{"id":19734,"date":"2023-02-02T09:20:56","date_gmt":"2023-02-02T09:20:56","guid":{"rendered":"http:\/\/dgbellvietnam.com\/research-on-thermal-abuse-test-for-lithium-ion-battery\/"},"modified":"2024-10-24T15:51:07","modified_gmt":"2024-10-24T08:51:07","slug":"research-on-thermal-abuse-test-for-lithium-ion-battery","status":"publish","type":"post","link":"https:\/\/dgbellvietnam.com\/en\/research-on-thermal-abuse-test-for-lithium-ion-battery\/","title":{"rendered":"Nghi\u00ean c\u1ee9u v\u1ec1 th\u1eed nghi\u1ec7m l\u1ea1m d\u1ee5ng nhi\u1ec7t cho pin Lithium-ion"},"content":{"rendered":"
\n

1. An to\u00e0n c\u1ee7a pin lithium-ion trong \u0111i\u1ec1u ki\u1ec7n qu\u00e1 nhi\u1ec7t<\/span><\/span><\/strong><\/span><\/h1>\n

C\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 an to\u00e0n c\u1ee7a pin lithium-ion ch\u1ee7 y\u1ebfu bi\u1ec3u hi\u1ec7n b\u1eb1ng ch\u00e1y n\u1ed5 do nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t. Nguy\u00ean nh\u00e2n g\u00e2y ra s\u1ef1 m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c \u0111i\u1ec1u ki\u1ec7n b\u00ean ngo\u00e0i v\u00e0 \u0111i\u1ec1u ki\u1ec7n b\u00ean trong. Nhi\u1ec7t \u0111\u1ed9 b\u00ean trong c\u1ee7a pin c\u0169ng ti\u1ebfp t\u1ee5c t\u0103ng khi nhi\u1ec7t \u0111\u1ed9 b\u00ean ngo\u00e0i ti\u1ebfp t\u1ee5c t\u0103ng. Khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng \u0111\u1ebfn m\u1ed9t nhi\u1ec7t \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh, m\u00e0ng ng\u0103n s\u1ebd \u0111\u01b0\u1ee3c \u0111\u00f3ng nhi\u1ec7t v\u00e0 c\u00e1c c\u1ef1c d\u01b0\u01a1ng v\u00e0 c\u1ef1c \u00e2m s\u1ebd \u0111\u01b0\u1ee3c c\u00e1ch ly \u0111\u1ec3 b\u1ea3o v\u1ec7 an to\u00e0n. Tuy nhi\u00ean, n\u1ebfu m\u00e0ng ng\u0103n kh\u00f4ng \u0111\u00f3ng hi\u1ec7u qu\u1ea3, ho\u1eb7c m\u00e0ng ng\u0103n tan ch\u1ea3y v\u00e0 v\u1ee1, ho\u1eb7c c\u00e1c ph\u1ea3n \u1ee9ng t\u1ecfa nhi\u1ec7t kh\u00e1c x\u1ea3y ra b\u00ean trong pin c\u00f9ng m\u1ed9t l\u00fac, do \u0111\u00f3 nhi\u1ec7t \u0111\u1ed9 pin ti\u1ebfp t\u1ee5c cao, c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 an to\u00e0n. C\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 an to\u00e0n do qu\u00e1 nhi\u1ec7t l\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a t\u00e1c \u0111\u1ed9ng to\u00e0n di\u1ec7n c\u1ee7a c\u00e1c \u0111i\u1ec1u ki\u1ec7n b\u00ean trong v\u00e0 b\u00ean ngo\u00e0i.<\/span><\/span><\/p>\n

V\u00ed d\u1ee5, khi nhi\u1ec7t \u0111\u1ed9 c\u1ee7a pin h\u1ec7 th\u1ed1ng lithium cobaltate v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n an to\u00e0n (ch\u1eb3ng h\u1ea1n nh\u01b0 150\u2103), r\u1ea5t d\u1ec5 g\u00e2y ra ch\u00e1y n\u1ed5 pin do t\u00ednh \u1ed5n \u0111\u1ecbnh nhi\u1ec7t c\u1ee7a m\u00e0ng ng\u0103n v\u00e0 ph\u1ea3n \u1ee9ng oxy h\u00f3a m\u1ea1nh c\u1ee7a ch\u1ea5t \u0111i\u1ec7n ph\u00e2n v\u00e0 c\u1ef1c d\u01b0\u01a1ng.<\/span><\/span><\/p>\n

2. Ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra qu\u00e1 nhi\u1ec7t pin lithium ion<\/span><\/span><\/strong><\/span><\/h1>\n

Hi\u1ec7n nay, c\u00e1c ti\u00eau chu\u1ea9n \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 an to\u00e0n c\u1ee7a pin lithium-ion ch\u1ee7 y\u1ebfu bao g\u1ed3m c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf (nh\u01b0 <\/span><\/span>ti\u00eau chu\u1ea9n IEC<\/span><\/span><\/a> ), ti\u00eau chu\u1ea9n qu\u1ed1c gia ho\u1eb7c khu v\u1ef1c (nh\u01b0 ti\u00eau chu\u1ea9n JIS, GB, EN, v.v.) v\u00e0 ti\u00eau chu\u1ea9n c\u00f4ng nghi\u1ec7p (nh\u01b0 ti\u00eau chu\u1ea9n <\/span><\/span>UL<\/span><\/span><\/a> , IEEE, SJ, QB, v.v.). Trong c\u00e1c ti\u00eau chu\u1ea9n n\u00e0y, nhi\u1ec1u ng\u01b0\u1eddi \u0111\u00e3 s\u1eed d\u1ee5ng \u201c <\/span><\/span>th\u1eed nghi\u1ec7m l\u1ea1m d\u1ee5ng nhi\u1ec7t<\/span><\/span><\/a> \u201d \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 an to\u00e0n c\u1ee7a pin lithium-ion trong \u0111i\u1ec1u ki\u1ec7n qu\u00e1 nhi\u1ec7t. V\u00ed d\u1ee5, ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m l\u1ea1m d\u1ee5ng nhi\u1ec7t \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh trong <\/span><\/span>IEC 62133<\/span><\/span><\/a> : 2002 nh\u01b0 sau: \u201cSau khi pin \u0111\u01b0\u1ee3c s\u1ea1c \u0111\u1ea7y \u1ed5n \u0111\u1ecbnh \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng, \u0111\u1eb7t pin v\u00e0o b\u1ed9 \u0111i\u1ec1u nhi\u1ec7t c\u00f3 \u0111\u1ed1i l\u01b0u kh\u00f4ng kh\u00ed t\u1ef1 nhi\u00ean ho\u1eb7c tu\u1ea7n ho\u00e0n v\u00e0 b\u1ed9 \u0111i\u1ec1u nhi\u1ec7t \u0111\u01b0\u1ee3c l\u00e0m n\u00f3ng \u0111\u1ebfn 130 \u2103 \u00b1 2 \u2103 v\u1edbi t\u1ed1c \u0111\u1ed9 5 \u2103\/ph\u00fat \u00b1 2 \u2103\/ph\u00fat. Duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 n\u00e0y v\u00e0 d\u1eebng th\u1eed nghi\u1ec7m sau 10 ph\u00fat \u0111\u1ec3 ki\u1ec3m tra xem pin c\u00f3 b\u1ecb ch\u00e1y ho\u1eb7c ph\u00e1t n\u1ed5 kh\u00f4ng\u201d. C\u00e1c ti\u00eau chu\u1ea9n n\u00e0y v\u1ec1 c\u01a1 b\u1ea3n ph\u00f9 h\u1ee3p v\u1edbi ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m \u0111\u1ec3 th\u1eed nghi\u1ec7m l\u1ea1m d\u1ee5ng nhi\u1ec7t, Ch\u1ec9 c\u00f3 \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m l\u00e0 h\u01a1i kh\u00e1c m\u1ed9t ch\u00fat.<\/span><\/span><\/p>\n

Ti\u00eau chu\u1ea9n pin lithium-ion, \u0111\u01b0\u1ee3c ph\u00e1t minh v\u00e0i n\u0103m sau khi ph\u00e1t minh ra pin lithium s\u01a1 c\u1ea5p, c\u0169ng \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng sau ti\u00eau chu\u1ea9n pin lithium s\u01a1 c\u1ea5p. Nhi\u1ec1u th\u1eed nghi\u1ec7m an to\u00e0n pin lithium-ion c\u0169ng d\u1ef1a tr\u00ean pin lithium s\u01a1 c\u1ea5p. Th\u1eed nghi\u1ec7m l\u1ea1m d\u1ee5ng nhi\u1ec7t c\u1ee7a pin lithium-ion b\u1eaft ngu\u1ed3n t\u1eeb th\u1eed nghi\u1ec7m l\u1ea1m d\u1ee5ng nhi\u1ec7t c\u1ee7a pin lithium s\u01a1 c\u1ea5p. V\u00ed d\u1ee5, th\u1eed nghi\u1ec7m l\u1ea1m d\u1ee5ng nhi\u1ec7t c\u1ee7a pin lithium-ion trong IEC 62133 v\u1ec1 c\u01a1 b\u1ea3n ph\u00f9 h\u1ee3p v\u1edbi th\u1eed nghi\u1ec7m l\u1ea1m d\u1ee5ng nhi\u1ec7t c\u1ee7a pin lithium s\u01a1 c\u1ea5p trong IEC 60086-4 Pin s\u01a1 c\u1ea5p – Ph\u1ea7n 4: Y\u00eau c\u1ea7u an to\u00e0n cho pin lithium, \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n tr\u01b0\u1edbc \u0111\u00f3.<\/span><\/span><\/p>\n

