{"id":19700,"date":"2023-05-11T09:30:07","date_gmt":"2023-05-11T09:30:07","guid":{"rendered":"http:\/\/dgbellvietnam.com\/high-temperature-test-for-lithium-battery\/"},"modified":"2024-10-21T20:50:53","modified_gmt":"2024-10-21T13:50:53","slug":"high-temperature-test-for-lithium-battery","status":"publish","type":"post","link":"https:\/\/dgbellvietnam.com\/en\/high-temperature-test-for-lithium-battery\/","title":{"rendered":"Th\u1eed nghi\u1ec7m nhi\u1ec7t \u0111\u1ed9 cao cho pin Lithium"},"content":{"rendered":"
\n

C\u00e1c \u0111i\u1ec1u ki\u1ec7n b\u00ean ngo\u00e0i kh\u1eafc nghi\u1ec7t nh\u01b0 \u0111i\u1ec7n, m\u00e1y m\u00f3c v\u00e0 nhi\u1ec7t l\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng g\u00e2y ra c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 an to\u00e0n trong pin lithium-ion, trong khi c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 an to\u00e0n nh\u01b0 \u0111\u00e1nh l\u1eeda v\u00e0 n\u1ed5 trong pin lithium-ion th\u01b0\u1eddng l\u00e0 do s\u1ef1 m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t.<\/span><\/span><\/p>\n

V\u00ed d\u1ee5, s\u1ea1c qu\u00e1 m\u1ee9c, ng\u1eafn m\u1ea1ch b\u00ean trong, v.v. c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t v\u00e0 g\u00e2y ra c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 an to\u00e0n. Khi v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n an to\u00e0n trong pin, hi\u1ec7n t\u01b0\u1ee3ng m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t c\u1ee7a pin c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng x\u1ea3y ra do c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t k\u00e9m c\u1ee7a b\u1ed9 t\u00e1ch v\u00e0 kh\u1ea3 n\u0103ng x\u1ea3y ra ph\u1ea3n \u1ee9ng oxy h\u00f3a m\u1ea1nh gi\u1eefa ch\u1ea5t \u0111i\u1ec7n ph\u00e2n v\u00e0 \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng.<\/span><\/span><\/p>\n

V\u00ec v\u1eady, t\u00ednh an to\u00e0n c\u1ee7a pin lithium-ion trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t l\u00e0 m\u1ed9t kh\u00eda c\u1ea1nh quan tr\u1ecdng c\u1ee7a nghi\u00ean c\u1ee9u v\u1ec1 t\u00ednh an to\u00e0n c\u1ee7a pin lithium-ion. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd kh\u00e1m ph\u00e1 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m m\u1edbi \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 t\u00ednh an to\u00e0n c\u1ee7a pin lithium-ion khi s\u1eed d\u1ee5ng trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 cao.<\/span><\/span><\/p>\n

1. Ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m<\/span><\/span><\/strong><\/span><\/h1>\n

Hi\u1ec7n nay, c\u00f3 ba lo\u1ea1i ti\u00eau chu\u1ea9n ch\u00ednh \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 an to\u00e0n c\u1ee7a pin lithium-ion: ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf (nh\u01b0 ti\u00eau chu\u1ea9n IEC), 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 UL, IEEE, SJ, v.v.). Trong s\u1ed1 c\u00e1c ti\u00eau chu\u1ea9n hi\u1ec7n c\u00f3 n\u00e0y, c\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh \u1edf nhi\u1ec7t \u0111\u1ed9 cao ch\u1ee7 y\u1ebfu bao g\u1ed3m th\u1eed nghi\u1ec7m l\u1ea1m d\u1ee5ng nhi\u1ec7t, th\u1eed nghi\u1ec7m chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9, th\u1eed nghi\u1ec7m \u0111\u1eb7t \u1edf nhi\u1ec7t \u0111\u1ed9 cao, v.v.<\/span><\/span><\/p>\n

