{"id":7986,"date":"2021-11-20T15:51:57","date_gmt":"2021-11-20T08:51:57","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=7986"},"modified":"2021-11-20T17:12:34","modified_gmt":"2021-11-20T10:12:34","slug":"vi-sao-acquy-lai-co-the-tich-tru-duoc-dien","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/vi-sao-acquy-lai-co-the-tich-tru-duoc-dien\/","title":{"rendered":"V\u00ec sao \u0103cquy l\u1ea1i c\u00f3 th\u1ec3 t\u00edch tr\u1eef \u0111\u01b0\u1ee3c \u0111i\u1ec7n?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">C\u00f3 nh\u1eefng lo\u1ea1i pin \u0111i\u1ec7n c\u00f3 th\u1ec3 n\u1ea1p, ph\u00f3ng \u0111i\u1ec7n nhi\u1ec1u l\u1ea7n. Ng\u01b0\u1eddi ta g\u1ecdi c\u00e1c pin \u0111i\u1ec7n n\u00e0y l\u00e0 \u0103cquy hay c\u00f2n g\u1ecdi l\u00e0 pin \u0111i\u1ec7n t\u1eed th\u1ee9 c\u1ea5p. Nh\u01b0ng th\u1ef1c ra \u0103cquy c\u0169ng kh\u00f4ng th\u1ec3 tr\u1ef1c ti\u1ebfp t\u00edch tr\u1eef \u0111i\u1ec7n. V\u00ec \u0111i\u1ec7n l\u00e0 \u0111i\u1ec7n t\u1eed chuy\u1ec3n \u0111\u1ed9ng c\u00f3 \u0111\u1ecbnh h\u01b0\u1edbng. M\u00e0 l\u01b0\u1ee3ng l\u1edbn s\u1ed1 \u0111i\u1ec7n t\u1eed kh\u00f4ng ph\u1ea3i nh\u01b0 lo\u1ea1i v\u1eadt d\u1ee5ng th\u01b0\u1eddng d\u00f9ng m\u00e0 c\u00f3 th\u1ec3 ch\u1ea5t l\u00ean xe \u0111\u1ec3 t\u00edch tr\u1eef \u0111\u01b0\u1ee3c. Qu\u1ea3 th\u1ef1c l\u00e0 \u0103cquy \u0111\u00e3 \u0111em n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n t\u1eeb b\u00ean ngo\u00e0i v\u00e0o l\u00e0m cho trong n\u1ed9i b\u1ed9 pin x\u1ea3y ra ph\u1ea3n \u1ee9ng ho\u00e1 h\u1ecdc khi\u1ebfn \u0111i\u1ec7n n\u0103ng bi\u1ebfn th\u00e0nh n\u0103ng l\u01b0\u1ee3ng ho\u00e1 h\u1ecdc. Khi s\u1eed d\u1ee5ng \u0111i\u1ec7n (ph\u00f3ng \u0111i\u1ec7n), trong n\u1ed9i b\u1ed9 c\u1ee7a pin s\u1ebd ti\u1ebfn h\u00e0nh ph\u1ea3n \u1ee9ng ho\u00e1 h\u1ecdc theo chi\u1ec1u ng\u01b0\u1ee3c l\u1ea1i, khi\u1ebfn n\u0103ng l\u01b0\u1ee3ng ho\u00e1 h\u1ecdc \u0111\u00e3 t\u00edch tr\u1eef chuy\u1ec3n th\u00e0nh \u0111i\u1ec7n n\u0103ng. Lo\u1ea1i bi\u1ebfn \u0111\u1ed5i thu\u1eadn ngh\u1ecbch n\u00e0y c\u00f3 th\u1ec3 l\u1eb7p \u0111i l\u1eb7p l\u1ea1i nhi\u1ec1u l\u1ea7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi ti\u1ebfn h\u00e0nh n\u1ea1p \u0111i\u1ec7n, trong \u0103cquy s\u1ebd x\u1ea3y ra bi\u1ebfn \u0111\u1ed5i sau \u0111\u00e2y: Tr\u00ean c\u1ef1c d\u01b0\u01a1ng t\u1ea1o th\u00e0nh ch\u00ec \u0111ioxit, c\u00f2n tr\u00ean c\u1ef1c \u00e2m l\u00e0 kim lo\u1ea1i ch\u00ec x\u1ed1p nh\u01b0 b\u1ecdt bi\u1ec3n. Khi n\u1ea1p \u0111i\u1ec7n th\u00ec n\u1ed3ng \u0111\u1ed9 dung d\u1ecbch axit sunfuric t\u0103ng n\u00ean m\u1eadt \u0111\u1ed9 c\u1ee7a dung d\u1ecbch axit t\u0103ng l\u00ean. N\u1ebfu m\u1eadt \u0111\u1ed9 c\u1ee7a dung d\u1ecbch \u0111\u1ea1t \u0111\u1ebfn 1,28 g\/cm3 th\u00ec kh\u00f4ng n\u00ean ti\u1ebfp t\u1ee5c n\u1ea1p \u0111i\u1ec7n n\u1eefa.