{"id":19694,"date":"2023-06-01T08:37:32","date_gmt":"2023-06-01T08:37:32","guid":{"rendered":"http:\/\/dgbellvietnam.com\/low-temperature-test-of-lithium-battery\/"},"modified":"2024-10-21T20:23:57","modified_gmt":"2024-10-21T13:23:57","slug":"low-temperature-test-of-lithium-battery","status":"publish","type":"post","link":"https:\/\/dgbellvietnam.com\/en\/low-temperature-test-of-lithium-battery\/","title":{"rendered":"Th\u1eed nghi\u1ec7m nhi\u1ec7t \u0111\u1ed9 th\u1ea5p pin Lithium"},"content":{"rendered":"
\n

H\u1ec7 th\u1ed1ng pin \u0111i\u1ec7n l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng con quan tr\u1ecdng c\u1ee7a xe \u0111i\u1ec7n, v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a n\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn c\u00f4ng su\u1ea5t, t\u00ednh kinh t\u1ebf v\u00e0 s\u1ef1 an to\u00e0n c\u1ee7a xe \u0111i\u1ec7n. Vi\u1ec7c s\u1ea1c v\u00e0 x\u1ea3 li\u00ean t\u1ee5c trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng pin \u0111i\u1ec7n c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 c\u1ee7a pin, v\u00e0 nhi\u1ec7t \u0111\u1ed9 pin cao hay th\u1ea5p c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t, tu\u1ed5i th\u1ecd v\u00e0 s\u1ef1 an to\u00e0n c\u1ee7a h\u1ec7 th\u1ed1ng pin. Do \u0111\u00f3, kh\u1ea3 n\u0103ng th\u00edch \u1ee9ng c\u1ee7a pin lithium-ion v\u1edbi nhi\u1ec7t \u0111\u1ed9 \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 ch\u00ednh h\u1ea1n ch\u1ebf \u1ee9ng d\u1ee5ng c\u1ee7a ch\u00fang trong xe \u0111i\u1ec7n v\u00e0 qu\u1ea3n l\u00fd nhi\u1ec7t pin \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t c\u00f4ng ngh\u1ec7 quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t, tu\u1ed5i th\u1ecd v\u00e0 s\u1ef1 an to\u00e0n c\u1ee7a pin.<\/span><\/span><\/p>\n

Nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng t\u1ed1i \u01b0u cho pin \u0111i\u1ec7n l\u00e0 15 \u2103 C-45 \u2103 v\u00e0 ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng th\u1ef1c t\u1ebf l\u00e0 -30 \u2103 -60 \u2103. Trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh v\u00e0o m\u00f9a \u0111\u00f4ng, xe \u0111i\u1ec7n th\u01b0\u1eddng b\u1ecb gi\u1ea3m ph\u1ea1m vi ho\u1ea1t \u0111\u1ed9ng. Nguy\u00ean nh\u00e2n c\u1ee7a t\u00ecnh tr\u1ea1ng n\u00e0y l\u00e0 do kh\u1ea3 n\u0103ng x\u1ea3 c\u1ee7a ch\u00ednh h\u1ec7 th\u1ed1ng pin \u0111i\u1ec7n v\u00e0o m\u00f9a \u0111\u00f4ng th\u1ea5p h\u01a1n so v\u1edbi nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng. N\u1ebfu b\u1eadt \u0111i\u1ec1u h\u00f2a \u00f4 t\u00f4 c\u00f9ng l\u00fac, ph\u1ea1m vi ho\u1ea1t \u0111\u1ed9ng c\u1ee7a xe \u0111i\u1ec7n s\u1ebd kh\u00f4ng \u0111\u1ee7 nghi\u00eam tr\u1ecdng trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh v\u00e0o m\u00f9a \u0111\u00f4ng. \u1ede nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ch\u00ednh ion lithium t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p v\u00e0 ch\u1ea5t \u0111i\u1ec7n ph\u00e2n ch\u1ee7 y\u1ebfu \u1edf tr\u1ea1ng th\u00e1i r\u1eafn ho\u1eb7c b\u00e1n r\u1eafn. Khi ion lithium di chuy\u1ec3n, \u0111i\u1ec7n tr\u1edf cao, ho\u1ea1t \u0111\u1ed9ng k\u00e9m d\u1eabn \u0111\u1ebfn hi\u1ec7u su\u1ea5t x\u1ea3 k\u00e9m.<\/span><\/span><\/p>\n

