{"id":19897,"date":"2022-01-13T03:36:00","date_gmt":"2022-01-13T03:36:00","guid":{"rendered":"http:\/\/dgbellvietnam.com\/partial-testing-on-the-safety-of-lithium-battery-part-2\/"},"modified":"2024-10-25T15:30:20","modified_gmt":"2024-10-25T08:30:20","slug":"partial-testing-on-the-safety-of-lithium-battery-part-2","status":"publish","type":"post","link":"https:\/\/dgbellvietnam.com\/en\/partial-testing-on-the-safety-of-lithium-battery-part-2\/","title":{"rendered":"Th\u1eed nghi\u1ec7m th\u00e0nh ph\u1ea7n v\u1ec1 \u0111\u1ed9 an to\u00e0n c\u1ee7a pin lithium-Ph\u1ea7n 2"},"content":{"rendered":"
\n

Th\u1eed nghi\u1ec7m th\u1ea3 r\u01a1i<\/span><\/span><\/a><\/span><\/h1>\n

Ti\u00eau chu\u1ea9n qu\u1ed1c gia GB31241GB\/T18287 y\u00eau c\u1ea7u: pin lithium-ion s\u1ea1c \u0111\u1ea7y pin vu\u00f4ng s\u00e1u m\u1eb7t m\u1ed7i m\u1eb7t r\u01a1i m\u1ed9t l\u1ea7n, r\u01a1i xu\u1ed1ng \u0111\u1ea5t xi m\u0103ng, t\u1ed5ng c\u1ed9ng s\u00e1u l\u1ea7n r\u01a1i v\u1edbi chi\u1ec1u cao 1 m\u00e9t; C\u00e1c c\u1ef1c d\u01b0\u01a1ng v\u00e0 c\u1ef1c \u00e2m c\u1ee7a pin tr\u00f2n m\u1ed7i l\u1ea7n r\u01a1i m\u1ed9t l\u1ea7n v\u00e0 b\u1ec1 m\u1eb7t xi lanh r\u01a1i b\u1ed1n l\u1ea7n xu\u1ed1ng \u0111\u1ec9nh c\u1ee7a t\u1ea5m v\u00e1n 1 m\u00e9t. Sau khi k\u1ebft th\u00fac r\u01a1i t\u1ef1 do, sau n\u1eeda gi\u1edd \u0111\u1eb7t, h\u00e3y ki\u1ec3m tra \u0111i\u1ec7n \u00e1p v\u00e0 \u0111i\u1ec7n tr\u1edf b\u00ean trong, \u0111i\u1ec7n \u00e1p m\u1ea1ch h\u1edf kh\u00f4ng nh\u1ecf h\u01a1n 90% \u0111i\u1ec7n \u00e1p ban \u0111\u1ea7u, kh\u00f4ng r\u00f2 r\u1ec9, kh\u00f4ng ch\u00e1y v\u00e0 kh\u00f4ng n\u1ed5. Th\u1eed nghi\u1ec7m th\u1ea3 r\u01a1i ki\u1ec3m tra c\u00e1c l\u1ea7n r\u01a1i c\u00f3 th\u1ec3 x\u1ea3y ra trong m\u00f4i tr\u01b0\u1eddng v\u1eadn chuy\u1ec3n ho\u1eb7c trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng c\u1ee7a kh\u00e1ch h\u00e0ng; Theo quan \u0111i\u1ec3m an to\u00e0n, \u0111\u00f3 l\u00e0 \u0111\u1ec3 ph\u00e1t hi\u1ec7n hi\u1ec7u su\u1ea5t h\u00e0n k\u00edn c\u1ee7a pin. S\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m n\u00e0y, h\u00e3y t\u0103ng \u0111i\u1ec7n \u00e1p, \u0111i\u1ec7n tr\u1edf b\u00ean trong v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng tr\u01b0\u1edbc khi th\u1eed nghi\u1ec7m r\u01a1i; Sau 6 l\u1ea7n r\u01a1i, h\u00e3y \u0111o l\u1ea1i \u0111i\u1ec7n \u00e1p, \u0111i\u1ec7n tr\u1edf b\u00ean trong v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng theo \u0111i\u1ec7n \u00e1p, \u0111i\u1ec7n tr\u1edf b\u00ean trong v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh xem c\u00f3 \u0111\u1ee7 \u0111i\u1ec1u ki\u1ec7n hay kh\u00f4ng: