{"id":19650,"date":"2023-10-12T01:41:03","date_gmt":"2023-10-12T01:41:03","guid":{"rendered":"http:\/\/dgbellvietnam.com\/ev-power-battery-system-test-knowledge-part-1\/"},"modified":"2024-10-21T16:32:27","modified_gmt":"2024-10-21T09:32:27","slug":"ev-power-battery-system-test-knowledge-part-1","status":"publish","type":"post","link":"https:\/\/dgbellvietnam.com\/en\/ev-power-battery-system-test-knowledge-part-1\/","title":{"rendered":"Ki\u1ebfn th\u1ee9c th\u1eed nghi\u1ec7m h\u1ec7 th\u1ed1ng pin \u0111i\u1ec7n EV \u2013 Ph\u1ea7n 1"},"content":{"rendered":"
\n

Nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, tr\u00ecnh \u0111\u1ed9 ph\u00e1t tri\u1ec3n kinh t\u1ebf qu\u1ed1c d\u00e2n \u0111\u01b0\u1ee3c n\u00e2ng cao, khoa h\u1ecdc c\u00f4ng ngh\u1ec7 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng, c\u00f4ng ngh\u1ec7 n\u0103ng l\u01b0\u1ee3ng m\u1edbi \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u v\u00e0 \u1ee9ng d\u1ee5ng s\u00e2u r\u1ed9ng. V\u00ec m\u1ee5c \u0111\u00edch ph\u00e1t tri\u1ec3n xanh v\u00e0 b\u1ec1n v\u1eefng, ng\u00e0y c\u00e0ng c\u00f3 nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p d\u1ea7n ph\u00e1t tri\u1ec3n theo h\u01b0\u1edbng n\u0103ng l\u01b0\u1ee3ng m\u1edbi. Ng\u00e0y nay, xe n\u0103ng l\u01b0\u1ee3ng m\u1edbi d\u1ea7n tr\u1edf th\u00e0nh h\u01b0\u1edbng s\u1ea3n xu\u1ea5t di \u0111\u1ed9ng quan tr\u1ecdng. Trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t lo\u1ea1i \u00f4 t\u00f4 n\u00e0y, b\u1ed9 ph\u1eadn quan tr\u1ecdng nh\u1ea5t l\u00e0 h\u1ec7 th\u1ed1ng \u1eafc quy \u0111i\u1ec7n, \u0111\u00e2y l\u00e0 b\u1ed9 ph\u1eadn then ch\u1ed1t quy\u1ebft \u0111\u1ecbnh s\u1ef1 v\u1eadn h\u00e0nh an to\u00e0n v\u00e0 \u1ed5n \u0111\u1ecbnh c\u1ee7a \u00f4 t\u00f4.<\/span><\/span><\/p>\n

An ninh n\u0103ng l\u01b0\u1ee3ng v\u00e0 kh\u1ee7ng ho\u1ea3ng m\u00f4i tr\u01b0\u1eddng \u0111ang ng\u00e0y c\u00e0ng tr\u1edf n\u00ean nghi\u00eam tr\u1ecdng, c\u00e1c qu\u1ed1c gia tr\u00ean th\u1ebf gi\u1edbi \u0111ang th\u1ef1c hi\u1ec7n nhi\u1ec1u bi\u1ec7n ph\u00e1p \u0111a d\u1ea1ng \u0111\u1ec3 gi\u1ea3m ph\u00e1t th\u1ea3i ch\u1ea5t \u00f4 nhi\u1ec5m c\u00f3 h\u1ea1i v\u00e0 ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng. Vi\u1ec7c t\u00edch c\u1ef1c ph\u00e1t tri\u1ec3n c\u00e1c lo\u1ea1i xe n\u0103ng l\u01b0\u1ee3ng m\u1edbi, v\u1edbi \u0111\u1ea1i di\u1ec7n l\u00e0 xe \u0111i\u1ec7n v\u00e0 xe hybrid, \u0111\u00e3 tr\u1edf th\u00e0nh s\u1ef1 \u0111\u1ed3ng thu\u1eadn qu\u1ed1c t\u1ebf v\u00e0 l\u00e0 m\u1ed9t trong nh\u1eefng chi\u1ebfn l\u01b0\u1ee3c quan tr\u1ecdng c\u1ee7a Trung Qu\u1ed1c.<\/span><\/span><\/p>\n

