{"id":19680,"date":"2023-07-20T05:39:03","date_gmt":"2023-07-20T05:39:03","guid":{"rendered":"http:\/\/dgbellvietnam.com\/low-temperature-test-for-lithium-ev-battery\/"},"modified":"2024-10-21T20:11:43","modified_gmt":"2024-10-21T13:11:43","slug":"low-temperature-test-for-lithium-ev-battery","status":"publish","type":"post","link":"https:\/\/dgbellvietnam.com\/en\/low-temperature-test-for-lithium-ev-battery\/","title":{"rendered":"Th\u1eed nghi\u1ec7m nhi\u1ec7t \u0111\u1ed9 th\u1ea5p pin Lithium EV"},"content":{"rendered":"
\n

Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, xe \u0111i\u1ec7n \u0111\u00e3 \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 ph\u00e1t tri\u1ec3n ch\u01b0a t\u1eebng c\u00f3 v\u00e0 c\u00e1c qu\u1ed1c gia \u0111ang t\u00edch c\u1ef1c th\u1ef1c hi\u1ec7n c\u00f4ng t\u00e1c nghi\u00ean c\u1ee9u li\u00ean quan. Trong c\u00e1c lo\u1ea1i xe d\u00e2n d\u1ee5ng, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u00f4 t\u00f4 l\u1edbn ti\u1ebfp t\u1ee5c gi\u1edbi thi\u1ec7u c\u00e1c lo\u1ea1i xe \u0111i\u1ec7n hybrid ti\u00ean ti\u1ebfn v\u1ec1 m\u1eb7t c\u00f4ng ngh\u1ec7 v\u00e0 xe \u0111i\u1ec7n thu\u1ea7n t\u00fay. V\u1ec1 xe qu\u00e2n s\u1ef1, nhi\u1ec1u qu\u1ed1c gia c\u0169ng \u0111\u00e3 th\u1ef1c hi\u1ec7n r\u1ea5t nhi\u1ec1u c\u00f4ng t\u00e1c nghi\u00ean c\u1ee9u. So v\u1edbi xe truy\u1ec1n \u0111\u1ed9ng c\u01a1 h\u1ecdc, xe \u0111i\u1ec7n qu\u00e2n s\u1ef1 c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m sau: b\u1ed1 tr\u00ed h\u1ec7 th\u1ed1ng \u0111i\u1ec7n thu\u1eadn ti\u1ec7n; Xe d\u1ec5 kh\u1edfi \u0111\u1ed9ng v\u00e0 t\u0103ng t\u1ed1c; C\u00f3 th\u1ec3 l\u00e1i xe im l\u1eb7ng v\u1edbi kh\u1ea3 n\u0103ng ng\u1ee5y trang t\u1ed1t; C\u00f3 th\u1ec3 cung c\u1ea5p ngu\u1ed3n \u0111i\u1ec7n c\u00f4ng su\u1ea5t cao cho c\u00e1c h\u1ec7 th\u1ed1ng v\u0169 kh\u00ed g\u1eafn tr\u00ean xe; C\u00f3 th\u1ec3 h\u1ea5p th\u1ee5 n\u0103ng l\u01b0\u1ee3ng phanh t\u00e1i t\u1ea1o, v.v.<\/span><\/span><\/p>\n

Hoa K\u1ef3, \u0110\u1ee9c, Anh v\u00e0 c\u00e1c n\u01b0\u1edbc kh\u00e1c \u0111\u00e3 l\u1ea7n l\u01b0\u1ee3t cho ra m\u1eaft c\u00e1c lo\u1ea1i xe \u0111i\u1ec7n qu\u00e2n s\u1ef1 nh\u01b0 xe b\u1ecdc th\u00e9p \u0111i\u1ec7n v\u00e0 xe chi\u1ebfn \u0111\u1ea5u b\u1ed9 binh. Trong s\u1ef1 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng c\u1ee7a c\u00f4ng ngh\u1ec7 \u0111i\u1ec7n, m\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 c\u0169ng tr\u1edf n\u00ean n\u1ed5i b\u1eadt, trong \u0111\u00f3 ti\u1ebfng \u1ed3n l\u1edbn c\u1ee7a bong b\u00f3ng \u0111i\u1ec7n \u0111\u1eb7c bi\u1ec7t \u0111\u00e1ng k\u1ec3. Hi\u1ec7u su\u1ea5t v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a pin \u0111i\u1ec7n \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn hi\u1ec7u su\u1ea5t v\u00e0 gi\u00e1 th\u00e0nh c\u1ee7a xe \u0111i\u1ec7n. Hi\u1ec7n nay, c\u00e1c lo\u1ea1i pin \u0111i\u1ec7n ch\u00ednh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong xe \u0111i\u1ec7n l\u00e0 pin axit ch\u00ec, pin niken-cadmi, pin niken-kim lo\u1ea1i hydride, pin lithium ion v\u00e0 si\u00eau t\u1ee5 \u0111i\u1ec7n.<\/span><\/span><\/p>\n

