{"id":19646,"date":"2023-10-26T02:37:26","date_gmt":"2023-10-26T02:37:26","guid":{"rendered":"http:\/\/dgbellvietnam.com\/li-ion-battery-single-cell-temperature-test\/"},"modified":"2024-10-21T16:28:20","modified_gmt":"2024-10-21T09:28:20","slug":"li-ion-battery-single-cell-temperature-test","status":"publish","type":"post","link":"https:\/\/dgbellvietnam.com\/en\/li-ion-battery-single-cell-temperature-test\/","title":{"rendered":"Th\u1eed nghi\u1ec7m nhi\u1ec7t cell pin \u0111\u01a1n Li-ion"},"content":{"rendered":"
\n

Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u00f4 t\u00f4 l\u1edbn li\u00ean t\u1ee5c tung ra c\u00e1c lo\u1ea1i xe hybrid v\u00e0 xe \u0111i\u1ec7n thu\u1ea7n t\u00fay. Pin lithium ion \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i l\u00e0m pin \u0111i\u1ec7n do nh\u1eefng \u01b0u \u0111i\u1ec3m nh\u01b0 c\u00f4ng su\u1ea5t \u0111\u1ea7u ra cao, m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng cao, tu\u1ed5i th\u1ecd chu k\u1ef3 d\u00e0i v\u00e0 kh\u00f4ng c\u00f3 hi\u1ec7u \u1ee9ng nh\u1edb. Tuy nhi\u00ean, \u00f4 t\u00f4 l\u00e0 ph\u01b0\u01a1ng ti\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ecdi m\u00f4i tr\u01b0\u1eddng th\u1eddi ti\u1ebft, v\u1edbi \u0111i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng ph\u1ee9c t\u1ea1p v\u00e0 \u0111i\u1ec1u ki\u1ec7n l\u00e1i xe thay \u0111\u1ed5i. Pin lithium ion th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1ea1c v\u00e0 x\u1ea3 \u1edf c\u00e1c nhi\u1ec7t \u0111\u1ed9 v\u00e0 t\u1ed1c \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng kh\u00e1c nhau.<\/span><\/span><\/p>\n

Do \u0111\u00f3, \u0111\u1ec3 nghi\u00ean c\u1ee9u qu\u1ea3n l\u00fd nhi\u1ec7t c\u1ee7a pin \u0111i\u1ec7n, c\u1ea7n ph\u1ea3i nghi\u00ean c\u1ee9u t\u00e1c \u0111\u1ed9ng c\u1ee7a nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a pin. Do \u0111\u00f3, b\u00e0i vi\u1ebft n\u00e0y l\u1ea5y m\u1ed9t cell pin lithium s\u1eaft phosphate 50Ah l\u00e0m \u0111\u1ed1i t\u01b0\u1ee3ng nghi\u00ean c\u1ee9u v\u00e0 ti\u1ebfn h\u00e0nh c\u00e1c th\u00ed nghi\u1ec7m s\u1ea1c v\u00e0 x\u1ea3 trong ph\u1ea1m vi t\u1eeb -40 \u2103 \u0111\u1ebfn 40 \u2103 do h\u1ed9p nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng \u0111\u1ed5i cung c\u1ea5p \u0111\u1ec3 nghi\u00ean c\u1ee9u \u1ea3nh h\u01b0\u1edfng c\u1ee7a nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng \u0111\u1ebfn \u0111i\u1ec7n \u00e1p x\u1ea3, \u0111i\u1ec7n tr\u1edf trong v\u00e0 hi\u1ec7u su\u1ea5t nhi\u1ec7t \u0111\u1ed9 c\u1ee7a pin.<\/span><\/span><\/p>\n

