{"id":19605,"date":"2024-02-01T08:02:07","date_gmt":"2024-02-01T08:02:07","guid":{"rendered":"http:\/\/dgbellvietnam.com\/ev-power-battery-cycling-test-part-1\/"},"modified":"2024-10-21T12:22:19","modified_gmt":"2024-10-21T05:22:19","slug":"ev-power-battery-cycling-test-part-1","status":"publish","type":"post","link":"https:\/\/dgbellvietnam.com\/en\/ev-power-battery-cycling-test-part-1\/","title":{"rendered":"Th\u1eed nghi\u1ec7m chu k\u1ef3 pin EV \u2013 Ph\u1ea7n 1"},"content":{"rendered":"
\n

Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, ng\u00e0nh c\u00f4ng nghi\u1ec7p xe n\u0103ng l\u01b0\u1ee3ng m\u1edbi c\u1ee7a Trung Qu\u1ed1c \u0111\u00e3 cho th\u1ea5y s\u1ef1 t\u0103ng tr\u01b0\u1edfng b\u00f9ng n\u1ed5, thu h\u00fat nhi\u1ec1u s\u1ef1 ch\u00fa \u00fd \u0111\u1ebfn h\u1ec7 th\u1ed1ng pin \u0111i\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong xe n\u0103ng l\u01b0\u1ee3ng m\u1edbi. L\u00e0 m\u1ed9t trong nh\u1eefng th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a xe \u0111i\u1ec7n, tu\u1ed5i th\u1ecd c\u1ee7a h\u1ec7 th\u1ed1ng pin \u0111i\u1ec7n \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng chung c\u1ee7a xe. Tr\u01b0\u1edbc \u0111\u00e2y, nghi\u00ean c\u1ee9u v\u1ec1 v\u00f2ng \u0111\u1eddi c\u1ee7a pin \u0111i\u1ec7n th\u01b0\u1eddng ch\u1ec9 gi\u1edbi h\u1ea1n \u1edf t\u1eebng cell ho\u1eb7c m\u00f4-\u0111un pin ri\u00eang l\u1ebb v\u00e0 c\u00f3 r\u1ea5t \u00edt b\u00e1o c\u00e1o v\u1ec1 nghi\u00ean c\u1ee9u h\u1ec7 th\u1ed1ng pin \u0111i\u1ec7n.<\/span><\/p>\n

Do hi\u1ec7u \u1ee9ng bo m\u1ea1ch ng\u1eafn, hi\u1ec7u su\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng pin th\u01b0\u1eddng \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi c\u00e1c cell ri\u00eang l\u1ebb k\u00e9m nh\u1ea5t b\u00ean trong, do \u0111\u00f3, s\u1ef1 kh\u00f4ng nh\u1ea5t qu\u00e1n c\u1ee7a c\u00e1c cell ri\u00eang l\u1ebb c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn gi\u1ea3m \u0111\u00e1ng k\u1ec3 hi\u1ec7u su\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng pin, \u0111\u1eb7c bi\u1ec7t l\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a h\u1ec7 th\u1ed1ng pin s\u1ebd b\u1ecb \u1ea3nh h\u01b0\u1edfng r\u1ea5t nhi\u1ec1u. Do \u0111\u00f3, vi\u1ec7c c\u1ed1 g\u1eafng x\u00e1c \u0111\u1ecbnh m\u00f4 h\u00ecnh suy gi\u1ea3m tu\u1ed5i th\u1ecd c\u1ee7a h\u1ec7 th\u1ed1ng pin, thi\u1ebft l\u1eadp ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh gi\u00e1 tu\u1ed5i th\u1ecd v\u00e0 m\u00f4 h\u00ecnh tu\u1ed5i th\u1ecd cho h\u1ec7 th\u1ed1ng pin \u0111i\u1ec7n, cung c\u1ea5p c\u01a1 s\u1edf \u0111\u1ec3 thi\u1ebft l\u1eadp c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra v\u00e0 \u0111\u00e1nh gi\u00e1 tu\u1ed5i th\u1ecd nhanh cho pin \u0111i\u1ec7n, c\u00f3 \u00fd ngh\u0129a r\u1ea5t l\u1edbn \u0111\u1ed1i v\u1edbi vi\u1ec7c s\u1eed d\u1ee5ng h\u1ee3p l\u00fd h\u1ec7 th\u1ed1ng pin trong to\u00e0n b\u1ed9 xe.<\/span><\/p>\n