Lithium ion \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c l\u0129nh v\u1ef1c xe n\u0103ng l\u01b0\u1ee3ng m\u1edbi v\u00e0 nh\u00e0 m\u00e1y \u0111i\u1ec7n l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng, v\u1edbi \u01b0u \u0111i\u1ec3m ch\u1ee7 y\u1ebfu l\u00e0 m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng cao, m\u1eadt \u0111\u1ed9 c\u00f4ng su\u1ea5t cao v\u00e0 tu\u1ed5i th\u1ecd d\u00e0i. V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng c\u1ee7a xe n\u0103ng l\u01b0\u1ee3ng m\u1edbi, s\u1ed1 v\u1ee5 ch\u00e1y n\u1ed5 \u0111\u01b0\u1ee3c b\u00e1o c\u00e1o \u0111\u00e3 t\u0103ng l\u00ean trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, cho th\u1ea5y t\u1ef7 l\u1ec7 tai n\u1ea1n xe n\u0103ng l\u01b0\u1ee3ng m\u1edbi do s\u1ef1 c\u1ed1 pin \u0111i\u1ec7n t\u01b0\u01a1ng \u0111\u1ed1i cao. Lo\u1ea1i h\u1ecfng pin n\u00e0y ch\u1ee7 y\u1ebfu li\u00ean quan \u0111\u1ebfn vi\u1ec7c s\u1ea1c qu\u00e1 m\u1ee9c, x\u1ea3 qu\u00e1 m\u1ee9c v\u00e0 qu\u00e1 nhi\u1ec7t, c\u00f3 th\u1ec3 khi\u1ebfn nhi\u1ec7t \u0111\u1ed9 v\u00e0 gi\u00e1 tr\u1ecb \u00e1p su\u1ea5t b\u00ean trong c\u1ee7a b\u1ed9 pin t\u0103ng l\u00ean, khi\u1ebfn h\u1ec7 th\u1ed1ng pin m\u1ea5t ki\u1ec3m so\u00e1t.<\/span><\/span><\/p>\n

\u0110\u1ec3 tr\u00e1nh tai n\u1ea1n <\/span><\/span>an to\u00e0n c\u1ee7a xe n\u0103ng l\u01b0\u1ee3ng m\u1edbi<\/span><\/span><\/a> , c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u c\u00f3 li\u00ean quan hi\u1ec7n \u0111ang tri\u1ec3n khai c\u00f4ng t\u00e1c ch\u1ea9n \u0111o\u00e1n l\u1ed7i pin to\u00e0n di\u1ec7n v\u00e0 qu\u1ea3n l\u00fd an to\u00e0n t\u1eeb c\u1ea3 n\u1ec1n t\u1ea3ng tr\u00ean bo m\u1ea1ch v\u00e0 n\u1ec1n t\u1ea3ng \u0111\u00e1m m\u00e2y. Tr\u01b0\u1edbc \u0111\u00e2y, h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd pin tr\u00ean bo m\u1ea1ch \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 t\u00ecnh tr\u1ea1ng s\u1ea1c v\u00e0 t\u00ecnh tr\u1ea1ng s\u1ee9c kh\u1ecfe th\u1ef1c t\u1ebf c\u1ee7a b\u1ed9 pin b\u1eb1ng c\u00e1ch ph\u00e1t hi\u1ec7n c\u00e1c th\u00f4ng s\u1ed1 \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n c\u1ee7a n\u00f3, nh\u1eb1m \u0111\u1ea3m b\u1ea3o an to\u00e0n cho pin \u0111i\u1ec7n. Tuy nhi\u00ean, do nh\u1eefng h\u1ea1n ch\u1ebf c\u1ee7a BMS trong qu\u00e1 tr\u00ecnh n\u00e0y, chi\u1ebfn l\u01b0\u1ee3c c\u1ea3nh b\u00e1o an to\u00e0n t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u01a1n gi\u1ea3n v\u00e0 kh\u00f4ng th\u1ec3 ki\u1ec3m so\u00e1t an to\u00e0n c\u1ee7a h\u1ec7 th\u1ed1ng pin theo th\u1eddi gian th\u1ef1c.<\/span><\/span><\/p>\n

