{"id":20327,"date":"2019-08-16T06:57:52","date_gmt":"2019-08-16T06:57:52","guid":{"rendered":"http:\/\/dgbellvietnam.com\/safety-and-risk-grading-of-lithium-battery-testing\/"},"modified":"2024-11-06T15:22:16","modified_gmt":"2024-11-06T08:22:16","slug":"safety-and-risk-grading-of-lithium-battery-testing","status":"publish","type":"post","link":"https:\/\/dgbellvietnam.com\/en\/safety-and-risk-grading-of-lithium-battery-testing\/","title":{"rendered":"Ph\u00e2n lo\u1ea1i m\u1ee9c \u0111\u1ed9 an to\u00e0n v\u00e0 r\u1ee7i ro c\u1ee7a th\u1eed nghi\u1ec7m pin lithium"},"content":{"rendered":"
\n

Trong 20 n\u0103m qua, c\u00f4ng ngh\u1ec7 pin lithium c\u00f3 th\u1ec3 s\u1ea1c l\u1ea1i \u0111\u00e3 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng. N\u00f3 \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu c\u1ee7a cu\u1ed9c s\u1ed1ng hi\u1ec7n \u0111\u1ea1i nh\u1edd hi\u1ec7u su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i c\u1ee7a n\u00f3. Tuy nhi\u00ean, v\u1edbi s\u1ef1 m\u1edf r\u1ed9ng d\u1ea7n d\u1ea7n c\u1ee7a ph\u1ea1m vi \u1ee9ng d\u1ee5ng v\u00e0 m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng \u0111\u01a1n th\u1ec3 ri\u00eang l\u1ebb ng\u00e0y c\u00e0ng t\u0103ng, dung l\u01b0\u1ee3ng ng\u00e0y c\u00e0ng l\u1edbn h\u01a1n v\u00e0 ng\u00e0y c\u00e0ng nhi\u1ec1u v\u1ee5 tai n\u1ea1n n\u1ed5 x\u1ea3y ra. Hi\u1ec7u su\u1ea5t an to\u00e0n c\u1ee7a n\u00f3 \u0111\u00e3 thu h\u00fat ng\u00e0y c\u00e0ng nhi\u1ec1u s\u1ef1 ch\u00fa \u00fd.<\/span><\/span><\/p>\n

Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u00e1t hi\u1ec7n an to\u00e0n pin lithium ng\u00e0y c\u00e0ng ho\u00e0n thi\u1ec7n. M\u1ed9t s\u1ed1 ti\u00eau chu\u1ea9n th\u1eed nghi\u1ec7m an to\u00e0n \u0111\u00e3 \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u tr\u00ean ph\u1ea1m vi qu\u1ed1c t\u1ebf v\u00e0 trong n\u01b0\u1edbc. V\u00ed d\u1ee5, th\u1eed nghi\u1ec7m ng\u1eafn m\u1ea1ch b\u00ean trong c\u01b0\u1ee1ng b\u1ee9c c\u1ee7a JIS C8714 t\u1ea1i Nh\u1eadt B\u1ea3n v\u00e0 th\u1eed nghi\u1ec7m nhi\u1ec7t \u0111\u1ed9 gi\u1edbi h\u1ea1n tr\u00ean v\u00e0 d\u01b0\u1edbi c\u1ee7a IEC. Trung Qu\u1ed1c c\u0169ng \u0111\u00e3 t\u00f9y ch\u1ec9nh c\u00e1c ti\u00eau chu\u1ea9n b\u1eaft bu\u1ed9c m\u1edbi cho pin lithium.<\/span><\/span><\/p>\n

<\/div>\n

\u0110\u1ed9 an to\u00e0n c\u1ee7a pin lithium nh\u01b0 th\u1ebf n\u00e0o?<\/span><\/span><\/strong><\/span><\/span><\/h2>\n