1 \u0110\u1ed1i t\u01b0\u1ee3ng th\u1eed nghi\u1ec7m v\u00e0 thi\u1ebft b\u1ecb<\/span><\/strong><\/span><\/h1>\n

\u0110\u1ed1i t\u01b0\u1ee3ng nghi\u00ean c\u1ee9u: Th\u00ed nghi\u1ec7m n\u00e0y s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng pin n\u0103ng l\u01b0\u1ee3ng cao 310,8 V, 37 Ah cho xe hybrid l\u00e0m \u0111\u1ed1i t\u01b0\u1ee3ng nghi\u00ean c\u1ee9u. H\u1ec7 th\u1ed1ng pin n\u0103ng l\u01b0\u1ee3ng bao g\u1ed3m 7 m\u00f4-\u0111un n\u1ed1i ti\u1ebfp, m\u1ed7i m\u00f4-\u0111un pin n\u0103ng l\u01b0\u1ee3ng bao g\u1ed3m 12 cell pin n\u0103ng l\u01b0\u1ee3ng n\u1ed1i ti\u1ebfp. H\u00ecnh th\u1ee9c k\u1ebft h\u1ee3p c\u1ee7a to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng pin n\u0103ng l\u01b0\u1ee3ng l\u00e0 1 k\u1ebft n\u1ed1i song song v\u00e0 84 k\u1ebft n\u1ed1i n\u1ed1i ti\u1ebfp.<\/span><\/p>\n

Thi\u1ebft b\u1ecb th\u1eed nghi\u1ec7m: H\u1ec7 th\u1ed1ng pin \u0111i\u1ec7n s\u1eed d\u1ee5ng b\u1ed9 m\u00f4 ph\u1ecfng pin \u0111i\u1ec7n \u0111\u1ec3 ti\u1ebfn h\u00e0nh c\u00e1c th\u1eed nghi\u1ec7m v\u1ec1 tu\u1ed5i th\u1ecd chu k\u1ef3 v\u00e0 \u0111i\u1ec7n tr\u1edf b\u00ean trong c\u1ee7a pin. S\u1eed d\u1ee5ng b\u1ed9 l\u00e0m m\u00e1t b\u1eb1ng n\u01b0\u1edbc \u0111\u1ec3 l\u00e0m m\u00e1t h\u1ec7 th\u1ed1ng pin trong chu k\u1ef3 v\u00e0 ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m tu\u1ed5i th\u1ecd chu k\u1ef3 c\u1ee7a h\u1ec7 th\u1ed1ng pin \u0111i\u1ec7n lithium-ion. B\u1ed9 pin \u0111i\u1ec7n \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m tu\u1ed5i th\u1ecd chu k\u1ef3 b\u1eb1ng b\u1ed9 m\u00f4 ph\u1ecfng pin \u0111i\u1ec7n v\u00e0 <\/span>bu\u1ed3ng m\u00f4i tr\u01b0\u1eddng<\/span><\/a> , v\u00e0 m\u1ed9t tr\u1ea1m l\u00e0m vi\u1ec7c \u0111i\u1ec7n h\u00f3a \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 th\u1eed nghi\u1ec7m tr\u1edf kh\u00e1ng AC.<\/span><\/p>\n

2 Ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m<\/span><\/strong><\/span><\/h1>\n

2.1 Ph\u01b0\u01a1ng ph\u00e1p th\u1eed chu k\u1ef3 cell \u0111\u01a1n cho pin \u0111i\u1ec7n<\/span><\/span><\/h2>\n

\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng so s\u00e1nh c\u1ee7a k\u1ebft qu\u1ea3 th\u1ef1c nghi\u1ec7m, c\u00e1c monome pin c\u00f3 \u0111\u1ed9 \u0111\u1ed3ng nh\u1ea5t t\u1ed1t \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ecdn t\u1eeb c\u00f9ng m\u1ed9t l\u00f4 m\u1eabu v\u00e0 c\u00e1c th\u00ed nghi\u1ec7m so s\u00e1nh \u0111\u00e3 \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh \u1edf c\u00e1c \u0111\u1ed9 s\u00e2u x\u1ea3 kh\u00e1c nhau (ph\u1ea1m vi DOD) \u1edf c\u00e1c nhi\u1ec7t \u0111\u1ed9 kh\u00e1c nhau. Ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m tu\u1ea7n ho\u00e0n \u0111\u1ed1i v\u1edbi monome pin \u0111i\u1ec7n nh\u01b0 sau<\/span><\/p>\n

