{"id":19756,"date":"2022-12-01T09:13:39","date_gmt":"2022-12-01T09:13:39","guid":{"rendered":"http:\/\/dgbellvietnam.com\/li-ion-power-battery-crush-test-part-2\/"},"modified":"2024-10-24T16:16:12","modified_gmt":"2024-10-24T09:16:12","slug":"li-ion-power-battery-crush-test-part-2","status":"publish","type":"post","link":"https:\/\/dgbellvietnam.com\/en\/li-ion-power-battery-crush-test-part-2\/","title":{"rendered":"Th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n c\u1ee7a pin Li-ion \u0111i\u1ec7n \u2013 Ph\u1ea7n 2"},"content":{"rendered":"
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2.1 Chu\u1ea9n b\u1ecb th\u1eed nghi\u1ec7m<\/span><\/span><\/strong><\/span><\/span><\/h2>\n

Pin h\u00ecnh tr\u1ee5 v\u00e0 h\u00ecnh vu\u00f4ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m cell ngu\u1ed3n. \u0110\u1ed1i t\u01b0\u1ee3ng nghi\u00ean c\u1ee9u c\u1ee7a b\u00e0i b\u00e1o n\u00e0y l\u00e0 m\u1ed9t cell vu\u00f4ng, ch\u1ee7 y\u1ebfu bao g\u1ed3m h\u1ec7 th\u1ed1ng v\u1eadt li\u1ec7u h\u00f3a h\u1ecdc c\u1ef1c d\u01b0\u01a1ng niken coban mangan v\u00e0 c\u1ef1c \u00e2m graphite. K\u00edch th\u01b0\u1edbc pin \u0111\u01a1n: XYZ = W x L x H = 27 mm x 148 mm x 94 mm, \u0111i\u1ec7n \u00e1p \u0111\u1ecbnh m\u1ee9c: 3,7 V, dung l\u01b0\u1ee3ng \u0111\u1ecbnh m\u1ee9c: 37 Ah. Pin \u0111\u01a1n \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp trong m\u00f4-\u0111un theo d\u1ea1ng ch\u1ed3ng ch\u1ea5t theo h\u01b0\u1edbng chi\u1ec1u r\u1ed9ng (h\u01b0\u1edbng X) c\u1ee7a pin \u0111\u01a1n. Trong b\u00e0i b\u00e1o n\u00e0y, \u0111\u1ecbnh ngh\u0129a v\u1ec1 h\u01b0\u1edbng nghi\u1ec1n m\u00f4-\u0111un ph\u00f9 h\u1ee3p v\u1edbi \u0111\u1ecbnh ngh\u0129a c\u1ee7a monome v\u00e0 monome pin v\u00e0 m\u00f4-\u0111un \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n trong H\u00ecnh 3. D\u1eef li\u1ec7u d\u1ecbch chuy\u1ec3n, t\u1ea3i, \u0111i\u1ec7n \u00e1p, nhi\u1ec7t \u0111\u1ed9 v\u00e0 d\u1eef li\u1ec7u video c\u1ee7a qu\u00e1 tr\u00ecnh nghi\u1ec1n \u0111\u01b0\u1ee3c thu th\u1eadp b\u1eb1ng c\u00e1ch \u0111\u00f9n cell v\u00e0 m\u00f4-\u0111un b\u1eb1ng \u0111\u1ea7u d\u00f2 v\u00e0 k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e2n t\u00edch.<\/span><\/span><\/p>\n

2.2 <\/span><\/span><\/strong><\/span>K\u1ebft qu\u1ea3 <\/span><\/span><\/span><\/strong>th\u1eed nghi\u1ec7m nghi\u1ec1n t\u1ebf b\u00e0o<\/span><\/span><\/a><\/strong><\/span>\u00a0<\/span><\/strong><\/span><\/h2>\n

Ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c ch\u1ecbu n\u00e9n XYZ tr\u00ean l\u00f5i \u0111i\u1ec7n theo ba h\u01b0\u1edbng n\u00e0y v\u00e0 thu \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 so s\u00e1nh \u0111\u1ed9 c\u1ee9ng c\u1ee7a ba h\u01b0\u1edbng nh\u01b0 th\u1ec3 hi\u1ec7n trong H\u00ecnh 4.<\/span><\/span><\/p>\n

