{"id":19784,"date":"2022-11-03T07:48:34","date_gmt":"2022-11-03T07:48:34","guid":{"rendered":"http:\/\/dgbellvietnam.com\/about-battery-internal-short-circuit-test\/"},"modified":"2024-11-15T14:56:10","modified_gmt":"2024-11-15T07:56:10","slug":"about-battery-internal-short-circuit-test","status":"publish","type":"post","link":"https:\/\/dgbellvietnam.com\/en\/about-battery-internal-short-circuit-test\/","title":{"rendered":"Gi\u1edbi thi\u1ec7u th\u1eed nghi\u1ec7m ng\u1eafn m\u1ea1ch trong pin"},"content":{"rendered":"
\n

Pin lithium-ion \u0111i\u1ec7n c\u00f3 \u01b0u \u0111i\u1ec3m l\u00e0 m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng cao, tu\u1ed5i th\u1ecd d\u00e0i, \u0111i\u1ec7n \u00e1p \u0111\u1ecbnh m\u1ee9c cao, kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i \u0111i\u1ec7n cao v\u00e0 hi\u1ec7u su\u1ea5t t\u1ef1 x\u1ea3 th\u1ea5p, \u0111\u00e3 tr\u1edf th\u00e0nh pin \u0111i\u1ec7n l\u00fd t\u01b0\u1edfng cho xe \u0111i\u1ec7n hybrid v\u00e0 xe \u0111i\u1ec7n thu\u1ea7n t\u00fay. Tuy nhi\u00ean, v\u1ea5n \u0111\u1ec1 an to\u00e0n c\u1ee7a pin lithium-ion \u0111\u00e3 tr\u1edf th\u00e0nh y\u1ebfu t\u1ed1 ch\u00ednh ng\u0103n c\u1ea3n n\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong l\u0129nh v\u1ef1c \u0111i\u1ec7n.<\/span><\/span><\/p>\n

V\u1edbi s\u1ef1 gia t\u0103ng s\u1ed1 l\u01b0\u1ee3ng xe \u0111i\u1ec7n, c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 an to\u00e0n c\u1ee7a ch\u00fang ng\u00e0y c\u00e0ng n\u1ed5i b\u1eadt v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 an to\u00e0n c\u1ee7a xe \u0111i\u1ec7n ch\u1ee7 y\u1ebfu \u0111\u1ebfn t\u1eeb h\u1ec7 th\u1ed1ng \u0111i\u1ec7n c\u1ee7a ch\u00fang – pin lithium ion. V\u1ea5n \u0111\u1ec1 an to\u00e0n c\u1ee7a pin lithium-ion ch\u1ee7 y\u1ebfu l\u00e0 do ch\u00e1y n\u1ed5 do tho\u00e1t nhi\u1ec7t, v\u00e0 m\u1ed9t trong nh\u1eefng l\u00fd do g\u00e2y tho\u00e1t nhi\u1ec7t l\u00e0 do ch\u1eadp m\u1ea1ch b\u00ean trong pin.<\/span><\/span><\/p>\n

Hi\u1ec7n nay, nghi\u00ean c\u1ee9u v\u1ec1 hi\u1ec7n t\u01b0\u1ee3ng m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t c\u1ee7a pin lithium-ion ch\u1ee7 y\u1ebfu t\u1eadp trung v\u00e0o ph\u00e2n t\u00edch m\u00f4 h\u00ecnh v\u00e0 ph\u00e2n t\u00edch th\u1ef1c nghi\u1ec7m c\u1ee7a m\u1ed9t lo\u1ea1i pin. B\u00e0i b\u00e1o n\u00e0y \u00e1p d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau cho pin 18650 v\u00e0 pin vu\u00f4ng \u0111\u1ec3 m\u00f4 ph\u1ecfng hi\u1ec7n t\u01b0\u1ee3ng m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t do ng\u1eafn m\u1ea1ch trong cell c\u1ee7a m\u00f4-\u0111un pin v\u00e0 kh\u00e1m ph\u00e1 ph\u01b0\u01a1ng ph\u00e1p ph\u00f9 h\u1ee3p \u0111\u1ec3 x\u00e1c minh hi\u1ec7n t\u01b0\u1ee3ng m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t c\u1ee7a m\u00f4-\u0111un pin ngu\u1ed3n.<\/span><\/span><\/p>\n