(1) \u0110\u1ed9 s\u00e2u s\u1ea1c v\u00e0 x\u1ea3 100% (DOD 100%): Ki\u1ec3m tra chu k\u1ef3 pin \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng v\u00e0 40 \u2103. Pin \u0111\u01b0\u1ee3c s\u1ea1c \u1edf d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i 1 C cho \u0111\u1ebfn khi \u0111i\u1ec7n \u00e1p cell \u0111\u1ea1t 4,24 V, sau \u0111\u00f3 chuy\u1ec3n sang s\u1ea1c \u0111i\u1ec7n \u00e1p kh\u00f4ng \u0111\u1ed5i cho \u0111\u1ebfn khi d\u00f2ng \u0111i\u1ec7n nh\u1ecf h\u01a1n ho\u1eb7c b\u1eb1ng 1,85 A v\u00e0 d\u1eebng s\u1ea1c. \u0110\u1ec3 y\u00ean trong 30 ph\u00fat v\u00e0 x\u1ea3 \u1edf d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i 1 C cho \u0111\u1ebfn khi \u0111i\u1ec7n \u00e1p cell \u0111\u1ea1t 3,00 V. \u0110\u1ec3 y\u00ean trong 30 ph\u00fat v\u00e0 l\u1eb7p l\u1ea1i c\u00e1c b\u01b0\u1edbc tr\u00ean \u0111\u1ec3 ki\u1ec3m tra chu k\u1ef3; Th\u1ef1c hi\u1ec7n hi\u1ec7u chu\u1ea9n dung l\u01b0\u1ee3ng v\u00e0 ki\u1ec3m tra tr\u1edf kh\u00e1ng AC sau m\u1ed7i 100 chu k\u1ef3.<\/span><\/p>\n

(2) \u0110\u1ed9 s\u00e2u s\u1ea1c v\u00e0 x\u1ea3 80% (80% DOD): Ki\u1ec3m tra chu k\u1ef3 pin \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng v\u00e0 m\u00f4i tr\u01b0\u1eddng 40 \u2103. S\u1eed d\u1ee5ng d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i 1 C \u0111\u1ec3 s\u1ea1c pin \u0111\u1ebfn \u0111i\u1ec7n \u00e1p 4,24 V v\u00e0 \u0111\u1ec3 y\u00ean trong 30 ph\u00fat. S\u1eed d\u1ee5ng d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i 1 C \u0111\u1ec3 x\u1ea3 pin \u0111\u1ebfn \u0111i\u1ec7n \u00e1p 3,00 V v\u00e0 \u0111\u1ec3 y\u00ean trong 30 ph\u00fat. L\u1eb7p l\u1ea1i c\u00e1c b\u01b0\u1edbc tr\u00ean cho ki\u1ec3m tra chu k\u1ef3 v\u00e0 hi\u1ec7u chu\u1ea9n dung l\u01b0\u1ee3ng v\u00e0 ki\u1ec3m tra tr\u1edf kh\u00e1ng AC sau m\u1ed7i 100 chu k\u1ef3.<\/span><\/p>\n

2.2 Ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra chu k\u1ef3 cho h\u1ec7 th\u1ed1ng pin \u0111i\u1ec7n<\/span><\/span><\/h2>\n

