{"id":19698,"date":"2023-05-18T09:54:08","date_gmt":"2023-05-18T09:54:08","guid":{"rendered":"http:\/\/dgbellvietnam.com\/temperature-and-discharge-test-for-li-ion-battery\/"},"modified":"2024-10-21T20:47:26","modified_gmt":"2024-10-21T13:47:26","slug":"temperature-and-discharge-test-for-li-ion-battery","status":"publish","type":"post","link":"https:\/\/dgbellvietnam.com\/en\/temperature-and-discharge-test-for-li-ion-battery\/","title":{"rendered":"Th\u1eed nghi\u1ec7m nhi\u1ec7t \u0111\u1ed9 v\u00e0 x\u1ea3 pin Li-ion"},"content":{"rendered":"
\n

Ph\u00e2n t\u00edch t\u00ecnh tr\u1ea1ng \u1ee9ng d\u1ee5ng hi\u1ec7n t\u1ea1i c\u1ee7a pin lithium-ion<\/span><\/span><\/p>\n

Ng\u00e0nh c\u00f4ng nghi\u1ec7p \u00f4 t\u00f4 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng \u0111\u00e3 mang l\u1ea1i s\u1ef1 ti\u1ec7n l\u1ee3i cho con ng\u01b0\u1eddi, trong khi kh\u00ed th\u1ea3i c\u1ee7a n\u00f3 \u0111\u00e3 tr\u1edf th\u00e0nh th\u1ee7 ph\u1ea1m ch\u00ednh g\u00e2y \u00f4 nhi\u1ec5m kh\u00f4ng kh\u00ed \u0111\u00f4 th\u1ecb. M\u1eb7t kh\u00e1c, v\u1edbi t\u01b0 c\u00e1ch l\u00e0 ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng kh\u00f4ng t\u00e1i t\u1ea1o, m\u1ee9c ti\u00eau th\u1ee5 d\u1ea7u v\u00e0 kh\u00ed \u0111\u1ed1t t\u1ef1 nhi\u00ean \u0111ang d\u1ea7n t\u0103ng l\u00ean v\u00e0 cu\u1ed1i c\u00f9ng s\u1ebd c\u1ea1n ki\u1ec7t trong t\u01b0\u01a1ng lai g\u1ea7n. B\u1ea3o t\u1ed3n n\u0103ng l\u01b0\u1ee3ng v\u00e0 b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng \u0111\u00e3 tr\u1edf th\u00e0nh nh\u1eefng v\u1ea5n \u0111\u1ec1 x\u00e3 h\u1ed9i r\u1ea5t n\u1ed5i b\u1eadt.<\/span><\/span><\/p>\n

Xe \u0111i\u1ec7n (EVS) v\u00e0 xe \u0111i\u1ec7n hybrid (HEVS) \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n \u0111\u1ec3 gi\u1ea3m m\u1ee9c ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng v\u00e0 \u00f4 nhi\u1ec5m do xe ch\u1ea1y b\u1eb1ng nhi\u00ean li\u1ec7u g\u00e2y ra. C\u00e1c lo\u1ea1i pin n\u0103ng l\u01b0\u1ee3ng ti\u00ean ti\u1ebfn hi\u1ec7n \u0111ang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong xe \u0111i\u1ec7n ch\u1ee7 y\u1ebfu bao g\u1ed3m pin n\u0103ng l\u01b0\u1ee3ng niken hydro v\u00e0 pin n\u0103ng l\u01b0\u1ee3ng lithium-ion. Pin lithium-ion c\u00f3 n\u0103ng l\u01b0\u1ee3ng ri\u00eang cao, tu\u1ed5i th\u1ecd d\u00e0i v\u00e0 c\u00f4ng su\u1ea5t ri\u00eang cao. V\u1edbi vi\u1ec7c gi\u1ea3m chi ph\u00ed, ch\u00fang s\u1ebd d\u1ea7n thay th\u1ebf pin niken hydro hi\u1ec7n t\u1ea1i l\u00e0m h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng ch\u00ednh cho xe \u0111i\u1ec7n. T\u00ednh kh\u1ea3 thi v\u1ec1 m\u1eb7t kinh t\u1ebf c\u1ee7a HEV v\u00e0 EV trong c\u1ea1nh tranh th\u1ecb tr\u01b0\u1eddng l\u00e0 m\u1ed9t kh\u00eda c\u1ea1nh quan tr\u1ecdng. Vi\u1ec7c \u01b0\u1edbc t\u00ednh ch\u00ednh x\u00e1c v\u00e0 theo th\u1eddi gian th\u1ef1c tr\u1ea1ng th\u00e1i s\u1ea1c pin (SOC) c\u00f3 t\u00e1c \u0111\u1ed9ng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn t\u00ednh kh\u1ea3 thi v\u1ec1 m\u1eb7t kinh t\u1ebf c\u1ee7a xe hybrid.<\/span><\/span><\/p>\n