(1) <\/span><\/span>Th\u1eed nghi\u1ec7m l\u1ea1m d\u1ee5ng nhi\u1ec7t<\/span><\/span><\/a><\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m l\u1ea1m d\u1ee5ng nhi\u1ec7t \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh trong IEC62133:2002 l\u00e0 \u1ed5n \u0111\u1ecbnh pin \u0111\u00e3 s\u1ea1c \u0111\u1ea7y \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng v\u00e0 \u0111\u1eb7t pin v\u00e0o l\u1ed3ng \u1ea5p \u0111\u1ed1i l\u01b0u kh\u00f4ng kh\u00ed t\u1ef1 nhi\u00ean ho\u1eb7c tu\u1ea7n ho\u00e0n. L\u1ed3ng \u1ea5p 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. Sau khi duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 n\u00e0y trong 10 ph\u00fat, h\u00e3y d\u1eebng th\u1eed nghi\u1ec7m v\u00e0 ki\u1ec3m tra xem pin c\u00f3 b\u1ecb ch\u00e1y ho\u1eb7c ph\u00e1t n\u1ed5 kh\u00f4ng. Th\u1eed nghi\u1ec7m l\u1ea1m d\u1ee5ng nhi\u1ec7t c\u1ee7a IEC62133 \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00e1c ti\u00eau chu\u1ea9n trong v\u00e0 ngo\u00e0i n\u01b0\u1edbc nh\u01b0 JISC8712, YD1268 v\u00e0 UL1642 \u00e1p d\u1ee5ng.<\/span><\/span><\/p>\n

Th\u1eed nghi\u1ec7m l\u1ea1m d\u1ee5ng nhi\u1ec7t th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 an to\u00e0n c\u1ee7a c\u00e1c cell pin khi \u0111\u1eb7t trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 cao. Trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m, m\u1eabu pin \u1edf tr\u1ea1ng th\u00e1i \u0111\u01b0\u1ee3c s\u1ea1c \u0111\u1ea7y v\u00e0 m\u1eabu kh\u00f4ng \u0111\u01b0\u1ee3c s\u1ea1c ho\u1eb7c x\u1ea3<\/span><\/span><\/p>\n

(2) <\/span><\/span>Th\u1eed nghi\u1ec7m chu k\u1ef3 nhi\u1ec7t<\/span><\/span><\/a><\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9 \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh trong IEC62281:2004 l\u00e0 \u0111\u1eb7t cell pin ho\u1eb7c c\u1ee5m pin trong m\u00f4i tr\u01b0\u1eddng 75 \u00b0 C trong \u00edt nh\u1ea5t 6 gi\u1edd, sau \u0111\u00f3 \u0111\u1eb7t trong m\u00f4i tr\u01b0\u1eddng 40 \u00b0 C trong \u00edt nh\u1ea5t 6 gi\u1edd. Th\u1eddi gian chuy\u1ec3n ti\u1ebfp gi\u1eefa c\u00e1c nhi\u1ec7t \u0111\u1ed9 kh\u00e1c nhau kh\u00f4ng qu\u00e1 30 ph\u00fat v\u00e0 t\u1ed5ng c\u1ed9ng th\u1ef1c hi\u1ec7n 10 chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9. Sau khi th\u1eed nghi\u1ec7m, m\u1eabu kh\u00f4ng \u0111\u01b0\u1ee3c b\u1eaft l\u1eeda ho\u1eb7c ph\u00e1t n\u1ed5 v\u00e0 kh\u00f4ng b\u1ecb m\u1ea5t ch\u1ea5t l\u01b0\u1ee3ng ho\u1eb7c \u0111i\u1ec7n \u00e1p. Th\u1eed nghi\u1ec7m chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9 c\u1ee7a IEC62281 c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb UN38.3 v\u00e0 ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m c\u0169ng \u0111\u01b0\u1ee3c c\u00e1c ti\u00eau chu\u1ea9n trong v\u00e0 ngo\u00e0i n\u01b0\u1edbc nh\u01b0 EN62281 \u00e1p d\u1ee5ng.<\/span><\/span><\/p>\n

Ki\u1ec3m tra chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 m\u00f4 ph\u1ecfng t\u00ednh an to\u00e0n c\u1ee7a c\u00e1c cell pin ho\u1eb7c b\u1ed9 pin khi c\u00f3 nhi\u1ec1u l\u1ea7n thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 xen k\u1ebd trong qu\u00e1 tr\u00ecnh v\u1eadn chuy\u1ec3n. Trong qu\u00e1 tr\u00ecnh ki\u1ec3m tra, m\u1eabu pin \u1edf tr\u1ea1ng th\u00e1i \u0111\u01b0\u1ee3c s\u1ea1c \u0111\u1ea7y v\u00e0 m\u1eabu kh\u00f4ng \u0111\u01b0\u1ee3c s\u1ea1c ho\u1eb7c x\u1ea3 trong qu\u00e1 tr\u00ecnh ki\u1ec3m tra<\/span><\/span><\/p>\n