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\u0110\u1ed9 c\u1ee9ng theo h\u01b0\u1edbng X c\u1ee7a l\u00f5i \u0111i\u1ec7n l\u00e0 l\u1edbn nh\u1ea5t, c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c l\u1ef1c nghi\u1ec1n l\u1edbn h\u01a1n trong c\u00f9ng m\u1ed9t bi\u1ebfn d\u1ea1ng. H\u01b0\u1edbng Y v\u00e0 Z t\u01b0\u01a1ng \u0111\u1ed1i y\u1ebfu. Shenxin th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo chu\u1ed7i theo h\u01b0\u1edbng X trong m\u00f4-\u0111un. Khi xe b\u1ecb va ch\u1ea1m b\u00ean h\u00f4ng, l\u00f5i \u0111i\u1ec7n b\u1ecb \u00e9p v\u00e0 bi\u1ebfn d\u1ea1ng ch\u1ee7 y\u1ebfu theo h\u01b0\u1edbng X v\u00e0 Y.<\/span><\/span><\/p>\n

\u0110\u1ec3 t\u00ecm \u0111i\u1ec3m t\u1edbi h\u1ea1n c\u1ee7a h\u01b0 h\u1ecfng v\u1ecf v\u00e0 n\u1ee9t d\u01b0\u1edbi \u0111i\u1ec1u ki\u1ec7n nghi\u1ec1n c\u1ee7a l\u00f5i \u0111i\u1ec7n, th\u1eed nghi\u1ec7m nghi\u1ec1n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo h\u01b0\u1edbng Y c\u1ee7a l\u00f5i \u0111i\u1ec7n. M\u1ed7i nh\u00f3m th\u1eed nghi\u1ec7m \u0111\u01b0\u1ee3c \u0111\u00f9n ba l\u1ea7n v\u00e0 t\u1ed1c \u0111\u1ed9 nghi\u1ec1n l\u00e0 0,2 mm\/gi\u00e2y.<\/span><\/span><\/p>\n

\u1ede nh\u00f3m th\u1eed nghi\u1ec7m \u0111\u1ea7u ti\u00ean, monome \u0111\u01b0\u1ee3c n\u1ea1p li\u00ean t\u1ee5c cho \u0111\u1ebfn khi pin m\u1ea5t kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t nhi\u1ec7t v\u00e0 tr\u1ea1ng th\u00e1i s\u1ea1c (SOC) c\u1ee7a pin l\u00e0 100%;<\/span><\/span><\/p>\n

Nh\u00f3m th\u1eed nghi\u1ec7m th\u1ee9 hai l\u00e0 t\u00ecm ra \u0111i\u1ec3m t\u1edbi h\u1ea1n c\u1ee7a n\u1ee9t v\u1ecf pin. \u0110\u1ec3 thu\u1eadn ti\u1ec7n cho vi\u1ec7c quan s\u00e1t, pin \u0111\u01b0\u1ee3c x\u1ea3 v\u00e0 n\u1ea1p 3 mm m\u1ed7i l\u1ea7n theo t\u1eebng ph\u1ea7n c\u00f9ng m\u1ed9t l\u00fac, v\u00e0 m\u1ed7i ph\u1ea7n \u0111\u01b0\u1ee3c gi\u1eef trong 200 gi\u00e2y;<\/span><\/span><\/p>\n

Nh\u00f3m th\u1eed nghi\u1ec7m th\u1ee9 ba li\u00ean t\u1ee5c \u0111\u01b0\u1ee3c t\u1ea3i \u0111\u1ebfn gi\u00e1 tr\u1ecb t\u1edbi h\u1ea1n c\u1ee7a n\u1ee9t v\u1ecf v\u00e0 sau \u0111\u00f3 \u0111\u1ec3 nguy\u00ean \u0111\u1ec3 ph\u00e2n t\u00edch xem c\u00f3 nguy c\u01a1 m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t hay kh\u00f4ng. Nh\u00f3m l\u00f5i th\u1eed nghi\u1ec7m \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c t\u1ea3i li\u00ean t\u1ee5c cho \u0111\u1ebfn khi x\u1ea3y ra h\u1ecfng do nghi\u1ec1n, nh\u01b0 th\u1ec3 hi\u1ec7n trong H\u00ecnh 5.<\/span><\/span><\/p>\n

