{"id":19728,"date":"2023-02-16T09:54:00","date_gmt":"2023-02-16T09:54:00","guid":{"rendered":"http:\/\/dgbellvietnam.com\/lithium-battery-thermal-runaway-caused-by-nail-penetration-part-2\/"},"modified":"2024-10-24T15:47:44","modified_gmt":"2024-10-24T08:47:44","slug":"lithium-battery-thermal-runaway-caused-by-nail-penetration-part-2","status":"publish","type":"post","link":"https:\/\/dgbellvietnam.com\/en\/lithium-battery-thermal-runaway-caused-by-nail-penetration-part-2\/","title":{"rendered":"Pin Lithium b\u1ecb tho\u00e1t nhi\u1ec7t do \u0111inh \u0111\u00e2m xuy\u00ean \u2013 Ph\u1ea7n 2"},"content":{"rendered":"
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3. So s\u00e1nh v\u00e0 ph\u00e2n t\u00edch <\/span>th\u1eed nghi\u1ec7m \u0111\u1ed9 xuy\u00ean th\u1ee7ng <\/span><\/span>c\u1ee7a \u0111inh<\/span><\/span><\/a><\/strong><\/span><\/h1>\n

So s\u00e1nh k\u1ebft qu\u1ea3 c\u1ee7a s\u00e1u nh\u00f3m th\u1eed nghi\u1ec7m, pin b\u1ecb h\u1ecfng, nh\u01b0ng m\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng c\u1ee7a c\u00e1c th\u1eed nghi\u1ec7m l\u00e0 kh\u00e1c nhau. Theo c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m th\u1eed nghi\u1ec7m kh\u00e1c nhau, c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m th\u1eed nghi\u1ec7m c\u1ee7a \u0111inh \u0111\u00e2m th\u1ee7ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh ba lo\u1ea1i.<\/span><\/span><\/p>\n

Lo\u1ea1i I: V\u00ed d\u1ee5, pin \u1edf Nh\u00f3m 1 v\u00e0 Nh\u00f3m 5 ch\u1ec9 x\u1ea3 ch\u1ea5t \u0111i\u1ec7n ph\u00e2n, kh\u00f4ng c\u00f3 kh\u00f3i v\u00e0 n\u1ed5;<\/span><\/span><\/p>\n

L\u1edbp II: V\u00ed d\u1ee5, m\u1eb7c d\u00f9 pin \u1edf Nh\u00f3m 3 v\u00e0 Nh\u00f3m 6 kh\u00f4ng ph\u00e1t n\u1ed5 nh\u01b0ng m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf kh\u00f3i v\u00e0 ch\u1ea5t \u0111i\u1ec7n ph\u00e2n \u0111\u00e3 tho\u00e1t ra t\u1eeb van x\u1ea3 \u00e1p su\u1ea5t c\u1ee7a pin;<\/span><\/span><\/p>\n

Lo\u1ea1i III: V\u00ed d\u1ee5, pin ph\u00e1t n\u1ed5 v\u00e0 t\u1ea1o ra l\u01b0\u1ee3ng kh\u00f3i l\u1edbn trong th\u1eed nghi\u1ec7m nh\u00f3m 2 v\u00e0 nh\u00f3m 3, g\u00e2y ra thi\u1ec7t h\u1ea1i nghi\u00eam tr\u1ecdng. C\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng k\u1ebft qu\u1ea3 c\u1ee7a s\u1ef1 tho\u00e1t nhi\u1ec7t do \u0111inh \u0111\u00e2m v\u00e0o l\u00e0 ng\u1eabu nhi\u00ean h\u01a1n, nh\u01b0ng n\u00f3 \u0111\u00e3 g\u00e2y ra thi\u1ec7t h\u1ea1i nghi\u00eam tr\u1ecdng cho pin.<\/span><\/span><\/p>\n