T\u00ednh an to\u00e0n c\u1ee7a pin lithium kh\u00f4ng ch\u1ec9 c\u00f3 ngh\u0129a l\u00e0 kh\u00f4ng c\u00f3 ch\u00e1y n\u1ed5 trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m kh\u00e1c nhau. \u0110i\u1ec1u quan tr\u1ecdng nh\u1ea5t l\u00e0 \u0111\u1ea3m b\u1ea3o ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng b\u1ecb t\u1ed5n h\u1ea1i do l\u1ea1m d\u1ee5ng pin. C\u00e1c ti\u00eau chu\u1ea9n v\u1ec1 pin lithium, ch\u1eb3ng h\u1ea1n nh\u01b0 IEC 62133 v\u00e0 GB\/T 28164, c\u00f3 \u0111\u1ecbnh ngh\u0129a r\u00f5 r\u00e0ng v\u1ec1 c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng kh\u00e1c nhau c\u1ee7a k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m pin lithium, ch\u1eb3ng h\u1ea1n nh\u01b0 r\u00f2 r\u1ec9, x\u00ec h\u01a1i, v\u1ee1 v\u00e0 ch\u00e1y.<\/span><\/span><\/p>\n

Trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng, pin lithium ti\u1ebfp t\u1ee5c tr\u1ea3i qua c\u00e1c ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc \u0111\u1ec3 t\u1ea1o ra c\u00e1c electron ch\u1ea3y theo h\u01b0\u1edbng \u0111\u1ec3 cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng li\u00ean t\u1ee5c. Ngo\u00e0i ra, nhi\u1ec7t \u0111\u01b0\u1ee3c t\u1ea1o ra trong ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc. N\u1ebfu nhi\u1ec7t kh\u00f4ng lan truy\u1ec1n k\u1ecbp th\u1eddi, n\u00f3 s\u1ebd khi\u1ebfn nhi\u1ec7t \u0111\u1ed9 t\u0103ng m\u1ea5t ki\u1ec3m so\u00e1t. Tuy nhi\u00ean, s\u1ef1 tho\u00e1t nhi\u1ec7t c\u00f3 th\u1ec3 g\u00e2y ra thi\u1ec7t h\u1ea1i cho pin, ch\u1eb3ng h\u1ea1n nh\u01b0 x\u00ec h\u01a1i d\u1eef d\u1ed9i, v\u1ee1 v\u00e0 ch\u00e1y.<\/span><\/span><\/p>\n

Nguy\u00ean nh\u00e2n g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t c\u1ee7a pin lithium nh\u01b0 sau:<\/span><\/span><\/strong><\/p>\n

    \n
  1. Vi\u1ec7c r\u00e1ch l\u1edbp ng\u0103n c\u00e1ch gi\u1eefa \u0111i\u1ec7n c\u1ef1c \u00e2m v\u00e0 \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng c\u1ee7a pin lithium ion c\u00f3 th\u1ec3 g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng \u0111o\u1ea3n m\u1ea1ch, v\u00e0 hi\u1ec7n t\u01b0\u1ee3ng \u0111o\u1ea3n m\u1ea1ch th\u01b0\u1eddng g\u00e2y ra s\u1ef1 s\u1ee5p \u0111\u1ed5 nhi\u1ec7t;<\/span><\/span><\/li>\n
  2. Nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng qu\u00e1 cao, d\u1eabn \u0111\u1ebfn m\u1ea5t \u1ed5n \u0111\u1ecbnh v\u1ec1 m\u1eb7t h\u00f3a h\u1ecdc;<\/span><\/span><\/li>\n
  3. C\u00e1c ho\u1ea1t \u0111\u1ed9ng l\u1ea1m d\u1ee5ng kh\u00e1c, v.v.<\/span><\/span><\/li>\n<\/ol>\n

    Ngo\u00e0i ra c\u00f2n c\u00f3 c\u00e1c thi\u1ebft b\u1ecb ki\u1ec3m tra pin t\u01b0\u01a1ng \u1ee9ng cho c\u00e1c m\u1ee5c ki\u1ec3m tra an to\u00e0n pin kh\u00e1c nhau. B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb ki\u1ec3m tra pin tuy\u1ec7t v\u1eddi n\u00e0y, ch\u00fang t\u00f4i tin r\u1eb1ng b\u1ea1n c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m c\u1ee7a ch\u00fang t\u00f4i!<\/span><\/span><\/p>\n