B\u00e0i vi\u1ebft n\u00e0y ch\u1ee7 y\u1ebfu nghi\u00ean c\u1ee9u t\u00e1c \u0111\u1ed9ng c\u1ee7a nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng v\u00e0 t\u1ed1c \u0111\u1ed9 x\u1ea3 \u0111\u1ebfn hi\u1ec7u su\u1ea5t \u0111i\u1ec7n v\u00e0 nhi\u1ec7t c\u1ee7a pin lithium. B\u00e0i vi\u1ebft ph\u00e2n t\u00edch n\u1ec1n t\u1ea3ng \u0111i\u1ec7n \u00e1p, nhi\u1ec7t \u0111\u1ed9, thay \u0111\u1ed5i dung l\u01b0\u1ee3ng c\u1ee7a pin lithium \u1edf c\u00e1c nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng v\u00e0 t\u1ed1c \u0111\u1ed9 x\u1ea3 kh\u00e1c nhau, c\u0169ng nh\u01b0 s\u1ef1 thay \u0111\u1ed5i hi\u1ec7u su\u1ea5t pin trong \u0111i\u1ec1u ki\u1ec7n x\u1ea3 c\u1ee7a c\u00e1c m\u00f4-\u0111un pin do m\u1ed9t nh\u00e0 cung c\u1ea5p n\u00e0o \u0111\u00f3 cung c\u1ea5p.<\/span><\/span><\/p>\n

Nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng t\u1ed1i \u01b0u c\u1ee7a pin \u0111i\u1ec7n l\u00e0 15\u2103 -45\u2103, v\u00e0 ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng th\u1ef1c t\u1ebf l\u00e0 -30\u2103 -60\u2103. Trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh v\u00e0o m\u00f9a \u0111\u00f4ng, xe \u0111i\u1ec7n th\u01b0\u1eddng b\u1ecb gi\u1ea3m ph\u1ea1m vi ho\u1ea1t \u0111\u1ed9ng. Nguy\u00ean nh\u00e2n c\u1ee7a t\u00ecnh tr\u1ea1ng n\u00e0y l\u00e0 do kh\u1ea3 n\u0103ng x\u1ea3 c\u1ee7a ch\u00ednh h\u1ec7 th\u1ed1ng pin \u0111i\u1ec7n v\u00e0o m\u00f9a \u0111\u00f4ng th\u1ea5p h\u01a1n so v\u1edbi nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng. N\u1ebfu b\u1eadt \u0111i\u1ec1u h\u00f2a \u00f4 t\u00f4 c\u00f9ng l\u00fac, ph\u1ea1m vi ho\u1ea1t \u0111\u1ed9ng c\u1ee7a xe \u0111i\u1ec7n v\u00e0o m\u00f9a \u0111\u00f4ng s\u1ebd kh\u00f4ng \u0111\u1ee7 nghi\u00eam tr\u1ecdng.<\/span><\/span><\/p>\n

\u1ede nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c ion lithium trong h\u1ec7 th\u1ed1ng pin \u0111i\u1ec7n t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p v\u00e0 ch\u1ea5t \u0111i\u1ec7n ph\u00e2n ch\u1ee7 y\u1ebfu \u1edf tr\u1ea1ng th\u00e1i r\u1eafn ho\u1eb7c b\u00e1n r\u1eafn. Khi c\u00e1c ion lithium di chuy\u1ec3n, \u0111i\u1ec7n tr\u1edf cao v\u00e0 ho\u1ea1t \u0111\u1ed9ng k\u00e9m d\u1eabn \u0111\u1ebfn hi\u1ec7u su\u1ea5t x\u1ea3 k\u00e9m. B\u00e0i vi\u1ebft n\u00e0y ch\u1ee7 y\u1ebfu nghi\u00ean c\u1ee9u t\u00e1c \u0111\u1ed9ng c\u1ee7a nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng v\u00e0 t\u1ed1c \u0111\u1ed9 x\u1ea3 \u0111\u1ebfn hi\u1ec7u su\u1ea5t \u0111i\u1ec7n v\u00e0 nhi\u1ec7t c\u1ee7a pin lithium v\u00e0 ph\u00e2n t\u00edch n\u1ec1n t\u1ea3ng \u0111i\u1ec7n \u00e1p, nhi\u1ec7t \u0111\u1ed9 v\u00e0 Thay \u0111\u1ed5i dung l\u01b0\u1ee3ng v\u00e0 thay \u0111\u1ed5i hi\u1ec7u su\u1ea5t pin trong \u0111i\u1ec1u ki\u1ec7n x\u1ea3 c\u1ee7a c\u00e1c m\u00f4-\u0111un pin do m\u1ed9t nh\u00e0 cung c\u1ea5p nh\u1ea5t \u0111\u1ecbnh cung c\u1ea5p.<\/span><\/span><\/p>\n

