{"id":2643,"date":"2013-02-22T17:33:36","date_gmt":"2013-02-22T10:33:36","guid":{"rendered":"http:\/\/snt.com.vn\/blog\/?p=2643"},"modified":"2013-02-22T17:33:36","modified_gmt":"2013-02-22T10:33:36","slug":"nh%e1%bb%afng-v%e1%bb%a5-n%e1%bb%95-pin-mtxt-b%e1%ba%a3n-ch%e1%ba%a5t-va-cach-phong-tranh","status":"publish","type":"post","link":"https:\/\/snt.com.vn\/blog\/nh%e1%bb%afng-v%e1%bb%a5-n%e1%bb%95-pin-mtxt-b%e1%ba%a3n-ch%e1%ba%a5t-va-cach-phong-tranh\/","title":{"rendered":"Nh\u1eefng v\u1ee5 n\u1ed5 pin MTXT: b\u1ea3n ch\u1ea5t v\u00e0 c\u00e1ch ph\u00f2ng tr\u00e1nh"},"content":{"rendered":"<div>\n<h2><\/h2>\n<\/div>\n<div>\n<p>C\u00e1c bi\u00ean t\u1eadp vi\u00ean c\u1ee7a trang tin\u00a0<em>Gizdomo<\/em> \u0111\u00e3 c\u00f3 m\u1ed9t b\u00e0i vi\u1ebft chuy\u00ean s\u00e2u nh\u1eb1m gi\u00fap b\u1ea1n \u0111\u1ecdc hi\u1ec3u l\u00ed do v\u00e0 c\u00e1ch ph\u00f2ng tr\u00e1nh nh\u1eefng v\u1ee5 ch\u00e1y n\u1ed5 pin tr\u00ean MTXT.<\/p>\n<p><br class=\"spacer_\" \/><\/p>\n<div><a href=\"http:\/\/www.thongtincongnghe.com\/sites\/default\/files\/images\/2013\/2\/22\/img-1361519349-1.jpg\"><img decoding=\"async\" src=\"https:\/\/vtcdn.com\/sites\/default\/files\/imagecache\/med\/images\/2013\/2\/22\/img-1361519349-1.jpg\" alt=\"\u1ea2nh\" \/><\/a><\/div>\n<p><br class=\"spacer_\" \/><\/p>\n<p>Nh\u1eb9 h\u01a1n, r\u1ebb h\u01a1n v\u00e0 ch\u1ee9a nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng h\u01a1n, c\u00e1c pin lithium-ion \u0111ang tr\u1edf th\u00e0nh ngu\u1ed3n \u0111i\u1ec7n ph\u1ed5 bi\u1ebfn nh\u1ea5t trong c\u00e1c m\u00e1y \u0111i\u1ec7n tho\u1ea1i, MTXT, \u00f4 t\u00f4 v\u00e0 c\u1ea3 m\u00e1y bay th\u01b0\u01a1ng m\u1ea1i. Tuy v\u1eady, lo\u1ea1i pin n\u00e0y c\u00f3 m\u1ed9t v\u1ea5n \u0111\u1ec1 &#8220;nho nh\u1ecf&#8221;: ch\u00fang kh\u00f4ng ch\u1ec9 ch\u1eadp \u0111i\u1ec7n, ch\u00fang n\u1ed5 tung v\u00e0 g\u00e2y h\u1ecfa ho\u1ea1n.