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C\u00f3 th\u1ec3 th\u1ea5y t\u1eeb ph\u00e2n t\u00edch so s\u00e1nh c\u00e1c th\u1eed nghi\u1ec7m r\u1eb1ng c\u00f3 s\u1ef1 kh\u00f4ng ch\u1eafc ch\u1eafn trong ch\u1ebf \u0111\u1ed9 h\u1ecfng h\u00f3c c\u1ee7a qu\u00e1 tr\u00ecnh nghi\u1ec1n l\u00f5i \u0111i\u1ec7n.<\/span><\/span><\/p>\n

Trong th\u1eed nghi\u1ec7m nghi\u1ec1n n\u00e1t, ch\u1ebf \u0111\u1ed9 h\u1ecfng c\u1ee7a l\u00f5i \u0111i\u1ec7n l\u00e0 v\u1ecf b\u1ecb \u0111\u00f9n ra v\u00e0 h\u01b0 h\u1ecfng, kh\u00f4ng x\u1ea3y ra ch\u00e1y n\u1ed5; V\u1ecf b\u1ecb \u0111\u00f9n ra m\u00e0 kh\u00f4ng h\u01b0 h\u1ecfng, nh\u01b0ng x\u1ea3y ra kh\u00f3i ho\u1eb7c ch\u00e1y n\u1ed5; V\u1ecf b\u1ecb nghi\u1ec1n n\u00e1t v\u00e0 h\u01b0 h\u1ecfng, g\u00e2y ra ch\u00e1y n\u1ed5.<\/span><\/span><\/p>\n

H\u00ecnh 6 v\u00e0 7 cho th\u1ea5y bi\u1ebfn d\u1ea1ng \u00e9p c\u1ee7a v\u1ecf l\u00f5i \u0111i\u1ec7n sau c\u00e1c th\u1eed nghi\u1ec7m nh\u00f3m th\u1ee9 hai v\u00e0 th\u1ee9 ba. C\u00f3 th\u1ec3 th\u1ea5y t\u1eeb H\u00ecnh 6 r\u1eb1ng m\u1eb7t \u00e2m c\u1ee7a l\u00f5i \u0111i\u1ec7n b\u1ecb n\u1ee9t c\u00f2n m\u1eb7t d\u01b0\u01a1ng th\u00ec kh\u00f4ng;<\/span><\/span><\/p>\n

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Khi \u0111\u1ed9 d\u1ecbch chuy\u1ec3n \u00e9p \u0111\u1ea7u ti\u00ean l\u00e0 12 mm, m\u1eb7t \u00e2m b\u1ecb n\u1ee9t, nh\u01b0ng m\u1eb7t d\u01b0\u01a1ng th\u00ec kh\u00f4ng. Th\u00f4ng qua ph\u00e2n t\u00edch nh\u00f3m th\u1eed nghi\u1ec7m th\u1ee9 hai, s\u01a1 b\u1ed9 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c r\u1eb1ng v\u1ecf b\u1ecb h\u01b0 h\u1ecfng v\u00e0 n\u1ee9t d\u01b0\u1edbi \u0111i\u1ec1u ki\u1ec7n \u00e9p c\u1ee7a l\u00f5i \u0111i\u1ec7n<\/span><\/span><\/p>\n

Gi\u00e1 tr\u1ecb t\u1edbi h\u1ea1n l\u00e0 12 mm. C\u00f3 th\u1ec3 th\u1ea5y t\u1eeb H\u00ecnh 7 r\u1eb1ng khi \u0111\u1ed9 d\u1ecbch chuy\u1ec3n nghi\u1ec1n \u0111o \u0111\u01b0\u1ee3c l\u00e0 12 mm, ba l\u00f5i th\u1eed nghi\u1ec7m kh\u00f4ng b\u1ecb n\u1ee9t v\u1ecf v\u00e0 kh\u00f4ng c\u00f3 ch\u00e1y n\u1ed5. Sau khi th\u1eed nghi\u1ec7m, c\u00e1c l\u00f5i \u0111\u01b0\u1ee3c \u0111o ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng sau khi \u0111\u1ee9ng y\u00ean trong 24 gi\u1edd.<\/span><\/span><\/p>\n