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Trong k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m lo\u1ea1i \u0111\u1ea7u ti\u00ean, pin kh\u00f4ng c\u00f3 thay \u0111\u1ed5i r\u00f5 r\u00e0ng sau khi b\u1ecb \u0111\u00e2m th\u1ee7ng v\u00e0o pin. Sau m\u1ed9t th\u1eddi gian, ch\u1ea5t \u0111i\u1ec7n ph\u00e2n b\u1eaft \u0111\u1ea7u ch\u1ea3y ra t\u1eeb t\u1eeb, k\u00e8m theo m\u00f9i h\u0103ng v\u00e0 ch\u1ea5t \u0111i\u1ec7n ph\u00e2n ch\u1ea3y ra sau khi pin b\u1ecb th\u1ee7ng. Trong nh\u00f3m th\u1eed nghi\u1ec7m \u0111\u1ea7u ti\u00ean v\u00e0 nh\u00f3m th\u1eed nghi\u1ec7m th\u1ee9 n\u0103m, kho\u1ea3ng 120 gi\u00e2y v\u00e0 80 gi\u00e2y sau khi pin b\u1ecb th\u1ee7ng, c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y ch\u1ea5t \u0111i\u1ec7n ph\u00e2n t\u00edch t\u1ee5. Sau \u0111\u00f3, khi th\u1eed nghi\u1ec7m ti\u1ebfn h\u00e0nh, nhi\u1ec7t \u0111\u1ed9 ti\u1ebfp t\u1ee5c t\u0103ng v\u00e0 l\u1edbp v\u1ecf nh\u1ef1a c\u1ee7a pin xung quanh l\u01b0\u1ee1i l\u00ea b\u1ecb tan ch\u1ea3y. B\u1ea3n th\u00e2n ch\u1ea5t \u0111i\u1ec7n ph\u00e2n c\u00f3 t\u00ednh \u0103n m\u00f2n v\u00e0 s\u1ebd ph\u00e1 h\u1ee7y c\u00e1c v\u1eadt th\u1ec3 xung quanh pin. N\u1ebfu ch\u1ea5t \u0111i\u1ec7n ph\u00e2n ch\u1ea3y trong b\u1ed9 pin, \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n c\u1ee7a ch\u1ea5t \u0111i\u1ec7n ph\u00e2n c\u0169ng s\u1ebd g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng \u0111o\u1ea3n m\u1ea1ch b\u00ean ngo\u00e0i cho c\u00e1c pin kh\u00e1c.<\/span><\/span><\/p>\n

\u0110i\u1ec7n \u00e1p c\u1ee7a kim nh\u00f3m 1 v\u00e0 nh\u00f3m 5 gi\u1ea3m nhanh sau khi \u0111\u00e2m v\u00e0o pin, sau \u0111\u00f3 gi\u1ea3m ch\u1eadm xu\u1ed1ng 0 V trong s\u1ef1 dao \u0111\u1ed9ng li\u00ean t\u1ee5c. Nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t c\u1ee7a pin trong nh\u00f3m 1 v\u00e0 nh\u00f3m 5 t\u0103ng nhanh sau khi \u0111inh \u0111\u00e2m v\u00e0o. \u0110i\u1ec3m \u0111o nhi\u1ec7t \u0111\u1ed9 tr\u00ean b\u1ec1 m\u1eb7t pin trong hai nh\u00f3m th\u1eed nghi\u1ec7m \u0111\u1ea1t 90 ~ 100 \u2103, sau \u0111\u00f3 b\u1eaft \u0111\u1ea7u gi\u1ea3m, nh\u01b0ng nhi\u1ec7t \u0111\u1ed9 c\u1ee7a pin trong nh\u00f3m th\u1eed nghi\u1ec7m th\u1ee9 n\u0103m gi\u1ea3m nhanh h\u01a1n nh\u00f3m th\u1eed nghi\u1ec7m th\u1ee9 nh\u1ea5t.<\/span><\/span><\/p>\n