(1) \u0110\u1ed9 s\u00e2u x\u1ea3 s\u1ea1c 100% (DOD 100%). \u0110\u1ec3 tr\u00e1nh t\u00e1c \u0111\u1ed9ng c\u1ee7a nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u b\u00ean trong h\u1ec7 th\u1ed1ng pin th\u1ecf \u0111\u1ebfn tu\u1ed5i th\u1ecd chu k\u1ef3 c\u1ee7a n\u00f3, th\u00ed nghi\u1ec7m \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng (25 \u00b1 5) \u2103, v\u1edbi nhi\u1ec7t \u0111\u1ed9 ch\u1ea5t l\u00e0m m\u00e1t l\u00e0 25 \u2103 v\u00e0 l\u01b0u l\u01b0\u1ee3ng l\u00e0 8 L\/ph\u00fat. S\u1ea1c v\u1edbi 1 C cho \u0111\u1ebfn khi \u0111i\u1ec7n \u00e1p t\u1ed5ng \u0111\u1ea1t 352,8 V, sau \u0111\u00f3 chuy\u1ec3n sang s\u1ea1c \u0111i\u1ec7n \u00e1p kh\u00f4ng \u0111\u1ed5i cho \u0111\u1ebfn khi d\u00f2ng \u0111i\u1ec7n nh\u1ecf h\u01a1n ho\u1eb7c b\u1eb1ng 1,85 A v\u00e0 d\u1eebng s\u1ea1c (CC-CV), \u0111\u1ec3 y\u00ean trong 30 ph\u00fat: x\u1ea3 v\u1edbi d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i 1 C cho \u0111\u1ebfn khi \u0111i\u1ec7n \u00e1p ri\u00eang l\u1ebb \u0111\u1ea1t 3,00 V, \u0111\u1ec3 y\u00ean trong 30 ph\u00fat; T\u1ed5ng c\u1ed9ng \u0111\u00e3 ti\u1ebfn h\u00e0nh 170 chu k\u1ef3.<\/span><\/p>\n

(2) \u0110\u1ed9 s\u00e2u s\u1ea1c v\u00e0 x\u1ea3 80% (80% DOD): Th\u1eed nghi\u1ec7m chu k\u1ef3 h\u1ec7 th\u1ed1ng pin \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng, v\u1edbi nhi\u1ec7t \u0111\u1ed9 ch\u1ea5t l\u00e0m m\u00e1t l\u00e0 25 \u2103 v\u00e0 l\u01b0u l\u01b0\u1ee3ng l\u00e0 8 L\/ph\u00fat. S\u1ea1c b\u1eb1ng d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i 1 C cho \u0111\u1ebfn khi t\u1ed5ng \u0111i\u1ec7n \u00e1p \u0111\u1ea1t 348,6 V v\u00e0 \u0111\u1ec3 y\u00ean trong 30 ph\u00fat, sau \u0111\u00f3 x\u1ea3 b\u1eb1ng d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i 1 C cho \u0111\u1ebfn khi t\u1ed5ng \u0111i\u1ec7n \u00e1p \u0111\u1ea1t 290,8 V v\u00e0 \u0111\u1ec3 y\u00ean trong 30 ph\u00fat; T\u1ed5ng c\u1ed9ng \u0111\u00e3 ti\u1ebfn h\u00e0nh 2500 chu k\u1ef3. Th\u1ef1c hi\u1ec7n hi\u1ec7u chu\u1ea9n dung l\u01b0\u1ee3ng sau m\u1ed7i 200 ho\u1eb7c 100 chu k\u1ef3 v\u00e0 ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m \u0111i\u1ec7n tr\u1edf DC (DCR) \u1edf d\u00f2ng \u0111i\u1ec7n s\u1ea1c v\u00e0 x\u1ea3 c\u1ed1 \u0111\u1ecbnh theo SOC.<\/span><\/p>\n

Hi\u1ec7u chu\u1ea9n dung l\u01b0\u1ee3ng bao g\u1ed3m vi\u1ec7c ti\u1ebfn h\u00e0nh 3 l\u1ea7n th\u1eed nghi\u1ec7m s\u1ea1c v\u00e0 x\u1ea3 DOD 100% tr\u00ean h\u1ec7 th\u1ed1ng pin; \u0110\u1ea7u ti\u00ean, th\u1eed nghi\u1ec7m DCR y\u00eau c\u1ea7u h\u1ec7 th\u1ed1ng pin 1 C ph\u1ea3i \u0111\u01b0\u1ee3c s\u1ea1c \u0111\u1ebfn t\u1ed5ng \u0111i\u1ec7n \u00e1p l\u00e0 311,56 V (CC-CV, d\u00f2ng \u0111i\u1ec7n c\u1eaft l\u00e0 1,85 A), \u0111\u1ec3 y\u00ean trong 30 ph\u00fat, sau \u0111\u00f3 s\u1ea1c 20 A v\u00e0 x\u1ea3 20 A trong 10 gi\u00e2y, s\u1ea1c 120 A v\u00e0 x\u1ea3 120 A trong 10 gi\u00e2y, x\u1ea3 1 C \u0111\u1ebfn \u0111i\u1ec7n \u00e1p c\u1eaft duy nh\u1ea5t l\u00e0 3,00 V, sau \u0111\u00f3 t\u00ednh to\u00e1n c\u00e1c gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf DC d\u01b0\u1edbi m\u1ed7i d\u00f2ng \u0111i\u1ec7n xung<\/span><\/p>\n