V\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng c\u1ee7a pin lithium-ion ch\u1ee7 y\u1ebfu bao g\u1ed3m lithium mangan oxit, lithium s\u1eaft phosphate v\u00e0 niken coban lithium mangan oxit ba th\u00e0nh ph\u1ea7n. So v\u1edbi hai v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng kh\u00e1c, v\u1eadt li\u1ec7u ba th\u00e0nh ph\u1ea7n c\u00f3 \u0111i\u1ec7n \u00e1p n\u1ec1n t\u1ea3ng, dung l\u01b0\u1ee3ng ri\u00eang v\u00e0 m\u1eadt \u0111\u1ed9 n\u00e9n cao h\u01a1n, quy\u1ebft \u0111\u1ecbnh m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng c\u1ee7a pin s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng n\u00e0y. N\u1ebfu hi\u1ec7u su\u1ea5t an to\u00e0n c\u1ee7a pin lithium-ion ba th\u00e0nh ph\u1ea7n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u1edf m\u1ed9t m\u1ee9c \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh, ch\u00fang s\u1ebd c\u00f3 kh\u00f4ng gian \u1ee9ng d\u1ee5ng tuy\u1ec7t v\u1eddi trong xe \u0111i\u1ec7n v\u00e0 h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n.<\/span><\/span><\/p>\n

2 \u0110\u1ed1i t\u01b0\u1ee3ng th\u1eed nghi\u1ec7m v\u00e0 N\u1ec1n t\u1ea3ng th\u1eed nghi\u1ec7m<\/span><\/span><\/strong><\/span><\/h1>\n

\u0110\u1ed1i t\u01b0\u1ee3ng th\u1eed nghi\u1ec7m: pin lithium-ion 18650 h\u00ecnh tr\u1ee5. Thu th\u1eadp c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m c\u01a1 b\u1ea3n c\u1ee7a n\u00f3. C\u00e1c th\u00f4ng s\u1ed1 c\u01a1 b\u1ea3n c\u1ee7a pin m\u1ed9t cell l\u00e0: dung l\u01b0\u1ee3ng danh ngh\u0129a 20Ah, \u0111i\u1ec7n \u00e1p danh ngh\u0129a 37V v\u00e0 kh\u1ed1i l\u01b0\u1ee3ng 41g.<\/span><\/span><\/p>\n

N\u1ec1n t\u1ea3ng th\u1eed nghi\u1ec7m pin v\u00e0 m\u00f4-\u0111un c\u00f3 th\u1ec3 m\u00f4 ph\u1ecfng \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh c\u1ee7a xe, thu th\u1eadp d\u1eef li\u1ec7u th\u1eed nghi\u1ec7m trong qu\u00e1 tr\u00ecnh s\u1ea1c v\u00e0 x\u1ea3 m\u00f4-\u0111un, \u0111\u1ed3ng th\u1eddi x\u00e1c minh hi\u1ec7u qu\u1ea3 c\u1ee7a thi\u1ebft k\u1ebf c\u1ea5u tr\u00fac m\u00f4-\u0111un v\u00e0 thi\u1ebft k\u1ebf BMS.<\/span><\/span><\/p>\n

