{"id":19684,"date":"2023-07-06T09:35:55","date_gmt":"2023-07-06T09:35:55","guid":{"rendered":"http:\/\/dgbellvietnam.com\/high-and-low-temperature-test-for-lithium-power-battery\/"},"modified":"2024-10-21T20:25:25","modified_gmt":"2024-10-21T13:25:25","slug":"high-and-low-temperature-test-for-lithium-power-battery","status":"publish","type":"post","link":"https:\/\/dgbellvietnam.com\/en\/high-and-low-temperature-test-for-lithium-power-battery\/","title":{"rendered":"Th\u1eed nghi\u1ec7m nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 th\u1ea5p pin \u0111i\u1ec7n Lithium"},"content":{"rendered":"
\n

N\u0103ng l\u01b0\u1ee3ng v\u00e0 m\u00f4i tr\u01b0\u1eddng l\u00e0 hai v\u1ea5n \u0111\u1ec1 c\u01a1 b\u1ea3n \u0111\u1ed1i m\u1eb7t v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n b\u1ec1n v\u1eefng tr\u00ean th\u1ebf gi\u1edbi ng\u00e0y nay. Xe \u0111i\u1ec7n hybrid, v\u1edbi t\u01b0 c\u00e1ch l\u00e0 ph\u01b0\u01a1ng ti\u1ec7n giao th\u00f4ng xanh v\u00e0 hi\u1ec7u qu\u1ea3, \u0111\u00e3 ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c th\u00fac \u0111\u1ea9y tr\u00ean to\u00e0n th\u1ebf gi\u1edbi. V\u1edbi c\u00f4ng ngh\u1ec7 ch\u1ebf t\u1ea1o pin ng\u00e0y c\u00e0ng ho\u00e0n thi\u1ec7n, pin \u0111i\u1ec7n Lithium s\u1eaft phosphate, v\u1edbi t\u01b0 c\u00e1ch l\u00e0 m\u1ed9t b\u1ed9 ph\u1eadn quan tr\u1ecdng c\u1ee7a h\u1ec7 th\u1ed1ng truy\u1ec1n \u0111\u1ed9ng xe \u0111i\u1ec7n hybrid, c\u00f3 t\u00e1c \u0111\u1ed9ng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn c\u00f4ng su\u1ea5t, t\u00ednh kinh t\u1ebf v\u00e0 s\u1ef1 an to\u00e0n c\u1ee7a xe. Do m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng cao, tu\u1ed5i th\u1ecd cao, hi\u1ec7u su\u1ea5t s\u1ea1c v\u00e0 x\u1ea3 cao, ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 \u00e1p d\u1ee5ng r\u1ed9ng, t\u1ef1 x\u1ea3 th\u1ea5p, \u0111i\u1ec7n tr\u1edf b\u00ean trong th\u1ea5p, kh\u00f4ng c\u00f3 hi\u1ec7u \u1ee9ng nh\u1edb, s\u1ea1c nhanh, \u0111\u1ed9 an to\u00e0n cao, \u0111\u1ed9 tin c\u1eady cao, chi ph\u00ed th\u1ea5p v\u00e0 kh\u1ea3 n\u0103ng t\u00e1i s\u1eed d\u1ee5ng, n\u00f3 \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn l\u00e0 pin \u0111i\u1ec7n cho xe c\u00f3 tri\u1ec3n v\u1ecdng nh\u1ea5t.<\/span><\/span><\/p>\n

Tuy nhi\u00ean, trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a pin \u0111i\u1ec7n, v\u1eadt li\u1ec7u Lithium s\u1eaft phosphate c\u00f3 tr\u1edf kh\u00e1ng cao, \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn vi\u1ec7c th\u00fac \u0111\u1ea9y v\u00e0 \u1ee9ng d\u1ee5ng pin \u0111i\u1ec7n Lithium s\u1eaft phosphate. \u0110\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 tr\u1edf kh\u00e1ng pin cao v\u00e0 c\u1ea3i thi\u1ec7n h\u01a1n n\u1eefa hi\u1ec7u su\u1ea5t c\u1ee7a pin Lithium s\u1eaft phosphate, pin \u0111i\u1ec7n Lithium s\u1eaft phosphate \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o b\u1eb1ng c\u00e1ch thay th\u1ebf m\u1ed9t ph\u1ea7n carbon d\u1eabn \u0111i\u1ec7n b\u1eb1ng \u1ed1ng nano carbon c\u00f3 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n tuy\u1ec7t v\u1eddi. \u1ea2nh h\u01b0\u1edfng c\u1ee7a nhi\u1ec7t \u0111\u1ed9 \u0111\u1ebfn nano Pin \u0111i\u1ec7n Lithium s\u1eaft phosphate \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e2n t\u00edch v\u00e0 nghi\u00ean c\u1ee9u t\u1eeb dung l\u01b0\u1ee3ng pin, n\u1ec1n t\u1ea3ng \u0111i\u1ec7n \u00e1p v\u00e0 \u0111\u01b0\u1eddng cong x\u1ea3 \u1edf c\u00e1c nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng kh\u00e1c nhau.<\/span><\/span><\/p>\n

