u1ec7n t\u0103ng \u0111\u1ed9t ng\u1ed9t, t\u1ea1o ra nhi\u1ec7t l\u01b0\u1ee3ng l\u1edbn. Nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t t\u0103ng nhanh, d\u1eabn \u0111\u1ebfn s\u1ef1 gi\u00e3n n\u1edf h\u01a1n n\u1eefa c\u1ee7a v\u00f9ng \u0111o\u1ea3n m\u1ea1ch n\u00f3ng ch\u1ea3y c\u1ee7a m\u00e0ng ng\u0103n, g\u00e2y ra m\u1ed9t v\u00f2ng lu\u1ea9n qu\u1ea9n.<\/span><\/span><\/p>\n

S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa k\u1ebft qu\u1ea3 c\u1ee7a pin m\u1ec1m qu\u1ea5n v\u00e0 pin v\u1ecf th\u00e9p 18650 n\u1eb1m \u1edf v\u1eadt li\u1ec7u v\u1ecf \u0111\u00f3ng g\u00f3i kh\u00e1c nhau. Lo\u1ea1i tr\u01b0\u1edbc s\u1eed d\u1ee5ng m\u00e0ng nh\u1ef1a nh\u00f4m \u0111\u1ec3 \u0111\u00f3ng g\u00f3i v\u00e0 lo\u1ea1i sau s\u1eed d\u1ee5ng th\u00e9p m\u1ea1 niken \u0111\u1ec3 \u0111\u00f3ng g\u00f3i. L\u00fd do t\u1ea1i sao \u00e1p su\u1ea5t n\u1ed5 c\u1ee7a lo\u1ea1i tr\u01b0\u1edbc th\u1ea5p h\u01a1n nhi\u1ec1u so v\u1edbi lo\u1ea1i sau l\u00e0 do m\u00e0ng composite nh\u1ef1a nh\u00f4m c\u1ee7a pin lithium ion \u0111\u00f3ng g\u00f3i m\u1ec1m c\u00f3 \u0111\u1ed9 d\u1ebbo nh\u1ea5t \u0111\u1ecbnh v\u00e0 \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc th\u1ea5p. Trong tr\u01b0\u1eddng h\u1ee3p \u0111o\u1ea3n m\u1ea1ch b\u00ean trong, pin d\u1ec5 b\u1ecb ph\u1ed3ng v\u00e0 x\u1ea3, gi\u1ea3m nguy c\u01a1 n\u1ed5. Pin v\u1ecf th\u00e9p l\u00e0 c\u1ea5u tr\u00fac kh\u00e9p k\u00edn, s\u1ebd t\u1ea1o ra s\u1ee9c n\u1ed5 l\u1edbn trong tr\u01b0\u1eddng h\u1ee3p n\u1ed5.<\/span><\/span><\/p>\n

S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa k\u1ebft qu\u1ea3 c\u1ee7a pin m\u1ec1m cu\u1ed9n v\u00e0 pin m\u1ec1m nhi\u1ec1u l\u1edbp n\u1eb1m \u1edf s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 c\u1ea5u tr\u00fac cell c\u1ee7a ch\u00fang. Cell cu\u1ed9n bao g\u1ed3m m\u1ed9t t\u1ea5m d\u01b0\u01a1ng, m\u1ed9t t\u1ea5m \u00e2m v\u00e0 hai m\u00e0ng ng\u0103n, \u0111\u01b0\u1ee3c qu\u1ea5n b\u1eb1ng m\u00e1y qu\u1ea5n \u0111\u1ec3 t\u1ea1o th\u00e0nh \u0111i\u1ec7n tr\u1edf b\u00ean trong kho\u1ea3ng 50 m\u03a9. C\u00e1c cell c\u1ee7a pin m\u1ec1m nhi\u1ec1u l\u1edbp \u0111\u01b0\u1ee3c x\u1ebfp ch\u1ed3ng xen k\u1ebd v\u1edbi c\u00e1c t\u1ea5m \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng v\u00e0 \u00e2m v\u00e0 m\u00e0ng ng\u0103n, trong \u0111\u00f3 m\u00e0ng ng\u0103n c\u00f3 h\u00ecnh ch\u1eef Z. Pin nhi\u1ec1u l\u1edbp t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi nhi\u1ec1u pin song song, v\u1edbi \u0111i\u1ec7n tr\u1edf b\u00ean trong kho\u1ea3ng 10 m\u03a9.<\/span><\/span><\/p>\n