1 Th\u1eed nghi\u1ec7m nhi\u1ec7t \u0111\u1ed9 th\u1ea5p<\/span><\/span><\/strong><\/span><\/h1>\n

\u0110\u1ed1i t\u01b0\u1ee3ng th\u1eed nghi\u1ec7m: M\u00f4-\u0111un pin, 43,8V, 37,0Ah<\/span><\/span><\/p>\n

Thi\u1ebft b\u1ecb th\u1eed nghi\u1ec7m: <\/span><\/span>Bu\u1ed3ng nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ea9m kh\u00f4ng \u0111\u1ed5i DGBELL<\/span><\/span><\/a> , thi\u1ebft b\u1ecb s\u1ea1c v\u00e0 x\u1ea3<\/span><\/span><\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m l\u00e0 ch\u1ecdn n\u0103m \u0111i\u1ec3m nhi\u1ec7t \u0111\u1ed9 v\u1edbi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng l\u00e0 25 \u2103, 10 \u2103, 0 \u2103, 10 \u2103 v\u00e0 -20 \u2103 v\u00e0 ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m x\u1ea3 v\u1edbi t\u1ed1c \u0111\u1ed9 x\u1ea3 t\u01b0\u01a1ng \u1ee9ng l\u00e0 1C, 0,3C v\u00e0 0,5C. D\u1ef1a tr\u00ean ph\u1ed5 \u0111\u01b0\u1eddng \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c th\u1ef1c t\u1ebf thu \u0111\u01b0\u1ee3c t\u1eeb th\u1eed nghi\u1ec7m xe, n\u00f3 \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i th\u00e0nh d\u00f2ng \u0111i\u1ec7n \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c v\u00e0 ch\u1ecbu c\u00e1c th\u1eed nghi\u1ec7m x\u1ea3 \u1edf nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng l\u00e0 25 \u2103, 0 \u2103 v\u00e0 -20 \u2103. Ghi l\u1ea1i nhi\u1ec7t \u0111\u1ed9, dung l\u01b0\u1ee3ng, n\u0103ng l\u01b0\u1ee3ng, \u0111i\u1ec7n \u00e1p, d\u00f2ng \u0111i\u1ec7n v\u00e0 c\u00e1c d\u1eef li\u1ec7u kh\u00e1c c\u1ee7a c\u00e1c th\u1eed nghi\u1ec7m tr\u00ean.<\/span><\/span><\/p>\n

2 K\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m<\/span><\/span><\/strong><\/span><\/h1>\n

2.1 N\u1ec1n t\u1ea3ng x\u1ea3<\/span><\/span><\/strong><\/span><\/h2>\n

\u1ede nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng kh\u00e1c nhau, n\u1ec1n t\u1ea3ng x\u1ea3 c\u1ee7a pin gi\u1ea3m theo nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng gi\u1ea3m. \u1ede -20 \u2103, n\u1ec1n t\u1ea3ng x\u1ea3 s\u1ebd gi\u1ea3m nhanh trong giai \u0111o\u1ea1n x\u1ea3 ban \u0111\u1ea7u, \u0111\u1ea1t \u0111\u1ebfn giai \u0111o\u1ea1n “m\u00e1ng”. \u0110i\u1ec1u n\u00e0y l\u00e0 do \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, ch\u1ea5t \u0111i\u1ec7n ph\u00e2n \u1edf tr\u1ea1ng th\u00e1i \u0111\u00f4ng \u0111\u1eb7c ho\u1eb7c b\u00e1n \u0111\u00f4ng \u0111\u1eb7c v\u00e0 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n c\u1ee7a ch\u1ea5t \u0111i\u1ec7n ph\u00e2n gi\u1ea3m, d\u1eabn \u0111\u1ebfn n\u1ec1n t\u1ea3ng x\u1ea3 gi\u1ea3m nhanh.<\/span><\/span><\/p>\n