1 Th\u1eed nghi\u1ec7m<\/span><\/span><\/strong><\/span><\/h1>\n

1.1 Thi\u1ebft b\u1ecb v\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng th\u1eed nghi\u1ec7m<\/span><\/span><\/strong><\/span><\/h2>\n

Bu\u1ed3ng th\u1eed nghi\u1ec7m nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 th\u1ea5p <\/span><\/span><\/a>DGBELL<\/span><\/a> , Pin \u0111i\u1ec7n lithium s\u1eaft phosphate (cell \u0111\u01a1n 3,2V, 10Ah)<\/span><\/span><\/p>\n

1.2 C\u00e1c b\u01b0\u1edbc th\u1eed nghi\u1ec7m<\/span><\/span><\/strong><\/span><\/h2>\n

(1) \u0110\u1eb7t nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng b\u00ean trong bu\u1ed3ng nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 th\u1ea5p \u1edf m\u1ee9c -40, -20, -100, 25, 40, 55 v\u00e0 60 \u2103, v\u1edbi \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i l\u00e0 40%.<\/span><\/span><\/p>\n

(2) Ph\u00e1t tri\u1ec3n ph\u01b0\u01a1ng ph\u00e1p s\u1ea1c v\u00e0 x\u1ea3: Ph\u01b0\u01a1ng ph\u00e1p s\u1ea1c l\u00e0 s\u1ea1c pin \u1edf d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i 0,2C (2A) \u0111\u1ebfn 3,65V \u1edf (20 \u00b1 5) \u2103, chuy\u1ec3n sang s\u1ea1c \u0111i\u1ec7n \u00e1p kh\u00f4ng \u0111\u1ed5i cho \u0111\u1ebfn khi d\u00f2ng \u0111i\u1ec7n gi\u1ea3m xu\u1ed1ng c\u00f2n 200mA v\u00e0 d\u1eebng s\u1ea1c. Ph\u01b0\u01a1ng ph\u00e1p x\u1ea3 l\u00e0 \u0111\u1ec3 y\u00ean trong IH \u1edf c\u00e1c nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng kh\u00e1c nhau, sau \u0111\u00f3 x\u1ea3 \u1edf d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i 1C cho \u0111\u1ebfn khi \u0111i\u1ec7n \u00e1p gi\u1ea3m xu\u1ed1ng \u0111i\u1ec7n \u00e1p c\u1eaft l\u00e0 2V v\u00e0 t\u00ednh dung l\u01b0\u1ee3ng x\u1ea3.<\/span><\/span><\/p>\n