(3) <\/span><\/span>Th\u1eed nghi\u1ec7m gi\u1ea3m \u1ee9ng su\u1ea5t \u1edf nhi\u1ec7t \u0111\u1ed9 cao<\/span><\/span><\/a><\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m gi\u1ea3m \u1ee9ng su\u1ea5t nhi\u1ec7t \u0111\u1ed9 cao \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh trong lEC62133 \u0111\u1ec3 gi\u1ea3m \u1ee9ng su\u1ea5t nhi\u1ec7t \u0111\u1ed9 cao (kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao c\u1ee7a v\u1ecf \u0111\u00fac) l\u00e0 \u0111\u1eb7t b\u1ed9 pin trong m\u00f4i tr\u01b0\u1eddng c\u00f3 nhi\u1ec7t \u0111\u1ed9 70 \u2103\u00b1 2 \u2103 trong 7 gi\u1edd. Sau khi th\u1eed nghi\u1ec7m, v\u1ecf b\u1ed9 pin kh\u00f4ng \u0111\u01b0\u1ee3c bi\u1ebfn d\u1ea1ng v\u1eadt l\u00fd l\u00e0m l\u1ed9 c\u00e1c th\u00e0nh ph\u1ea7n b\u00ean trong. Th\u1eed nghi\u1ec7m gi\u1ea3m \u1ee9ng su\u1ea5t c\u1ee7a IEC62133 \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00e1c ti\u00eau chu\u1ea9n nh\u01b0 EN62133 v\u00e0 JISC8712 \u00e1p d\u1ee5ng.<\/span><\/span><\/p>\n

Th\u1eed nghi\u1ec7m gi\u1ea3m \u1ee9ng su\u1ea5t nhi\u1ec7t \u0111\u1ed9 cao th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng c\u1ee7a v\u1ecf pin duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao. Trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m, m\u1eabu pin \u1edf tr\u1ea1ng th\u00e1i \u0111\u01b0\u1ee3c s\u1ea1c \u0111\u1ea7y. Trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m, m\u1eabu kh\u00f4ng \u0111\u01b0\u1ee3c s\u1ea1c ho\u1eb7c x\u1ea3. K\u1ebft h\u1ee3p v\u1edbi c\u00e1c th\u1eed nghi\u1ec7m li\u00ean quan \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 cao trong c\u00e1c ti\u00eau chu\u1ea9n pin lithium ion trong v\u00e0 ngo\u00e0i n\u01b0\u1edbc, th\u1eed nghi\u1ec7m l\u1ea1m d\u1ee5ng nhi\u1ec7t nh\u1eb1m m\u1ee5c \u0111\u00edch \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao c\u1ee7a cell pin.<\/span><\/span><\/p>\n

Chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9 l\u00e0 \u0111\u1ec3 m\u00f4 ph\u1ecfng s\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 trong qu\u00e1 tr\u00ecnh v\u1eadn chuy\u1ec3n, Th\u1eed nghi\u1ec7m gi\u1ea3m \u1ee9ng su\u1ea5t nhi\u1ec7t \u0111\u1ed9 cao ch\u1ec9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao c\u1ee7a v\u1ecf \u0111\u00fac. Trong c\u00e1c th\u1eed nghi\u1ec7m n\u00e0y, c\u00e1c m\u1eabu \u1edf tr\u1ea1ng th\u00e1i \u0111\u01b0\u1ee3c s\u1ea1c \u0111\u1ea7y v\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c s\u1ea1c ho\u1eb7c x\u1ea3 trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m.<\/span><\/span><\/p>\n

2. Th\u1eed nghi\u1ec7m nhi\u1ec7t \u0111\u1ed9 cao<\/span><\/span><\/strong><\/span><\/h1>\n

T\u1eeb ph\u00e2n t\u00edch tr\u00ean, c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng c\u00e1c th\u1eed nghi\u1ec7m nhi\u1ec7t \u0111\u1ed9 cao hi\u1ec7n c\u00f3 trong ti\u00eau chu\u1ea9n kh\u00f4ng t\u00ednh \u0111\u1ebfn c\u00e1c v\u1ea5n \u0111\u1ec1 an to\u00e0n \u1edf nhi\u1ec7t \u0111\u1ed9 cao m\u00e0 pin lithium-ion s\u1eed d\u1ee5ng trong \u00f4 t\u00f4 ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u00e0 pin lithium-ion kh\u00f4ng t\u00ednh \u0111\u1ebfn s\u1ef1 gia t\u0103ng nhi\u1ec7t \u0111\u1ed9 do s\u1ea1c v\u00e0 x\u1ea3 trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m.<\/span><\/span><\/p>\n