3 Ph\u00e2n t\u00edch d\u1eef li\u1ec7u th\u1eed nghi\u1ec7m chu k\u1ef3 t\u1ebf b\u00e0o \u0111\u01a1n<\/span><\/span><\/h1>\n

3.1 Kh\u1ea3 n\u0103ng x\u1ea3 c\u1ee7a cell \u0111\u01a1n v\u00e0 s\u1ed1 chu k\u1ef3<\/span><\/span><\/h2>\n

C\u00e1c cell pin \u0111i\u1ec7n \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m tu\u1ed5i th\u1ecd 500 chu k\u1ef3 \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng (25 \u00b1 5) \u2103 v\u1edbi 80% DOD v\u00e0 100% DOD: s\u1ea1c v\u00e0 x\u1ea3 100% DOD \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n sau m\u1ed7i 200 ho\u1eb7c 100 chu k\u1ef3 \u0111\u1ec3 hi\u1ec7u ch\u1ec9nh dung l\u01b0\u1ee3ng.<\/span><\/p>\n

Dung l\u01b0\u1ee3ng x\u1ea3 ban \u0111\u1ea7u c\u1ee7a chu k\u1ef3 pin l\u00e0 38,00 Ah. Sau 200 chu k\u1ef3, t\u1ef7 l\u1ec7 duy tr\u00ec dung l\u01b0\u1ee3ng l\u00e0 100,63%, l\u1edbn h\u01a1n t\u1ef7 l\u1ec7 duy tr\u00ec dung l\u01b0\u1ee3ng l\u00e0 99,46% sau 170 chu k\u1ef3 DOD 100% trong h\u1ec7 th\u1ed1ng pin;<\/span><\/p>\n

Sau 500 chu k\u1ef3, dung l\u01b0\u1ee3ng x\u1ea3 l\u00e0 37,57 Ah v\u00e0 t\u1ef7 l\u1ec7 duy tr\u00ec dung l\u01b0\u1ee3ng l\u00e0 98,87%.<\/span><\/p>\n

Dung l\u01b0\u1ee3ng x\u1ea3 ban \u0111\u1ea7u c\u1ee7a chu k\u1ef3 80% DOD l\u00e0 38,73 Ah.<\/span><\/p>\n

Sau 200 chu k\u1ef3, dung l\u01b0\u1ee3ng l\u00e0 38,36 Ah v\u00e0 t\u1ef7 l\u1ec7 duy tr\u00ec dung l\u01b0\u1ee3ng l\u00e0 99,04%.<\/span><\/p>\n

Sau 500 chu k\u1ef3, dung l\u01b0\u1ee3ng x\u1ea3 l\u00e0 36,66 Ah v\u00e0 t\u1ef7 l\u1ec7 duy tr\u00ec dung l\u01b0\u1ee3ng l\u00e0 94,66%. Sau 400 chu k\u1ef3 DOD 80% trong h\u1ec7 th\u1ed1ng pin, t\u1ef7 l\u1ec7 duy tr\u00ec dung l\u01b0\u1ee3ng l\u00e0 96,72% v\u00e0 sau 600 chu k\u1ef3, t\u1ef7 l\u1ec7 duy tr\u00ec dung l\u01b0\u1ee3ng l\u00e0 91,76%.<\/span><\/p>\n