(3) L\u1eadp s\u01a1 \u0111\u1ed3 th\u1ef1c nghi\u1ec7m: th\u00ed nghi\u1ec7m n\u00e0y l\u1ea5y 25\u2103 l\u00e0m \u0111i\u1ec3m tham chi\u1ebfu \u0111\u1ec3 ki\u1ec3m tra nhi\u1ec7t \u0111\u1ed9. \u0110\u1ea7u ti\u00ean, ti\u1ebfn h\u00e0nh ki\u1ec3m tra hi\u1ec7u su\u1ea5t \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p. T\u1eeb 25\u2103 \u0111\u1ebfn -40\u2103, l\u1ea7n l\u01b0\u1ee3t l\u1ea5y 0, -10, 20 v\u00e0 -40\u2103 l\u00e0m \u0111i\u1ec3m quan s\u00e1t. T\u1ed1c \u0111\u1ed9 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 l\u00e0 1\u2103\/ph\u00fat. T\u1ea1i m\u1ed7i \u0111i\u1ec3m ki\u1ec3m tra nhi\u1ec7t \u0111\u1ed9, \u0111\u1eb7t pin \u0111\u1ec3 ki\u1ec3m tra trong 24 gi\u1edd, sau \u0111\u00f3 ti\u1ebfn h\u00e0nh ki\u1ec3m tra hi\u1ec7u su\u1ea5t nhi\u1ec7t \u0111\u1ed9 t\u1ea1i \u0111i\u1ec3m nhi\u1ec7t \u0111\u1ed9 n\u00e0y; Sau \u0111\u00f3, ti\u1ebfn h\u00e0nh ki\u1ec3m tra hi\u1ec7u su\u1ea5t \u1edf nhi\u1ec7t \u0111\u1ed9 cao c\u1ee7a pin. \u0110\u1ec3 lo\u1ea1i b\u1ecf t\u00e1c \u0111\u1ed9ng c\u1ee7a th\u1eed nghi\u1ec7m \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, tr\u01b0\u1edbc ti\u00ean kh\u00f4i ph\u1ee5c nhi\u1ec7t \u0111\u1ed9 c\u1ee7a bu\u1ed3ng th\u1eed nghi\u1ec7m nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 th\u1ea5p v\u1ec1 25\u2103 v\u00e0 s\u1eed d\u1ee5ng d\u1eef li\u1ec7u \u0111o \u0111\u01b0\u1ee3c \u1edf nhi\u1ec7t \u0111\u1ed9 n\u00e0y l\u00e0m \u0111i\u1ec3m tham chi\u1ebfu \u0111\u1ec3 ki\u1ec3m tra nhi\u1ec7t \u0111\u1ed9 cao. Sau \u0111\u00f3, ti\u1ebfn h\u00e0nh ki\u1ec3m tra hi\u1ec7u su\u1ea5t \u1edf nhi\u1ec7t \u0111\u1ed9 cao c\u1ee7a pin, b\u1eaft \u0111\u1ea7u t\u1eeb 25\u2103 \u0111\u1ebfn 60\u2103 v\u00e0 nghi\u00ean c\u1ee9u kh\u1ea3 n\u0103ng x\u1ea3 1C c\u1ee7a c\u00e1c lo\u1ea1i pin lithium-ion kh\u00e1c nhau.<\/span><\/span><\/p>\n

(4) Khi bu\u1ed3ng nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 th\u1ea5p \u1ed5n \u0111\u1ecbnh \u1edf \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 c\u00e0i \u0111\u1eb7t, \u0111\u1eb7t pin lithium ion \u0111\u01a1n c\u00f3 \u0111i\u1ec7n \u00e1p ti\u00eau chu\u1ea9n 3,2V sau khi \u0111\u1ec3 y\u00ean trong 1 ng\u00e0y v\u00e0o bu\u1ed3ng th\u1eed nghi\u1ec7m trong 1 gi\u1edd \u0111\u1ec3 pin \u0111\u1ea1t \u0111\u01b0\u1ee3c tr\u1ea1ng th\u00e1i c\u00e2n b\u1eb1ng nhi\u1ec7t.<\/span><\/span><\/p>\n

(5) Khi pin x\u1ea3 \u0111\u1ebfn \u0111i\u1ec7n \u00e1p ng\u1eaft 2,0V, h\u00e3y d\u1eebng x\u1ea3, ph\u00e2n t\u00edch v\u00e0 x\u1eed l\u00fd d\u1eef li\u1ec7u c\u00f3 li\u00ean quan.<\/span><\/span><\/p>\n

2 K\u1ebft qu\u1ea3 v\u00e0 th\u1ea3o lu\u1eadn<\/span><\/span><\/strong><\/span><\/h1>\n

C\u00f3 th\u1ec3 th\u1ea5y t\u1eeb d\u1eef li\u1ec7u r\u1eb1ng dung l\u01b0\u1ee3ng x\u1ea3 c\u1ee7a pin nano Lithium s\u1eaft phosphate \u1edf giai \u0111o\u1ea1n nhi\u1ec7t \u0111\u1ed9 th\u1ea5p gi\u1ea3m d\u1ea7n khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng gi\u1ea3m, v\u00ec trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, n\u1ed3ng \u0111\u1ed9 ch\u1ea5t \u0111i\u1ec7n ph\u00e2n c\u1ee7a pin tr\u1edf n\u00ean l\u1edbn h\u01a1n v\u00e0 t\u1ed1c \u0111\u1ed9 ion lithium t\u00e1ch kh\u1ecfi v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c \u00e2m tr\u1edf n\u00ean ch\u1eadm h\u01a1n.<\/span><\/span><\/p>\n