\u0110\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 tr\u00ean, c\u1ea7n coi tr\u1ecdng c\u00f4ng ngh\u1ec7 ch\u1ea9n \u0111o\u00e1n l\u1ed7i n\u1ec1n t\u1ea3ng t\u1eeb xa v\u00e0 c\u1ea3nh b\u00e1o s\u1edbm. V\u1edbi s\u1ef1 tr\u1ee3 gi\u00fap c\u1ee7a thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i tr\u00ean t\u00e0u, d\u1eef li\u1ec7u h\u1ec7 th\u1ed1ng pin \u0111i\u1ec7n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c truy\u1ec1n \u0111\u1ebfn n\u1ec1n t\u1ea3ng \u0111\u00e1m m\u00e2y d\u1eef li\u1ec7u l\u1edbn c\u1ee7a xe n\u0103ng l\u01b0\u1ee3ng m\u1edbi v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ch\u1ea9n \u0111o\u00e1n l\u1ed7i pin \u0111i\u1ec7n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n t\u00edch to\u00e0n di\u1ec7n b\u1eb1ng c\u00e1ch kh\u00e1m ph\u00e1 d\u1eef li\u1ec7u l\u1edbn.<\/span><\/span><\/p>\n

1 H\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd pin \u0111i\u1ec7n<\/span><\/span><\/strong><\/span><\/span><\/h1>\n

Trong l\u0129nh v\u1ef1c xe n\u0103ng l\u01b0\u1ee3ng m\u1edbi, h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd pin \u0111i\u1ec7n c\u00f3 hai ch\u1ee9c n\u0103ng ch\u00ednh: m\u1ed9t l\u00e0 theo d\u00f5i c\u00e1c th\u00f4ng s\u1ed1 hi\u1ec7u su\u1ea5t pin theo th\u1eddi gian th\u1ef1c. Hai l\u00e0 ki\u1ec3m so\u00e1t hi\u1ec7u qu\u1ea3 <\/span><\/span>nhi\u1ec7t \u0111\u1ed9 pin<\/span><\/span><\/a> d\u1ef1a tr\u00ean m\u00f4i tr\u01b0\u1eddng \u1ee9ng d\u1ee5ng \u0111\u1ec3 tr\u00e1nh gi\u00e1 tr\u1ecb nhi\u1ec7t \u0111\u1ed9 pin qu\u00e1 cao ho\u1eb7c qu\u00e1 th\u1ea5p, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn tu\u1ed5i th\u1ecd v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a pin.<\/span><\/span><\/p>\n

Trong qu\u00e1 tr\u00ecnh n\u00e0y, h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd pin b\u1ecb tr\u1ee5c tr\u1eb7c, h\u1ea1n ch\u1ebf c\u00e1c ch\u1ee9c n\u0103ng tr\u00ean v\u00e0 ng\u0103n ch\u1eb7n vi\u1ec7c d\u1ef1 \u0111o\u00e1n hi\u1ec7u qu\u1ea3 c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 tu\u00e2n th\u1ee7 pin. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 khi\u1ebfn pin m\u1ea5t kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t hi\u1ec7u qu\u1ea3, l\u00e0m h\u1ecfng pin v\u00e0 trong tr\u01b0\u1eddng h\u1ee3p nghi\u00eam tr\u1ecdng, g\u00e2y ra l\u1ed7i l\u00e1i xe, \u0111e d\u1ecda \u0111\u1ebfn t\u00ednh m\u1ea1ng v\u00e0 an to\u00e0n t\u00e0i s\u1ea3n c\u1ee7a m\u1ecdi ng\u01b0\u1eddi.<\/span><\/span><\/p>\n