\u0110\u01b0\u1eddng cong \u0111i\u1ec7n \u00e1p dung l\u01b0\u1ee3ng c\u1ee7a c\u00e1c cell pin \u0111i\u1ec7n \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng. C\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng n\u1ec1n t\u1ea3ng \u0111i\u1ec7n \u00e1p x\u1ea3 c\u1ee7a pin h\u1ec7 th\u1ed1ng ba th\u00e0nh ph\u1ea7n NCM n\u1eb1m trong kho\u1ea3ng 4,15 \u2013 3,30 V v\u00e0 n\u1ec1n t\u1ea3ng \u0111i\u1ec7n \u00e1p s\u1ea1c n\u1eb1m trong kho\u1ea3ng 3,50 \u2013 4,20 V. \u0110\u01b0\u1eddng cong \u0111i\u1ec7n \u00e1p dung l\u01b0\u1ee3ng c\u1ee7a 80% DOD sau 0-500 chu k\u1ef3 cho th\u1ea5y kh\u1ea3 n\u0103ng x\u1ea3 gi\u1ea3m \u0111\u00e1ng k\u1ec3 sau m\u1ed7i 200 ho\u1eb7c 100 chu k\u1ef3 \u1edf \u0111\u1ed9 s\u00e2u s\u1ea1c v\u00e0 x\u1ea3 n\u00e0y. Sau 0-500 chu k\u1ef3, \u0111\u01b0\u1eddng cong \u0111i\u1ec7n \u00e1p dung l\u01b0\u1ee3ng c\u1ee7a 100% DOD kh\u00f4ng cho th\u1ea5y kh\u1ea3 n\u0103ng x\u1ea3 gi\u1ea3m \u0111\u00e1ng k\u1ec3.<\/span><\/p>\n

Pin \u0111i\u1ec7n \u0111\u00e3 tr\u1ea3i qua 500 l\u1ea7n th\u1eed nghi\u1ec7m tu\u1ed5i th\u1ecd chu k\u1ef3 \u1edf 80% DOD v\u00e0 100% DOD trong m\u00f4i tr\u01b0\u1eddng (40 \u00b1 5) \u2103. Dung l\u01b0\u1ee3ng x\u1ea3 ban \u0111\u1ea7u c\u1ee7a chu k\u1ef3 tu\u1ed5i th\u1ecd 80% DOD c\u1ee7a pin l\u00e0 40,19 Ah v\u00e0 t\u1ef7 l\u1ec7 duy tr\u00ec dung l\u01b0\u1ee3ng x\u1ea3 sau 200 chu k\u1ef3 l\u00e0 94,65%; Sau 500 chu k\u1ef3, dung l\u01b0\u1ee3ng x\u1ea3 l\u00e0 Ah v\u00e0 t\u1ef7 l\u1ec7 duy tr\u00ec dung l\u01b0\u1ee3ng l\u00e0 91,22% DOD. Dung l\u01b0\u1ee3ng x\u1ea3 ban \u0111\u1ea7u l\u00e0 sau chu k\u1ef3 tu\u1ed5i th\u1ecd v\u00e0 t\u1ef7 l\u1ec7 duy tr\u00ec dung l\u01b0\u1ee3ng l\u00e0 95,82%;<\/span><\/p>\n

Sau 500 chu k\u1ef3, \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng v\u00e0 40 \u00b0 C, t\u1ef7 l\u1ec7 duy tr\u00ec kh\u1ea3 n\u0103ng x\u1ea3 tu\u1ea7n ho\u00e0n l\u1edbn h\u01a1n 80% t\u1ef7 l\u1ec7 duy tr\u00ec kh\u1ea3 n\u0103ng x\u1ea3 tu\u1ea7n ho\u00e0n DOD (kh\u1ea3 n\u0103ng x\u1ea3 \u0111\u1ea7y \u0111\u1ee7 sau khi k\u1ebft th\u00fac chu k\u1ef3\/kh\u1ea3 n\u0103ng x\u1ea3 \u0111\u1ea7y \u0111\u1ee7 ban \u0111\u1ea7u)<\/span><\/p>\n

T\u1ed1c \u0111\u1ed9 suy gi\u1ea3m dung l\u01b0\u1ee3ng trong qu\u00e1 tr\u00ecnh s\u1ea1c pin \u1edf 40\u2103 l\u1edbn h\u01a1n so v\u1edbi nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng, cho th\u1ea5y nhi\u1ec7t \u0111\u1ed9 cao s\u1ebd \u0111\u1ea9y nhanh qu\u00e1 tr\u00ecnh suy gi\u1ea3m dung l\u01b0\u1ee3ng pin v\u00e0 l\u00e0m gi\u1ea3m tu\u1ed5i th\u1ecd s\u1ea1c pin.<\/span><\/p>\n