1 Chu\u1ea9n b\u1ecb ki\u1ec3m tra<\/span><\/span><\/strong><\/span><\/h1>\n

Thi\u1ebft b\u1ecb s\u1ea1c v\u00e0 x\u1ea3 pin c\u00f3 \u0111i\u1ec7n \u00e1p s\u1ea1c v\u00e0 x\u1ea3 0-100V, d\u00f2ng \u0111i\u1ec7n s\u1ea1c v\u00e0 x\u1ea3 0-200A v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c th\u1eed nghi\u1ec7m l\u00e0 \u00b1 0,2%. Nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng \u0111\u01b0\u1ee3c duy tr\u00ec kh\u00f4ng \u0111\u1ed5i b\u1eb1ng <\/span><\/span>bu\u1ed3ng th\u1eed nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ea9m kh\u00f4ng \u0111\u1ed5i<\/span><\/span><\/a> . Ph\u1ea1m vi ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 c\u1ee7a thi\u1ebft b\u1ecb n\u00e0y l\u00e0 -55 \u2103 -150 \u2103, v\u1edbi kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 sai s\u1ed1 nh\u1ecf. S\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 c\u1ee7a pin trong qu\u00e1 tr\u00ecnh s\u1ea1c v\u00e0 x\u1ea3 \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng h\u1ec7 th\u1ed1ng thu th\u1eadp nhi\u1ec7t \u0111\u1ed9 t\u1ea1i c\u00e1c \u0111i\u1ec3m \u0111o kh\u00e1c nhau c\u1ee7a pin. Pin th\u1eed nghi\u1ec7m l\u00e0 pin lithium s\u1eaft phosphate c\u00e2n b\u1eb1ng n\u0103ng l\u01b0\u1ee3ng v\u00e0 c\u00f4ng su\u1ea5t 50Ah \u0111\u00f3ng g\u00f3i c\u1ee9ng.<\/span><\/span><\/p>\n

2 \u1ea2nh h\u01b0\u1edfng c\u1ee7a nhi\u1ec7t \u0111\u1ed9 \u0111\u1ebfn \u0111i\u1ec7n \u00e1p x\u1ea3 c\u1ee7a pin<\/span><\/span><\/strong><\/span><\/h1>\n

\u0110\u1ec3 nghi\u00ean c\u1ee9u hi\u1ec7u su\u1ea5t c\u1ee7a pin lithium-ion \u1edf c\u00e1c nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng kh\u00e1c nhau, s\u1ea1c d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng cho \u0111\u1ebfn khi \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111i\u1ec7n \u00e1p c\u1eaft. T\u1ed1c \u0111\u1ed9 trong qu\u00e1 tr\u00ecnh s\u1ea1c l\u00e0 0,3C v\u00e0 \u0111i\u1ec7n \u00e1p c\u1eaft \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh l\u00e0 365V. S\u1ea1c v\u1edbi \u0111i\u1ec7n \u00e1p kh\u00f4ng \u0111\u1ed5i 3,65V cho \u0111\u1ebfn khi d\u00f2ng \u0111i\u1ec7n s\u1ea1c nh\u1ecf h\u01a1n 1A v\u00e0 qu\u00e1 tr\u00ecnh s\u1ea1c k\u1ebft th\u00fac. Sau \u0111\u00f3 \u0111\u1eb7t pin v\u00e0o l\u00f2 nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng \u0111\u1ed5i v\u00e0 \u0111\u1ec3 y\u00ean trong 3 gi\u1edd. Cu\u1ed1i c\u00f9ng, th\u1ef1c hi\u1ec7n x\u1ea3 d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i \u1edf m\u1ed9t t\u1ed1c \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh cho \u0111\u1ebfn khi \u0111i\u1ec7n \u00e1p c\u1eaft l\u00e0 25V. Th\u1ef1c hi\u1ec7n x\u1ea3 d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i \u1edf 0,5C v\u00e0 1C trong m\u00f4i tr\u01b0\u1eddng l\u1ea7n l\u01b0\u1ee3t l\u00e0 -40 \u2103, -20 \u2103, 0 \u2103, 20 \u2103 v\u00e0 40 \u2103.<\/span><\/span><\/p>\n