Pin \u0111i\u1ec7n lithium ion \u0111\u00e3 d\u1ea7n thay th\u1ebf pin axit ch\u00ec, pin niken-cadmi v\u00e0 pin niken-kim lo\u1ea1i hydride l\u00e0m pin \u0111i\u1ec7n ch\u00ednh cho xe \u0111i\u1ec7n v\u00ec c\u00f4ng su\u1ea5t ri\u00eang cao, m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng l\u1edbn, tu\u1ed5i th\u1ecd cao, t\u1ef7 l\u1ec7 t\u1ef1 x\u1ea3 th\u1ea5p, th\u1eddi gian l\u01b0u tr\u1eef l\u00e2u v\u00e0 kh\u00f4ng g\u00e2y \u00f4 nhi\u1ec5m. Xe qu\u00e2n s\u1ef1 th\u01b0\u1eddng ph\u1ea3i ho\u1ea1t \u0111\u1ed9ng \u1edf v\u00f9ng l\u1ea1nh v\u00e0 ch\u00fang \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng \u1edf nhi\u1ec7t \u0111\u1ed9 -40 \u2103. Tuy nhi\u00ean, \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, hi\u1ec7u su\u1ea5t s\u1ea1c v\u00e0 x\u1ea3 pin \u0111\u00e3 gi\u1ea3m \u0111\u00e1ng k\u1ec3. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p tr\u00ean pin lithium-ion 35A \u2022 h.<\/span><\/span><\/p>\n

1 Ki\u1ec3m tra pin lithium ion<\/span><\/span><\/strong><\/span><\/h1>\n

Thi\u1ebft b\u1ecb s\u1ea1c v\u00e0 x\u1ea3 pin, v\u1edbi \u0111i\u1ec7n \u00e1p t\u1ed1i \u0111a l\u00e0 5V v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c th\u1eed nghi\u1ec7m l\u00e0 0,1 mV; Trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m, pin \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m \u0111\u01b0\u1ee3c \u0111\u1eb7t trong bu\u1ed3ng <\/span><\/span>nhi\u1ec7t \u0111\u1ed9<\/span><\/span><\/a> \u0111\u1ec3 duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng c\u1ea7n thi\u1ebft \u0111\u1ec3 th\u1eed nghi\u1ec7m. Pin th\u1eed nghi\u1ec7m l\u00e0 m\u1ed9t g\u00f3i m\u1ec1m (30cmx16,8cmx1,5cm) 35 Ah pin lithium mangan c\u00e2n b\u1eb1ng n\u0103ng l\u01b0\u1ee3ng v\u00e0 c\u00f4ng su\u1ea5t, v\u1edbi l\u1edbp m\u00e0ng nh\u1ef1a nh\u00f4m l\u00e0m v\u1ecf ngo\u00e0i.<\/span><\/span><\/p>\n

2 \u1ea2nh h\u01b0\u1edfng c\u1ee7a nhi\u1ec7t \u0111\u1ed9 th\u1ea5p \u0111\u1ebfn \u0111i\u1ec7n \u00e1p pin<\/span><\/span><\/strong><\/span><\/h1>\n

2.1 \u1ea2nh h\u01b0\u1edfng c\u1ee7a nhi\u1ec7t \u0111\u1ed9 th\u1ea5p \u0111\u1ebfn \u0111i\u1ec7n \u00e1p x\u1ea3 c\u1ee7a pin<\/span><\/span><\/strong><\/span><\/h2>\n