<\/p>\n<p>L\u00ed do c\u1ee7a vi\u1ec7c pin lithium-ion (c\u00f2n g\u1ecdi t\u1eaft l\u00e0 Li-ion) ph\u00e1t n\u1ed5 l\u00e0 do m\u1ed9t qu\u00e1 tr\u00ecnh mang t\u00ean &#8220;thermal runaway&#8221; (t\u1ea1m d\u1ecbch: t\u1ecfa nhi\u1ec7t). V\u1ec1 b\u1ea3n ch\u1ea5t, qu\u00e1 tr\u00ecnh t\u1ecfa nhi\u1ec7t n\u00e0y l\u00e0 m\u1ed9t v\u00f2ng l\u1eb7p gia t\u0103ng n\u0103ng l\u01b0\u1ee3ng li\u00ean ti\u1ebfp, l\u00e0m cho nhi\u1ec7t \u0111\u1ed9 c\u1ee7a pin n\u00f3ng h\u01a1n, v\u00e0 sau \u0111\u00f3 ph\u00e1t n\u1ed5. Qu\u00e1 tr\u00ecnh n\u00e0y th\u1ef1c t\u1ebf l\u00e0 r\u1ea5t ph\u1ed5 bi\u1ebfn, v\u00e0 di\u1ec5n ra trong nhi\u1ec1u hi\u1ec7n t\u01b0\u1ee3ng v\u1eadt l\u00ed v\u00e0 h\u00f3a h\u1ecdc: t\u1eeb vi\u1ec7c tr\u1ed9n b\u00ea t\u00f4ng cho \u0111\u1ebfn c\u00e1c ng\u00f4i sao ph\u00e1t n\u1ed5 (t\u1ea1o ra si\u00eau t\u00e2n tinh).<\/p>\n<p>C\u00e1c pin Li-ion c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i qu\u00e1 tr\u00ecnh t\u1ecfa nhi\u1ec7t n\u00f3i tr\u00ean do nhi\u1ec1u l\u00ed do. C\u0169ng gi\u1ed1ng nh\u01b0 vi\u1ec7c l\u00e0m ch\u1eadp ngu\u1ed3n \u0111i\u1ec7n b\u1eb1ng c\u00e1ch n\u1ed1i \u0111\u1ea7u d\u01b0\u01a1ng v\u00e0 \u0111\u1ea7u \u00e2m tr\u1ef1c ti\u1ebfp v\u00e0o v\u1edbi nhau, vi\u1ec7c ch\u1eadp m\u1ea1ch tr\u00ean pin Li-ion c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi m\u1ed9t v\u1ebft r\u1ea1n tr\u00ean m\u00e0ng ph\u00e2n c\u00e1ch c\u1ef1c \u00e2m v\u00e0 c\u1ef1c d\u01b0\u01a1ng c\u1ee7a pin Li-ion, do \u0111\u00f3 c\u00f3 th\u1ec3 g\u00e2y ra t\u1ecfa nhi\u1ec7t. Nhi\u1ec7t \u0111\u1ed9 l\u1edbn h\u01a1n 60 \u0111\u1ed9 C, s\u1ea1c qu\u00e1 \u0111\u1ea7y pin trong th\u1eddi gian d\u00e0i, ho\u1eb7c s\u1eeda ch\u1eefa, thay \u0111\u1ed5i pin tr\u00e1i v\u1edbi nguy\u00ean t\u1eafc c\u00f3 th\u1ec3 g\u00e2y ra n\u1ed5 pin.<\/p>\n<p>Cho d\u00f9 nguy\u00ean nh\u00e2n l\u00e0 g\u00ec \u0111i ch\u0103ng n\u1eefa, m\u1ed9t khi c\u00f3 \u0111\u1ee7 \u0111i\u1ec1u ki\u1ec7n, coban oxit trong pin s\u1ebd t\u1ea1o ra v\u1ee5 n\u1ed5. Joe Lamoreux, ph\u00f3 ch\u1ee7 t\u1ecbch Nghi\u00ean c\u1ee9u v\u00e0 Ph\u00e1t tri\u1ec3n t\u1ea1i Valence Technology gi\u1ea3i th\u00edch v\u1edbi Inforword: &#8220;Khi b\u1ea1n l\u00e0m cho ch\u1ea5t n\u00e0y n\u00f3ng l\u00ean v\u00e0 khi n\u00f3 \u0111\u1ea1t t\u1edbi m\u1ed9t nhi\u1ec7t \u0111\u1ed9 n\u00e0o \u0111\u00f3, n\u00f3 s\u1ebd t\u1ef1 \u0111\u1ed9ng li\u00ean ti\u1ebfp t\u0103ng nhi\u1ec7t \u0111\u1ed9 d\u1eabn \u0111\u1ebfn ch\u00e1y n\u1ed5&#8221;. M\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, ch\u1ea5t \u0111i\u1ec7n gi\u1ea3i b\u1ed1c h\u01a1i v\u00e0 pin b\u1ecb n\u1ee9t. Pin s\u1ebd ti\u1ebfp t\u1ee5c ch\u00e1y t\u1eeb b\u00ean trong ra b\u00ean ngo\u00e0i n\u1ebfu ti\u1ebfp x\u00fac v\u1edbi tia l\u1eeda \u0111i\u1ec7n ho\u1eb7c nhi\u1ec7t \u0111\u1ed9 cao.