Qua so s\u00e1nh d\u1eef li\u1ec7u, c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng khi \u0111i\u1ec1u ki\u1ec7n t\u1ed1c \u0111\u1ed9 x\u1ea3 c\u1ee7a pin gi\u1ed1ng nhau, nhi\u1ec7t \u0111\u1ed9 gi\u1ea3m d\u1ea7n s\u1ebd d\u1eabn \u0111\u1ebfn \u0111i\u1ec7n \u00e1p gi\u1ea3m d\u1ea7n trong qu\u00e1 tr\u00ecnh x\u1ea3. V\u00e0 c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng trong ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 t\u1eeb 0 \u2103 \u0111\u1ebfn 40 \u2103, xu h\u01b0\u1edbng \u0111i\u1ec7n \u00e1p trong qu\u00e1 tr\u00ecnh x\u1ea3 l\u00e0 nh\u1eb9 nh\u00e0ng v\u00e0 ch\u1eadm, trong khi d\u01b0\u1edbi 0 \u2103, \u0111i\u1ec7n \u00e1p x\u1ea3 gi\u1ea3m \u0111\u00e1ng k\u1ec3 v\u00e0 \u1edf -40 \u2103, pin kh\u00f4ng c\u00f2n c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng. Khi pin \u0111\u01b0\u1ee3c x\u1ea3 \u1edf 1C trong m\u00f4i tr\u01b0\u1eddng -20 \u2103, m\u1ed9t h\u00ecnh d\u1ea1ng b\u01b0\u1edbc k\u00e9p r\u00f5 r\u00e0ng xu\u1ea5t hi\u1ec7n tr\u00ean \u0111\u01b0\u1eddng cong x\u1ea3 v\u00e0 \u0111i\u1ec7n \u00e1p x\u1ea3 c\u1ef1c \u0111\u1ea1i \u0111\u1ea1t \u0111\u01b0\u1ee3c \u1edf 20 \u2103.<\/span><\/span><\/p>\n

3 \u1ea2nh h\u01b0\u1edfng c\u1ee7a nhi\u1ec7t \u0111\u1ed9 \u0111\u1ebfn \u0111i\u1ec7n tr\u1edf trong AC c\u1ee7a pin<\/span><\/span><\/strong><\/span><\/h1>\n

Khi \u0111o \u0111i\u1ec7n tr\u1edf trong AC c\u1ee7a pin, m\u1ed9t \u0111i\u1ec7n \u00e1p ho\u1eb7c d\u00f2ng \u0111i\u1ec7n nh\u1ecf c\u00f3 t\u1ea7n s\u1ed1 nh\u1ea5t \u0111\u1ecbnh \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho c\u00e1c c\u1ef1c d\u01b0\u01a1ng v\u00e0 c\u1ef1c \u00e2m c\u1ee7a pin v\u00e0 gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf trong thu \u0111\u01b0\u1ee3c d\u1ef1a tr\u00ean ph\u1ea3n \u1ee9ng c\u1ee7a \u0111i\u1ec7n \u00e1p ho\u1eb7c d\u00f2ng \u0111i\u1ec7n n\u00e0y. Trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m, \u0111i\u1ec7n \u00e1p c\u1ee7a t\u00edn hi\u1ec7u \u0111o \u0111\u01b0\u1ee3c l\u00e0 5mV, t\u1ea7n s\u1ed1 l\u00e0 1kHz v\u00e0 th\u1eddi gian \u0111o l\u00e0 6 gi\u1edd. T\u1eeb d\u1eef li\u1ec7u, c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng trong m\u1ed9t ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh, \u0111i\u1ec7n tr\u1edf trong c\u1ee7a pin lh ban \u0111\u1ea7u \u0111\u01b0\u1ee3c s\u1ea1c \u0111\u1ea7y t\u0103ng nhanh theo th\u1eddi gian v\u00e0 sau \u0111\u00f3 gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf v\u1ec1 c\u01a1 b\u1ea3n v\u1eabn \u1ed5n \u0111\u1ecbnh. Do \u0111\u00f3, vi\u1ec7c pin \u0111\u01a1n trong th\u00ed nghi\u1ec7m \u0111\u1ea1t tr\u1ea1ng th\u00e1i \u1ed5n \u0111\u1ecbnh khi \u0111\u1ec3 trong l\u00f2 nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng \u0111\u1ed5i trong 2 gi\u1edd tr\u1edf l\u00ean \u0111\u01b0\u1ee3c coi l\u00e0 ph\u00f9 h\u1ee3p.<\/span><\/span><\/p>\n

4 \u0110\u1eb7c t\u00ednh t\u0103ng nhi\u1ec7t \u0111\u1ed9 c\u1ee7a pin \u0111\u01a1n<\/span><\/span><\/strong><\/span><\/h1>\n