Khi qu\u00e1 tr\u00ecnh x\u1ea3 di\u1ec5n ra, n\u1ec1n t\u1ea3ng x\u1ea3 t\u1eeb t\u1eeb t\u0103ng l\u00ean \u0111\u1ebfn giai \u0111o\u1ea1n \u1ed5n \u0111\u1ecbnh. Trong giai \u0111o\u1ea1n n\u00e0y, khi qu\u00e1 tr\u00ecnh x\u1ea3 di\u1ec5n ra, nhi\u1ec7t \u0111\u01b0\u1ee3c t\u1ea1o ra b\u00ean trong pin, l\u00e0m tan ch\u1ea3y ch\u1ea5t \u0111i\u1ec7n ph\u00e2n, t\u0103ng \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n, gi\u1ea3m \u0111i\u1ec7n tr\u1edf d\u00f2ng electron v\u00e0 n\u00e2ng n\u1ec1n t\u1ea3ng x\u1ea3. Sau khi \u0111\u1ea1t \u0111\u1ebfn n\u1ec1n t\u1ea3ng x\u1ea3 b\u00ecnh th\u01b0\u1eddng, xu h\u01b0\u1edbng x\u1ea3 gi\u1ed1ng nh\u01b0 \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng. M\u1eb7c d\u00f9 xu h\u01b0\u1edbng c\u1ee7a n\u1ec1n t\u1ea3ng x\u1ea3 pin l\u00e0 gi\u1ed1ng nhau, nh\u01b0ng khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng gi\u1ea3m, n\u1ec1n t\u1ea3ng \u0111i\u1ec7n \u00e1p c\u0169ng gi\u1ea3m.<\/span><\/span><\/p>\n

Nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng c\u00e0ng th\u1ea5p, \u201cm\u00e1ng\u201d c\u1ee7a n\u1ec1n \u0111i\u1ec7n \u00e1p c\u00e0ng th\u1ea5p. So s\u00e1nh ba t\u1ed1c \u0111\u1ed9 x\u1ea3, c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng c\u00f3 r\u1ea5t \u00edt s\u1ef1 kh\u00e1c bi\u1ec7t \u1edf m\u1ee9c x\u1ea3 tr\u00ean 0 \u2103, trong khi m\u1ee9c x\u1ea3 d\u01b0\u1edbi 0 \u2103 gi\u1ea3m nhi\u1ec1u h\u01a1n. V\u00e0 so v\u1edbi c\u00e1c nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng kh\u00e1c nhau, nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng c\u00e0ng th\u1ea5p, th\u1eddi gian x\u1ea3 c\u00e0ng ng\u1eafn.<\/span><\/span><\/p>\n

2.2 Nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t pin<\/span><\/span><\/strong><\/span><\/h2>\n

S\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 kh\u00e1c nhau theo c\u00e1c t\u1ed1c \u0111\u1ed9 x\u1ea3 kh\u00e1c nhau v\u00e0 nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng \u0111\u00e3 \u0111\u01b0\u1ee3c so s\u00e1nh. \u1ede c\u00f9ng m\u1ed9t t\u1ed1c \u0111\u1ed9 x\u1ea3, nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng c\u00e0ng th\u1ea5p th\u00ec nhi\u1ec7t \u0111\u1ed9 t\u0103ng c\u00e0ng l\u1edbn. V\u00ed d\u1ee5, \u1edf nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng l\u00e0 -20 \u2103, nhi\u1ec7t \u0111\u1ed9 t\u0103ng trung b\u00ecnh tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a pin x\u1ea3 1C l\u00e0 35 \u2103; \u1ede nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng l\u00e0 25 \u2103, nhi\u1ec7t \u0111\u1ed9 t\u0103ng trung b\u00ecnh tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a pin x\u1ea3 1C l\u00e0 12 \u2103. \u0110i\u1ec1u n\u00e0y c\u0169ng ch\u1ec9 ra r\u1eb1ng \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng h\u01a1n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m n\u00f3ng pin, d\u1eabn \u0111\u1ebfn n\u0103ng l\u01b0\u1ee3ng \u0111\u1ea7u ra nh\u1ecf h\u01a1n.<\/span><\/span><\/p>\n