n\u1ebfu \u0111i\u1ec7n tr\u1edf \u0111i\u1ec7n \u00e1p thay \u0111\u1ed5i l\u1edbn, kh\u1ea3 n\u0103ng x\u1ea3y ra \u0111o\u1ea3n m\u1ea1ch b\u00ean trong cao h\u01a1n; N\u1ebfu ch\u1ea5t l\u01b0\u1ee3ng thay \u0111\u1ed5i l\u1edbn v\u00e0 ph\u00e1t ra m\u00f9i, ch\u1ea5t \u0111i\u1ec7n ph\u00e2n b\u1ecb r\u00f2 r\u1ec9. Ti\u00eau chu\u1ea9n qu\u1ed1c gia GB31241GB\/T18287 y\u00eau c\u1ea7u ch\u1ea5t l\u1ecfng kh\u00f4ng \u0111\u01b0\u1ee3c r\u00f2 r\u1ec9; EUCAR quy \u0111\u1ecbnh r\u1eb1ng r\u00f2 r\u1ec9 ph\u1ea3i nh\u1ecf h\u01a1n 50% v\u00e0 m\u1ee9c \u0111\u1ed9 an to\u00e0n c\u1ee7a n\u00f3 c\u00f3 th\u1ec3 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c mi\u1ec5n l\u00e0 n\u00f3 kh\u00f4ng ph\u00e1t n\u1ed5 trong ng\u1ecdn l\u1eeda. Tuy nhi\u00ean, sau khi th\u1eed nghi\u1ec7m th\u1ea3 r\u01a1i, n\u1ebfu ch\u1ea5t \u0111i\u1ec7n ph\u00e2n ch\u1ec9 b\u1ecb r\u00f2 r\u1ec9 nh\u1eb9, do c\u00f3 s\u1ef1 b\u1ea3o v\u1ec7 c\u1ee7a pin PTC, pin b\u1ecb \u0111o\u1ea3n m\u1ea1ch \u1edf tr\u1ea1ng th\u00e1i \u0111\u00f3ng trong th\u1eddi gian ng\u1eafn, pin kh\u00f4ng c\u00f3 \u0111i\u1ec7n \u00e1p v\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 thay \u0111\u1ed5i b\u1ea5t th\u01b0\u1eddng v\u1ec1 \u0111i\u1ec7n tr\u1edf b\u00ean trong; Ch\u1ea5t \u0111i\u1ec7n ph\u00e2n r\u00f2 r\u1ec9 \u0111\u01b0\u1ee3c b\u00e1m v\u00e0o b\u1ec1 m\u1eb7t c\u1ee7a pin v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng thay \u0111\u1ed5i b\u1ea5t th\u01b0\u1eddng, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 kh\u00f3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c n\u00f3 c\u00f3 \u0111\u1ee7 ti\u00eau chu\u1ea9n hay kh\u00f4ng. Khi ch\u1ea5t \u0111i\u1ec7n ph\u00e2n b\u1ecb r\u00f2 r\u1ec9 nh\u1eb9, \u0111\u1ed1i v\u1edbi ch\u1ea5t \u0111i\u1ec7n ph\u00e2n th\u00f4ng th\u01b0\u1eddng l\u00e0 lithium hexafluorophosphate, <\/span><\/span>Trong kh\u00f4ng kh\u00ed do t\u00e1c \u0111\u1ed9ng c\u1ee7a h\u01a1i n\u01b0\u1edbc <\/span><\/span>v\u00e0 hydro fumisolated tr\u1eafng \u0111\u01b0\u1ee3c gi\u1ea3i ph\u00f3ng nhanh ch\u00f3ng. C\u00e1c ph\u1ea3n \u1ee9ng x\u1ea3y ra sau khi ti\u1ebfp x\u00fac v\u1edbi kh\u00f4ng kh\u00ed l\u00e0:<\/span><\/span><\/p>\n

<\/p>\n

Kh\u00f3i tr\u1eafng hydro florua c\u00f3 th\u1ec3 ph\u1ea3n \u1ee9ng v\u1edbi c\u00e1c kim lo\u1ea1i th\u00f4ng th\u01b0\u1eddng nh\u01b0 d\u00e2y v\u00e0 mi\u1ebfng \u0111\u1ec7m c\u1ee7a b\u1ea3ng m\u1ea1ch in, v\u00e0 gi\u1ea3i ph\u00f3ng hydro \u0111\u1ec3 t\u1ea1o th\u00e0nh h\u1ed7n h\u1ee3p n\u1ed5 v\u1edbi kh\u00f4ng kh\u00ed; Hydro florua ph\u1ea3n \u1ee9ng v\u1edbi h\u1ee3p ch\u1ea5t silicon r\u1eafn (c\u00e1c) c\u1ee7a PCB \u0111\u1ec3 t\u1ea1o th\u00e0nh tetrafluoride silicon d\u1ea1ng kh\u00ed (g), ch\u1ea5t \u0111\u01b0\u1ee3c t\u1ea1o ra <\/span><\/span>