Nh\u00f3m th\u1eed nghi\u1ec7m n\u00e0y \u0111\u00e3 x\u00e1c minh r\u1eb1ng gi\u00e1 tr\u1ecb t\u1edbi h\u1ea1n c\u1ee7a s\u1ef1 ph\u00e1 h\u1ee7y do \u0111\u00e8 \u00e9p c\u1ee7a lo\u1ea1i l\u00f5i \u0111i\u1ec7n n\u00e0y c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh l\u00e0 12 mm. Th\u00f4ng qua ph\u00e2n t\u00edch c\u1ee7a ba nh\u00f3m th\u1eed nghi\u1ec7m, ng\u01b0\u1eddi ta th\u1ea5y r\u1eb1ng \u0111i\u1ec3m t\u1edbi h\u1ea1n c\u1ee7a ch\u1ebf \u0111\u1ed9 ph\u00e1 h\u1ee7y do h\u01b0 h\u1ecfng v\u00e0 n\u1ee9t c\u1ee7a v\u1ecf l\u00f5i \u0111i\u1ec7n l\u00e0 12 mm, th\u1ea5p h\u01a1n gi\u00e1 tr\u1ecb gi\u1edbi h\u1ea1n, do \u0111\u00f3 nguy c\u01a1 n\u1ee9t v\u1ecf l\u00e0 nh\u1ecf, v\u00e0 s\u1ebd kh\u00f4ng x\u1ea3y ra ch\u00e1y n\u1ed5;<\/span><\/span><\/p>\n

N\u1ebfu v\u01b0\u1ee3t qu\u00e1 gi\u00e1 tr\u1ecb gi\u1edbi h\u1ea1n, c\u00f3 m\u1ed9t s\u1ef1 kh\u00f4ng ch\u1eafc ch\u1eafn nh\u1ea5t \u0111\u1ecbnh v\u1ec1 vi\u1ec7c v\u1ecf l\u00f5i b\u1ecb h\u01b0 h\u1ecfng hay n\u1ee9t, v\u1eabn c\u00f3 r\u1ee7i ro an to\u00e0n cao; S\u1ef1 kh\u00f4ng ch\u1eafc ch\u1eafn v\u1ec1 s\u1ef1 c\u1ed1 l\u00f5i \u0111i\u1ec7n do ch\u00e1y n\u1ed5 g\u00e2y ra l\u00e0 l\u1edbn v\u00e0 c\u00e1c ch\u1ebf \u0111\u1ed9 h\u1ecfng h\u00f3c kh\u00f4ng nh\u1ea5t qu\u00e1n. Do \u0111\u00f3, c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh r\u1eb1ng dung sai h\u01b0 h\u1ecfng c\u1ee7a cell l\u00e0 12 mm v\u00e0 \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c nghi\u1ec1n t\u01b0\u01a1ng \u0111\u1ed1i \u1ed5n \u0111\u1ecbnh trong th\u1eed nghi\u1ec7m. Tuy nhi\u00ean, c\u00e1c \u0111i\u1ec1u ki\u1ec7n m\u00e0 pin \u0111\u01b0\u1ee3c \u0111\u00f9n trong \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf l\u1ea1i kh\u00e1c nhau. Xem x\u00e9t r\u1eb1ng m\u1ed9t bi\u00ean \u0111\u1ed9 an to\u00e0n nh\u1ea5t \u0111\u1ecbnh \u0111\u01b0\u1ee3c b\u1ea3o l\u01b0u, dung sai h\u01b0 h\u1ecfng c\u1ee7a lo\u1ea1i cell n\u00e0y \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh l\u00e0 10 mm.<\/span><\/span><\/p>\n

2.3 K\u1ebft qu\u1ea3 <\/span><\/span>th\u1eed nghi\u1ec7m n\u00e9n m\u00f4-\u0111un<\/span><\/span><\/a><\/span><\/strong><\/span><\/h2>\n

M\u00f4-\u0111un s\u1ebd ph\u1ea3i ch\u1ecbu th\u1eed nghi\u1ec7m nghi\u1ec1n theo h\u01b0\u1edbng XY. T\u1ed1c \u0111\u1ed9 t\u1ea3i l\u00e0 0,2 mm\/gi\u00e2y. Trong th\u1eed nghi\u1ec7m, m\u00f4-\u0111un \u1edf tr\u1ea1ng th\u00e1i c\u00f4ng su\u1ea5t \u0111\u1ea7y \u0111\u1ee7, t\u1ee9c l\u00e0 SOC c\u1ee7a m\u00f4-\u0111un l\u00e0 100%. H\u01b0\u1edbng X v\u00e0 Y t\u01b0\u01a1ng \u1ee9ng v\u1edbi hi\u1ec7u su\u1ea5t nghi\u1ec1n c\u1ee7a va ch\u1ea1m b\u00ean h\u00f4ng xe. L\u1eb7p l\u1ea1i th\u1eed nghi\u1ec7m nghi\u1ec1n ba l\u1ea7n theo hai h\u01b0\u1edbng nghi\u1ec1n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u qu\u1ea3 c\u1ee7a th\u1eed nghi\u1ec7m.<\/span><\/span><\/p>\n