\u0110\u1ec3 nghi\u00ean c\u1ee9u \u1ea3nh h\u01b0\u1edfng c\u1ee7a nhi\u1ec7t \u0111\u1ed9 th\u1ea5p \u0111\u1ebfn hi\u1ec7u su\u1ea5t x\u1ea3 c\u1ee7a pin, \u0111\u1ea7u ti\u00ean pin \u0111\u01b0\u1ee3c s\u1ea1c \u1edf t\u1ed1c \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i \u0111\u1ebfn \u0111i\u1ec7n \u00e1p kh\u00f4ng \u0111\u1ed5i l\u00e0 1\/3 C \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng, s\u1ea1c \u0111\u1ea7y, sau \u0111\u00f3 \u0111\u1ec3 trong bu\u1ed3ng nhi\u1ec7t \u0111\u1ed9 trong 5 gi\u1edd. Sau \u0111\u00f3, pin \u0111\u01b0\u1ee3c x\u1ea3 \u1edf t\u1ed1c \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i v\u1edbi \u0111i\u1ec7n \u00e1p c\u1eaft l\u00e0 3V. Trong ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 t\u1eeb 0-40 \u2103, x\u1ea3 \u1edf d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i l\u1ea7n l\u01b0\u1ee3t l\u00e0 10, 35, 70 v\u00e0 140A.<\/span><\/span><\/p>\n

K\u1ebft qu\u1ea3 th\u1ef1c nghi\u1ec7m cho th\u1ea5y \u1edf c\u00f9ng m\u1ed9t t\u1ed1c \u0111\u1ed9 x\u1ea3, \u0111i\u1ec7n \u00e1p x\u1ea3 c\u1ee7a pin gi\u1ea3m khi nhi\u1ec7t \u0111\u1ed9 gi\u1ea3m. L\u1ea5y v\u00ed d\u1ee5 v\u1ec1 x\u1ea3 d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i 10A, so v\u1edbi 20\u2103 \u1edf 40\u2103, \u0111i\u1ec7n \u00e1p x\u1ea3 trung b\u00ecnh c\u1ee7a pin gi\u1ea3m 1V, t\u1ee9c l\u00e0 27% \u0111i\u1ec7n \u00e1p danh \u0111\u1ecbnh. Khi nhi\u1ec7t \u0111\u1ed9 gi\u1ea3m, d\u00f2ng \u0111i\u1ec7n t\u1ed1i \u0111a m\u00e0 pin c\u00f3 th\u1ec3 x\u1ea3 gi\u1ea3m d\u1ea7n. \u1ede -10\u2103, pin c\u00f3 th\u1ec3 x\u1ea3 \u1edf d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i 140A, \u1edf 0\u2103, c\u00f3 th\u1ec3 x\u1ea3 \u1edf d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i 70A, \u1edf -30\u2103, ch\u1ec9 c\u00f3 th\u1ec3 x\u1ea3 \u1edf d\u00f2ng \u0111i\u1ec7n 35A, v\u00e0 \u1edf -40\u2103, ch\u1ec9 c\u00f3 th\u1ec3 x\u1ea3 \u1edf d\u00f2ng \u0111i\u1ec7n nh\u1ecf 10A.<\/span><\/span><\/p>\n

Khi x\u1ea3 \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p v\u00e0 d\u00f2ng \u0111i\u1ec7n cao, \u0111\u01b0\u1eddng cong x\u1ea3 cho th\u1ea5y tr\u1ea1ng th\u00e1i phi tuy\u1ebfn t\u00ednh v\u1edbi h\u00ecnh d\u1ea1ng thung l\u0169ng v\u00e0 \u0111\u1ec9nh r\u00f5 r\u00e0ng, v\u00e0 \u0111i\u1ec7n \u00e1p x\u1ea3 dao \u0111\u1ed9ng m\u1ea1nh. L\u1ea5y d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i 70A l\u00e0m v\u00ed d\u1ee5, \u1edf 20 \u2103 v\u00e0 0 \u2103, \u0111\u01b0\u1eddng cong x\u1ea3 t\u01b0\u01a1ng \u0111\u1ed1i b\u00ecnh th\u01b0\u1eddng m\u00e0 kh\u00f4ng c\u00f3 thung l\u0169ng ho\u1eb7c \u0111\u1ec9nh.<\/span><\/span><\/p>\n

Khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng gi\u1ea3m xu\u1ed1ng -10\u2103, \u0111\u01b0\u1eddng cong x\u1ea3 cho th\u1ea5y h\u00ecnh d\u1ea1ng thung l\u0169ng v\u00e0 \u0111\u1ec9nh r\u00f5 r\u00e0ng. Khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng gi\u1ea3m xu\u1ed1ng -20\u2103, \u0111\u01b0\u1eddng cong x\u1ea3 cho th\u1ea5y h\u00ecnh d\u1ea1ng thung l\u0169ng v\u00e0 \u0111\u1ec9nh r\u00f5 r\u00e0ng, \u0110i\u1ec7n \u00e1p \u1edf c\u1ea3 hai \u0111\u1ea7u c\u1ee7a pin gi\u1ea3m t\u1eeb 4,15 tr\u01b0\u1edbc khi x\u1ea3 xu\u1ed1ng 3,07V v\u00e0 \u0111i\u1ec7n \u00e1p gi\u1ea3m \u0111\u1ea1t 1,08V.<\/span><\/span><\/p>\n

Sau \u0111\u00f3, \u0111i\u1ec7n \u00e1p b\u1eaft \u0111\u1ea7u t\u0103ng l\u00ean, \u0111\u1ea1t m\u1ee9c t\u1ed1i \u0111a l\u00e0 3,35V, sau \u0111\u00f3 b\u1eaft \u0111\u1ea7u gi\u1ea3m. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y trong qu\u00e1 tr\u00ecnh x\u1ea3 d\u00f2ng \u0111i\u1ec7n cao \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, c\u00e1c ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng trong pin kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ea7y \u0111\u1ee7 do nhi\u1ec7t \u0111\u1ed9 c\u1ee7a pin th\u1ea5p, d\u1eabn \u0111\u1ebfn ph\u00e2n c\u1ef1c \u0111i\u1ec7n c\u1ef1c nghi\u00eam tr\u1ecdng v\u00e0 \u0111i\u1ec7n tr\u1edf trong c\u1ee7a pin cao. Do \u0111\u00f3, trong giai \u0111o\u1ea1n x\u1ea3 s\u1edbm, \u0111i\u1ec7n \u00e1p x\u1ea3 c\u1ee7a pin gi\u1ea3m nhanh ch\u00f3ng.<\/span><\/span><\/p>\n

Khi qu\u00e1 tr\u00ecnh x\u1ea3 di\u1ec5n ra, do \u0111i\u1ec7n tr\u1edf trong c\u1ee7a pin cao, m\u1ed9t l\u01b0\u1ee3ng nhi\u1ec7t l\u1edbn \u0111\u01b0\u1ee3c sinh ra b\u00ean trong pin, khi\u1ebfn nhi\u1ec7t \u0111\u1ed9 c\u1ee7a pin t\u0103ng nhanh, k\u00edch ho\u1ea1t ph\u1ea7n v\u1eadt li\u1ec7u ho\u1ea1t \u0111\u1ed9ng c\u1ee7a pin. Do \u0111\u00f3, \u0111i\u1ec7n \u00e1p x\u1ea3 c\u1ee7a pin b\u1eaft \u0111\u1ea7u t\u0103ng. Khi nhi\u1ec7t \u0111\u1ed9 pin t\u0103ng, \u0111i\u1ec7n tr\u1edf trong c\u1ee7a pin b\u1eaft \u0111\u1ea7u gi\u1ea3m v\u00e0 nhi\u1ec7t sinh ra gi\u1ea3m. Khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng duy tr\u00ec \u1edf m\u1ee9c -20 \u2103 C, nhi\u1ec7t \u0111\u1ed9 c\u1ee7a pin gi\u1ea3m v\u00e0 \u0111i\u1ec7n \u00e1p x\u1ea3 c\u1ee7a pin c\u0169ng gi\u1ea3m.<\/span><\/span><\/p>\n

2.2 \u1ea2nh h\u01b0\u1edfng c\u1ee7a nhi\u1ec7t \u0111\u1ed9 th\u1ea5p \u0111\u1ebfn \u0111i\u1ec7n \u00e1p s\u1ea1c pin<\/span><\/span><\/strong><\/span><\/h2>\n