\u1ede c\u00f9ng nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng, t\u1ed1c \u0111\u1ed9 x\u1ea3 c\u00e0ng th\u1ea5p th\u00ec nhi\u1ec7t \u0111\u1ed9 t\u0103ng tr\u00ean b\u1ec1 m\u1eb7t pin c\u00e0ng nh\u1ecf. V\u00ed d\u1ee5, \u1edf nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng -20 \u2103, nhi\u1ec7t \u0111\u1ed9 t\u0103ng trung b\u00ecnh tr\u00ean b\u1ec1 m\u1eb7t pin x\u1ea3 0,5C l\u00e0 26 \u2103; \u1edf nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng 20 \u2103, nhi\u1ec7t \u0111\u1ed9 t\u0103ng trung b\u00ecnh tr\u00ean b\u1ec1 m\u1eb7t pin x\u1ea3 0,3C l\u00e0 21 \u2103. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng th\u1ea5p, n\u00ean s\u1eed d\u1ee5ng d\u00f2ng \u0111i\u1ec7n nh\u1ecf h\u01a1n \u0111\u1ec3 x\u1ea3. Hi\u1ec7u \u1ee9ng \u0111\u1ea7u ti\u00ean l\u00e0 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t \u0111\u1ea7u ra c\u1ee7a n\u0103ng l\u01b0\u1ee3ng pin; Hi\u1ec7u \u1ee9ng th\u1ee9 hai l\u00e0 \u0111\u1ea3m b\u1ea3o tu\u1ed5i th\u1ecd c\u1ee7a pin.<\/span><\/span><\/p>\n

2.3 Kh\u1ea3 n\u0103ng x\u1ea3<\/span><\/span><\/strong><\/span><\/h2>\n

T\u1eeb k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m, c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng trong c\u00f9ng m\u1ed9t t\u1ed1c \u0111\u1ed9 x\u1ea3, kh\u1ea3 n\u0103ng x\u1ea3 gi\u1ea3m d\u1ea7n khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng gi\u1ea3m. \u1ede nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng -20 \u2103, n\u0103ng l\u01b0\u1ee3ng gi\u1ea3i ph\u00f3ng trong qu\u00e1 tr\u00ecnh x\u1ea3 \u1edf 0,3C l\u00e0 th\u1ea5p nh\u1ea5t, b\u1eb1ng 86% so v\u1edbi \u1edf 25 \u2103. T\u1ed1c \u0111\u1ed9 x\u1ea3 c\u00e0ng nh\u1ecf, nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng c\u00e0ng th\u1ea5p v\u00e0 l\u01b0\u1ee3ng \u0111i\u1ec7n th\u1ea3i ra c\u00e0ng nh\u1ecf. \u1ede nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng 25 \u2103, kh\u1ea3 n\u0103ng x\u1ea3 \u1edf 0,3C cao h\u01a1n m\u1ed9t ch\u00fat, trong khi \u1edf c\u00e1c \u0111i\u1ec3m nhi\u1ec7t \u0111\u1ed9 kh\u00e1c, kh\u1ea3 n\u0103ng x\u1ea3 \u1edf 1C cao h\u01a1n.<\/span><\/span><\/p>\n

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

Trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c ion lithium trong pin t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p, l\u1ef1c d\u00f2ng \u0111i\u1ec7n ph\u00e2n l\u1edbn, \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n gi\u1ea3m v\u00e0 kh\u1ea3 n\u0103ng x\u1ea3 gi\u1ea3m, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ho\u1ea1t \u0111\u1ed9ng c\u1ee7a xe \u0111i\u1ec7n thu\u1ea7n t\u00fay. D\u1ef1a tr\u00ean th\u1eed nghi\u1ec7m th\u1ef1c nghi\u1ec7m, n\u1ec1n t\u1ea3ng x\u1ea3 th\u1ef1c t\u1ebf v\u00e0 nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t thay \u0111\u1ed5i c\u1ee7a pin \u1edf c\u00e1c nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng, t\u1ed1c \u0111\u1ed9 x\u1ea3 v\u00e0 \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh kh\u00e1c nhau \u0111\u00e3 thu \u0111\u01b0\u1ee3c. C\u00e1c k\u1ebft lu\u1eadn sau \u0111\u00e2y \u0111\u00e3 \u0111\u01b0\u1ee3c r\u00fat ra:<\/span><\/span><\/p>\n