2 Ph\u00e2n t\u00edch l\u1ed7i n\u1ed9i b\u1ed9<\/span><\/span><\/strong><\/span><\/span><\/h1>\n

2.1 V\u1ea5n \u0111\u1ec1 s\u1ea1c qu\u00e1 m\u1ee9c<\/span><\/span><\/strong><\/span><\/h2>\n

Ngu\u1ed3n \u0111i\u1ec7n c\u1ee7a xe \u0111\u00e1p \u1ee9ng hi\u1ec7u qu\u1ea3 c\u00e1c y\u00eau c\u1ea7u v\u1ec1 \u0111i\u1ec7n \u00e1p v\u00e0 dung l\u01b0\u1ee3ng. H\u1ec7 th\u1ed1ng \u1eafc quy \u0111i\u1ec7n bao g\u1ed3m c\u00e1c \u1eafc quy \u0111\u01a1n \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i n\u1ed1i ti\u1ebfp ho\u1eb7c song song. Tuy nhi\u00ean, do l\u1ed7i s\u1ea3n xu\u1ea5t v\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c, \u1eafc quy \u0111\u01a1n th\u01b0\u1eddng g\u1eb7p ph\u1ea3i s\u1ef1 kh\u00f4ng nh\u1ea5t qu\u00e1n.<\/span><\/span><\/p>\n

Trong qu\u00e1 tr\u00ecnh s\u1ea1c xe, b\u1ed9 s\u1ea1c b\u1ecb l\u1ed7i ho\u1eb7c h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd ph\u00e1t hi\u1ec7n v\u00e0 \u01b0\u1edbc t\u00ednh kh\u00f4ng ch\u00ednh x\u00e1c t\u00ecnh tr\u1ea1ng pin c\u00f3 th\u1ec3 g\u00e2y ra s\u1ef1 c\u1ed1 s\u1ea1c qu\u00e1 m\u1ee9c \u1edf m\u1ed9t s\u1ed1 lo\u1ea1i pin.<\/span><\/span><\/p>\n

T\u1ed5ng gi\u00e1 tr\u1ecb \u0111i\u1ec7n \u00e1p c\u1ee7a h\u1ec7 th\u1ed1ng pin v\u01b0\u1ee3t xa gi\u00e1 tr\u1ecb gi\u1edbi h\u1ea1n tr\u00ean c\u1ee7a n\u00f3 v\u00e0 m\u1ed9t s\u1ed1 pin ri\u00eang l\u1ebb v\u1eabn c\u00f3 th\u1ec3 b\u1ecb s\u1ea1c qu\u00e1 m\u1ee9c. S\u1ea1c qu\u00e1 m\u1ee9c pin lithium-ion c\u00f3 th\u1ec3 g\u00e2y ra ph\u1ea3n \u1ee9ng \u0111i\u1ec7n h\u00f3a b\u00ean trong v\u00e0 m\u1ea5t ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng, l\u00e0m t\u0103ng gi\u00e1 tr\u1ecb nhi\u1ec7t \u0111\u1ed9 c\u1ee7a b\u1ed9 pin, t\u00edch t\u1ee5 kh\u00ed v\u00e0 g\u00e2y n\u1ed5 pin.<\/span><\/span><\/p>\n