X\u00e9t \u0111\u1ebfn th\u00f3i quen s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a ng\u01b0\u1eddi d\u00f9ng (khi s\u1ea1c v\u00e0 \u0111\u1ec3 trong xe), k\u1ebft h\u1ee3p v\u1edbi nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 th\u1eddi gian gi\u1eef trong xe, \u0111\u1ed3ng th\u1eddi t\u00ednh \u0111\u1ebfn s\u1ef1 gia t\u0103ng nhi\u1ec7t \u0111\u1ed9 do pin lithium-ion g\u00e2y ra trong qu\u00e1 tr\u00ecnh s\u1ea1c v\u00e0 x\u1ea3, m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m an to\u00e0n pin lithium-ion m\u1edbi \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 t\u00ednh an to\u00e0n c\u1ee7a pin lithium-ion \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao.<\/span><\/span><\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p c\u1ee5 th\u1ec3 nh\u01b0 sau: \u0110\u1eb7t m\u1eabu pin \u0111\u00e3 s\u1ea1c \u0111\u1ea7y v\u00e0o h\u1ed9p th\u1eed nghi\u1ec7m nhi\u1ec7t \u0111\u1ed9 cao, v\u1edbi nhi\u1ec7t \u0111\u1ed9 \u0111\u01b0\u1ee3c \u0111\u1eb7t th\u00e0nh T. Sau khi nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t c\u1ee7a m\u1eabu \u1ed5n \u0111\u1ecbnh trong 7 gi\u1edd, m\u1eabu ph\u1ea3i \u0111\u00e1p \u1ee9ng m\u1ed9t trong c\u00e1c y\u00eau c\u1ea7u sau<\/span><\/span><\/p>\n

    \n
  • C\u1eaft m\u1ea1ch \u0111i\u1ec7n m\u00e0 kh\u00f4ng g\u00e2y ch\u00e1y, n\u1ed5 ho\u1eb7c r\u00f2 r\u1ec9<\/span><\/span><\/li>\n
  • Kh\u00f4ng c\u1eaft m\u1ea1ch, ti\u1ebfp t\u1ee5c chu k\u1ef3 s\u1ea1c x\u1ea3 theo ph\u01b0\u01a1ng ph\u00e1p s\u1ea1c v\u00e0 x\u1ea3 \u0111\u00e3 ch\u1ec9 \u0111\u1ecbnh trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m nhi\u1ec7t \u0111\u1ed9 cao, m\u1eabu kh\u00f4ng \u0111\u01b0\u1ee3c ch\u00e1y, kh\u00f4ng n\u1ed5 v\u00e0 kh\u00f4ng r\u00f2 r\u1ec9.<\/span><\/span><\/li>\n<\/ul>\n

    Trong \u0111\u00f3, gi\u00e1 tr\u1ecb nhi\u1ec7t \u0111\u1ed9 T l\u00e0 gi\u00e1 tr\u1ecb l\u1edbn nh\u1ea5t do nh\u00e0 s\u1ea3n xu\u1ea5t ch\u1ec9 \u0111\u1ecbnh cho nhi\u1ec7t \u0111\u1ed9 gi\u1edbi h\u1ea1n tr\u00ean khi s\u1ea1c v\u00e0 x\u1ea3 c\u1ee7a b\u1ed9 pin, nhi\u1ec7t \u0111\u1ed9 gi\u1edbi h\u1ea1n tr\u00ean khi s\u1ea1c v\u00e0 x\u1ea3 c\u1ee7a pin v\u00e0 80\u2103.<\/span><\/span><\/p>\n

    Trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m s\u1eed d\u1ee5ng nhi\u1ec7t \u0111\u1ed9 cao \u0111\u01b0\u1ee3c \u0111\u1ec1 c\u1eadp \u1edf tr\u00ean, c\u1ea7n ch\u00fa \u00fd nh\u1eefng \u0111i\u1ec3m sau:<\/span><\/span><\/p>\n