3. Ph\u00e2n t\u00edch c\u00e1c \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m<\/span><\/span><\/strong><\/span><\/h1>\n

3.1 Ph\u00e2n t\u00edch th\u1eddi gian gi\u1eef nhi\u1ec7t \u0111\u1ed9 cao<\/span><\/span><\/span><\/h2>\n

Trong c\u00e1c ti\u00eau chu\u1ea9n hi\u1ec7n h\u00e0nh, ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m pin lithium-ion v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 “l\u00f2 \u1ea5p n\u00f3ng l\u00ean \u0111\u1ebfn m\u1ed9t nhi\u1ec7t \u0111\u1ed9 cao nh\u1ea5t \u0111\u1ecbnh v\u1edbi t\u1ed1c \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh v\u00e0 duy tr\u00ec \u1edf nhi\u1ec7t \u0111\u1ed9 n\u00e0y trong m\u1ed9t kho\u1ea3ng th\u1eddi gian”. Th\u1eddi gian gi\u1eef c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m n\u00e0y b\u1eaft \u0111\u1ea7u khi nhi\u1ec7t \u0111\u1ed9 c\u1ee7a l\u00f2 \u1ea5p \u0111\u1ea1t \u0111\u1ebfn m\u1ed9t nhi\u1ec7t \u0111\u1ed9 cao nh\u1ea5t \u0111\u1ecbnh. Tuy nhi\u00ean, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y thi\u1ebfu c\u00f4ng b\u1eb1ng \u0111\u1ed1i v\u1edbi c\u00e1c lo\u1ea1i pin kh\u00e1c nhau, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi c\u00e1c lo\u1ea1i pin c\u00f3 k\u00edch th\u01b0\u1edbc kh\u00e1c nhau. T\u1ed1c \u0111\u1ed9 l\u00e0m n\u00f3ng c\u1ee7a c\u00e1c lo\u1ea1i pin kh\u00e1c nhau kh\u00f4ng nh\u1ea5t thi\u1ebft ph\u1ea3i gi\u1ed1ng nhau. Do s\u1ef1 kh\u00e1c bi\u1ec7t l\u1edbn gi\u1eefa t\u1ed1c \u0111\u1ed9 truy\u1ec1n nhi\u1ec7t c\u1ee7a pin lithium-ion v\u00e0 kh\u00f4ng kh\u00ed, n\u00ean t\u1ed1c \u0111\u1ed9 l\u00e0m n\u00f3ng c\u1ee7a pin th\u1ea5p h\u01a1n t\u1ed1c \u0111\u1ed9 c\u1ee7a b\u1ed9 \u0111i\u1ec1u nhi\u1ec7t. Nhi\u1ec7t \u0111\u1ed9 c\u1ee7a pin lithium-ion kh\u00f4ng th\u1ec3 ho\u00e0n to\u00e0n ph\u00f9 h\u1ee3p v\u1edbi nhi\u1ec7t \u0111\u1ed9 trong b\u1ed9 \u0111i\u1ec1u nhi\u1ec7t. Do \u0111\u00f3, khi nhi\u1ec7t \u0111\u1ed9 trong l\u00f2 \u1ea5p \u0111\u1ea1t \u0111\u1ebfn m\u1ed9t nhi\u1ec7t \u0111\u1ed9 cao nh\u1ea5t \u0111\u1ecbnh, pin s\u1ebd m\u1ea5t m\u1ed9t kho\u1ea3ng th\u1eddi gian \u0111\u1ec3 duy tr\u00ec c\u00f9ng nhi\u1ec7t \u0111\u1ed9 v\u1edbi l\u00f2 \u1ea5p. Do v\u1eadt li\u1ec7u, h\u00ecnh d\u1ea1ng, k\u00edch th\u01b0\u1edbc v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a pin kh\u00e1c nhau n\u00ean th\u1eddi gian c\u00e2n b\u1eb1ng c\u1ea7n thi\u1ebft c\u0169ng kh\u00e1c nhau.<\/span><\/span><\/p>\n