2.2 V\u1ea5n \u0111\u1ec1 x\u1ea3 qu\u00e1 m\u1ee9c<\/span><\/span><\/strong><\/span><\/h2>\n

Nh\u00ecn chung, vi\u1ec7c thi\u1ebft l\u1eadp \u0111i\u1ec7n \u00e1p c\u1eaft x\u1ea3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 tr\u00e1nh l\u1ed7i x\u1ea3 qu\u00e1 m\u1ee9c. Tuy nhi\u00ean, do t\u00e1c \u0111\u1ed9ng c\u1ee7a d\u00f2ng \u0111i\u1ec7n l\u1edbn, thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd pin \u0111i\u1ec7n kh\u00f4ng h\u1ee3p l\u00fd v\u00e0 th\u1eddi gian l\u01b0u tr\u1eef pin t\u01b0\u01a1ng \u0111\u1ed1i d\u00e0i, c\u00e1c y\u1ebfu t\u1ed1 l\u1ed7i n\u00e0y v\u1eabn l\u00e0 v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p trong giai \u0111o\u1ea1n \u1ee9ng d\u1ee5ng c\u1ee7a xe \u0111i\u1ec7n.<\/span><\/span><\/p>\n

Trong qu\u00e1 tr\u00ecnh x\u1ea3 qu\u00e1 m\u1ee9c, kh\u1ea3 n\u0103ng tr\u00edch xu\u1ea5t ion lithium \u1edf tr\u1ea1ng th\u00e1i \u0111i\u1ec7n c\u1ef1c \u00e2m s\u1ebd gi\u1ea3m, trong khi \u0111i\u1ec7n \u00e1p ph\u00e2n c\u1ef1c c\u1ee7a pin s\u1ebd t\u0103ng. B\u1ed9 thu \u0111\u1ed3ng \u0111i\u1ec7n c\u1ef1c \u00e2m s\u1ebd tr\u1edf th\u00e0nh c\u00e1c ion \u0111\u1ed3ng d\u01b0\u1edbi d\u1ea1ng oxy h\u00f3a v\u00e0 d\u1ea7n d\u1ea7n h\u00f2a tan trong ch\u1ea5t \u0111i\u1ec7n ph\u00e2n. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y s\u1ebd l\u00e0m t\u0103ng gi\u00e1 tr\u1ecb t\u1ed1c \u0111\u1ed9 t\u1ef1 x\u1ea3 c\u1ee7a pin \u0111i\u1ec7n. H\u00e0nh vi x\u1ea3 qu\u00e1 m\u1ee9c n\u00e0y s\u1ebd kh\u00f4ng tr\u1ef1c ti\u1ebfp g\u00e2y ra c\u00e1c v\u1ea5n \u0111\u1ec1 m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t, nh\u01b0ng s\u1ebd g\u00e2y m\u1ea5t dung l\u01b0\u1ee3ng ho\u1eb7c thay \u0111\u1ed5i \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t, T\u00e1c \u0111\u1ed9ng \u0111\u1ebfn kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng c\u1ee7a c\u00e1c \u0111i\u1ec1u ki\u1ec7n l\u1ea1m d\u1ee5ng pin \u0111i\u1ec7n c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c tai n\u1ea1n nguy hi\u1ec3m trong qu\u00e1 tr\u00ecnh s\u1ea1c l\u1ea1i ho\u1eb7c s\u1eed d\u1ee5ng.<\/span><\/span><\/p>\n