Ngo\u00e0i ra, do \u0111i\u1ec7n tr\u1edf trong c\u1ee7a pin l\u1edbn h\u01a1n, \u0111\u01b0\u1eddng cong dung l\u01b0\u1ee3ng x\u1ea3 gi\u1ea3m v\u00e0 \u0111i\u1ec7n \u00e1p ng\u1eaft x\u1ea3 c\u1ee7a pin n\u0103ng l\u01b0\u1ee3ng lithium ion \u0111\u1ea1t \u0111\u01b0\u1ee3c tr\u01b0\u1edbc, dung l\u01b0\u1ee3ng x\u1ea3 gi\u1ea3m, hi\u1ec7u su\u1ea5t x\u1ea3 gi\u1ea3m. \u1ede nhi\u1ec7t \u0111\u1ed9 tr\u00ean 0 \u2103, dung l\u01b0\u1ee3ng x\u1ea3 v\u1ec1 c\u01a1 b\u1ea3n c\u00f3 th\u1ec3 duy tr\u00ec tr\u00ean 93% dung l\u01b0\u1ee3ng b\u00ecnh th\u01b0\u1eddng, trong khi \u1edf nhi\u1ec7t \u0111\u1ed9 d\u01b0\u1edbi 0 \u2103, t\u1ed1c \u0111\u1ed9 gi\u1ea3m dung l\u01b0\u1ee3ng x\u1ea3 c\u1ee7a pin n\u0103ng l\u01b0\u1ee3ng lithium-ion t\u0103ng theo nhi\u1ec7t \u0111\u1ed9 gi\u1ea3m.<\/span><\/span><\/p>\n

\u0110\u1ed1i v\u1edbi pin nano Lithium s\u1eaft phosphate, dung l\u01b0\u1ee3ng l\u00e0 88% \u1edf -10 \u2103, 75,3% \u1edf 20 \u2103 v\u00e0 ch\u1ec9 47,1% \u1edf -40 \u2103; \u1ede 25-10 \u2103, t\u1ef7 l\u1ec7 suy gi\u1ea3m dung l\u01b0\u1ee3ng l\u00e0 kho\u1ea3ng 9,5%; \u1ede -10 ~ -20 \u2103, t\u1ef7 l\u1ec7 suy gi\u1ea3m dung l\u01b0\u1ee3ng l\u00e0 kho\u1ea3ng -12,8%, nh\u01b0ng t\u1ef7 l\u1ec7 suy gi\u1ea3m dung l\u01b0\u1ee3ng t\u0103ng m\u1ea1nh t\u1eeb -20 \u2103 \u0111\u1ebfn -40 \u2103, \u0111\u1ea1t kho\u1ea3ng 28,2%. Do \u0111\u00f3, -20 \u2103 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t n\u00fat nhi\u1ec7t \u0111\u1ed9 th\u1ea5p c\u1ee7a pin Lithium s\u1eaft phosphate.<\/span><\/span><\/p>\n

Khi nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n m\u1ed9t ch\u00fat so v\u1edbi nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng (25 \u2103), do ho\u1ea1t \u0111\u1ed9ng v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c t\u0103ng c\u01b0\u1eddng b\u00ean trong pin lithium-ion, t\u1ed1c \u0111\u1ed9 khu\u1ebfch t\u00e1n c\u1ee7a c\u00e1c ion lithium t\u0103ng l\u00ean v\u00e0 kh\u1ea3 n\u0103ng x\u1ea3 c\u1ee7a n\u00f3 t\u0103ng l\u00ean. \u1ede giai \u0111o\u1ea1n nhi\u1ec7t \u0111\u1ed9 cao, s\u1ef1 thay \u0111\u1ed5i dung l\u01b0\u1ee3ng c\u1ee7a pin kh\u00f4ng \u0111\u00e1ng k\u1ec3 v\u00e0 s\u1ef1 thay \u0111\u1ed5i dung l\u01b0\u1ee3ng t\u1ed1i \u0111a ch\u1ec9 t\u0103ng kho\u1ea3ng 3% so v\u1edbi chu\u1ea9n.<\/span><\/span><\/p>\n