\u0110\u1ec3 nghi\u00ean c\u1ee9u t\u00e1c \u0111\u1ed9ng c\u1ee7a nhi\u1ec7t \u0111\u1ed9 th\u1ea5p \u0111\u1ebfn hi\u1ec7u su\u1ea5t s\u1ea1c pin, pin \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf c\u00e1c nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng kh\u00e1c nhau v\u00e0 \u0111\u01b0\u1ee3c s\u1ea1c \u1edf d\u00f2ng \u0111i\u1ec7n v\u00e0 \u0111i\u1ec7n \u00e1p kh\u00f4ng \u0111\u1ed5i v\u1edbi c\u00f9ng t\u1ed1c \u0111\u1ed9. \u0110\u1ea7u ti\u00ean, pin \u0111\u01b0\u1ee3c x\u1ea3 b\u1eb1ng d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i \u1edf t\u1ed1c \u0111\u1ed9 1\/3 C \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng, v\u1edbi \u0111i\u1ec7n \u00e1p ng\u1eaft l\u00e0 3V. Sau khi x\u1ea3, pin \u0111\u01b0\u1ee3c \u0111\u1ec3 trong bu\u1ed3ng nhi\u1ec7t \u0111\u1ed9 trong 5 gi\u1edd. Sau \u0111\u00f3, pin \u0111\u01b0\u1ee3c s\u1ea1c \u1edf m\u1ed9t t\u1ed1c \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh \u1edf c\u00e1c nhi\u1ec7t \u0111\u1ed9 kh\u00e1c nhau, v\u1edbi d\u00f2ng \u0111i\u1ec7n ng\u1eaft l\u00e0 1A \u0111\u1ed1i v\u1edbi s\u1ea1c 10A v\u00e0 3A \u0111\u1ed1i v\u1edbi s\u1ea1c 35 v\u00e0 70A.<\/span><\/span><\/p>\n

T\u1eeb c\u00e1c \u0111\u01b0\u1eddng cong s\u1ea1c \u1edf c\u00e1c nhi\u1ec7t \u0111\u1ed9 kh\u00e1c nhau, c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng so v\u1edbi \u0111\u1eb7c t\u00ednh x\u1ea3 c\u1ee7a pin nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, hi\u1ec7u su\u1ea5t s\u1ea1c c\u1ee7a pin gi\u1ea3m \u0111\u00e1ng k\u1ec3 h\u01a1n. D\u01b0\u1edbi 0 \u2103, pin kh\u00f4ng c\u00f2n c\u00f3 th\u1ec3 s\u1ea1c b\u00ecnh th\u01b0\u1eddng. V\u1edbi c\u00f9ng m\u1ed9t d\u00f2ng \u0111i\u1ec7n s\u1ea1c, khi nhi\u1ec7t \u0111\u1ed9 gi\u1ea3m, \u0111i\u1ec7n \u00e1p s\u1ea1c li\u00ean t\u1ee5c t\u0103ng trong giai \u0111o\u1ea1n s\u1ea1c d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong qu\u00e1 tr\u00ecnh s\u1ea1c d\u00f2ng \u0111i\u1ec7n cao. D\u01b0\u1edbi 0 \u2103, kh\u00f4ng c\u00f3 qu\u00e1 tr\u00ecnh s\u1ea1c d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i n\u00e0o c\u1ea3. T\u1ea1i th\u1eddi \u0111i\u1ec3m t\u1ea3i d\u00f2ng \u0111i\u1ec7n s\u1ea1c, \u0111i\u1ec7n \u00e1p c\u1ef1c c\u1ee7a pin t\u0103ng nhanh \u0111\u1ebfn \u0111i\u1ec7n \u00e1p c\u1eaft 4,2V, tr\u1ef1c ti\u1ebfp v\u00e0o giai \u0111o\u1ea1n s\u1ea1c \u0111i\u1ec7n \u00e1p kh\u00f4ng \u0111\u1ed5i.<\/span><\/span><\/p>\n

3 Nhi\u1ec7t \u0111\u1ed9 th\u1ea5p tr\u00ean \u0111i\u1ec7n dung s\u1ea1c v\u00e0 x\u1ea3 c\u1ee7a pin<\/span><\/span><\/strong><\/span><\/h1>\n

3.1 T\u00e1c \u0111\u1ed9ng c\u1ee7a nhi\u1ec7t \u0111\u1ed9 th\u1ea5p \u0111\u1ebfn kh\u1ea3 n\u0103ng x\u1ea3 pin<\/span><\/span><\/strong><\/span><\/h2>\n