(1) N\u1ec1n t\u1ea3ng x\u1ea3 s\u1ebd gi\u1ea3m theo nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng gi\u1ea3m, v\u00e0 s\u1ebd c\u00f3 m\u1ed9t \u201cm\u00e1ng\u201d khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng d\u01b0\u1edbi 0 \u2103. Sau \u201cm\u00e1ng\u201d, n\u1ec1n t\u1ea3ng x\u1ea3 s\u1ebd t\u1eeb t\u1eeb t\u0103ng l\u00ean, v\u00e0 khi n\u00f3 t\u0103ng \u0111\u1ebfn m\u1ed9t m\u1ee9c \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh, xu h\u01b0\u1edbng c\u1ee7a n\u1ec1n t\u1ea3ng x\u1ea3 ph\u00f9 h\u1ee3p v\u1edbi xu h\u01b0\u1edbng c\u1ee7a n\u1ec1n t\u1ea3ng x\u1ea3 \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng.<\/span><\/span><\/p>\n

(2) Khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng gi\u1ea3m, th\u1eddi gian ph\u00f3ng \u0111i\u1ec7n c\u00e0ng ng\u1eafn th\u00ec l\u01b0\u1ee3ng \u0111i\u1ec7n gi\u1ea3i ph\u00f3ng c\u00e0ng nh\u1ecf. \u1ede c\u00f9ng m\u1ed9t nhi\u1ec7t \u0111\u1ed9, dung l\u01b0\u1ee3ng 1C > dung l\u01b0\u1ee3ng 0,5C > dung l\u01b0\u1ee3ng ph\u00f3ng \u0111i\u1ec7n 0,3C.<\/span><\/span><\/p>\n

(3) Khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng gi\u1ea3m, nhi\u1ec7t \u0111\u1ed9 t\u0103ng l\u00ean. \u1ede nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng -20 \u2103, trong giai \u0111o\u1ea1n x\u1ea3 1C, nhi\u1ec7t \u0111\u1ed9 pin t\u0103ng 35 \u2103, v\u1edbi nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng h\u01a1n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m n\u00f3ng pin. Gi\u1ea3m kh\u1ea3 n\u0103ng x\u1ea3.<\/span><\/span><\/p>\n

(4) Trong s\u1ed1 c\u00e1c \u0111i\u1ec3m nhi\u1ec7t \u0111\u1ed9 \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m, kh\u1ea3 n\u0103ng x\u1ea3 th\u1ea5p nh\u1ea5t \u1edf nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng l\u00e0 -20 \u2103 v\u00e0 0,3C. Kh\u1ea3 n\u0103ng x\u1ea3 l\u00e0 86% \u1edf 25 \u2103.<\/span><\/span><\/p>\n

(5) Trong qu\u00e1 tr\u00ecnh x\u1ea3 trong \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh, khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng l\u00e0 -20\u2103, pin \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng d\u01b0\u1edbi 0\u2103. \u0110i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh n\u00e0y c\u00f3 t\u00e1c \u0111\u1ed9ng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn tu\u1ed5i th\u1ecd c\u1ee7a pin. N\u00ean x\u1eed l\u00fd h\u1ec7 th\u1ed1ng pin b\u1eb1ng c\u00e1ch c\u00e1ch \u0111i\u1ec7n, s\u01b0\u1edfi \u1ea5m v\u00e0 c\u00e1c bi\u1ec7n ph\u00e1p kh\u00e1c \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p.<\/span><\/span><\/p>\n

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

H\u1ec7 th\u1ed1ng pin \u0111i\u1ec7n l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng con quan tr\u1ecdng c\u1ee7a xe \u0111i\u1ec7n, v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a n\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn c\u00f4ng su\u1ea5t, t\u00ednh kinh t\u1ebf v\u00e0 s\u1ef1 an to\u00e0n c\u1ee7a xe \u0111i\u1ec7n. Vi\u1ec7c s\u1ea1c v\u00e0 x\u1ea3 li\u00ean t\u1ee5c trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng pin \u0111i\u1ec7n c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn nhi\u1ec7t<\/p>\n","protected":false},"author":1,"featured_media":19695,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[],"class_list":["post-19694","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\/19694","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=19694"}],"version-history":[{"count":2,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19694\/revisions"}],"predecessor-version":[{"id":21979,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19694\/revisions\/21979"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media\/19695"}],"wp:attachment":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=19694"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=19694"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=19694"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}