Ngo\u00e0i ra, do s\u1ed1 l\u1edbp l\u00f5i \u0111i\u1ec7n d\u1ea1ng cu\u1ed9n nhi\u1ec1u h\u01a1n l\u00f5i \u0111i\u1ec7n d\u1ea1ng nhi\u1ec1u l\u1edbp n\u00ean di\u1ec7n t\u00edch ti\u1ebfp x\u00fac ng\u1eafn m\u1ea1ch l\u1edbn h\u01a1n, nhi\u1ec7t sinh ra c\u0169ng nhi\u1ec1u h\u01a1n. Do \u0111\u00f3, nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t c\u1ee7a pin m\u1ec1m d\u1ea1ng cu\u1ed9n cao h\u01a1n 108\u2103 so v\u1edbi pin m\u1ec1m d\u1ea1ng nhi\u1ec1u l\u1edbp. T\u00f3m l\u1ea1i, pin m\u1ec1m d\u1ea1ng nhi\u1ec1u l\u1edbp c\u00f3 hi\u1ec7u su\u1ea5t an to\u00e0n cao nh\u1ea5t.<\/span><\/span><\/p>\n

Ph\u1ea7n k\u1ebft lu\u1eadn<\/span><\/span><\/span><\/strong><\/span><\/h1>\n

K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y pin v\u1ecf th\u00e9p lo\u1ea1i 18650 c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng \u0111\u00e1nh l\u1eeda v\u00e0 ch\u00e1y nghi\u00eam tr\u1ecdng trong th\u00ed nghi\u1ec7m ch\u00e2m c\u1ee9u. Trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m qu\u00e1 t\u1ea3i 3 C, 5 V, pin m\u1ec1m lo\u1ea1i qu\u1ea5n c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng ph\u1ed3ng v\u00e0 \u0111\u00e1nh l\u1eeda v\u00e0 ch\u00e1y, trong khi pin m\u1ec1m nhi\u1ec1u l\u1edbp ch\u1ec9 c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng ph\u1ed3ng. Pin v\u1ecf th\u00e9p kh\u00f4ng c\u00f3 nguy c\u01a1 an to\u00e0n ti\u1ec1m \u1ea9n r\u00f5 r\u00e0ng do c\u00f3 van an to\u00e0n ri\u00eang b\u1ea3o v\u1ec7. Do \u0111\u00f3, c\u1ea5u tr\u00fac cell v\u00e0 v\u1eadt li\u1ec7u v\u1ecf pin l\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t an to\u00e0n c\u1ee7a pin lithium ion.<\/span><\/span><\/p>\n

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Pin lithium ion c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m l\u00e0 n\u0103ng l\u01b0\u1ee3ng ri\u00eang cao, c\u00f4ng su\u1ea5t ri\u00eang cao, n\u1ec1n t\u1ea3ng \u0111i\u1ec7n \u00e1p cao, t\u1ef1 x\u1ea3 nh\u1ecf, tu\u1ed5i th\u1ecd chu k\u1ef3 d\u00e0i, \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng th\u1ea5p v\u00e0 kh\u00f4ng c\u00f3 hi\u1ec7u \u1ee9ng b\u1ed9 nh\u1edb. N\u00f3 \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng, m\u00e1y t\u00ednh,<\/p>\n","protected":false},"author":1,"featured_media":19798,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[],"class_list":["post-19797","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\/19797","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=19797"}],"version-history":[{"count":2,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19797\/revisions"}],"predecessor-version":[{"id":22042,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19797\/revisions\/22042"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media\/19798"}],"wp:attachment":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=19797"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=19797"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=19797"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}