Sau 55\u2103, \u0111\u01b0\u1eddng cong dung l\u01b0\u1ee3ng v\u1ec1 c\u01a1 b\u1ea3n kh\u00f4ng thay \u0111\u1ed5i, v\u00e0 \u1edf 60\u2103, dung l\u01b0\u1ee3ng \u1edf c\u00f9ng m\u1ee9c v\u1edbi \u0111i\u1ec3m tham chi\u1ebfu. Tuy nhi\u00ean, trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 cao, c\u00e1c \u0111\u1eb7c t\u00ednh v\u1eadt l\u00fd c\u1ee7a v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c c\u1ee7a pin lithium s\u1ebd b\u1ecb suy gi\u1ea3m kh\u00f4ng th\u1ec3 \u0111\u1ea3o ng\u01b0\u1ee3c v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 ph\u1ea3n \u1ee9ng c\u1ee7a v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c s\u1ebd y\u1ebfu \u0111i, do \u0111\u00f3 kh\u1ea3 n\u0103ng x\u1ea3 v\u00e0 hi\u1ec7u su\u1ea5t x\u1ea3 c\u1ee7a n\u00f3 s\u1ebd gi\u1ea3m. T\u1eeb \u0111i\u1ec3m n\u00e0y, c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng vi\u1ec7c s\u1eed d\u1ee5ng pin trong m\u00f4i tr\u01b0\u1eddng tr\u00ean 50\u2103 trong th\u1eddi gian d\u00e0i n\u00ean tr\u00e1nh c\u00e0ng nhi\u1ec1u c\u00e0ng t\u1ed1t.<\/span><\/span><\/p>\n

Nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng l\u00fd t\u01b0\u1edfng c\u1ee7a pin lithium-ion n\u00ean n\u1eb1m trong kho\u1ea3ng 18~50\u2103 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t x\u1ea3 tr\u00ean 80% v\u00e0 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u c\u00f4ng su\u1ea5t c\u1ee7a to\u00e0n b\u1ed9 xe. T\u1eeb m\u1ed9t s\u1ed1 t\u00e0i li\u1ec7u tham kh\u1ea3o v\u00e0 h\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt, c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o tu\u1ed5i th\u1ecd c\u1ee7a ch\u00ednh pin, nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng n\u00ean \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t trong kho\u1ea3ng t\u1eeb 20 \u0111\u1ebfn 50\u2103.<\/span><\/span><\/p>\n

\u1ede -20\u2103, kh\u1ea3 n\u0103ng x\u1ea3 c\u1ee7a hai lo\u1ea1i pin lithium kh\u00e1c nhau l\u00e0 75,01% kh\u1ea3 n\u0103ng c\u1ee7a Nameplate, v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a pin nano Lithium s\u1eaft phosphate t\u1ed1t h\u01a1n pin Lithium s\u1eaft phosphate; \u1ede -40\u2103, hi\u1ec7u su\u1ea5t x\u1ea3 c\u1ee7a pin nano Lithium s\u1eaft phosphate tuy\u1ec7t v\u1eddi h\u01a1n, v\u00e0 kh\u1ea3 n\u0103ng x\u1ea3 l\u00e0 47,1% kh\u1ea3 n\u0103ng c\u1ee7a Nameplate, trong khi pin Lithium s\u1eaft phosphate ch\u1ec9 l\u00e0 37,5%. Do \u0111\u00f3, vi\u1ec7c s\u1eed d\u1ee5ng \u1ed1ng nano carbon c\u00f3 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n tuy\u1ec7t v\u1eddi \u0111\u1ec3 thay th\u1ebf m\u1ed9t ph\u1ea7n carbon d\u1eabn \u0111i\u1ec7n \u0111\u1ec3 l\u00e0m t\u1ea5m c\u1ef1c d\u01b0\u01a1ng Lithium s\u1eaft phosphate \u0111\u00e3 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 hi\u1ec7u su\u1ea5t s\u1ea1c v\u00e0 x\u1ea3 c\u1ee7a pin Lithium s\u1eaft phosphate.<\/span><\/span><\/p>\n