1.Ch\u1eadp m\u1ea1ch trong m\u00e1y<\/span><\/span><\/strong><\/span><\/span><\/h1>\n

Nh\u00ecn chung, nguy c\u01a1 x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng \u0111o\u1ea3n m\u1ea1ch b\u00ean trong trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m l\u1ea1m d\u1ee5ng l\u00e0 l\u1edbn nh\u1ea5t.<\/span><\/span><\/p>\n

Khi pin b\u1ecb \u0111o\u1ea3n m\u1ea1ch b\u00ean trong, nhi\u1ec7t \u0111\u1ed9 b\u00ean trong t\u0103ng l\u00ean. Nhi\u1ec7t \u0111\u1ed9 cao s\u1ebd g\u00e2y ra m\u1ed9t lo\u1ea1t c\u00e1c ph\u1ea3n \u1ee9ng t\u1ecfa nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u pin v\u00e0 nhi\u1ec7t sinh ra t\u1eeb ph\u1ea3n \u1ee9ng s\u1ebd l\u00e0m t\u0103ng th\u00eam nhi\u1ec7t \u0111\u1ed9 b\u00ean trong pin v\u00e0 t\u0103ng c\u01b0\u1eddng t\u1ed1c \u0111\u1ed9 ph\u1ea3n \u1ee9ng t\u1ecfa nhi\u1ec7t. Cu\u1ed1i c\u00f9ng, ph\u1ea3n \u1ee9ng t\u1ecfa nhi\u1ec7t v\u00e0 nhi\u1ec7t \u0111\u1ed9 cao \u1ea3nh h\u01b0\u1edfng l\u1eabn nhau, t\u1ea1o ra tr\u1ea1ng th\u00e1i m\u1ea5t ki\u1ec3m so\u00e1t, t\u1ee9c l\u00e0 m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t, d\u1eabn \u0111\u1ebfn c\u00e1c tai n\u1ea1n an to\u00e0n nh\u01b0 ch\u00e1y n\u1ed5 pin lithium ion. Hi\u1ec7n nay, hi\u1ec7n t\u01b0\u1ee3ng \u0111o\u1ea3n m\u1ea1ch b\u00ean trong pin ch\u1ee7 y\u1ebfu do hai l\u00fd do sau: l\u1ed7i c\u1ee7a m\u00e0ng ng\u0103n \u0111\u1ea7u ti\u00ean, \u00f4 nhi\u1ec5m nguy\u00ean li\u1ec7u th\u00f4 ho\u1eb7c c\u1eb7n c\u1ee7a v\u1eadt l\u1ea1 s\u1ebd li\u00ean t\u1ee5c b\u1ecb h\u01b0 h\u1ecfng v\u00e0 khu\u1ebfch \u0111\u1ea1i trong qu\u00e1 tr\u00ecnh v\u1eadn chuy\u1ec3n v\u00e0 s\u1eed d\u1ee5ng pin.<\/span><\/span><\/p>\n

\u1ede giai \u0111o\u1ea1n n\u00e0y, ngay c\u1ea3 nh\u00e0 s\u1ea3n xu\u1ea5t pin c\u00f3 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t nh\u1ea5t c\u0169ng kh\u00f4ng th\u1ec3 tr\u00e1nh ho\u00e0n to\u00e0n t\u1ea1p ch\u1ea5t kim lo\u1ea1i ho\u1eb7c g\u1edd ph\u00e1t sinh trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t: vi\u1ec7c s\u1eed d\u1ee5ng pin th\u1ee9 hai v\u01b0\u1ee3t qu\u00e1 ph\u1ea1m vi \u00e1p d\u1ee5ng c\u1ee7a d\u00f2ng \u0111i\u1ec7n, \u0111i\u1ec7n \u00e1p v\u00e0 nhi\u1ec7t \u0111\u1ed9 do nh\u00e0 s\u1ea3n xu\u1ea5t ch\u1ec9 \u0111\u1ecbnh. M\u1ed9t ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn r\u1ed9ng r\u00e3i \u0111\u1ec3 ki\u1ec3m tra ng\u1eafn m\u1ea1ch b\u00ean trong trong ng\u00e0nh ph\u1ea3i c\u00f3 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m sau:<\/span><\/span><\/p>\n