\u0110\u1ed1i v\u1edbi lo\u1ea1i k\u1ebft qu\u1ea3 th\u1ee9 hai, nh\u00f3m th\u1eed nghi\u1ec7m th\u1ee9 t\u01b0 v\u00e0 nh\u00f3m th\u1eed nghi\u1ec7m th\u1ee9 s\u00e1u, pin t\u1ea1o ra m\u1ed9t l\u01b0\u1ee3ng kh\u00f3i nh\u1ecf v\u00e0 x\u1ea3 ch\u1ea5t \u0111i\u1ec7n ph\u00e2n. V\u00ed d\u1ee5, trong nh\u00f3m th\u1eed nghi\u1ec7m th\u1ee9 t\u01b0, kh\u00f3i \u0111\u01b0\u1ee3c \u0111\u1ea9y ra t\u1eeb v\u1ecb tr\u00ed b\u1ecb th\u1ee7ng \u1edf \u0111\u00e1y pin v\u00e0o gi\u00e2y th\u1ee9 9 sau khi l\u01b0\u1ee1i l\u00ea \u0111\u00e2m v\u00e0o pin. So v\u1edbi nh\u00f3m th\u1eed nghi\u1ec7m th\u1ee9 t\u01b0, pin trong nh\u00f3m th\u1eed nghi\u1ec7m th\u1ee9 s\u00e1u phun ra m\u1ed9t l\u01b0\u1ee3ng kh\u00f3i nh\u1ecf v\u00e0 ch\u1ea5t \u0111i\u1ec7n ph\u00e2n v\u00e0o gi\u00e2y th\u1ee9 24 sau khi \u0111inh \u0111\u00e2m v\u00e0o pin. Trong nh\u00f3m th\u1eed nghi\u1ec7m th\u1ee9 t\u01b0 v\u00e0 th\u1ee9 s\u00e1u, th\u1eddi gian pin ph\u00e1t ra kh\u00f3i kh\u00f4ng \u0111\u01b0\u1ee3c qu\u00e1 5 gi\u00e2y. Trong hai nh\u00f3m th\u1eed nghi\u1ec7m n\u00e0y, \u0111i\u1ec7n \u00e1p pin gi\u1ea3m nhanh sau khi b\u1ecb th\u1ee7ng v\u00e0 gi\u1ea3m xu\u1ed1ng 0 V trong v\u00f2ng 90 gi\u00e2y.<\/span><\/span><\/p>\n

Trong hai nh\u00f3m th\u1eed nghi\u1ec7m, \u0111i\u1ec3m \u0111o nhi\u1ec7t \u0111\u1ed9 tr\u00ean b\u1ec1 m\u1eb7t pin \u0111\u1ea1t gi\u00e1 tr\u1ecb c\u1ef1c \u0111\u1ea1i trong kho\u1ea3ng t\u1eeb 80 \u0111\u1ebfn 110 gi\u00e2y sau khi \u0111inh \u0111\u00e2m v\u00e0o, th\u01b0\u1eddng n\u1eb1m trong kho\u1ea3ng t\u1eeb 110 \u0111\u1ebfn 130 \u2103, sau \u0111\u00f3 nhi\u1ec7t \u0111\u1ed9 gi\u1ea3m ch\u1eadm. So v\u1edbi lo\u1ea1i th\u1eed nghi\u1ec7m \u0111\u1ea7u ti\u00ean, \u0111i\u1ec7n \u00e1p pin trong lo\u1ea1i th\u1eed nghi\u1ec7m th\u1ee9 hai gi\u1ea3m nhanh h\u01a1n v\u00e0 nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t c\u1ee7a pin cao h\u01a1n, \u0111i\u1ec1u n\u00e0y cho th\u1ea5y lo\u1ea1i th\u1eed nghi\u1ec7m th\u1ee9 hai t\u1ea1o ra nhi\u1ec1u nhi\u1ec7t ph\u1ea3n \u1ee9ng, nhi\u1ec7t joule v\u00e0 nhi\u1ec7t ph\u00e2n c\u1ef1c h\u01a1n, v\u00e0 kh\u00f3i ph\u00e1t ra cho th\u1ea5y nhi\u1ec1u nhi\u1ec7t ph\u1ea3n \u1ee9ng ph\u1ee5 h\u01a1n.<\/span><\/span><\/p>\n