    \u2460 Do c\u1ea7n c\u00f3 m\u1ed9t kho\u1ea3ng th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh \u0111\u1ec3 c\u00e2n b\u1eb1ng nhi\u1ec7t n\u00ean th\u1eddi \u0111i\u1ec3m b\u1eaft \u0111\u1ea7u cho th\u1eddi gian th\u1eed nghi\u1ec7m 7 gi\u1edd kh\u00f4ng ph\u1ea3i l\u00e0 khi bu\u1ed3ng th\u1eed nghi\u1ec7m \u0111\u1ea1t \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 T m\u00e0 l\u00e0 khi nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t m\u1eabu \u0111\u1ea1t \u0111\u1ebfn T;<\/span><\/span><\/p>\n

    \u2461 N\u1ebfu chu k\u1ef3 s\u1ea1c v\u00e0 x\u1ea3 c\u1ee7a pin lithium-ion kh\u00f4ng ho\u00e0n th\u00e0nh trong v\u00f2ng 7 gi\u1edd, th\u1eddi gian th\u1eed nghi\u1ec7m ph\u1ea3i \u0111\u01b0\u1ee3c k\u00e9o d\u00e0i cho \u0111\u1ebfn khi k\u1ebft th\u00fac chu k\u1ef3 n\u00e0y;<\/span><\/span><\/p>\n

    \u2462 Do qu\u00e1 tr\u00ecnh truy\u1ec1n nhi\u1ec7t t\u0103ng t\u1ed1c do lu\u1ed3ng kh\u00f4ng kh\u00ed trong bu\u1ed3ng th\u1eed nghi\u1ec7m, d\u1eabn \u0111\u1ebfn m\u1ea5t nhi\u1ec7t b\u1ec1 m\u1eb7t c\u1ee7a pin trong qu\u00e1 tr\u00ecnh s\u1ea1c v\u00e0 x\u1ea3, n\u00ean c\u00f3 th\u1ec3 c\u1ea7n ph\u1ea3i th\u1ef1c hi\u1ec7n c\u00e1c bi\u1ec7n ph\u00e1p nh\u01b0 gi\u1ea3m t\u1ed1c \u0111\u1ed9 gi\u00f3 \u0111\u1ec3 gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng l\u00ean m\u1eabu c\u00e0ng nhi\u1ec1u c\u00e0ng t\u1ed1t;<\/span><\/span><\/p>\n

    \u2463 N\u1ebfu m\u1ea1ch b\u1ea3o v\u1ec7 c\u1ee7a m\u1eabu b\u1ecb ng\u1eaft trong qu\u00e1 tr\u00ecnh s\u1ea1c v\u00e0 x\u1ea3 (thay v\u00ec ng\u1eaft ngay sau khi nhi\u1ec7t \u0111\u1ed9 c\u00e2n b\u1eb1ng), ch\u1ec9 c\u1ea7n ti\u1ebfp t\u1ee5c duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 cao cho \u0111\u1ebfn khi k\u1ebft th\u00fac th\u1eed nghi\u1ec7m (t\u1ed5ng c\u1ed9ng 7 gi\u1edd) v\u00e0 pin kh\u00f4ng g\u1eb7p nguy hi\u1ec3m.<\/span><\/span><\/p>\n

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

    C\u00e1c \u0111i\u1ec1u ki\u1ec7n b\u00ean ngo\u00e0i kh\u1eafc nghi\u1ec7t nh\u01b0 \u0111i\u1ec7n, m\u00e1y m\u00f3c v\u00e0 nhi\u1ec7t l\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng g\u00e2y ra c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 an to\u00e0n trong pin lithium-ion, trong khi c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 an to\u00e0n nh\u01b0 \u0111\u00e1nh l\u1eeda v\u00e0 n\u1ed5 trong pin lithium-ion th\u01b0\u1eddng l\u00e0 do s\u1ef1 m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t. V\u00ed<\/p>\n","protected":false},"author":1,"featured_media":19701,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[],"class_list":["post-19700","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\/19700","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=19700"}],"version-history":[{"count":2,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19700\/revisions"}],"predecessor-version":[{"id":21991,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19700\/revisions\/21991"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media\/19701"}],"wp:attachment":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=19700"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=19700"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=19700"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}