(1) N\u00f3 c\u00f3 th\u1ec3 th\u00edch \u1ee9ng v\u1edbi s\u1ef1 thay \u0111\u1ed5i v\u1ec1 c\u1ea5u tr\u00fac v\u00e0 h\u00ecnh d\u1ea1ng c\u1ee7a pin (c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng pin h\u00ecnh tr\u1ee5 ho\u1eb7c h\u00ecnh vu\u00f4ng)<\/span><\/span><\/p>\n

(2) K\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m ph\u1ea3i c\u00f3 kh\u1ea3 n\u0103ng so s\u00e1nh v\u1edbi k\u1ebft qu\u1ea3 c\u1ee7a c\u00e1c bi\u1ebfn kh\u00e1c.<\/span><\/span><\/p>\n

Nhi\u1ec1u m\u1ea1ch ng\u1eafn b\u00ean trong c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh b\u1ed1n lo\u1ea1i sau: c\u1ef1c \u00e2m t\u1edbi c\u1ef1c d\u01b0\u01a1ng, c\u1ef1c \u00e2m t\u1edbi l\u00e1 nh\u00f4m, l\u00e1 \u0111\u1ed3ng t\u1edbi l\u00e1 nh\u00f4m v\u00e0 l\u00e1 \u0111\u1ed3ng t\u1edbi c\u1ef1c d\u01b0\u01a1ng<\/span><\/span><\/p>\n

2. Gi\u1edbi thi\u1ec7u ph\u01b0\u01a1ng ph\u00e1p ng\u1eafn m\u1ea1ch trong cell \u0111\u01a1n<\/span><\/span><\/strong><\/span><\/span><\/h1>\n

Trong b\u00e0i b\u00e1o n\u00e0y, pin lo\u1ea1i 18650 v\u00e0 pin vu\u00f4ng c\u00f3 c\u00f9ng v\u1eadt li\u1ec7u d\u01b0\u01a1ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 m\u00f4 ph\u1ecfng th\u1eed nghi\u1ec7m. Ph\u01b0\u01a1ng ph\u00e1p k\u00edch ho\u1ea1t ng\u1eafn m\u1ea1ch trong pin th\u1eed nghi\u1ec7m l\u00e0 nung n\u00f3ng d\u00e2y \u0111i\u1ec7n tr\u1edf v\u00e0 \u0111\u00e2m \u0111inh.<\/span><\/span><\/p>\n

(1) <\/span><\/span>L\u00e0m n\u00f3ng b\u1eb1ng d\u00e2y \u0111i\u1ec7n tr\u1edf<\/span><\/span><\/a><\/strong><\/span><\/h3>\n

Ph\u01b0\u01a1ng ph\u00e1p gia nhi\u1ec7t b\u1eb1ng d\u00e2y \u0111i\u1ec7n tr\u1edf \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 m\u00f4 ph\u1ecfng s\u1ef1 m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t c\u1ee7a pin lithium ion do s\u1ef1 thay \u0111\u1ed5i \u0111\u1ed9t ng\u1ed9t c\u1ee7a nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng. M\u00e0ng ng\u0103n pin \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o t\u1eeb m\u00e0ng ng\u0103n ba l\u1edbp PP\/PE\/PP, trong \u0111\u00f3 \u0111i\u1ec3m n\u00f3ng ch\u1ea3y c\u1ee7a PP l\u00e0 165 \u2103 v\u00e0 c\u1ee7a PE l\u00e0 135 \u2103. B\u1eb1ng c\u00e1ch qu\u1ea5n d\u00e2y \u0111i\u1ec7n tr\u1edf tr\u00ean b\u1ec1 m\u1eb7t pin lithium-ion \u0111\u1ec3 gia nhi\u1ec7t, m\u1ed9t l\u01b0\u1ee3ng nhi\u1ec7t l\u1edbn \u0111\u01b0\u1ee3c t\u1ea1o ra nhanh ch\u00f3ng, khi\u1ebfn m\u00e0ng ng\u0103n bi\u1ebfn d\u1ea1ng v\u00e0 co l\u1ea1i, v\u00e0 c\u00e1c c\u1ef1c d\u01b0\u01a1ng v\u00e0 c\u1ef1c \u00e2m \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i, g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng \u0111o\u1ea3n m\u1ea1ch trong pin v\u00e0 cu\u1ed1i c\u00f9ng khi\u1ebfn pin m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t.<\/span><\/span><\/a><\/p>\n