Trong lo\u1ea1i th\u1eed nghi\u1ec7m th\u1ee9 ba, nh\u00f3m th\u1eed nghi\u1ec7m th\u1ee9 hai v\u00e0 th\u1ee9 ba \u0111\u00e3 t\u1ea1o ra c\u00e1c v\u1ee5 n\u1ed5 r\u1ea5t nghi\u00eam tr\u1ecdng. Nh\u00f3m th\u1eed nghi\u1ec7m th\u1ee9 hai b\u1eaft \u0111\u1ea7u ph\u00e1t ra kh\u00f3i 3 gi\u00e2y sau khi b\u1ecb th\u1ee7ng, v\u00e0 ti\u1ebfng n\u1ed5 v\u00e0 kh\u00f3i nhi\u1ec1u h\u01a1n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c nghe th\u1ea5y 5 gi\u00e2y sau \u0111\u00f3. Sau \u0111\u00f3, pin ti\u1ebfp t\u1ee5c ph\u00e1t ra kh\u00f3i v\u00e0 ch\u1ea5t \u0111i\u1ec7n ph\u00e2n ngay l\u1eadp t\u1ee9c ph\u00e1t n\u1ed5 v\u00e0 b\u1eafn tung t\u00f3e v\u00e0o th\u00e0nh trong c\u1ee7a bu\u1ed3ng th\u1eed nghi\u1ec7m. \u0110\u1ed1i v\u1edbi nh\u00f3m th\u1eed nghi\u1ec7m th\u1ee9 ba, pin kh\u00f4ng thay \u0111\u1ed5i trong v\u00f2ng 15 gi\u00e2y sau khi pin b\u1ecb th\u1ee7ng, v\u00e0 sau \u0111\u00f3 b\u1eaft \u0111\u1ea7u ph\u00e1t ra m\u1ed9t l\u01b0\u1ee3ng kh\u00f3i nh\u1ecf. V\u00e0o gi\u00e2y th\u1ee9 34 sau khi pin b\u1ecb th\u1ee7ng, pin \u0111\u1ed9t nhi\u00ean ph\u00e1t n\u1ed5 d\u1eef d\u1ed9i, bu\u1ed3ng th\u1eed nghi\u1ec7m ngay l\u1eadp t\u1ee9c tr\u00e0n ng\u1eadp kh\u00f3i v\u00e0 ch\u1ea5t \u0111i\u1ec7n ph\u00e2n b\u1eafn tung t\u00f3e v\u00e0o th\u00e0nh trong c\u1ee7a bu\u1ed3ng th\u1eed nghi\u1ec7m.<\/span><\/span><\/p>\n

Trong th\u1eed nghi\u1ec7m \u0111\u00e2m th\u1ee7ng b\u1eb1ng \u0111inh c\u1ee7a nh\u00f3m th\u1ee9 hai v\u00e0 th\u1ee9 ba, s\u1ef1 thay \u0111\u1ed5i \u0111i\u1ec7n \u00e1p c\u1ee7a pin gi\u1ea3m nhanh sau khi b\u1ecb \u0111\u00e2m th\u1ee7ng v\u00e0 gi\u1ea3m xu\u1ed1ng 0V trong v\u00f2ng 30 gi\u00e2y sau khi b\u1ecb \u0111\u00e2m th\u1ee7ng. Nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t c\u1ee7a pin nh\u00f3m th\u1ee9 hai v\u00e0 th\u1ee9 ba t\u0103ng nhanh sau khi b\u1ecb \u0111inh \u0111\u00e2m th\u1ee7ng. Trong hai nh\u00f3m th\u1eed nghi\u1ec7m, trong kho\u1ea3ng t\u1eeb 50 \u0111\u1ebfn 150 gi\u00e2y sau khi b\u1ecb \u0111inh \u0111\u00e2m th\u1ee7ng, nhi\u1ec7t \u0111\u1ed9 c\u1ee7a b\u1ec1 m\u1eb7t pin \u0111\u1ea1t gi\u00e1 tr\u1ecb c\u1ef1c \u0111\u1ea1i trong kho\u1ea3ng t\u1eeb 160 \u0111\u1ebfn 200 \u2103, sau \u0111\u00f3 nhi\u1ec7t \u0111\u1ed9 gi\u1ea3m ch\u1eadm. C\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng ph\u1ea3n \u1ee9ng c\u1ee7a pin sau khi b\u1ecb \u0111inh \u0111\u00e2m th\u1ee7ng c\u00e0ng m\u1ea1nh th\u00ec nhi\u1ec7t \u0111\u1ed9 c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e0ng cao. Trong ba lo\u1ea1i th\u1eed nghi\u1ec7m, \u0111i\u1ec7n \u00e1p pin trong lo\u1ea1i th\u1eed nghi\u1ec7m th\u1ee9 ba gi\u1ea3m nhanh nh\u1ea5t v\u00e0 nhi\u1ec7t \u0111\u1ed9 t\u0103ng cao nh\u1ea5t, do \u0111\u00f3 nhi\u1ec7t ph\u1ea3n \u1ee9ng, nhi\u1ec7t c\u1ed1c h\u00f3a v\u00e0 nhi\u1ec7t ph\u00e2n c\u1ef1c t\u1ea1o ra nhi\u1ec1u nh\u1ea5t, trong khi ph\u1ea3n \u1ee9ng m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t trong lo\u1ea1i th\u1eed nghi\u1ec7m th\u1ee9 ba l\u00e0 nghi\u00eam tr\u1ecdng nh\u1ea5t, cho th\u1ea5y lo\u1ea1i th\u1eed nghi\u1ec7m th\u1ee9 ba t\u1ea1o ra nhi\u1ec1u nhi\u1ec7t ph\u1ea3n \u1ee9ng ph\u1ee5 nh\u1ea5t.<\/span><\/span><\/p>\n