\nc\u00f3 th\u1ec3 ti\u1ebfp t\u1ee5c t\u01b0\u01a1ng t\u00e1c v\u1edbi HF d\u01b0 \u0111\u1ec3 t\u1ea1o ra dung d\u1ecbch axit fluorosilicic, \u0111\u00e2y l\u00e0 m\u1ed9t axit m\u1ea1nh nh\u1ecb ph\u00e2n ti\u1ebfp t\u1ee5c \u0103n m\u00f2n b\u1ea3ng m\u1ea1ch; Do ph\u1ea3n \u1ee9ng r\u00f2 r\u1ec9 nh\u1eb9 \u0111\u1ec3 t\u1ea1o ra HF v\u00e0 sau \u0111\u00f3 \u0103n m\u00f2n c\u00e1c mi\u1ebfng \u0111\u1ec7m d\u00e2y c\u1ee7a b\u1ea3ng m\u1ea1ch, v.v., m\u1ed9t dung d\u1ecbch silicat \u0111i\u1ec7n ph\u00e2n d\u1eabn \u0111i\u1ec7n \u0111\u00e3 d\u1ea7n \u0111\u01b0\u1ee3c t\u1ea1o ra. Ch\u1ea5t \u0111i\u1ec7n ph\u00e2n r\u00f2 r\u1ec9 r\u1ea5t \u00edt, hydro florua \u0111\u01b0\u1ee3c t\u1ea1o ra c\u00f3 th\u1ec3 bay h\u01a1i nhanh ch\u00f3ng, kim lo\u1ea1i \u0103n m\u00f2n \u00edt h\u01a1n v\u00e0 kh\u00f4ng kh\u00ed \u0111i\u1ec7n ph\u00e2n kh\u00f4 v\u00e0 pin c\u00f3 th\u1ec3 h\u00ecnh th\u00e0nh tr\u1ea1ng th\u00e1i t\u1ef1 ph\u00f3ng \u0111i\u1ec7n ch\u1eadm \u1edf giai \u0111o\u1ea1n sau. N\u1ebfu r\u00f2 r\u1ec9 ch\u1ea5t \u0111i\u1ec7n ph\u00e2n v\u01b0\u1ee3t qu\u00e1 m\u1ed9t l\u01b0\u1ee3ng nh\u1ea5t \u0111\u1ecbnh, ph\u1ea3n \u1ee9ng gh\u00e9p n\u1ed1i ti\u1ebfp theo s\u1ebd x\u1ea3y ra g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng \u0111o\u1ea3n m\u1ea1ch c\u1ee5c b\u1ed9 tr\u00ean b\u1ea3ng m\u1ea1ch in b\u00ean ngo\u00e0i c\u1ee7a pin, ph\u1ea3n \u1ee9ng n\u00e0y k\u00e9o d\u00e0i trong th\u1eddi gian d\u00e0i (12h) \u0110\u1ed9 d\u1eabn \u0111i\u1ec7n c\u1ee7a dung d\u1ecbch ch\u1ea5t \u0111i\u1ec7n ph\u00e2n \u1edf giai \u0111o\u1ea1n \u0111\u1ea7u y\u1ebfu, v\u00e0 s\u1ef1 \u0103n m\u00f2n c\u1ee7a dung d\u1ecbch ch\u1ea5t \u0111i\u1ec7n ph\u00e2n b\u1ecb r\u00f2 r\u1ec9 theo th\u1eddi gian ph\u1ea3n \u1ee9ng l\u00e0m t\u0103ng \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n c\u1ee7a c\u00e1c ion kim lo\u1ea1i, \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n \u0111\u01b0\u1ee3c t\u0103ng c\u01b0\u1eddng t\u1ea1o th\u00e0nh hi\u1ec7n t\u01b0\u1ee3ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 \u0111o\u1ea3n m\u1ea1ch b\u00ean ngo\u00e0i, pin s\u1ebd n\u00f3ng l\u00ean nhanh ch\u00f3ng v\u00e0 c\u00f3 nguy c\u01a1 ch\u00e1y n\u1ed5. Do \u0111\u00f3, trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m, pin \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf n\u01a1i an to\u00e0n trong 12 gi\u1edd v\u00e0 sau \u0111\u00f3 quan s\u00e1t l\u1ea1i \u0111\u1ec3 t\u00ecm b\u1ea5t th\u01b0\u1eddng; Sau \u0111\u00f3, m\u1ed9t T\u1ef7 l\u1ec7 C nh\u1ea5t \u0111\u1ecbnh s\u1ebd ki\u1ec3m tra hi\u1ec7u su\u1ea5t nh\u01b0 dung l\u01b0\u1ee3ng.<\/span><\/span><\/p>\n