    C\u00e1c m\u1ee5c ki\u1ec3m tra<\/span><\/span><\/strong><\/span><\/span><\/h2>\n

    Quy \u0111\u1ecbnh v\u1ec1 ph\u00e2n lo\u1ea1i h\u00e0ng h\u00f3a nguy hi\u1ec3m theo Khuy\u1ebfn ngh\u1ecb c\u1ee7a Li\u00ean h\u1ee3p qu\u1ed1c v\u1ec1 V\u1eadn chuy\u1ec3n H\u00e0ng h\u00f3a Nguy hi\u1ec3m. C\u00e1c s\u1ea3n ph\u1ea9m pin c\u00f3 ch\u1ee9a ch\u1ea5t \u0111i\u1ec7n ph\u00e2n axit m\u1ea1nh ho\u1eb7c ki\u1ec1m m\u1ea1nh l\u00e0 h\u00e0ng h\u00f3a nguy hi\u1ec3m Lo\u1ea1i 8 (\u0103n m\u00f2n) v\u00e0 pin lithium l\u00e0 h\u00e0ng h\u00f3a nguy hi\u1ec3m Lo\u1ea1i 9 (L\u1eb7t v\u1eb7t).<\/span><\/span><\/p>\n

    C\u00e1c h\u1ea1ng m\u1ee5c ki\u1ec3m tra an to\u00e0n s\u1ea3n ph\u1ea9m pin \u0111\u01b0\u1ee3c chia th\u00e0nh:<\/span><\/span><\/strong><\/p>\n

      \n
    1. \u0110i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng d\u1ef1 ki\u1ebfn \u200b\u200bho\u1eb7c m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng: <\/span><\/span>m\u00f4 ph\u1ecfng \u0111\u1ed9 cao<\/span><\/span><\/u><\/a> , <\/span><\/span>chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9<\/span><\/span><\/u><\/a> , <\/span><\/span>rung \u0111\u1ed9ng<\/span><\/span><\/u><\/a> , s\u1ea1c t\u1ed1c \u0111\u1ed9 th\u1ea5p, v.v.;<\/span><\/span><\/li>\n
    2. \u00a0S\u1eed d\u1ee5ng sai m\u1ee5c \u0111\u00edch c\u00f3 th\u1ec3 l\u01b0\u1eddng tr\u01b0\u1edbc \u0111\u01b0\u1ee3c: \u0111o\u1ea3n m\u1ea1ch b\u00ean ngo\u00e0i, <\/span><\/span>va \u0111\u1eadp m\u1ea1nh<\/span><\/span><\/u><\/a> , <\/span><\/span>\u0111\u00f9n<\/span><\/span><\/u><\/a> , <\/span><\/span>va \u0111\u1eadp c\u01a1 h\u1ecdc<\/span><\/span><\/u><\/a> , <\/span>r\u01a1i t\u1ef1 do<\/span><\/u><\/a> , x\u1ea3 c\u01b0\u1ee1ng b\u1ee9c, s\u1ea1c b\u1ea5t th\u01b0\u1eddng, <\/span>l\u1ea1m d\u1ee5ng nhi\u1ec7t<\/span><\/u><\/a> , l\u1eafp \u0111\u1eb7t kh\u00f4ng \u0111\u00fang c\u00e1ch, x\u1ea3 qu\u00e1 m\u1ee9c, s\u1ea1c qu\u00e1 m\u1ee9c, s\u1ea1c t\u1ed1c \u0111\u1ed9 cao. \u0110\u1ee3i.<\/span><\/span> <\/u><\/u><\/li>\n<\/ol>\n

      \u0110\u1ea7u ti\u00ean, ph\u00e2n lo\u1ea1i c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng nguy hi\u1ec3m kh\u00e1c nhau. Vi\u1ec7c ph\u00e2n lo\u1ea1i ch\u1ee7 y\u1ebfu d\u1ef1a tr\u00ean kh\u1ea3 n\u0103ng x\u1ea3y ra c\u1ee7a t\u1eebng m\u1ed1i nguy hi\u1ec3m v\u00e0 h\u1eadu qu\u1ea3 c\u1ee7a m\u1ed1i nguy hi\u1ec3m \u0111\u00f3.<\/span><\/span><\/p>\n