(2) <\/span><\/span>S\u1ef1 \u0111\u00e2m xuy\u00ean<\/span><\/span><\/a><\/strong><\/span><\/h3>\n

S\u1ef1 tho\u00e1t nhi\u1ec7t c\u1ee7a pin lithium-ion l\u00e0 do kim th\u00e9p \u0111\u00e2m v\u00e0o pin lithium-ion \u0111\u1ec3 m\u00f4 ph\u1ecfng c\u00e1c v\u1eadt l\u1ea1 b\u1eb1ng kim lo\u1ea1i b\u00ean trong pin. Sau khi kim th\u00e9p \u0111\u00e2m v\u00e0o pin, n\u00f3 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi c\u00e1c \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng v\u00e0 \u00e2m nh\u01b0 m\u1ed9t d\u00e2y d\u1eabn kim lo\u1ea1i, g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng \u0111o\u1ea3n m\u1ea1ch b\u00ean trong pin. V\u1ecb tr\u00ed \u0111o\u1ea3n m\u1ea1ch s\u1ebd t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n l\u1edbn v\u00e0 nhanh ch\u00f3ng t\u1ea1o ra r\u1ea5t nhi\u1ec1u nhi\u1ec7t, cu\u1ed1i c\u00f9ng s\u1ebd d\u1eabn \u0111\u1ebfn s\u1ef1 tho\u00e1t nhi\u1ec7t c\u1ee7a pin.<\/span><\/span><\/p>\n

<\/a><\/p>\n

3. Ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m s\u1ef1 tho\u00e1t nhi\u1ec7t c\u1ee7a m\u00f4-\u0111un pin \u0111i\u1ec7n<\/span><\/span><\/strong><\/span><\/span><\/h1>\n

(1) L\u00e0m n\u00f3ng b\u1eb1ng d\u00e2y \u0111i\u1ec7n tr\u1edf<\/span><\/span><\/strong><\/span><\/h3>\n

Pin 18650<\/span><\/span><\/p>\n

Pin 18650 \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong th\u1eed nghi\u1ec7m. D\u00e2y \u0111i\u1ec7n tr\u1edf c\u00f3 \u0111i\u1ec7n tr\u1edf b\u00ean trong nh\u1ea5t \u0111\u1ecbnh \u0111\u01b0\u1ee3c qu\u1ea5n tr\u00ean b\u1ec1 m\u1eb7t pin th\u00f4ng qua t\u00ednh to\u00e1n v\u00e0 m\u1ed9t c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9 \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed b\u00ean ngo\u00e0i v\u1ecf pin, sau \u0111\u00f3 pin \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed \u1edf gi\u1eefa m\u00f4-\u0111un pin. Pin li\u1ec1n k\u1ec1 v\u1edbi pin c\u0169ng \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed c\u00f9ng m\u1ed9t c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9. Sau khi pin \u0111\u01b0\u1ee3c l\u1eafp r\u00e1p th\u00e0nh c\u00e1c m\u00f4-\u0111un song song, h\u00e3y s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p s\u1ea1c do nh\u00e0 s\u1ea3n xu\u1ea5t ch\u1ec9 \u0111\u1ecbnh \u0111\u1ec3 s\u1ea1c pin cho \u0111\u1ebfn khi s\u1ea1c \u0111\u1ea7y. K\u1ebft n\u1ed1i d\u00e2y \u0111i\u1ec7n tr\u1edf v\u1edbi ngu\u1ed3n \u0111i\u1ec7n b\u00ean ngo\u00e0i v\u00e0 k\u1ebft n\u1ed1i c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9 v\u1edbi m\u00e1y d\u00f2 tu\u1ea7n tra nhi\u1ec7t \u0111\u1ed9; Ghi l\u1ea1i tr\u1ea1ng th\u00e1i ban \u0111\u1ea7u c\u1ee7a m\u00f4-\u0111un pin (\u0111i\u1ec7n \u00e1p, nhi\u1ec7t \u0111\u1ed9, v.v.), ti\u1ebfp t\u1ee5c l\u00e0m n\u00f3ng pin cho \u0111\u1ebfn khi pin h\u1ecfng, ng\u1eaft k\u1ebft n\u1ed1i ngu\u1ed3n \u0111i\u1ec7n b\u00ean ngo\u00e0i v\u00e0 quan s\u00e1t xem m\u00f4-\u0111un c\u00f3 m\u1ea5t ki\u1ec3m so\u00e1t do nhi\u1ec7t kh\u00f4ng.<\/span><\/span><\/p>\n