H\u00ecnh 8 cho th\u1ea5y tr\u1ea1ng th\u00e1i nghi\u1ec1n c\u1ee7a m\u00f4-\u0111un theo c\u00e1c h\u01b0\u1edbng kh\u00e1c nhau.<\/span><\/span><\/p>\n

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H\u00ecnh 9 cho th\u1ea5y qu\u00e1 tr\u00ecnh nghi\u1ec1n theo h\u01b0\u1edbng X v\u00e0 Y c\u1ee7a m\u00f4-\u0111un. \u0110\u1ec3 so s\u00e1nh, qu\u00e1 tr\u00ecnh tho\u00e1t nhi\u1ec7t do nghi\u1ec1n theo c\u00e1c h\u01b0\u1edbng kh\u00e1c nhau c\u1ee7a m\u00f4-\u0111un l\u00e0: m\u00f4-\u0111un pin bi\u1ebfn d\u1ea1ng \u1edf giai \u0111o\u1ea1n \u0111\u1ea7u v\u00e0 kh\u00f3i ho\u1eb7c tia l\u1eeda xu\u1ea5t hi\u1ec7n khi h\u01b0 h\u1ecfng b\u00ean trong pin t\u0103ng l\u00ean theo t\u1ea3i nghi\u1ec1n, ti\u1ebfp t\u1ee5c g\u00e2y ra ch\u00e1y n\u1ed5.<\/span><\/span><\/p>\n

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H\u00ecnh 10 cho th\u1ea5y \u0111\u01b0\u1eddng cong thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111i\u1ec7n \u00e1p c\u1ee7a m\u00f4-\u0111un theo h\u01b0\u1edbng X v\u00e0 Y trong qu\u00e1 tr\u00ecnh nghi\u1ec1n. L\u1ea5y m\u00f4-\u0111un M2 (nghi\u1ec1n X) v\u00e0 M4 (nghi\u1ec1n Y) l\u00e0m v\u00ed d\u1ee5 \u0111\u1ec3 ph\u00e2n t\u00edch.<\/span><\/span><\/p>\n

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Trong H\u00ecnh 10 h\u01b0\u1edbng x, trong kho\u1ea3ng th\u1eddi gian 0~400 gi\u00e2y, m\u00f4-\u0111un b\u1ecb bi\u1ebfn d\u1ea1ng d\u1ea7n do b\u1ecb \u0111\u00e8 b\u1eb9p, nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111i\u1ec7n \u00e1p c\u1ee7a m\u00f4-\u0111un v\u1eabn \u1ed5n \u0111\u1ecbnh; Khi t\u1ea3i \u0111\u1ea1t 400 gi\u00e2y, \u0111i\u1ec7n \u00e1p b\u1eaft \u0111\u1ea7u gi\u1ea3m xu\u1ed1ng 0 V v\u00e0 nhi\u1ec7t \u0111\u1ed9 t\u0103ng t\u1eeb 26\u2103 l\u00ean 156\u2103, l\u00fac n\u00e0y, m\u00f4-\u0111un pin b\u1eaft \u0111\u1ea7u b\u1ed1c kh\u00f3i; Khi l\u1ef1c \u0111\u00e8 b\u1eb9p ti\u1ebfp t\u1ee5c t\u0103ng, nhi\u1ec7t \u0111\u1ed9 t\u0103ng l\u00ean 500\u2103, sau \u0111\u00f3 m\u00f4-\u0111un pin s\u1ebd b\u1ed1c ch\u00e1y v\u00e0 ph\u00e1t n\u1ed5.<\/span><\/span><\/p>\n