2.3 V\u1ea5n \u0111\u1ec1 qu\u00e1 nhi\u1ec7t<\/span><\/span><\/strong><\/span><\/h2>\n

Pin \u0111i\u1ec7n, d\u00f9 \u0111\u00e3 s\u1ea1c hay x\u1ea3, \u0111\u1ec1u s\u1ebd ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi chuy\u1ec3n \u0111\u1ed9ng \u0111i\u1ec7n t\u1eed m\u1ea1nh, c\u00f3 th\u1ec3 t\u1ea1o ra hi\u1ec7u \u1ee9ng nhi\u1ec7t. Trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p, pin c\u00f3 th\u1ec3 n\u00f3ng b\u1ea5t th\u01b0\u1eddng v\u00e0 c\u00e1c ph\u1ea3n \u1ee9ng ph\u1ee5, \u0111o\u1ea3n m\u1ea1ch b\u00ean ngo\u00e0i v\u00e0 \u0111o\u1ea3n m\u1ea1ch b\u00ean trong c\u00f3 th\u1ec3 x\u1ea3y ra trong qu\u00e1 tr\u00ecnh s\u1ea1c v\u00e0 x\u1ea3 qu\u00e1 m\u1ee9c. D\u1ef1a tr\u00ean b\u1ed1i c\u1ea3nh c\u1ee7a \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 cao, pin lithium-ion s\u1ebd tr\u1ea3i qua m\u1ed9t m\u1ee9c \u0111\u1ed9 gi\u00e3n n\u1edf nh\u1ea5t \u0111\u1ecbnh, t\u0103ng tr\u1edf kh\u00e1ng v\u00e0 r\u00fat ng\u1eafn th\u1eddi gian chu k\u1ef3.<\/span><\/span><\/p>\n

Trong chu k\u1ef3 s\u1ea1c t\u1ed1c \u0111\u1ed9 cao, nhi\u1ec7t s\u1ebd ti\u1ebfp t\u1ee5c t\u00edch t\u1ee5 trong pin, khi\u1ebfn gi\u00e1 tr\u1ecb nhi\u1ec7t \u0111\u1ed9 t\u0103ng d\u1ea7n v\u00e0 t\u0103ng nguy c\u01a1 m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t. Pin qu\u00e1 n\u00f3ng s\u1ebd r\u00fat ng\u1eafn th\u1eddi gian ph\u00e2n h\u1ee7y c\u1ee7a v\u1eadt li\u1ec7u d\u01b0\u01a1ng v\u00e0 m\u1eb7t n\u1ea1 ch\u1ea5t \u0111i\u1ec7n ph\u00e2n r\u1eafn \u00e2m s\u1ebd xu\u1ea5t hi\u1ec7n, d\u1eabn \u0111\u1ebfn m\u1ea5t dung l\u01b0\u1ee3ng r\u1ea5t r\u00f5 r\u00e0ng. M\u1ed9t s\u1ed1 kh\u00ed s\u1ebd xu\u1ea5t hi\u1ec7n trong qu\u00e1 tr\u00ecnh ph\u00e2n h\u1ee7y v\u1eadt li\u1ec7u b\u00ean trong c\u1ee7a pin lithium ion. Khi gi\u00e1 tr\u1ecb \u00e1p su\u1ea5t t\u0103ng l\u00ean, pin s\u1ebd gi\u00e3n n\u1edf v\u00e0 \u0111\u1ed1i m\u1eb7t v\u1edbi nguy c\u01a1 n\u1ed5.<\/span><\/span><\/p>\n

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

Nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, tr\u00ecnh \u0111\u1ed9 ph\u00e1t tri\u1ec3n kinh t\u1ebf qu\u1ed1c d\u00e2n \u0111\u01b0\u1ee3c n\u00e2ng cao, khoa h\u1ecdc c\u00f4ng ngh\u1ec7 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng, c\u00f4ng ngh\u1ec7 n\u0103ng l\u01b0\u1ee3ng m\u1edbi \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u v\u00e0 \u1ee9ng d\u1ee5ng s\u00e2u r\u1ed9ng. V\u00ec m\u1ee5c \u0111\u00edch ph\u00e1t tri\u1ec3n xanh v\u00e0 b\u1ec1n v\u1eefng, ng\u00e0y c\u00e0ng c\u00f3 nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p d\u1ea7n ph\u00e1t tri\u1ec3n<\/p>\n","protected":false},"author":1,"featured_media":19651,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[],"class_list":["post-19650","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\/19650","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=19650"}],"version-history":[{"count":1,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19650\/revisions"}],"predecessor-version":[{"id":21956,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19650\/revisions\/21956"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media\/19651"}],"wp:attachment":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=19650"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=19650"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=19650"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}