N\u1ec1n t\u1ea3ng th\u1eed nghi\u1ec7m \u0111\u01b0\u1ee3c chia th\u00e0nh 5 ph\u1ea7n: thi\u1ebft b\u1ecb s\u1ea1c v\u00e0 x\u1ea3 pin, <\/span><\/span>bu\u1ed3ng nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng \u0111\u1ed5i<\/span><\/span><\/a> , th\u1ebb thu th\u1eadp d\u1eef li\u1ec7u pin, m\u00e1y t\u00ednh ghi v\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u pin v\u00e0 \u0111i\u1ec1u khi\u1ec3n, v\u00e0 m\u00f4-\u0111un pin c\u1ea7n th\u1eed nghi\u1ec7m. M\u00e1y t\u00ednh thu th\u1eadp v\u00e0 ghi l\u1ea1i th\u00f4ng tin pin (\u0111i\u1ec7n \u00e1p, nhi\u1ec7t \u0111\u1ed9, d\u00f2ng \u0111i\u1ec7n) th\u00f4ng qua t\u01b0\u01a1ng t\u00e1c d\u1eef li\u1ec7u v\u1edbi th\u1ebb thu th\u1eadp d\u1eef li\u1ec7u. Ph\u1ea7n m\u1ec1m ph\u00e2n t\u00edch d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c nh\u00fang trong m\u00f4 h\u00ecnh pin s\u1ebd ph\u00e2n t\u00edch tr\u1ea1ng th\u00e1i pin v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p s\u1ea1c t\u01b0\u01a1ng \u1ee9ng, \u0111\u1ed3ng th\u1eddi \u0111i\u1ec1u khi\u1ec3n \u0111\u1ea7u ra c\u1ee7a \u0111\u1ed9ng c\u01a1 s\u1ea1c v\u00e0 x\u1ea3 theo \u0111\u00f3. H\u1ed9p nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng \u0111\u1ed5i cung c\u1ea5p c\u00e1c \u0111i\u1ec1u ki\u1ec7n tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 \u0111\u1ec3 th\u1eed nghi\u1ec7m pin, v\u00e0 \u0111\u1ed9ng c\u01a1 s\u1ea1c v\u00e0 x\u1ea3 cung c\u1ea5p ngu\u1ed3n \u0111i\u1ec7n v\u00e0 t\u1ea3i cho pin.<\/span><\/span><\/p>\n

3 Th\u1eed nghi\u1ec7m \u0111i\u1ec7n \u00e1p SOC v\u00e0 m\u1ea1ch h\u1edf<\/span><\/span><\/strong><\/span><\/h1>\n

3.1 Th\u1eed nghi\u1ec7m pin \u0111\u01a1n<\/span><\/span><\/strong><\/span><\/h2>\n

\u0110i\u1ec7n \u00e1p m\u1ea1ch h\u1edf c\u1ee7a pin (\u0110i\u1ec7n \u00e1p m\u1ea1ch h\u1edf, OCV c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 hi\u1ec7u chu\u1ea9n tr\u1ea1ng th\u00e1i s\u1ea1c c\u1ee7a pin, \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c c\u1ea3i thi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a \u01b0\u1edbc t\u00ednh SOC. Ch\u00edn pin lithium-ion \u0111\u01a1n cell 18650 h\u00ecnh tr\u1ee5 \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ecdn \u0111\u1ec3 th\u1eed nghi\u1ec7m SOC v\u00e0 OCV. Quy tr\u00ecnh th\u1eed nghi\u1ec7m l\u00e0: pin lithium-ion \u0111\u01b0\u1ee3c s\u1ea1c \u0111\u1ea7y v\u00e0 \u0111\u1eb7t c\u1ed1 \u0111\u1ecbnh cho \u0111\u1ebfn khi pin \u1ed5n \u0111\u1ecbnh; x\u1ea3 \u1edf d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o SOC t\u01b0\u01a1ng \u1ee9ng v\u1edbi m\u1ed7i l\u1ea7n x\u1ea3 l\u00e0 0,05 v\u00e0 kho\u1ea3ng th\u1eddi gian gi\u1eefa hai l\u1ea7n x\u1ea3 l\u00e0 1 gi\u1edd \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o pin \u0111\u1ea1t \u0111\u1ebfn tr\u1ea1ng th\u00e1i \u1ed5n \u0111\u1ecbnh. \u0110\u1ed3ng th\u1eddi Ghi l\u1ea1i \u0111i\u1ec7n \u00e1p m\u1ea1ch h\u1edf c\u1ee7a b\u1ed9 pin. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn \u0111i\u1ec7n \u00e1p m\u1ea1ch h\u1edf c\u1ee7a 21 tr\u1ea1ng th\u00e1i SOC v\u1edbi SOC n\u1eb1m trong kho\u1ea3ng t\u1eeb 1, 0,95, 0,90, 0,85, 0,80,\u2026, 0,10, 0,05 v\u00e0 0.<\/span><\/span><\/p>\n