\u0110\u1ec3 nghi\u00ean c\u1ee9u s\u1ef1 gia t\u0103ng nhi\u1ec7t \u0111\u1ed9 c\u1ee7a pin m\u1ed9t cell trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng kh\u00e1c nhau, c\u00e1c th\u00ed nghi\u1ec7m x\u1ea3 \u0111\u00e3 \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh b\u1eb1ng ba ph\u01b0\u01a1ng ph\u00e1p: 0,5C, 1C v\u00e0 2C. S\u1ea1c pin \u1edf t\u1ed1c \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i l\u00e0 0,3C trong m\u00f4i tr\u01b0\u1eddng 25 \u2103. Khi \u0111i\u1ec7n \u00e1p \u0111\u1ea1t \u0111\u1ebfn \u0111i\u1ec7n \u00e1p c\u1eaft tr\u00ean l\u00e0 3,65 V, h\u00e3y s\u1ea1c pin \u1edf \u0111i\u1ec7n \u00e1p kh\u00f4ng \u0111\u1ed5i l\u00e0 3,65 V cho \u0111\u1ebfn khi d\u00f2ng \u0111i\u1ec7n s\u1ea1c nh\u1ecf h\u01a1n 1A v\u00e0 qu\u00e1 tr\u00ecnh s\u1ea1c k\u1ebft th\u00fac. Sau \u0111\u00f3, \u0111\u1eb7t pin v\u00e0o l\u00f2 nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng \u0111\u1ed5i v\u00e0 \u0111\u1ec3 y\u00ean trong 3 gi\u1edd. Sau \u0111\u00f3, ti\u1ebfn h\u00e0nh x\u1ea3 d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i \u1edf t\u1ed1c \u0111\u1ed9 0,5C, 1C v\u00e0 2C v\u00e0 t\u00f3m t\u1eaft \u0111\u01b0\u1eddng cong thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 c\u1ee7a m\u1ed9t trong c\u00e1c \u0111i\u1ec3m \u0111o \u1edf t\u1ed1c \u0111\u1ed9 x\u1ea3 0,5C, 1C v\u00e0 2C.<\/span><\/span><\/p>\n

Khi t\u1ed1c \u0111\u1ed9 x\u1ea3 t\u0103ng, t\u1ed1c \u0111\u1ed9 t\u0103ng nhi\u1ec7t \u0111\u1ed9 tr\u00ean b\u1ec1 m\u1eb7t pin t\u0103ng, th\u1eddi gian x\u1ea3 gi\u1ea3m v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a qu\u00e1 tr\u00ecnh x\u1ea3 gi\u1ea3m d\u1ea7n. N\u1ebfu c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t nh\u1ecf v\u1ec1 hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c pin ri\u00eang l\u1ebb kh\u00e1c nhau trong b\u1ed9 pin, s\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng ph\u00e2n ph\u1ed1i nhi\u1ec7t trong m\u00f4-\u0111un ch\u1eafc ch\u1eafn s\u1ebd t\u0103ng l\u00ean. V\u00e0o cu\u1ed1i qu\u00e1 tr\u00ecnh x\u1ea3 trong th\u00ed nghi\u1ec7m n\u00e0y, nhi\u1ec7t \u0111\u1ed9 c\u1ee7a \u0111i\u1ec3m 3 \u1edf t\u1ed1c \u0111\u1ed9 x\u1ea3 0,5C, 1C v\u00e0 2C l\u1ea7n l\u01b0\u1ee3t l\u00e0 39,40 \u2103, 42,39 \u2103 v\u00e0 53,84 \u2103.<\/span><\/span><\/p>\n

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

B\u00e0i vi\u1ebft n\u00e0y thi\u1ebft l\u1eadp m\u1ed9t n\u1ec1n t\u1ea3ng th\u1eed nghi\u1ec7m s\u1ea1c v\u00e0 x\u1ea3 pin lithium-ion \u0111\u01a1n l\u1ebb, v\u00e0 ti\u1ebfn h\u00e0nh c\u00e1c \u0111i\u1ec1u ki\u1ec7n s\u1ea1c d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i, sau \u0111\u00f3 l\u00e0 \u0111i\u1ec1u ki\u1ec7n s\u1ea1c \u0111i\u1ec7n \u00e1p kh\u00f4ng \u0111\u1ed5i v\u00e0 c\u00e1c \u0111i\u1ec1u ki\u1ec7n x\u1ea3 d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i \u1edf c\u00e1c nhi\u1ec7t \u0111\u1ed9 v\u00e0 t\u1ed1c \u0111\u1ed9 kh\u00e1c nhau. Nghi\u00ean c\u1ee9u \u1ea3nh h\u01b0\u1edfng c\u1ee7a c\u00e1c nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng kh\u00e1c nhau \u0111\u1ebfn \u0111i\u1ec7n \u00e1p x\u1ea3, \u0111i\u1ec7n tr\u1edf trong v\u00e0 \u0111\u1eb7c t\u00ednh t\u0103ng nhi\u1ec7t \u0111\u1ed9 c\u1ee7a pin.<\/span><\/span><\/p>\n