Trong H\u00ecnh 10 h\u01b0\u1edbng y, \u0111i\u1ec7n \u00e1p v\u00e0 nhi\u1ec7t \u0111\u1ed9 c\u1ee7a m\u00f4-\u0111un t\u01b0\u01a1ng \u0111\u1ed1i \u1ed5n \u0111\u1ecbnh trong ph\u1ea1m vi 0~300 gi\u00e2y. Khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng t\u1eeb 300 gi\u00e2y \u0111\u1ebfn 550 \u2103, m\u00f4-\u0111un s\u1ebd ch\u00e1y v\u00e0 n\u1ed5, \u0111i\u1ec7n \u00e1p gi\u1ea3m xu\u1ed1ng 0V. Th\u00f4ng qua vi\u1ec7c so s\u00e1nh v\u00e0 ph\u00e2n t\u00edch c\u00e1c \u0111\u01b0\u1eddng cong nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111i\u1ec7n \u00e1p, ng\u01b0\u1eddi ta c\u0169ng th\u1ea5y r\u1eb1ng hi\u1ec7n t\u01b0\u1ee3ng m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t c\u00f3 nhi\u1ec1u kh\u1ea3 n\u0103ng x\u1ea3y ra trong qu\u00e1 tr\u00ecnh \u0111\u00e8 b\u1eb9p theo h\u01b0\u1edbng Y c\u1ee7a m\u00f4-\u0111un.<\/span><\/span><\/p>\n

Theo \u0111\u01b0\u1eddng cong t\u1ea3i tr\u1ecdng d\u1ecbch chuy\u1ec3n, \u0111\u01b0\u1eddng cong \u0111i\u1ec7n \u00e1p v\u00e0 nhi\u1ec7t \u0111\u1ed9 thu th\u1eadp \u0111\u01b0\u1ee3c t\u1eeb th\u1eed nghi\u1ec7m, kho\u1ea3ng c\u00e1ch nghi\u1ec1n khi m\u00f4-\u0111un pin h\u1ecfng theo h\u01b0\u1edbng XY 2 \u0111\u01b0\u1ee3c ph\u00e2n t\u00edch. Trong qu\u00e1 tr\u00ecnh nghi\u1ec1n theo h\u01b0\u1edbng X, \u0111\u1ed9 d\u1ecbch chuy\u1ec3n nghi\u1ec1n l\u1ea7n l\u01b0\u1ee3t l\u00e0 40 mm, 42 mm v\u00e0 30 mm khi c\u00e1c m\u00f4-\u0111un s\u1ed1 M1, M2 v\u00e0 M3 h\u1ecfng; \u0110\u00f9n theo h\u01b0\u1edbng Y. Khi c\u00e1c m\u00f4-\u0111un M4, M5 v\u00e0 M6 h\u1ecfng, \u0111\u1ed9 d\u1ecbch chuy\u1ec3n nghi\u1ec1n l\u1ea7n l\u01b0\u1ee3t l\u00e0 21 mm, 15 mm v\u00e0 24 mm. Qua so s\u00e1nh, c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng so v\u1edbi h\u01b0\u1edbng X, h\u01b0\u1edbng Y c\u1ee7a m\u00f4-\u0111un d\u1ec5 b\u1ecb h\u1ecfng h\u01a1n sau khi \u0111\u00f9n.<\/span><\/span><\/p>\n

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

2.1 Chu\u1ea9n b\u1ecb th\u1eed nghi\u1ec7m Pin h\u00ecnh tr\u1ee5 v\u00e0 h\u00ecnh vu\u00f4ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m cell ngu\u1ed3n. \u0110\u1ed1i t\u01b0\u1ee3ng nghi\u00ean c\u1ee9u c\u1ee7a b\u00e0i b\u00e1o n\u00e0y l\u00e0 m\u1ed9t cell vu\u00f4ng, ch\u1ee7 y\u1ebfu bao g\u1ed3m h\u1ec7 th\u1ed1ng v\u1eadt li\u1ec7u h\u00f3a h\u1ecdc c\u1ef1c d\u01b0\u01a1ng niken coban mangan v\u00e0 c\u1ef1c \u00e2m graphite. K\u00edch th\u01b0\u1edbc pin \u0111\u01a1n: XYZ =<\/p>\n","protected":false},"author":1,"featured_media":19757,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[],"class_list":["post-19756","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\/19756","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=19756"}],"version-history":[{"count":3,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19756\/revisions"}],"predecessor-version":[{"id":22028,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19756\/revisions\/22028"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media\/19757"}],"wp:attachment":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=19756"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=19756"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=19756"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}