Qua ph\u00e2n t\u00edch ba lo\u1ea1i k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m tr\u00ean, c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng \u1ea3nh h\u01b0\u1edfng c\u1ee7a s\u1ef1 xuy\u00ean th\u1ee7ng c\u1ee7a \u0111inh \u0111\u1ed1i v\u1edbi s\u1ef1 m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t nghi\u00eam tr\u1ecdng c\u1ee7a pin lithium s\u1eaft phosphate h\u00ecnh tr\u1ee5 c\u00f3 t\u00ednh ng\u1eabu nhi\u00ean nh\u1ea5t \u0111\u1ecbnh v\u00e0 nguy\u00ean nh\u00e2n c\u1ee7a t\u00ednh ng\u1eabu nhi\u00ean li\u00ean quan \u0111\u1ebfn giao di\u1ec7n ti\u1ebfp x\u00fac ng\u1eabu nhi\u00ean \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh sau khi pin b\u1ecb th\u1ee7ng. Ti\u1ebfp x\u00fac t\u1ed1t gi\u1eefa kim v\u00e0 b\u1ed9 ph\u1eadn \u0111i\u1ec7n c\u1ef1c b\u00ean trong pin, c\u0169ng nh\u01b0 s\u1ed1 l\u01b0\u1ee3ng b\u1ed9 ph\u1eadn \u0111i\u1ec7n c\u1ef1c tham gia v\u00e0o qu\u00e1 tr\u00ecnh ph\u00f3ng \u0111i\u1ec7n sau khi pin b\u1ecb th\u1ee7ng, s\u1ebd g\u00e2y ra c\u00e1c t\u00ecnh hu\u1ed1ng m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t nghi\u00eam tr\u1ecdng kh\u00e1c nhau. C\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng m\u1ed9t khi pin b\u1ecb h\u01b0 h\u1ecfng do \u0111inh xuy\u00ean th\u1ee7ng, n\u00f3 kh\u00f4ng ch\u1ec9 l\u00e0m h\u1ecfng b\u1ea3n th\u00e2n pin m\u00e0 c\u00f2n \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c v\u1eadt th\u1ec3 xung quanh pin n\u1ebfu pin ph\u00e1t n\u1ed5.<\/span><\/span><\/p>\n

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

Trong b\u00e0i b\u00e1o n\u00e0y, \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng ban \u0111\u1ea7u l\u00e0 20 \u2103 V\u1edbi kim th\u00e9p vonfram \u03a6 5 mm, s\u00e1u nh\u00f3m th\u1eed nghi\u1ec7m kim \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n tr\u00ean pin s\u1eaft phosphate lithium 32650 h\u00ecnh tr\u1ee5 \u1edf tr\u1ea1ng th\u00e1i s\u1ea1c \u0111\u1ea7y (SOC-1) \u0111\u1ec3 quan s\u00e1t s\u1ef1 thay \u0111\u1ed5i c\u1ee7a \u0111i\u1ec7n \u00e1p pin v\u00e0 nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t trong qu\u00e1 tr\u00ecnh kim. Theo k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m, c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng s\u1ef1 <\/span><\/span>m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t<\/span><\/span><\/a> nghi\u00eam tr\u1ecdng do \u0111inh \u0111\u00e2m l\u00e0 ng\u1eabu nhi\u00ean v\u00e0 giao di\u1ec7n ti\u1ebfp x\u00fac ng\u1eabu nhi\u00ean gi\u1eefa kim v\u00e0 b\u1ed9 ph\u1eadn \u0111i\u1ec7n c\u1ef1c b\u1ecb h\u1ecfng d\u1eabn \u0111\u1ebfn s\u1ef1 m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t nghi\u00eam tr\u1ecdng m\u1ed9t c\u00e1ch ng\u1eabu nhi\u00ean. C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m t\u01b0\u01a1ng \u1ee9ng c\u1ee7a pin m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t bao g\u1ed3m d\u00f2ng \u0111i\u1ec7n ph\u00e2n ch\u1ea3y ra, ph\u00e1t th\u1ea3i kh\u00f3i v\u00e0 n\u1ed5.<\/span><\/span><\/p>\n