\u0110\u1ec3 so s\u00e1nh m\u1ee9c \u0111\u1ed9 suy gi\u1ea3m c\u1ee7a dung l\u01b0\u1ee3ng x\u1ea3 pin \u1edf c\u00e1c nhi\u1ec7t \u0111\u1ed9 kh\u00e1c nhau, t\u1ef7 l\u1ec7 dung l\u01b0\u1ee3ng kh\u1ea3 d\u1ee5ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf \u0111\u00e2y. T\u1ef7 l\u1ec7 dung l\u01b0\u1ee3ng kh\u1ea3 d\u1ee5ng \u0111\u1ec1 c\u1eadp \u0111\u1ebfn t\u1ef7 l\u1ec7 gi\u1eefa dung l\u01b0\u1ee3ng x\u1ea3 pin v\u1edbi dung l\u01b0\u1ee3ng ghi tr\u00ean nh\u00e3n.<\/span><\/span><\/p>\n

\u1ede c\u00f9ng m\u1ed9t t\u1ed1c \u0111\u1ed9 x\u1ea3, khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng gi\u1ea3m, t\u1ef7 l\u1ec7 dung l\u01b0\u1ee3ng kh\u1ea3 d\u1ee5ng gi\u1ea3m nhanh ch\u00f3ng; Khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng gi\u1ea3m xu\u1ed1ng -20 \u2103, pin kh\u00f4ng th\u1ec3 x\u1ea3 \u1edf 4C; Khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng gi\u1ea3m xu\u1ed1ng 30 \u2103, t\u1ef7 l\u1ec7 dung l\u01b0\u1ee3ng kh\u1ea3 d\u1ee5ng \u0111\u1ec3 x\u1ea3 d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i \u1edf 10 A gi\u1ea3m xu\u1ed1ng 60,33% v\u00e0 pin kh\u00f4ng th\u1ec3 x\u1ea3 \u1edf 2C tr\u1edf l\u00ean; Khi nhi\u1ec7t \u0111\u1ed9 gi\u1ea3m xu\u1ed1ng -40 \u2103, t\u1ef7 l\u1ec7 dung l\u01b0\u1ee3ng kh\u1ea3 d\u1ee5ng \u0111\u1ec3 x\u1ea3 d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i \u1edf 10 A ch\u1ec9 l\u00e0 22,31% v\u00e0 kh\u00f4ng th\u1ec3 x\u1ea3 \u1edf 1 C tr\u1edf l\u00ean.<\/span><\/span><\/p>\n

3.2 T\u00e1c \u0111\u1ed9ng c\u1ee7a nhi\u1ec7t \u0111\u1ed9 th\u1ea5p \u0111\u1ebfn kh\u1ea3 n\u0103ng s\u1ea1c pin<\/span><\/span><\/strong><\/span><\/h2>\n

\u1ede c\u00f9ng m\u1ed9t t\u1ed1c \u0111\u1ed9 s\u1ea1c, khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng gi\u1ea3m, kh\u1ea3 n\u0103ng s\u1ea1c d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i c\u1ee7a pin gi\u1ea3m nhanh v\u00e0 s\u1ef1 suy gi\u1ea3m nghi\u00eam tr\u1ecdng h\u01a1n so v\u1edbi kh\u1ea3 n\u0103ng x\u1ea3 c\u00f3 s\u1eb5n; Khi nhi\u1ec7t \u0111\u1ed9 gi\u1ea3m xu\u1ed1ng 0 \u2103, s\u1ea1c \u1edf t\u1ed1c \u0111\u1ed9 1C v\u00e0 kh\u1ea3 n\u0103ng s\u1ea1c d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i ch\u1ec9 b\u1eb1ng 52,05% dung l\u01b0\u1ee3ng B\u1ea3ng t\u00ean; Kh\u1ea3 n\u0103ng s\u1ea1c d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i ch\u1ec9 b\u1eb1ng 42,55% dung l\u01b0\u1ee3ng B\u1ea3ng t\u00ean khi s\u1ea1c \u1edf 2C; Khi nhi\u1ec7t \u0111\u1ed9 gi\u1ea3m xu\u1ed1ng -10 \u2103, ch\u1ec9 c\u00f3 60,23% dung l\u01b0\u1ee3ng B\u1ea3ng t\u00ean c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1ea1c \u1edf d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i 10A v\u00e0 kh\u00f4ng th\u1ec3 s\u1ea1c \u1edf 1C v\u00e0 2C l\u1ea7n; Khi nhi\u1ec7t \u0111\u1ed9 d\u01b0\u1edbi -30 \u2103, pin kh\u00f4ng th\u1ec3 th\u1ef1c hi\u1ec7n s\u1ea1c d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i.<\/span><\/span><\/p>\n