      Nguy c\u01a1 c\u1ee7a pin<\/span><\/span><\/strong><\/span><\/span><\/h2>\n

      C\u00e1c m\u1ed1i nguy hi\u1ec3m c\u1ee7a pin ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c chia th\u00e0nh:<\/span><\/span><\/strong><\/p>\n

        \n
      1. Nguy c\u01a1 h\u00f3a ch\u1ea5t<\/span><\/span><\/strong>
        \n Nguy c\u01a1 h\u00f3a ch\u1ea5t c\u00f3 ngh\u0129a l\u00e0 ch\u1ea5t \u0111i\u1ec7n ph\u00e2n tr\u00e0n ho\u1eb7c kh\u00ed h\u00f3a h\u1ecdc k\u1ebft t\u1ee7a.<\/span><\/span><\/li>\n
      2. Nguy c\u01a1 \u0111i\u1ec7n;<\/span><\/span><\/strong>
        \n Nguy c\u01a1 \u0111i\u1ec7n l\u00e0 nguy c\u01a1 \u0111i\u1ec7n ph\u00e1t sinh trong qu\u00e1 tr\u00ecnh s\u1ea1c v\u00e0 x\u1ea3.<\/span><\/span><\/li>\n
      3. Nguy c\u01a1 t\u00edch l\u0169y v\u1ec1 h\u00f3a ch\u1ea5t v\u00e0 \u0111i\u1ec7n<\/span><\/span><\/strong>
        \n Nguy c\u01a1 v\u1ec1 \u0111i\u1ec7n l\u00e0 nguy c\u01a1 v\u1ec1 \u0111i\u1ec7n x\u1ea3y ra trong qu\u00e1 tr\u00ecnh s\u1ea1c v\u00e0 x\u1ea3. Nguy c\u01a1 t\u00edch l\u0169y v\u1ec1 h\u00f3a ch\u1ea5t v\u00e0 \u0111i\u1ec7n ch\u1ee7 y\u1ebfu \u0111\u1ec1 c\u1eadp \u0111\u1ebfn kh\u1ea3 n\u0103ng ch\u00e1y, kh\u00ed tr\u01a1 ho\u1eb7c kh\u00ed \u0111\u1ed9c h\u1ea1i, b\u1eafn t\u00f3e. V\u00e0 nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 l\u00e0 do nhi\u1ec7t \u0111\u1ed9 t\u0103ng cao.<\/span><\/span><\/li>\n
      4. Nguy hi\u1ec3m \u0111i\u1ec7n \u00e1p cao (>60 V)<\/span><\/span><\/strong><\/li>\n
      5. Nguy c\u01a1 h\u1ecfng pin<\/span><\/span><\/strong><\/li>\n<\/ol>\n

        \u0110\u1ed1i v\u1edbi vi\u1ec7c ph\u00e1t hi\u1ec7n c\u00e1c s\u1ea3n ph\u1ea9m pin lithium, hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y ch\u1ee7 y\u1ebfu bao g\u1ed3m c\u00e1c kh\u1ea3 n\u0103ng sau:<\/span><\/span><\/strong><\/p>\n

          \n
        • li\u1ec7u ch\u1ea5t l\u01b0\u1ee3ng c\u00f3 b\u1ecb m\u1ea5t \u0111i kh\u00f4ng;<\/span><\/span><\/strong><\/li>\n
        • c\u00f3 r\u00f2 r\u1ec9 kh\u00f4ng;<\/span><\/span><\/strong><\/li>\n
        • gi\u1ea3m ph\u00e1t;<\/span><\/span><\/strong><\/li>\n
        • ch\u1eadp m\u1ea1ch;<\/span><\/span><\/strong><\/li>\n
        • v\u1ee1;<\/span><\/span><\/strong><\/li>\n
        • c\u00f3 x\u1ea3y ra n\u1ed5 hay h\u1ecfa ho\u1ea1n kh\u00f4ng;<\/span><\/span><\/strong><\/li>\n<\/ul>\n