\u1ede 40 \u00b0 C, kh\u1ea3 n\u0103ng x\u1ea3 c\u1ee7a m\u1ed9t pin \u0111\u01a1n n\u0103ng gi\u1ea3m nhanh ch\u00f3ng gi\u1eefa 0-300 chu k\u1ef3 \u1edf 80% DOD v\u00e0 nhanh ch\u00f3ng gi\u1eefa 100-200 chu k\u1ef3 \u1edf 100% DOD<\/span><\/p>\n

3.2 Tr\u1edf kh\u00e1ng AC c\u1ee7a cell \u0111\u01a1n<\/span><\/span><\/h2>\n

Ph\u1ed5 tr\u1edf kh\u00e1ng AC c\u1ee7a c\u00e1c cell pin \u0111i\u1ec7n tr\u01b0\u1edbc v\u00e0 sau 80% chu k\u1ef3 DOD \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng v\u00e0 40 \u2103. Tr\u1edf kh\u00e1ng pin c\u1ee7a pin lithium-ion bao g\u1ed3m tr\u1edf kh\u00e1ng c\u1ee7a ch\u1ea5t \u0111i\u1ec7n ph\u00e2n, tr\u1edf kh\u00e1ng truy\u1ec1n kh\u1ed1i v\u00e0 \u0111i\u1ec7n t\u00edch t\u1ea1i giao di\u1ec7n ch\u1ea5t \u0111i\u1ec7n ph\u00e2n \u0111i\u1ec7n c\u1ef1c v\u00e0 tr\u1edf kh\u00e1ng khu\u1ebfch t\u00e1n c\u1ee7a c\u00e1c ion lithium g\u1ea7n \u0111i\u1ec7n c\u1ef1c v\u00e0 giao di\u1ec7n c\u1ee7a n\u00f3.<\/span><\/p>\n

Ph\u1ed5 tr\u1edf kh\u00e1ng c\u1ee7a \u0111i\u1ec7n c\u1ef1c bao g\u1ed3m m\u1ed9t n\u1eeda h\u00ecnh tr\u00f2n \u1edf v\u00f9ng t\u1ea7n s\u1ed1 cao v\u00e0 m\u1ed9t \u0111\u01b0\u1eddng ch\u00e9o \u1edf v\u00f9ng t\u1ea7n s\u1ed1 th\u1ea5p. Tr\u1edf kh\u00e1ng c\u1ee7a ch\u1ea5t \u0111i\u1ec7n ph\u00e2n t\u0103ng \u0111\u00e1ng k\u1ec3 tr\u01b0\u1edbc v\u00e0 sau 500 chu k\u1ef3 \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng v\u00e0 40 \u2103 \u0111\u1ed1i v\u1edbi m\u1ed9t pin DOD 80% duy nh\u1ea5t, t\u1eeb 0,9 m \u03a9 v\u00e0 1,0 m \u03a9 tr\u01b0\u1edbc khi chu k\u1ef3 l\u00ean 2,0 m \u03a9 v\u00e0 2,4 m \u03a9 sau khi chu k\u1ef3.<\/span><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, ng\u00e0nh c\u00f4ng nghi\u1ec7p xe n\u0103ng l\u01b0\u1ee3ng m\u1edbi c\u1ee7a Trung Qu\u1ed1c \u0111\u00e3 cho th\u1ea5y s\u1ef1 t\u0103ng tr\u01b0\u1edfng b\u00f9ng n\u1ed5, thu h\u00fat nhi\u1ec1u s\u1ef1 ch\u00fa \u00fd \u0111\u1ebfn h\u1ec7 th\u1ed1ng pin \u0111i\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong xe n\u0103ng l\u01b0\u1ee3ng m\u1edbi. L\u00e0 m\u1ed9t trong nh\u1eefng th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a xe \u0111i\u1ec7n, tu\u1ed5i th\u1ecd c\u1ee7a<\/p>\n","protected":false},"author":1,"featured_media":19606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[],"class_list":["post-19605","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\/19605","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=19605"}],"version-history":[{"count":3,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19605\/revisions"}],"predecessor-version":[{"id":21922,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19605\/revisions\/21922"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media\/19606"}],"wp:attachment":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=19605"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=19605"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=19605"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}