C\u00f3 th\u1ec3 th\u1ea5y t\u1eeb th\u00ed nghi\u1ec7m r\u1eb1ng m\u1ed1i quan h\u1ec7 gi\u1eefa monome 18650 SOC v\u00e0 OCV g\u1ea7n nh\u01b0 tuy\u1ebfn t\u00ednh v\u1edbi t\u00ednh nh\u1ea5t qu\u00e1n t\u1ed1t. Do \u0111\u00f3, \u0111i\u1ec7n \u00e1p m\u1ea1ch h\u1edf c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u01b0\u1edbc t\u00ednh tr\u1ea1ng th\u00e1i s\u1ea1c c\u1ee7a pin. \u0110\u1eb7c bi\u1ec7t l\u00e0 sau khi xe \u0111i\u1ec7n \u0111\u00e3 \u0111\u1ed7 trong m\u1ed9t kho\u1ea3ng th\u1eddi gian, \u0111i\u1ec7n \u00e1p m\u1ea1ch h\u1edf c\u00f3 t\u00e1c d\u1ee5ng t\u1ed1t trong vi\u1ec7c \u01b0\u1edbc t\u00ednh tr\u1ea1ng th\u00e1i s\u1ea1c ban \u0111\u1ea7u c\u1ee7a pin \u0111i\u1ec7n.<\/span><\/span><\/p>\n

3.2 Th\u1eed nghi\u1ec7m pack pin<\/span><\/span><\/strong><\/span><\/h2>\n

18650 cell \u0111\u01b0\u1ee3c ch\u1ecdn \u0111\u1ec3 t\u1ea1o th\u00e0nh hai nh\u00f3m th\u00f4ng qua 5 chu\u1ed7i song song 10 \u0111\u1ec3 ki\u1ec3m tra m\u1ed1i quan h\u1ec7 gi\u1eefa tr\u1ea1ng th\u00e1i s\u1ea1c v\u00e0 \u0111i\u1ec7n \u00e1p m\u1ea1ch h\u1edf. Qu\u00e1 tr\u00ecnh ki\u1ec3m tra ph\u00f9 h\u1ee3p v\u1edbi qu\u00e1 tr\u00ecnh ki\u1ec3m tra pin \u0111\u01a1n. Do t\u00ednh nh\u1ea5t qu\u00e1n t\u1ed1t c\u1ee7a c\u00e1c monome v\u00e0 s\u1ef1 l\u1ef1a ch\u1ecdn k\u1ebft h\u1ee3p, b\u1ed9 pin c\u0169ng c\u00f3 th\u1ec3 duy tr\u00ec t\u00ednh nh\u1ea5t qu\u00e1n t\u1ed1t.<\/span><\/span><\/p>\n

4 Dung l\u01b0\u1ee3ng c\u1ee7a Pin \u0111\u01a1n<\/span><\/span><\/strong><\/span><\/h1>\n

Do th\u1ef1c t\u1ebf l\u00e0 xe \u0111i\u1ec7n y\u00eau c\u1ea7u pin \u0111i\u1ec7n cung c\u1ea5p c\u00f4ng su\u1ea5t ri\u00eang t\u01b0\u01a1ng \u0111\u1ed1i cao trong qu\u00e1 tr\u00ecnh leo d\u1ed1c, kh\u1edfi \u0111\u1ed9ng v\u00e0 t\u0103ng t\u1ed1c, t\u1ee9c l\u00e0 x\u1ea3 \u0111\u1ee7 d\u00f2ng \u0111i\u1ec7n \u0111\u1ec3 cung c\u1ea5p \u0111\u1ee7 c\u00f4ng su\u1ea5t. B\u00e0i vi\u1ebft n\u00e0y \u0111\u00e3 ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m x\u1ea3 tr\u00ean pin lithium-ion \u1edf m\u1ee9c 0IC, 0,5C v\u00e0 1C<\/span><\/span><\/p>\n