T\u1ebf b\u00e0o l\u0103ng tr\u1ee5<\/span><\/span><\/p>\n

B\u00e0i ki\u1ec3m tra s\u1eed d\u1ee5ng pin vu\u00f4ng. Qu\u1ea5n c\u00f9ng m\u1ed9t d\u00e2y \u0111i\u1ec7n tr\u1edf tr\u00ean b\u1ec1 m\u1eb7t pin v\u00e0 b\u1ed1 tr\u00ed c\u00e1c c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9 tr\u00ean b\u1ec1 m\u1eb7t pin c\u1ea7n l\u00e0m n\u00f3ng v\u00e0 c\u00e1c b\u1ec1 m\u1eb7t pin li\u1ec1n k\u1ec1. Sau khi pin t\u1ea1o th\u00e0nh m\u00f4-\u0111un, h\u00e3y s\u1ea1c m\u00f4-\u0111un \u0111\u1ebfn khi s\u1ea1c \u0111\u1ea7y theo ph\u01b0\u01a1ng ph\u00e1p s\u1ea1c do nh\u00e0 s\u1ea3n xu\u1ea5t ch\u1ec9 \u0111\u1ecbnh. Ph\u01b0\u01a1ng ph\u00e1p l\u00e0m n\u00f3ng v\u00e0 ghi l\u1ea1i nhi\u1ec7t \u0111\u1ed9 gi\u1ed1ng nh\u01b0 c\u00e1c b\u00e0i ki\u1ec3m tra tr\u00ean. Ti\u1ebfp t\u1ee5c l\u00e0m n\u00f3ng pin cho \u0111\u1ebfn khi pin h\u1ecfng. Ng\u1eaft k\u1ebft n\u1ed1i ngu\u1ed3n \u0111i\u1ec7n b\u00ean ngo\u00e0i v\u00e0 quan s\u00e1t xem m\u00f4-\u0111un pin vu\u00f4ng c\u00f3 m\u1ea5t ki\u1ec3m so\u00e1t kh\u00f4ng.<\/span><\/span><\/p>\n

(2) S\u1ef1 \u0111\u00e2m th\u1ee7ng c\u1ee7a \u0111inh<\/span><\/span><\/strong><\/span><\/h3>\n

Pin 118650<\/span><\/span><\/p>\n

Pin 18650 \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong th\u1eed nghi\u1ec7m. Ch\u1ecdn v\u1ecb tr\u00ed c\u1ee7a pin kim \u0111\u1ec3 s\u1eafp x\u1ebfp c\u00e1c c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9 tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a pin n\u00e0y v\u00e0 c\u00e1c pin li\u1ec1n k\u1ec1. Sau khi c\u00e1c pin \u0111\u01b0\u1ee3c l\u1eafp r\u00e1p th\u00e0nh c\u00e1c m\u00f4-\u0111un song song, h\u00e3y s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p s\u1ea1c do nh\u00e0 s\u1ea3n xu\u1ea5t ch\u1ec9 \u0111\u1ecbnh \u0111\u1ec3 s\u1ea1c pin cho \u0111\u1ebfn khi s\u1ea1c \u0111\u1ea7y. C\u1ed1 \u0111\u1ecbnh m\u00f4-\u0111un tr\u00ean gi\u00e1 \u0111\u1ee1 kim v\u00e0 k\u1ebft n\u1ed1i thi\u1ebft b\u1ecb tu\u1ea7n tra nhi\u1ec7t \u0111\u1ed9. S\u1eed d\u1ee5ng kim th\u00e9p c\u00f3 \u0111\u01b0\u1eddng k\u00ednh 1mm \u0111\u1ec3 \u0111\u00e2m th\u1ee7ng pin v\u1edbi t\u1ed1c \u0111\u1ed9 1mm\/gi\u00e2y cho \u0111\u1ebfn khi b\u1eaft l\u1eeda v\u00e0 quan s\u00e1t xem m\u00f4-\u0111un c\u00f3 m\u1ea5t ki\u1ec3m so\u00e1t do nhi\u1ec7t kh\u00f4ng.<\/span><\/span><\/p>\n