<\/p>\n<p><br class=\"spacer_\" \/><\/p>\n<div><a href=\"http:\/\/www.thongtincongnghe.com\/sites\/default\/files\/images\/2013\/2\/22\/img-1361519349-2.jpg\"><img decoding=\"async\" src=\"https:\/\/vtcdn.com\/sites\/default\/files\/imagecache\/med\/images\/2013\/2\/22\/img-1361519349-2.jpg\" alt=\"\u1ea2nh\" \/><\/a><\/div>\n<p><br class=\"spacer_\" \/><\/p>\n<p>Tuy t\u1ec9 l\u1ec7 hi\u1ec7n t\u01b0\u1ee3ng &#8220;kh\u00f4ng th\u1ec3 ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c&#8221; x\u1ea3y ra l\u00e0 kh\u00e1 th\u1ea5p, vi\u1ec7c s\u1ed1 l\u01b0\u1ee3ng pin Li-ion \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0 qu\u00e1 l\u1edbn t\u1ea1o ra nh\u1eefng v\u1ee5 vi\u1ec7c r\u1ea5t nghi\u00eam tr\u1ecdng. N\u0103m 2006, g\u1ea7n nh\u01b0 t\u1ea5t c\u1ea3 c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t MTXT l\u1edbn nh\u01b0 Apple, HP, Toshiba, Lenovo v\u00e0 Dell \u0111\u1ec1u ph\u1ea3i thu h\u1ed3i m\u00e1y sau m\u1ed9t s\u1ed1 v\u1ee5 ch\u00e1y pin. Ri\u00eang Apple \u0111\u00e3 thu h\u1ed3i 1,8 tri\u1ec7u iBook v\u00e0 PowerBook, sau khi c\u00f3 9 v\u1ee5 t\u1ecfa nhi\u1ec7t qu\u00e1 m\u1ee9c \u0111\u01b0\u1ee3c th\u00f4ng b\u00e1o.<\/p>\n<p>H\u01a1n th\u1ebf n\u1eefa, k\u00edch c\u1ee1 pin, c\u00e1ch l\u1eafp \u0111\u1eb7t c\u1ee7a ch\u00fang v\u00e0 s\u1ed1 l\u01b0\u1ee3ng cell \u0111\u1ec1u g\u00e2y \u1ea3nh h\u01b0\u1edfng t\u1edbi m\u1ee9c \u0111\u1ed9 c\u1ee7a qu\u00e1 tr\u00ecnh t\u1ecfa nhi\u1ec7t. C\u00e1c pin nh\u1ecf trong c\u00e1c m\u00e1y \u1ea3nh DSLR s\u1eed d\u1ee5ng \u00edt cell do \u0111\u00f3 kh\u1ea3 n\u0103ng qu\u00e1 tr\u00ecnh t\u1ecfa nhi\u1ec7t b\u1ecb &#8220;l\u00e2y lan&#8221; t\u1eeb cell h\u1ecfng sang c\u00e1c cell kh\u00e1c l\u00e0 r\u1ea5t \u00edt. C\u00e1c pin kh\u1ed5ng l\u1ed3 tr\u00ean m\u00e1y bay Boeing 787 Dreamliner, m\u1eb7t kh\u00e1c, l\u1ea1i gi\u1ed1ng nh\u01b0 l\u00e0 nh\u1eefng qu\u1ea3 bom \u0111\u01b0\u1ee3c