B\u1ed1n lo\u1ea1i pin lithium-ion \u0111i\u1ec3n h\u00ecnh \u0111\u01b0\u1ee3c ch\u1ecdn l\u00e0m m\u1eabu: pin vu\u00f4ng dung l\u01b0\u1ee3ng nh\u1ecf, pin h\u00ecnh tr\u1ee5, pin vu\u00f4ng dung l\u01b0\u1ee3ng l\u1edbn v\u00e0 pin polymer. \u0110\u1eb7t m\u1eabu v\u00e0o l\u00f2 \u1ea5p, l\u00e0m n\u00f3ng \u0111\u1ebfn 130\u2103 v\u1edbi t\u1ed1c \u0111\u1ed9 5\u2103\/ph\u00fat v\u00e0 gi\u1eef trong m\u1ed9t kho\u1ea3ng th\u1eddi gian.<\/span><\/span><\/p>\n

Qua so s\u00e1nh, c\u00f3 th\u1ec3 k\u1ebft lu\u1eadn r\u1eb1ng t\u1ed1c \u0111\u1ed9 t\u0103ng nhi\u1ec7t \u0111\u1ed9 c\u1ee7a c\u00e1c lo\u1ea1i pin kh\u00e1c nhau c\u00f3 s\u1ef1 ch\u00eanh l\u1ec7ch l\u1edbn, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi pin l\u1edbn, th\u1eddi gian c\u00e2n b\u1eb1ng nhi\u1ec7t d\u00e0i h\u01a1n. Sau khi nhi\u1ec7t \u0111\u1ed9 c\u1ee7a l\u1ed3ng \u1ea5p t\u0103ng l\u00ean m\u1ee9c t\u1ed1i \u0111a v\u00e0 duy tr\u00ec trong 10 ph\u00fat, nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t c\u1ee7a c\u00e1c cell kh\u00e1c, ngo\u1ea1i tr\u1eeb m\u1eabu (cell polyme), v\u1eabn ch\u01b0a t\u0103ng l\u00ean \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 t\u1ed1i \u0111a.<\/span><\/span><\/p>\n

T\u00f3m l\u1ea1i, kh\u00f4ng gi\u1ed1ng nhau \u0111\u1ed1i v\u1edbi c\u00e1c lo\u1ea1i pin kh\u00e1c nhau khi b\u1eaft \u0111\u1ea7u t\u00ednh th\u1eddi gian khi nhi\u1ec7t \u0111\u1ed9 c\u1ee7a l\u1ed3ng \u1ea5p t\u0103ng l\u00ean \u0111\u1ebfn m\u1ed9t nhi\u1ec7t \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh. \u0110\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi c\u00e1c lo\u1ea1i pin l\u1edbn, m\u1ee5c \u0111\u00edch th\u1eed nghi\u1ec7m v\u00e0 \u0111\u00e1nh gi\u00e1 ch\u01b0a \u0111\u1ea1t \u0111\u01b0\u1ee3c v\u00ec pin ch\u01b0a \u0111\u1ea1t \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 th\u1eed nghi\u1ec7m. Tuy nhi\u00ean, h\u1ee3p l\u00fd h\u01a1n l\u00e0 theo d\u00f5i nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t c\u1ee7a pin trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m v\u00e0 l\u1ea5y nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t c\u1ee7a pin \u0111\u1ea1t \u0111\u1ebfn m\u1ed9t nhi\u1ec7t \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh l\u00e0m \u0111i\u1ec1u ki\u1ec7n b\u1eaft \u0111\u1ea7u \u0111\u1ec3 t\u00ednh th\u1eddi gian. Tuy nhi\u00ean, kh\u00f3 v\u1eadn h\u00e0nh v\u00ec th\u1eddi gian c\u00e2n b\u1eb1ng c\u1ee7a m\u1ed7i m\u1eabu c\u00f3 th\u1ec3 h\u01a1i kh\u00e1c nhau khi th\u1eed nghi\u1ec7m \u00edt nh\u1ea5t ba m\u1eabu c\u00f9ng m\u1ed9t l\u00fac. Lo\u1ea1i pin \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c s\u1ea3n ph\u1ea9m \u0111i\u1ec7n t\u1eed hi\u1ec7n t\u1ea1i \u0111\u01b0\u1ee3c xem x\u00e9t to\u00e0n di\u1ec7n v\u00e0 c\u00e2n nh\u1eafc nghi\u00eam ng\u1eb7t. S\u1ebd h\u1ee3p l\u00fd h\u01a1n n\u1ebfu l\u1ea5y nhi\u1ec7t \u0111\u1ed9 c\u1ee7a l\u1ed3ng \u1ea5p l\u00e0m \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m sau khi t\u0103ng \u0111\u1ebfn m\u1ed9t nhi\u1ec7t \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh v\u00e0 duy tr\u00ec trong 30 ph\u00fat.<\/span><\/span><\/p>\n