T\u1ebf b\u00e0o l\u0103ng tr\u1ee5<\/span><\/span><\/p>\n

Th\u1eed nghi\u1ec7m s\u1eed d\u1ee5ng pin vu\u00f4ng. Ch\u1ecdn v\u1ecb tr\u00ed pin \u0111\u00e3 \u0111\u1ee5c l\u1ed7 kim, s\u1eafp x\u1ebfp c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9 tr\u00ean b\u1ec1 m\u1eb7t pin li\u1ec1n k\u1ec1 v\u00e0 s\u1ea1c \u0111\u1ea7y pin theo ph\u01b0\u01a1ng ph\u00e1p s\u1ea1c do nh\u00e0 s\u1ea3n xu\u1ea5t ch\u1ec9 \u0111\u1ecbnh sau khi pin t\u1ea1o th\u00e0nh m\u00f4-\u0111un. S\u1eed d\u1ee5ng kim th\u00e9p c\u00f3 \u0111\u01b0\u1eddng k\u00ednh 1mm \u0111\u1ec3 \u0111\u00e2m th\u1ee7ng pin v\u1edbi t\u1ed1c \u0111\u1ed9 1mm\/gi\u00e2y cho \u0111\u1ebfn khi pin b\u1eaft l\u1eeda v\u00e0 quan s\u00e1t xem m\u00f4-\u0111un c\u00f3 m\u1ea5t ki\u1ec3m so\u00e1t do nhi\u1ec7t kh\u00f4ng.<\/span><\/span><\/p>\n

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

B\u1eb1ng c\u00e1ch ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m \u0111\u1ed1t n\u00f3ng v\u00e0 ch\u00e2m \u0111i\u1ec7n tr\u1edf tr\u00ean pin 18650 v\u00e0 pin vu\u00f4ng, pin trong m\u00f4-\u0111un \u0111\u00e3 b\u1ecb \u0111o\u1ea3n m\u1ea1ch v\u00e0 pin trong m\u00f4-\u0111un pin \u0111\u00e3 \u0111\u01b0\u1ee3c m\u00f4 ph\u1ecfng l\u00e0 kh\u00f4ng ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c nhi\u1ec7t. Ph\u01b0\u01a1ng ph\u00e1p x\u00e1c minh th\u00edch h\u1ee3p cho vi\u1ec7c kh\u00f4ng ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u00e3 \u0111\u01b0\u1ee3c kh\u00e1m ph\u00e1 v\u00e0 r\u00fat ra c\u00e1c k\u1ebft lu\u1eadn sau:<\/span><\/span><\/p>\n

(1)B\u1eb1ng c\u00e1ch so s\u00e1nh c\u00e1c th\u1eed nghi\u1ec7m \u0111\u00e2m xuy\u00ean \u0111inh v\u00e0 l\u00e0m n\u00f3ng d\u00e2y cation, ch\u00fang t\u00f4i th\u1ea5y r\u1eb1ng \u0111\u1ed1i v\u1edbi c\u00f9ng m\u1ed9t lo\u1ea1i pin, hi\u1ec7n t\u01b0\u1ee3ng \u0111o\u1ea3n m\u1ea1ch b\u00ean trong do d\u00e2y \u0111i\u1ec7n tr\u1edf l\u00e0m n\u00f3ng khi\u1ebfn nhi\u1ec7t \u0111\u1ed9 pin t\u0103ng cao h\u01a1n, ch\u00fang t\u00f4i tin r\u1eb1ng nguy\u00ean nh\u00e2n l\u00e0 do nhi\u1ec7t do d\u00e2y \u0111i\u1ec7n tr\u1edf l\u00e0m n\u00f3ng g\u00e2y ra;<\/span><\/span><\/p>\n