Sau khi <\/span><\/span>\u0111inh \u0111\u00e2m xuy\u00ean<\/span><\/span><\/a> , \u0111i\u1ec7n \u00e1p c\u1ee7a pin s\u1ebd gi\u1ea3m xu\u1ed1ng 0 V. \u0110i\u1ec7n \u00e1p c\u1ee7a pin ch\u1ec9 ch\u1ea3y ra kh\u1ecfi ch\u1ea5t \u0111i\u1ec7n ph\u00e2n s\u1ebd gi\u1ea3m ch\u1eadm v\u00e0 \u0111i\u1ec7n \u00e1p c\u1ee7a pin ph\u00e1t n\u1ed5 ho\u1eb7c ph\u00e1t ra kh\u00f3i s\u1ebd gi\u1ea3m nhanh ch\u00f3ng. \u0110inh \u0111\u00e2m xuy\u00ean s\u1ebd khi\u1ebfn nhi\u1ec7t \u0111\u1ed9 c\u1ee7a pin t\u0103ng l\u00ean. Ph\u1ea3n \u1ee9ng nhi\u1ec7t \u0111\u1ed9 c\u1ee7a pin c\u00e0ng m\u1ea1nh th\u00ec nhi\u1ec7t \u0111\u1ed9 t\u0103ng c\u00e0ng nhanh v\u00e0 cao. Thi\u1ec7t h\u1ea1i cho pin lithium s\u1eaft phosphate do \u0111inh \u0111\u00e2m xuy\u00ean l\u00e0 t\u1eed vong. \u0110\u1ec1 xu\u1ea5t r\u1eb1ng trong nghi\u00ean c\u1ee9u ph\u00e1t tri\u1ec3n v\u00e0 s\u1eed d\u1ee5ng pin trong t\u01b0\u01a1ng lai, thi\u1ebft k\u1ebf c\u1ea5u tr\u00fac pin h\u00ecnh tr\u1ee5 ph\u1ea3i c\u00f3 th\u1ec3 ng\u0103n ng\u1eeba \u0111inh \u0111\u00e2m xuy\u00ean ho\u1eb7c \u0111inh \u0111\u00e2m xuy\u00ean kh\u00f4ng g\u00e2y h\u1ea1i v\u00e0 b\u00ean ngo\u00e0i pin c\u0169ng ph\u1ea3i \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 \u0111\u1ec3 tr\u00e1nh pin b\u1ecb th\u1ee7ng.<\/span><\/span><\/p>\n

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3. So s\u00e1nh v\u00e0 ph\u00e2n t\u00edch th\u1eed nghi\u1ec7m \u0111\u1ed9 xuy\u00ean th\u1ee7ng c\u1ee7a \u0111inh So s\u00e1nh k\u1ebft qu\u1ea3 c\u1ee7a s\u00e1u nh\u00f3m th\u1eed nghi\u1ec7m, pin b\u1ecb h\u1ecfng, nh\u01b0ng m\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng c\u1ee7a c\u00e1c th\u1eed nghi\u1ec7m l\u00e0 kh\u00e1c nhau. Theo c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m th\u1eed nghi\u1ec7m kh\u00e1c nhau, c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m th\u1eed nghi\u1ec7m c\u1ee7a \u0111inh \u0111\u00e2m th\u1ee7ng c\u00f3<\/p>\n","protected":false},"author":1,"featured_media":19729,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[],"class_list":["post-19728","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\/19728","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=19728"}],"version-history":[{"count":3,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19728\/revisions"}],"predecessor-version":[{"id":22012,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19728\/revisions\/22012"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media\/19729"}],"wp:attachment":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=19728"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=19728"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=19728"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}