3.2 Ph\u00e2n t\u00edch nhi\u1ec7t \u0111\u1ed9 th\u1eed nghi\u1ec7m t\u1ed1i \u0111a<\/span><\/span><\/span><\/h2>\n

Nhi\u1ec7t \u0111\u1ed9 t\u1ed1i \u0111a m\u00e0 c\u00e1c v\u1eadt li\u1ec7u pin kh\u00e1c nhau c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c l\u00e0 kh\u00e1c nhau v\u00e0 c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n c\u00f3 ngh\u0129a l\u00e0 pin c\u00f3 \u0111\u1ed9 an to\u00e0n cao h\u01a1n trong \u0111i\u1ec1u ki\u1ec7n qu\u00e1 nhi\u1ec7t. C\u00e1c \u0111\u1eb7c t\u00ednh nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u m\u00e0ng ng\u0103n r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi \u0111\u1ed9 an to\u00e0n nhi\u1ec7t c\u1ee7a pin lithium-ion v\u00e0 nhi\u1ec7t \u0111\u1ed9 t\u1ed1i \u0111a m\u00e0 c\u00e1c v\u1eadt li\u1ec7u m\u00e0ng ng\u0103n kh\u00e1c nhau c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c c\u0169ng kh\u00e1c nhau. C\u00e1c v\u1eadt li\u1ec7u m\u00e0ng ng\u0103n th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng bao g\u1ed3m PE, PP v\u00e0 PE-PP-PE, c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 t\u1ed1i \u0111a l\u00e0 130 \u2103 ~ 150 \u2103. \u0110\u1ed9 an to\u00e0n qu\u00e1 nhi\u1ec7t c\u1ee7a pin do ch\u00fang s\u1ea3n xu\u1ea5t c\u0169ng kh\u00f4ng nh\u1ea5t qu\u00e1n. B\u1ed1n m\u1eabu pin tr\u00ean \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m l\u1ea1m d\u1ee5ng nhi\u1ec7t \u1edf l\u1ea7n l\u01b0\u1ee3t l\u00e0 130 \u2103, 140 \u2103, 145 \u2103 v\u00e0 150 \u2103.<\/span><\/span><\/p>\n

C\u00f3 th\u1ec3 th\u1ea5y t\u1eeb th\u1eed nghi\u1ec7m th\u1ef1c t\u1ebf r\u1eb1ng trong th\u1eed nghi\u1ec7m l\u1ea1m d\u1ee5ng nhi\u1ec7t \u1edf 130 \u2103, pin h\u1ea7u nh\u01b0 kh\u00f4ng c\u00f3 ph\u1ea3n \u1ee9ng t\u1ecfa nhi\u1ec7t ri\u00eang sau khi c\u00e2n b\u1eb1ng nhi\u1ec7t, khi\u1ebfn nhi\u1ec7t \u0111\u1ed9 t\u0103ng l\u00ean t\u1ef1 ph\u00e1t, trong khi trong th\u1eed nghi\u1ec7m \u1edf 135 \u2103, 140 \u2103, 145 \u2103 v\u00e0 150 \u2103, ph\u1ea3n \u1ee9ng t\u1ecfa nhi\u1ec7t ri\u00eang c\u1ee7a n\u00f3 x\u1ea3y ra \u1edf c\u00e1c m\u1ee9c \u0111\u1ed9 kh\u00e1c nhau v\u00e0 nhi\u1ec7t \u0111\u1ed9 th\u1eed nghi\u1ec7m c\u00e0ng cao, ph\u1ea3n \u1ee9ng t\u1ecfa nhi\u1ec7t c\u00e0ng m\u1ea1nh. Khi nhi\u1ec7t \u0111\u1ed9 th\u1eed nghi\u1ec7m t\u0103ng l\u00ean, ph\u1ea3n \u1ee9ng t\u1ef1 l\u00e0m n\u00f3ng c\u1ee7a pin d\u1ea7n d\u1ea7n t\u0103ng c\u01b0\u1eddng, \u0111\u00e1nh gi\u00e1 v\u1ec1 \u0111\u1ed9 an to\u00e0n nghi\u00eam tr\u1ecdng h\u01a1n v\u00e0 nguy c\u01a1 ch\u00e1y n\u1ed5 t\u0103ng l\u00ean.<\/span><\/span><\/p>\n