Th\u1eed nghi\u1ec7m l\u1ea1m d\u1ee5ng nhi\u1ec7t<\/span><\/span><\/a><\/span><\/h1>\n

S\u1ea1c \u0111\u1ea7y pin, sau \u0111\u00f3 \u0111\u1eb7t pin v\u00e0o bu\u1ed3ng <\/span><\/span>,<\/span><\/span><\/a> l\u00e0m n\u00f3ng v\u1edbi t\u1ed1c \u0111\u1ed9 3 \u00b0C\/ph\u00fat theo t\u1ed1c \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u, nhi\u1ec7t \u0111\u1ed9 t\u0103ng l\u00ean 130 \u00b0C \u0111\u1ec3 ng\u1eebng gi\u1eef trong n\u1eeda gi\u1edd. Trong th\u1eddi gian y\u00eau c\u1ea7u pin kh\u00f4ng ch\u00e1y v\u00e0 kh\u00f4ng n\u1ed5. Khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng khi h\u1ec7 th\u1ed1ng pin b\u1ea5t th\u01b0\u1eddng, \u0111\u1ec3 ng\u0103n ng\u1eeba nguy hi\u1ec3m, m\u00e0ng ng\u0103n c\u00e1ch nhi\u1ec7t d\u1ebbo n\u00f3ng ch\u1ea3y (120 \u00b0C ~ 140 \u00b0C) C\u00e1c l\u1ed7 nh\u1ecf c\u1ee7a m\u00e0ng c\u00e1ch ly \u0111\u00f3ng l\u1ea1i v\u00e0 tr\u1edf th\u00e0nh ch\u1ea5t c\u00e1ch \u0111i\u1ec7n \u0111\u1ec3 ng\u0103n ch\u1ea5t \u0111i\u1ec7n ph\u00e2n \u0111i qua, \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c \u0111\u00edch ch\u1eb7n d\u00f2ng \u0111i\u1ec7n. \u1ede nhi\u1ec7t \u0111\u1ed9 cao, m\u00e0ng c\u00e1ch \u0111i\u1ec7n b\u00ean trong c\u1ee7a pin b\u1ecb co nhi\u1ec7t qu\u00e1 l\u1edbn, d\u1eabn \u0111\u1ebfn \u0111o\u1ea3n m\u1ea1ch gi\u1eefa c\u00e1c m\u1ea3nh \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng v\u00e0 \u00e2m b\u00ean trong, pin ch\u1ecbu t\u00e1c \u0111\u1ed9ng li\u00ean t\u1ee5c c\u1ee7a khoang ngu\u1ed3n nhi\u1ec7t b\u00ean ngo\u00e0i, trong khi d\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch pin b\u00ean trong Q hai lo\u1ea1i nhi\u1ec7t \u0111\u1ec3 th\u00fac \u0111\u1ea9y m\u00e0ng c\u00e1ch \u0111i\u1ec7n pin ti\u1ebfp t\u1ee5c co l\u1ea1i g\u00e2y ra nhi\u1ec1u \u0111o\u1ea3n m\u1ea1ch b\u00ean trong h\u01a1n, v\u00f2ng lu\u1ea9n qu\u1ea9n c\u1ee7a nhi\u1ec7t b\u00ean trong pin cho th\u1ea5y s\u1ef1 gia t\u0103ng theo c\u1ea5p s\u1ed1 nh\u00e2n, v\u00ec l\u1edbp c\u00e1ch \u0111i\u1ec7n c\u1ee7a khoang trong 30 ph\u00fat Pin kh\u00f4ng th\u1ec3 t\u1ea3n nhi\u1ec7t nhanh ch\u00f3ng t\u00edch t\u1ee5 nhi\u1ec7t v\u00e0 cu\u1ed1i c\u00f9ng d\u1eabn \u0111\u1ebfn pin b\u1ecb m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t. Trong \u0111i\u1ec1u ki\u1ec7n l\u1ea1m d\u1ee5ng nhi\u1ec7t, sau khi pin ph\u00e1t n\u1ed5, cell pin b\u1ecb h\u1ecfng v\u00e0 r\u1ea5t kh\u00f3 \u0111\u1ec3 ph\u00e2n t\u00edch nguy\u00ean nh\u00e2n g\u00e2y ra v\u1ee5 