T\u1eeb k\u1ebft qu\u1ea3 th\u1ef1c nghi\u1ec7m, c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng khi d\u00f2ng \u0111i\u1ec7n x\u1ea3 c\u1ee7a pin t\u0103ng, dung l\u01b0\u1ee3ng x\u1ea3 c\u1ee7a pin gi\u1ea3m. \u0110i\u1ec1u n\u00e0y l\u00e0 do khi d\u00f2ng \u0111i\u1ec7n x\u1ea3 t\u0103ng, \u0111\u1ed9 ph\u00e2n c\u1ef1c n\u1ed3ng \u0111\u1ed9 b\u00ean trong pin t\u0103ng, v\u00e0 \u0111\u1ed9 s\u1ee5t \u00e1p do \u0111i\u1ec7n tr\u1edf b\u00ean trong v\u1ed1n c\u00f3 c\u1ee7a pin c\u0169ng t\u0103ng, d\u1eabn \u0111\u1ebfn dung l\u01b0\u1ee3ng x\u1ea3 c\u1ee7a pin gi\u1ea3m t\u01b0\u01a1ng \u1ee9ng.<\/span><\/span><\/p>\n

5 Dung l\u01b0\u1ee3ng pin<\/span><\/span><\/strong><\/span><\/h1>\n

Do nh\u1eefng thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 trong \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c c\u1ee7a \u00f4 t\u00f4, b\u00e0i vi\u1ebft n\u00e0y \u0111\u00e3 ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m x\u1ea3 tr\u00ean pin lithium-ion \u1edf nhi\u1ec7t \u0111\u1ed9 -30, -20, -10, 0, 10, 30, 45 v\u00e0 55 \u2103 \u1edf 0,5 \u2103. T\u1eeb k\u1ebft qu\u1ea3 th\u1ef1c nghi\u1ec7m, c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng khi nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c c\u1ee7a pin t\u0103ng l\u00ean, kh\u1ea3 n\u0103ng x\u1ea3 t\u0103ng \u0111\u00e1ng k\u1ec3. \u0110i\u1ec1u n\u00e0y l\u00e0 do t\u1ed1c \u0111\u1ed9 khu\u1ebfch t\u00e1n ch\u1eadm c\u1ee7a c\u00e1c ion lithium trong pin \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, \u0111i\u1ec1u n\u00e0y l\u00e0m t\u0103ng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a pin khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng. Tuy nhi\u00ean, khi th\u1eddi gian c\u00e1ch \u0111i\u1ec7n t\u0103ng l\u00ean, nhi\u1ec7t \u0111\u1ed9 chung c\u1ee7a pin t\u0103ng l\u00ean, khi\u1ebfn ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ion d\u1ea7n tr\u1edf n\u00ean h\u1ed7n lo\u1ea1n, d\u1eabn \u0111\u1ebfn \u0111i\u1ec7n tr\u1edf trong t\u0103ng l\u00ean v\u00e0 thay \u0111\u1ed5i kh\u1ea3 n\u0103ng x\u1ea3 gi\u1ea3m.<\/span><\/span><\/p>\n

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

B\u00e0i vi\u1ebft n\u00e0y nghi\u00ean c\u1ee9u m\u1ed1i quan h\u1ec7 gi\u1eefa tr\u1ea1ng th\u00e1i s\u1ea1c v\u00e0 \u0111i\u1ec7n \u00e1p m\u1ea1ch h\u1edf, t\u1ed1c \u0111\u1ed9 x\u1ea3 v\u00e0 dung l\u01b0\u1ee3ng, dung l\u01b0\u1ee3ng v\u00e0 nhi\u1ec7t \u0111\u1ed9 c\u1ee7a pin lithium ba th\u00e0nh ph\u1ea7n. \u0110\u1ecbnh lu\u1eadt tr\u1ea1ng th\u00e1i s\u1ea1c v\u00e0 \u0111i\u1ec7n \u00e1p m\u1ea1ch h\u1edf, \u0111\u1ecbnh lu\u1eadt dung l\u01b0\u1ee3ng monome d\u01b0\u1edbi c\u00e1c t\u1ed1c \u0111\u1ed9 x\u1ea3 kh\u00e1c nhau v\u00e0 \u0111\u1ecbnh lu\u1eadt dung l\u01b0\u1ee3ng v\u00e0 nhi\u1ec7t \u0111\u1ed9 \u0111\u01b0\u1ee3c thu \u0111\u01b0\u1ee3c.<\/span><\/span><\/p>\n