C\u00f3 th\u1ec3 th\u1ea5y t\u1eeb tr\u00ean r\u1eb1ng 130 \u2103 ch\u1ec9 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m nhi\u1ec7t \u0111\u1ed9 th\u1eed nghi\u1ec7m c\u01a1 b\u1ea3n nh\u1ea5t \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 l\u1ea1m d\u1ee5ng nhi\u1ec7t. \u0110\u1ed3ng th\u1eddi, nhi\u1ec7t \u0111\u1ed9 th\u1eed nghi\u1ec7m c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u0103ng l\u00ean theo c\u00e1c d\u1ecbp s\u1eed d\u1ee5ng kh\u00e1c nhau c\u1ee7a pin. Ngo\u00e0i ra, th\u1eed nghi\u1ec7m c\u0169ng cho th\u1ea5y r\u1eb1ng n\u1ebfu nhi\u1ec7t \u0111\u1ed9 pin t\u0103ng l\u00ean \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 c\u00e0i \u0111\u1eb7t, n\u1ebfu qu\u00e1 tr\u00ecnh gia nhi\u1ec7t kh\u00f4ng d\u1eebng l\u1ea1i ngay l\u1eadp t\u1ee9c, pin s\u1ebd \u0111\u01b0\u1ee3c gi\u1eef \u1edf nhi\u1ec7t \u0111\u1ed9 c\u00e0i \u0111\u1eb7t trong m\u1ed9t kho\u1ea3ng th\u1eddi gian \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00f3 th\u1ec3 x\u1ea3y ra ph\u1ea3n \u1ee9ng t\u1ef1 nhi\u1ec7t \u0111\u1ee7 \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 t\u1ed1t h\u01a1n v\u1ec1 \u0111\u1ed9 an to\u00e0n qu\u00e1 nhi\u1ec7t c\u1ee7a pin.<\/span><\/span><\/p>\n

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

C\u00e1c v\u1ea5n \u0111\u1ec1 an to\u00e0n c\u1ee7a pin lithium-ion ch\u1ee7 y\u1ebfu l\u00e0 do <\/span><\/span>nhi\u1ec7t \u0111\u1ed9<\/span><\/span><\/a> t\u0103ng cao. \u0110\u1ed1i v\u1edbi pin lithium-ion \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p \u0111\u1eb7c bi\u1ec7t, c\u0169ng c\u00f3 th\u1ec3 xem x\u00e9t \u0111\u00e1nh gi\u00e1 th\u00eam v\u1ec1 \u0111\u1ed9 an to\u00e0n c\u1ee7a pin lithium-ion b\u1eb1ng c\u00e1ch t\u0103ng nhi\u1ec7t \u0111\u1ed9 th\u1eed nghi\u1ec7m, k\u00e9o d\u00e0i th\u1eddi gian gi\u1eef nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c \u0111\u1ec3 th\u1eaft ch\u1eb7t \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m.<\/span><\/span><\/p>\n

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1. An to\u00e0n c\u1ee7a pin lithium-ion trong \u0111i\u1ec1u ki\u1ec7n qu\u00e1 nhi\u1ec7t C\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 an to\u00e0n c\u1ee7a pin lithium-ion ch\u1ee7 y\u1ebfu bi\u1ec3u hi\u1ec7n b\u1eb1ng ch\u00e1y n\u1ed5 do nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t. Nguy\u00ean nh\u00e2n g\u00e2y ra s\u1ef1 m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c \u0111i\u1ec1u ki\u1ec7n b\u00ean ngo\u00e0i v\u00e0 \u0111i\u1ec1u<\/p>\n","protected":false},"author":1,"featured_media":19735,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[],"class_list":["post-19734","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\/19734","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=19734"}],"version-history":[{"count":1,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19734\/revisions"}],"predecessor-version":[{"id":22015,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19734\/revisions\/22015"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media\/19735"}],"wp:attachment":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=19734"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=19734"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=19734"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}