n\u1ed5. Do \u0111\u00f3, trong th\u1eed nghi\u1ec7m n\u00e0y, c\u1ea7n ph\u1ea3i ph\u00e1t hi\u1ec7n nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t c\u1ee7a m\u1ed9t pin duy nh\u1ea5t \u0111\u1ec3 ph\u00e1t hi\u1ec7n s\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 c\u1ee7a pin. \u0110\u1ed3ng th\u1eddi, trong h\u1ed9p nhi\u1ec7t k\u00edn, n\u1ebfu c\u00f3 nhi\u1ec1u pin \u0111\u1ec3 th\u1eed nghi\u1ec7m c\u00f9ng m\u1ed9t l\u00fac, m\u1ed9t l\u01b0\u1ee3ng nhi\u1ec7t t\u1ea3n ra l\u1edbn sau khi pin ph\u00e1t n\u1ed5, trong kh\u00f4ng gian nh\u1ecf c\u1ee7a bu\u1ed3ng, m\u1ed9t kho\u1ea3ng th\u1eddi gian ng\u1eafn \u0111\u1ec3 thu th\u1eadp nhi\u1ec7t, c\u00f3 th\u1ec3 ngay l\u1eadp t\u1ee9c l\u00e0m t\u0103ng nhi\u1ec7t \u0111\u1ed9 c\u1ee7a bu\u1ed3ng, v\u01b0\u1ee3t xa 130 \u00b0 C, g\u00e2y ra ph\u1ea3n \u1ee9ng ch\u00e1y n\u1ed5 c\u1ee7a c\u00e1c pin th\u00f4ng th\u01b0\u1eddng kh\u00e1c. \u0110\u1ec3 ng\u0103n ng\u1eeba s\u1ef1 bi\u1ebfn d\u1ea1ng th\u00ed nghi\u1ec7m, t\u1ed1t nh\u1ea5t l\u00e0 treo pin trong bu\u1ed3ng; T\u1ed1t h\u01a1n l\u00e0 ch\u1ec9 \u0111\u1eb7t m\u1ed9t pin trong bu\u1ed3ng t\u00edch h\u1ee3p cho m\u1ed7i l\u1ea7n th\u00ed nghi\u1ec7m.<\/span><\/span><\/p>\n

Ph\u1ea7n k\u1ebft lu\u1eadn<\/span><\/span><\/span><\/h1>\n

V\u1edbi y\u00eau c\u1ea7u c\u1ee7a ng\u01b0\u1eddi d\u00f9ng v\u1ec1 m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng c\u1ee7a pin lithium-ion, hi\u1ec7u su\u1ea5t an to\u00e0n c\u1ee7a pin lithium \u0111ang ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi nh\u1eefng th\u00e1ch th\u1ee9c ng\u00e0y c\u00e0ng t\u0103ng. \u0110\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c \u0111\u00edch n\u00e0y, c\u00e1c doanh nghi\u1ec7p nghi\u00ean c\u1ee9u c\u00e1c bi\u1ec7n ph\u00e1p an to\u00e0n ch\u1ee7 \u0111\u1ed9ng nh\u01b0 ch\u1ea5t ch\u1ed1ng ch\u00e1y m\u1edbi v\u00e0 dung m\u00f4i m\u1edbi, c\u0169ng nh\u01b0 c\u00e1c bi\u1ec7n ph\u00e1p an to\u00e0n th\u1ee5 \u0111\u1ed9ng nh\u01b0 l\u00e0m y\u1ebfu c\u1ee5c b\u1ed9 v\u1ecf v\u00e0 v\u1ecf v\u1eadt li\u1ec7u m\u1edbi. M\u1ee9c \u0111\u1ed9 hi\u1ec7u qu\u1ea3 c\u1ee7a c\u00e1c bi\u1ec7n ph\u00e1p m\u1edbi n\u00e0y v\u00e0 c\u00e1c th\u1eed nghi\u1ec7m gi\u1edbi h\u1ea1n c\u00f3 li\u00ean quan \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n, gi\u00fap c\u00e1c c\u00f4ng ty s\u1ea3n xu\u1ea5t ra c\u00e1c s\u1ea3n ph\u1ea9m an to\u00e0n h\u01a1n. K\u1ebft h\u1ee3p v\u1edbi c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c gia, m\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m an to\u00e0n \u0111\u01b0\u1ee3c th\u1ea3o lu\u1eadn v\u00e0 c\u00e1c nguy\u00ean t\u1eafc