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

\u0110\u00e3 nghi\u00ean c\u1ee9u hi\u1ec7u su\u1ea5t nhi\u1ec7t \u0111\u1ed9 c\u1ee7a pin lithium s\u1eaft phosphate nano v\u00e0 pin lithium s\u1eaft phosphate carbon d\u1eabn \u0111i\u1ec7n th\u00f4ng th\u01b0\u1eddng. K\u1ebft qu\u1ea3 th\u1ef1c nghi\u1ec7m cho th\u1ea5y nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng c\u00f3 t\u00e1c \u0111\u1ed9ng l\u1edbn \u0111\u1ebfn dung l\u01b0\u1ee3ng c\u1ee7a pin lithium s\u1eaft phosphate.<\/span><\/span><\/p>\n

Dung l\u01b0\u1ee3ng gi\u1ea3m nhanh \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, dung l\u01b0\u1ee3ng xanh t\u0103ng nhanh \u1edf nhi\u1ec7t \u0111\u1ed9 cao, nh\u01b0ng t\u1ed1c \u0111\u1ed9 thay \u0111\u1ed5i th\u1ea5p h\u01a1n \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p. Ngo\u00e0i ra, \u1ed1ng nano cacbon c\u00f3 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n tuy\u1ec7t v\u1eddi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 thay th\u1ebf m\u1ed9t s\u1ed1 cacbon d\u1eabn \u0111i\u1ec7n \u0111\u1ec3 t\u1ea1o th\u00e0nh c\u00e1c t\u1ea5m c\u1ef1c d\u01b0\u01a1ng Lithium s\u1eaft phosphate. Hi\u1ec7u su\u1ea5t s\u1ea1c v\u00e0 x\u1ea3 c\u1ee7a pin Lithium s\u1eaft phosphate \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3.<\/span><\/span><\/p>\n

Dung l\u01b0\u1ee3ng x\u1ea3 c\u1ee7a pin nano Lithium s\u1eaft phosphate \u1edf -40 \u2103 l\u00e0 47,1% dung l\u01b0\u1ee3ng \u1edf 25 \u2103, dung l\u01b0\u1ee3ng x\u1ea3 c\u1ee7a pin Lithium s\u1eaft phosphate th\u00f4ng th\u01b0\u1eddng ch\u1ec9 b\u1eb1ng 37,5% dung l\u01b0\u1ee3ng \u1edf 25 \u2103. Hi\u1ec7u su\u1ea5t \u0111i\u1ec7n h\u00f3a tuy\u1ec7t v\u1eddi c\u1ee7a pin ch\u1ee7 y\u1ebfu l\u00e0 do c\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n c\u1ee7a to\u00e0n b\u1ed9 pin.<\/span><\/span><\/p>\n

\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o tu\u1ed5i th\u1ecd c\u1ee7a pin, nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t trong kho\u1ea3ng 20~50\u2103. \u0110\u1eb7c \u0111i\u1ec3m nhi\u1ec7t \u0111\u1ed9 c\u1ee7a pin Lithium s\u1eaft phosphate \u0111\u01b0\u1ee3c l\u00e0m r\u00f5, c\u00f3 \u00fd ngh\u0129a to l\u1edbn \u0111\u1ed1i v\u1edbi vi\u1ec7c thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd nhi\u1ec7t pin.<\/span><\/span><\/p>\n

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

N\u0103ng l\u01b0\u1ee3ng v\u00e0 m\u00f4i tr\u01b0\u1eddng l\u00e0 hai v\u1ea5n \u0111\u1ec1 c\u01a1 b\u1ea3n \u0111\u1ed1i m\u1eb7t v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n b\u1ec1n v\u1eefng tr\u00ean th\u1ebf gi\u1edbi ng\u00e0y nay. Xe \u0111i\u1ec7n hybrid, v\u1edbi t\u01b0 c\u00e1ch l\u00e0 ph\u01b0\u01a1ng ti\u1ec7n giao th\u00f4ng xanh v\u00e0 hi\u1ec7u qu\u1ea3, \u0111\u00e3 ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c th\u00fac \u0111\u1ea9y tr\u00ean to\u00e0n th\u1ebf gi\u1edbi. V\u1edbi c\u00f4ng ngh\u1ec7 ch\u1ebf t\u1ea1o pin<\/p>\n","protected":false},"author":1,"featured_media":19685,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[],"class_list":["post-19684","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\/19684","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=19684"}],"version-history":[{"count":1,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19684\/revisions"}],"predecessor-version":[{"id":21980,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19684\/revisions\/21980"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media\/19685"}],"wp:attachment":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=19684"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=19684"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=19684"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}