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

(1) Trong <\/span><\/span>m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 th\u1ea5p<\/span><\/span><\/a> , d\u01b0\u1edbi c\u00f9ng m\u1ed9t t\u1ed1c \u0111\u1ed9 x\u1ea3, \u0111i\u1ec7n \u00e1p x\u1ea3 v\u00e0 dung l\u01b0\u1ee3ng x\u1ea3 c\u1ee7a pin \u0111i\u1ec7n lithium-ion gi\u1ea3m \u0111\u00e1ng k\u1ec3. So v\u1edbi x\u1ea3, hi\u1ec7u su\u1ea5t s\u1ea1c c\u1ee7a pin gi\u1ea3m \u0111\u00e1ng k\u1ec3 h\u01a1n, \u0111i\u1ec7n \u00e1p s\u1ea1c d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i c\u1ee7a pin t\u0103ng \u0111\u00e1ng k\u1ec3, trong khi dung l\u01b0\u1ee3ng s\u1ea1c gi\u1ea3m \u0111\u00e1ng k\u1ec3.<\/span><\/span><\/p>\n

(2) Khi nhi\u1ec7t \u0111\u1ed9 gi\u1ea3m, \u0111i\u1ec7n tr\u1edf b\u00ean trong c\u1ee7a pin trong qu\u00e1 tr\u00ecnh s\u1ea1c v\u00e0 x\u1ea3 t\u0103ng l\u00ean, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi nhi\u1ec7t \u0111\u1ed9 d\u01b0\u1edbi -20\u2103.<\/span><\/span><\/p>\n

(3) Qua ph\u00e2n t\u00edch ph\u1ea1m vi \u0111i\u1ec7n \u00e1p x\u1ea3 c\u1ee7a b\u1ed1n lo\u1ea1i pin, ng\u01b0\u1eddi ta th\u1ea5y r\u1eb1ng \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng, \u0111\u1ed9 \u0111\u1eb7c c\u1ee7a pin khi k\u1ebft th\u00fac qu\u00e1 tr\u00ecnh x\u1ea3 gi\u1ea3m d\u1ea7n, trong khi khi nhi\u1ec7t \u0111\u1ed9 gi\u1ea3m, \u0111\u1ed9 \u0111\u1eb7c c\u1ee7a pin trong to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh x\u1ea3 c\u0169ng gi\u1ea3m d\u1ea7n.<\/span><\/span><\/p>\n

(4) Trong th\u1ef1c t\u1ebf s\u1eed d\u1ee5ng, \u1edf m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, ph\u1ea3i s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng s\u01b0\u1edfi \u1ea5m \u0111\u1ec3 l\u00e0m n\u00f3ng b\u1ed9 pin \u0111i\u1ec7n nh\u1eb1m c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t c\u1ee7a n\u00f3.<\/span><\/span><\/p>\n

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

Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, xe \u0111i\u1ec7n \u0111\u00e3 \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 ph\u00e1t tri\u1ec3n ch\u01b0a t\u1eebng c\u00f3 v\u00e0 c\u00e1c qu\u1ed1c gia \u0111ang t\u00edch c\u1ef1c th\u1ef1c hi\u1ec7n c\u00f4ng t\u00e1c nghi\u00ean c\u1ee9u li\u00ean quan. Trong c\u00e1c lo\u1ea1i xe d\u00e2n d\u1ee5ng, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u00f4 t\u00f4 l\u1edbn ti\u1ebfp t\u1ee5c gi\u1edbi thi\u1ec7u c\u00e1c lo\u1ea1i xe \u0111i\u1ec7n hybrid ti\u00ean ti\u1ebfn<\/p>\n","protected":false},"author":1,"featured_media":19681,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[],"class_list":["post-19680","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\/19680","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=19680"}],"version-history":[{"count":1,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19680\/revisions"}],"predecessor-version":[{"id":21975,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19680\/revisions\/21975"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media\/19681"}],"wp:attachment":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=19680"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=19680"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=19680"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}