li\u00ean quan c\u1ee7a th\u1eed nghi\u1ec7m l\u1ea1m d\u1ee5ng nhi\u1ec7t r\u01a1i kim ch\u00e2m ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c ph\u00e2n t\u00edch, c\u00e1c \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m v\u00e0 ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn k\u1ebft qu\u1ea3 trong th\u1eed nghi\u1ec7m th\u1ef1c t\u1ebf \u0111\u01b0\u1ee3c th\u1ea3o lu\u1eadn v\u00e0 m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 ti\u1ec1m \u1ea9n g\u00e2y ra s\u1ef1 c\u1ed1 c\u1ee7a th\u1eed nghi\u1ec7m \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t. N\u00f3 c\u00f3 th\u1ec3 cung c\u1ea5p t\u00e0i li\u1ec7u tham kh\u1ea3o cho c\u00e1c doanh nghi\u1ec7p s\u1ea3n xu\u1ea5t v\u00e0 \u0111\u01a1n v\u1ecb th\u1eed nghi\u1ec7m \u0111\u1ec3 ph\u00e2n t\u00edch c\u00e1c ch\u1ebf \u0111\u1ed9 h\u1ecfng s\u1ea3n ph\u1ea9m, sau \u0111\u00f3 gi\u00fap c\u00e1c doanh nghi\u1ec7p ng\u0103n ng\u1eeba c\u00e1c t\u00ecnh hu\u1ed1ng c\u1ef1c \u0111oan nh\u01b0 ch\u00e1y n\u1ed5 pin, s\u1ea3n xu\u1ea5t c\u00e1c s\u1ea3n ph\u1ea9m an to\u00e0n h\u01a1n v\u00e0 th\u00fac \u0111\u1ea9y s\u1ef1 ph\u00e1t tri\u1ec3n \u1ed5n \u0111\u1ecbnh c\u1ee7a pin lithium v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m ph\u00e1i sinh.<\/span><\/span><\/p>\n

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

Th\u1eed nghi\u1ec7m th\u1ea3 r\u01a1i Ti\u00eau chu\u1ea9n qu\u1ed1c gia GB31241GB\/T18287 y\u00eau c\u1ea7u: pin lithium-ion s\u1ea1c \u0111\u1ea7y pin vu\u00f4ng s\u00e1u m\u1eb7t m\u1ed7i m\u1eb7t r\u01a1i m\u1ed9t l\u1ea7n, r\u01a1i xu\u1ed1ng \u0111\u1ea5t xi m\u0103ng, t\u1ed5ng c\u1ed9ng s\u00e1u l\u1ea7n r\u01a1i v\u1edbi chi\u1ec1u cao 1 m\u00e9t; C\u00e1c c\u1ef1c d\u01b0\u01a1ng v\u00e0 c\u1ef1c \u00e2m c\u1ee7a pin tr\u00f2n m\u1ed7i l\u1ea7n r\u01a1i m\u1ed9t l\u1ea7n v\u00e0 b\u1ec1<\/p>\n","protected":false},"author":1,"featured_media":19898,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[],"class_list":["post-19897","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\/19897","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=19897"}],"version-history":[{"count":3,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19897\/revisions"}],"predecessor-version":[{"id":22101,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19897\/revisions\/22101"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media\/19898"}],"wp:attachment":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=19897"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=19897"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=19897"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}