1) \u0110\u1ed9 \u0111\u1ed3ng nh\u1ea5t c\u1ee7a c\u00e1c cell pin lithium h\u00ecnh tr\u1ee5 18650 \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m l\u00e0 t\u1ed1t, tr\u1ea1ng th\u00e1i s\u1ea1c g\u1ea7n nh\u01b0 tuy\u1ebfn t\u00ednh v\u1edbi \u0111i\u1ec7n \u00e1p m\u1ea1ch h\u1edf. \u0110i\u1ec7n \u00e1p m\u1ea1ch h\u1edf c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u01b0\u1edbc t\u00ednh tr\u1ea1ng th\u00e1i s\u1ea1c. S\u1eed d\u1ee5ng \u0111i\u1ec7n \u00e1p m\u1ea1ch h\u1edf \u0111\u1ec3 \u01b0\u1edbc t\u00ednh tr\u1ea1ng th\u00e1i s\u1ea1c trong th\u1eddi gian t\u1eaft m\u00e1y c\u1ee7a pin \u0111i\u1ec7n v\u00e0 s\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u01b0\u1edbc t\u00ednh kh\u00e1c trong qu\u00e1 tr\u00ecnh s\u1ea1c v\u00e0 x\u1ea3 c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a \u01b0\u1edbc t\u00ednh SOC.<\/span><\/span><\/p>\n

2) Khi d\u00f2ng \u0111i\u1ec7n x\u1ea3 t\u0103ng, \u0111\u1ed9 ph\u00e2n c\u1ef1c n\u1ed3ng \u0111\u1ed9 b\u00ean trong pin t\u0103ng, \u0111i\u1ec7n tr\u1edf b\u00ean trong v\u1ed1n c\u00f3 c\u1ee7a pin lithium c\u0169ng t\u0103ng, \u0111i\u1ec7n \u00e1p gi\u1ea3m do \u0111\u00f3, khi t\u1ed1c \u0111\u1ed9 x\u1ea3 t\u0103ng, dung l\u01b0\u1ee3ng x\u1ea3 c\u1ee7a pin gi\u1ea3m.<\/span><\/span><\/p>\n

3) \u1ede nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, t\u1ed1c \u0111\u1ed9 khu\u1ebfch t\u00e1n c\u1ee7a c\u00e1c ion lithium b\u00ean trong pin ch\u1eadm h\u01a1n v\u00e0 khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng, ho\u1ea1t \u0111\u1ed9ng c\u1ee7a pin t\u0103ng v\u00e0 kh\u1ea3 n\u0103ng x\u1ea3 c\u0169ng t\u0103ng.<\/span><\/span><\/p>\n

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

Ph\u00e2n t\u00edch t\u00ecnh tr\u1ea1ng \u1ee9ng d\u1ee5ng hi\u1ec7n t\u1ea1i c\u1ee7a pin lithium-ion Ng\u00e0nh c\u00f4ng nghi\u1ec7p \u00f4 t\u00f4 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng \u0111\u00e3 mang l\u1ea1i s\u1ef1 ti\u1ec7n l\u1ee3i cho con ng\u01b0\u1eddi, trong khi kh\u00ed th\u1ea3i c\u1ee7a n\u00f3 \u0111\u00e3 tr\u1edf th\u00e0nh th\u1ee7 ph\u1ea1m ch\u00ednh g\u00e2y \u00f4 nhi\u1ec5m kh\u00f4ng kh\u00ed \u0111\u00f4 th\u1ecb. M\u1eb7t kh\u00e1c, v\u1edbi t\u01b0 c\u00e1ch l\u00e0 ngu\u1ed3n<\/p>\n","protected":false},"author":1,"featured_media":19699,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[],"class_list":["post-19698","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\/19698","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=19698"}],"version-history":[{"count":2,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19698\/revisions"}],"predecessor-version":[{"id":21989,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19698\/revisions\/21989"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media\/19699"}],"wp:attachment":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=19698"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=19698"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=19698"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}