Nhi\u1ec7t \u0111\u1ed9 l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111i\u1ec7n \u00e1p s\u1ea1c v\u00e0 x\u1ea3 c\u1ee7a pin. Trong c\u00f9ng \u0111i\u1ec1u ki\u1ec7n t\u1ed1c \u0111\u1ed9 x\u1ea3, \u0111i\u1ec7n \u00e1p x\u1ea3 v\u1ec1 c\u01a1 b\u1ea3n gi\u1ea3m khi nhi\u1ec7t \u0111\u1ed9 gi\u1ea3m. \u0110\u1ed1i v\u1edbi pin lithium-ion, nhi\u1ec7t \u0111\u1ed9 th\u00edch h\u1ee3p c\u00f3 th\u1ec3 th\u00fac \u0111\u1ea9y ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc, t\u0103ng t\u1ed1c \u0111\u1ed9 ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc c\u1ee7a pin v\u00e0 th\u00fac \u0111\u1ea9y t\u1ed1c \u0111\u1ed9 bay h\u01a1i c\u1ee7a ch\u1ea5t \u0111i\u1ec7n ph\u00e2n.<\/span><\/span><\/p>\n

Trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, hi\u1ec7u su\u1ea5t s\u1ea1c v\u00e0 x\u1ea3 c\u1ee7a pin lithium-ion ti\u1ebfp t\u1ee5c gi\u1ea3m. Xu h\u01b0\u1edbng t\u0103ng nhi\u1ec7t \u0111\u1ed9 thay \u0111\u1ed5i theo c\u00e1c t\u1ed1c \u0111\u1ed9 x\u1ea3 kh\u00e1c nhau v\u00e0 khi t\u1ed1c \u0111\u1ed9 x\u1ea3 t\u0103ng, nhi\u1ec7t l\u01b0\u1ee3ng sinh ra v\u00e0 t\u1ed1c \u0111\u1ed9 c\u1ee7a pin c\u0169ng t\u0103ng. Khi d\u00f2ng \u0111i\u1ec7n x\u1ea3 t\u0103ng, ph\u1ea3n \u1ee9ng \u0111i\u1ec7n h\u00f3a b\u00ean trong pin t\u0103ng c\u01b0\u1eddng, khi\u1ebfn nhi\u1ec7t \u0111\u1ed9 b\u00ean trong v\u00e0 ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9 c\u1ee5c b\u1ed9 tr\u00ean b\u1ec1 m\u1eb7t pin t\u0103ng d\u1ea7n, d\u1eabn \u0111\u1ebfn th\u1eddi gian x\u1ea3 ng\u1eafn h\u01a1n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh x\u1ea3 gi\u1ea3m d\u1ea7n<\/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, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u00f4 t\u00f4 l\u1edbn li\u00ean t\u1ee5c tung ra c\u00e1c lo\u1ea1i xe hybrid v\u00e0 xe \u0111i\u1ec7n thu\u1ea7n t\u00fay. Pin lithium ion \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i l\u00e0m pin \u0111i\u1ec7n do nh\u1eefng \u01b0u \u0111i\u1ec3m nh\u01b0 c\u00f4ng su\u1ea5t \u0111\u1ea7u ra cao, m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng cao, tu\u1ed5i th\u1ecd chu k\u1ef3<\/p>\n","protected":false},"author":1,"featured_media":19647,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[],"class_list":["post-19646","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\/19646","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=19646"}],"version-history":[{"count":2,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19646\/revisions"}],"predecessor-version":[{"id":21953,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19646\/revisions\/21953"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media\/19647"}],"wp:attachment":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=19646"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=19646"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=19646"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}