c\u1ed1 t\u00ecnh l\u1eafp \u0111\u1eb7t. C\u00e1c pin n\u00e0y b\u1ecb \u0111\u1eb7t v\u00e0o trong m\u1ed9t h\u1ed9p kim lo\u1ea1i k\u00edn kh\u00f4ng \u0111\u01b0\u1ee3c t\u1ea3n nhi\u1ec7t, v\u00e0 khi m\u1ed9t cell duy nh\u1ea5t \u0111\u1ee7 n\u00f3ng \u0111\u1ec3 t\u1ea1o ra tia l\u1eeda \u0111i\u1ec7n, t\u1ea5t c\u1ea3 nhanh ch\u00f3ng tr\u1edf n\u00ean t\u1ed3i t\u1ec7.<\/p>\n<p>Tuy v\u1eady, b\u1ea1n c\u0169ng kh\u00f4ng c\u1ea7n ph\u1ea3i lo l\u1eafng v\u1ec1 &#8220;qu\u1ea3 bom&#8221; Li-ion tr\u00ean MTXT c\u1ee7a m\u00ecnh. Th\u1ef1c t\u1ebf, c\u00e1c pin Li-ion ph\u1ea7n l\u1edbn \u0111\u1ec1u ho\u1ea1t \u0111\u1ed9ng an to\u00e0n v\u00e0 \u1ed5n \u0111\u1ecbnh trong su\u1ed1t v\u00f2ng \u0111\u1eddi c\u1ee7a n\u00f3. Pin Li-ion ch\u1ec9 c\u00f3 tu\u1ed5i \u0111\u1eddi 2 \u0111\u1ebfn 3 n\u0103m, do v\u1eady, b\u1ea1n n\u00ean thay pin trong v\u00f2ng 3 n\u0103m nh\u1eb1m tr\u00e1nh ph\u00e2n r\u00e3 c\u00e1c cell c\u1ee7a pin qu\u00e1 m\u1ee9c an to\u00e0n. Ngo\u00e0i ra, b\u1ea1n ch\u1ec9 n\u00ean s\u1ea1c l\u1ea1i pin n\u1ebfu dung l\u01b0\u1ee3ng gi\u1ea3m xu\u1ed1ng 50%. Cu\u1ed1i c\u00f9ng, kh\u00f4ng n\u00ean \u0111\u1ec3 \u0111i\u1ec7n th\u1ebf xu\u1ed1ng qu\u00e1 th\u1ea5p g\u00e2y t\u1ed5n h\u1ea1i cho pin.<\/p>\n<p>(VnReview)<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>C\u00e1c bi\u00ean t\u1eadp vi\u00ean c\u1ee7a trang tin\u00a0Gizdomo \u0111\u00e3 c\u00f3 m\u1ed9t b\u00e0i vi\u1ebft chuy\u00ean s\u00e2u nh\u1eb1m gi\u00fap b\u1ea1n \u0111\u1ecdc hi\u1ec3u l\u00ed<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[73,1],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.2.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Nh\u1eefng v\u1ee5 n\u1ed5 pin MTXT: b\u1ea3n ch\u1ea5t v\u00e0 c\u00e1ch ph\u00f2ng tr\u00e1nh - Blog SNT - C\u00f4ng Ty TNHH Si\u00eau Nh\u1eadt Thanh - Sao Nhanh Th\u1ebf<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/snt.com.vn\/blog\/nh\u1eefng-v\u1ee5-n\u1ed5-pin-mtxt-b\u1ea3n-ch\u1ea5t-va-cach-phong-tranh\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Nh\u1eefng v\u1ee5 n\u1ed5 pin MTXT: b\u1ea3n ch\u1ea5t v\u00e0 c\u00e1ch ph\u00f2ng tr\u00e1nh - 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