          M\u1ee9c \u0111\u1ed9 nguy hi\u1ec3m c\u1ee7a k\u1ebft qu\u1ea3 ki\u1ec3m tra pin<\/span><\/span><\/strong><\/span><\/span><\/h2>\n

          D\u1ef1a tr\u00ean hi\u1ec7n t\u01b0\u1ee3ng tr\u00ean, h\u00e3y tham kh\u1ea3o EUCAR (H\u1ed9i \u0111\u1ed3ng Nghi\u00ean c\u1ee9u v\u00e0 Ph\u00e1t tri\u1ec3n \u00d4 t\u00f4 Ch\u00e2u \u00c2u) \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 nguy hi\u1ec3m trong c\u00e1c \u1ee9ng d\u1ee5ng \u00f4 t\u00f4 v\u00e0 ph\u00e2n lo\u1ea1i c\u00e1c m\u1ed1i nguy hi\u1ec3m kh\u00e1c nhau c\u1ee7a k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m pin lithium.<\/span><\/span><\/p>\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n\n\n
          M\u1ee9c \u0111\u1ed9 nguy hi\u1ec3m<\/span><\/span><\/strong><\/td>\nHi\u1ec7n t\u01b0\u1ee3ng<\/span><\/span><\/strong><\/td>\nTi\u00eau chu\u1ea9n l\u1edbp ho\u1eb7c t\u00e1c \u0111\u1ed9ng<\/span><\/span><\/strong><\/td>\n<\/tr>\n
          0<\/span><\/span><\/td>\nkh\u00f4ng c\u00f3 hi\u1ec7u l\u1ef1c<\/span><\/span><\/td>\nKh\u00f4ng c\u00f3 hi\u1ec7u \u1ee9ng, kh\u00f4ng m\u1ea5t hi\u1ec7u \u1ee9ng<\/span><\/span><\/td>\n<\/tr>\n
          1<\/span><\/span><\/td>\nB\u1eaft \u0111\u1ea7u t\u1ef1 b\u1ea3o v\u1ec7<\/span><\/span><\/td>\nKh\u00f4ng c\u00f3 t\u00e1c d\u1ee5ng, kh\u00f4ng r\u00f2 r\u1ec9 kh\u00f4ng kh\u00ed, kh\u00f4ng r\u00f2 r\u1ec9, kh\u00f4ng ch\u00e1y ho\u1eb7c ch\u00e1y, kh\u00f4ng n\u1ee9t, kh\u00f4ng n\u1ed5, kh\u00f4ng ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc ho\u1eb7c m\u1ea5t nhi\u1ec7t, ph\u1ea3i s\u1eeda ch\u1eefa thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7<\/span><\/span><\/td>\n<\/tr>\n
          2<\/span><\/span><\/td>\nC\u00f3 \u1ea3nh h\u01b0\u1edfng\/b\u1ecb t\u1ed5n h\u1ea1i<\/span><\/span><\/td>\nKh\u00f4ng r\u00f2 r\u1ec9 kh\u00f4ng kh\u00ed, kh\u00f4ng r\u00f2 r\u1ec9, kh\u00f4ng ch\u00e1y ho\u1eb7c ch\u00e1y, kh\u00f4ng n\u1ee9t, kh\u00f4ng n\u1ed5, kh\u00f4ng ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc ho\u1eb7c m\u1ea5t nhi\u1ec7t, nh\u00ecn chung c\u00f3 th\u1ec3 s\u1eeda ch\u1eefa \u0111\u01b0\u1ee3c<\/span><\/span><\/td>\n<\/tr>\n
          3<\/span><\/span><\/td>\nCh\u1ea5t l\u01b0\u1ee3ng r\u00f2 r\u1ec9 gi\u1ea3m <50%<\/span><\/span><\/td>\nKh\u00f4ng r\u00f2 r\u1ec9, kh\u00f4ng ch\u00e1y, kh\u00f4ng n\u1ee9t, kh\u00f4ng n\u1ed5, tr\u1ecdng l\u01b0\u1ee3ng ch\u1ea5t \u0111i\u1ec7n ph\u00e2n gi\u1ea3m <50%<\/span><\/span><\/td>\n<\/tr>\n
          4<\/span><\/span><\/td>\nGi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng r\u00f2 r\u1ec9 \u226550%<\/span><\/span><\/td>\nKh\u00f4ng ch\u00e1y, kh\u00f4ng n\u1ee9t, kh\u00f4ng n\u1ed5, tr\u1ecdng l\u01b0\u1ee3ng ch\u1ea5t \u0111i\u1ec7n ph\u00e2n gi\u1ea3m \u226550%<\/span><\/span><\/td>\n<\/tr>\n
          5<\/span><\/span><\/td>\nCh\u00e1y ho\u1eb7c ch\u00e1y<\/span><\/span><\/td>\nKh\u00f4ng n\u1ee9t, kh\u00f4ng n\u1ed5 (kh\u00f4ng tr\u00e0n)<\/span><\/span><\/td>\n<\/tr>\n
          6<\/span><\/span><\/td>\nv\u1ee1<\/span><\/span><\/td>\nKh\u00f4ng n\u1ed5 (cho ph\u00e9p b\u1eafn tung t\u00f3e)<\/span><\/span><\/td>\n<\/tr>\n
          7<\/span><\/span><\/td>\nv\u1ee5 n\u1ed5<\/span><\/span><\/td>\nV\u1ee5 n\u1ed5, \u0111\u01a1n v\u1ecb ho\u00e0n to\u00e0n s\u1ee5p \u0111\u1ed5<\/span><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          M\u1ee9c \u0111\u1ed9 nguy hi\u1ec3m t\u1eeb 1-4 th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 an to\u00e0n.<\/span><\/span><\/strong><\/span><\/p>\n