(2) Trong qu\u00e1 tr\u00ecnh gia nhi\u1ec7t c\u1ee7a d\u00e2y \u0111i\u1ec7n tr\u1edf, n\u00f3 s\u1ebd mang l\u1ea1i r\u1ea5t nhi\u1ec1u nhi\u1ec7t cho pin li\u1ec1n k\u1ec1. N\u1ebfu kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c m\u00f4-\u0111un nh\u1ecf, r\u1ea5t c\u00f3 th\u1ec3 pin \u0111\u01b0\u1ee3c gia nhi\u1ec7t v\u00e0 pin li\u1ec1n k\u1ec1 s\u1ebd m\u1ea5t ki\u1ec3m so\u00e1t, \u0111i\u1ec1u n\u00e0y s\u1ebd d\u1eabn \u0111\u1ebfn vi\u1ec7c m\u00f4 ph\u1ecfng th\u1eed nghi\u1ec7m kh\u00f4ng th\u00e0nh c\u00f4ng. Do \u0111\u00f3, ch\u00fang t\u00f4i tin r\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e2m \u0111inh ph\u00f9 h\u1ee3p h\u01a1n \u0111\u1ec3 x\u00e1c minh an to\u00e0n cho pin 18.650 v\u00e0 m\u00f4-\u0111un pin vu\u00f4ng m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t;<\/span><\/span><\/p>\n

(3) Khi van an to\u00e0n gi\u1ea3m \u00e1p trong \u1eafc quy b\u1ecb ch\u1eadp m\u1ea1ch, n\u00f3 c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u00e1p su\u1ea5t v\u00e0 nhi\u1ec7t \u0111\u1ed9 b\u00ean trong \u1eafc quy, ng\u0103n ng\u1eeba \u1eafc quy b\u1ecb m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t v\u00e0 ph\u00e1t huy t\u00e1c d\u1ee5ng b\u1ea3o v\u1ec7;<\/span><\/span><\/p>\n

(4) Ch\u00e1y do phun ch\u1ea5t \u0111i\u1ec7n ph\u00e2n v\u1edbi t\u1ed1c \u0111\u1ed9 cao kh\u00f4ng ph\u1ea3i l\u00e0 nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng t\u0103ng nhi\u1ec7t \u0111\u1ed9 v\u00e0 h\u1ecfng c\u00e1c b\u00ecnh \u1eafc quy b\u00ean c\u1ea1nh.<\/span><\/span><\/p>\n

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

Pin lithium-ion \u0111i\u1ec7n c\u00f3 \u01b0u \u0111i\u1ec3m l\u00e0 m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng cao, tu\u1ed5i th\u1ecd d\u00e0i, \u0111i\u1ec7n \u00e1p \u0111\u1ecbnh m\u1ee9c cao, kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i \u0111i\u1ec7n cao v\u00e0 hi\u1ec7u su\u1ea5t t\u1ef1 x\u1ea3 th\u1ea5p, \u0111\u00e3 tr\u1edf th\u00e0nh pin \u0111i\u1ec7n l\u00fd t\u01b0\u1edfng cho xe \u0111i\u1ec7n hybrid v\u00e0 xe \u0111i\u1ec7n thu\u1ea7n t\u00fay. Tuy nhi\u00ean, v\u1ea5n \u0111\u1ec1 an to\u00e0n c\u1ee7a<\/p>\n","protected":false},"author":1,"featured_media":19785,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[],"class_list":["post-19784","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\/19784","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=19784"}],"version-history":[{"count":4,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19784\/revisions"}],"predecessor-version":[{"id":22406,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19784\/revisions\/22406"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media\/19785"}],"wp:attachment":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=19784"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=19784"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=19784"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}