          Nh\u01b0 c\u00f3 th\u1ec3 th\u1ea5y t\u1eeb tr\u00ean, c\u00f3 nhi\u1ec1u hi\u1ec7n t\u01b0\u1ee3ng nguy hi\u1ec3m trong qu\u00e1 tr\u00ecnh ph\u00e1t hi\u1ec7n pin lithium. \u0110\u1ec3 tr\u00e1nh m\u1ecdi ng\u01b0\u1eddi b\u1ecb t\u1ed5n h\u1ea1i v\u00f4 c\u1edb, vi\u1ec7c s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb ki\u1ec3m tra pin an to\u00e0n v\u00e0 b\u1ea3o m\u1eadt h\u01a1n \u0111\u1ec3 ki\u1ec3m tra c\u00e0ng c\u1ea7n thi\u1ebft h\u01a1n. Ch\u1ec9 b\u1eb1ng c\u00e1ch n\u00e0y, kh\u00f4ng ch\u1ec9 c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n cho nh\u00e2n vi\u00ean m\u00e0 c\u00f2n c\u00f3 \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 ki\u1ec3m tra ch\u00ednh x\u00e1c h\u01a1n.<\/span><\/span><\/p>\n

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

          Trong 20 n\u0103m qua, c\u00f4ng ngh\u1ec7 pin lithium c\u00f3 th\u1ec3 s\u1ea1c l\u1ea1i \u0111\u00e3 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng. N\u00f3 \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu c\u1ee7a cu\u1ed9c s\u1ed1ng hi\u1ec7n \u0111\u1ea1i nh\u1edd hi\u1ec7u su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i c\u1ee7a n\u00f3. Tuy nhi\u00ean, v\u1edbi s\u1ef1 m\u1edf r\u1ed9ng d\u1ea7n d\u1ea7n c\u1ee7a ph\u1ea1m vi \u1ee9ng d\u1ee5ng v\u00e0 m\u1eadt \u0111\u1ed9 n\u0103ng<\/p>\n","protected":false},"author":1,"featured_media":20328,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[],"class_list":["post-20327","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\/20327","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=20327"}],"version-history":[{"count":3,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/20327\/revisions"}],"predecessor-version":[{"id":22141,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/20327\/revisions\/22141"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media\/20328"}],"wp:attachment":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=20327"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=20327"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=20327"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}