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi \u00f4 t\u00f4 kh\u1edfi \u0111\u1ed9ng ho\u1eb7c \u0111\u1ed1t s\u00e1ng \u0111\u00e8n, th\u00ec \u0103cquy b\u1eaft \u0111\u1ea7u ph\u00f3ng \u0111i\u1ec7n. B\u1ea5y gi\u1edd (l\u00fac ph\u00f3ng \u0111i\u1ec7n) trong \u0103cquy l\u1ea1i x\u1ea3y ra bi\u1ebfn \u0111\u1ed5i ng\u01b0\u1ee3c l\u1ea1i v\u1edbi l\u00fac n\u1ea1p \u0111i\u1ec7n. Tr\u00ean c\u1ef1c d\u01b0\u01a1ng, ch\u00ec sunfat bi\u1ebfn th\u00e0nh axit sunfuric, c\u00f2n tr\u00ean c\u1ef1c \u00e2m, kim lo\u1ea1i ch\u00ec x\u1ed1p bi\u1ebfn th\u00e0nh ch\u00ec sunfat. B\u1ea5y gi\u1edd n\u1ed3ng \u0111\u1ed9 axit sunfuric l\u1ea1i gi\u1ea3m. V\u00e0 m\u1eadt \u0111\u1ed9 dung d\u1ecbch s\u1ebd nh\u1ecf d\u1ea7n. N\u1ebfu m\u1eadt \u0111\u1ed9 axit gi\u1ea3m \u0111\u1ebfn b\u1eb1ng 1,18g\/cm3 th\u00ec kh\u00f4ng n\u00ean ti\u1ebfp t\u1ee5c cho \u0103cquy ph\u00f3ng \u0111i\u1ec7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi s\u1eed d\u1ee5ng \u0103cquy c\u1ea7n ch\u00fa \u00fd kh\u00f4ng n\u00ean n\u1ea1p \u0111i\u1ec7n qu\u00e1 m\u1ee9c (\u0111i\u1ec7n \u00e1p \u0103cquy v\u01b0\u1ee3t qu\u00e1 2,6V), c\u0169ng kh\u00f4ng \u0111\u01b0\u1ee3c cho ph\u00f3ng \u0111i\u1ec7n qu\u00e1 m\u1ee9c (kh\u00f4ng \u0111\u1ec3 \u0111i\u1ec7n \u00e1p th\u1ea5p h\u01a1n 1,18V), n\u1ebfu kh\u00f4ng, \u0103cquy s\u1ebd b\u1ecb h\u1ecfng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1eeb nh\u1eefng n\u0103m 80 c\u1ee7a th\u1ebf k\u1ef7 XX, nhi\u1ec1u ki\u1ec3u \u0103cquy m\u1edbi n\u1ed1i ti\u1ebfp nhau ra \u0111\u1eddi. C\u00f3 lo\u1ea1i \u1edf d\u1ea1ng ho\u00e0n to\u00e0n k\u00edn, kh\u00f4ng c\u1ea7n ki\u1ec3m tra, kh\u00f4ng b\u1ecb kh\u00f4 dung d\u1ecbch, an to\u00e0n, tin c\u1eady, ti\u1ec7n l\u1ee3i. Do s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a k\u1ef9 thu\u1eadt, c\u00f3 y\u00eau c\u1ea7u h\u1ebft s\u1ee9c b\u1ee9c thi\u1ebft l\u00e0 gi\u1ea3m nh\u1ecf th\u1ec3 t\u00edch c\u1ee7a \u0103cquy, nh\u1eb9 \u0111i, nh\u01b0ng l\u1ea1i c\u00f3 dung l\u01b0\u1ee3ng l\u1edbn, tu\u1ed5i th\u1ecd ph\u1ea3i d\u00e0i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ng\u00e0y nay tr\u00ean th\u1ecb tr\u01b0\u1eddng c\u00f3 b\u00e1n lo\u1ea1i \u1eafc quy ki\u1ec1m (c\u00f2n g\u1ecdi l\u00e0 \u0103cquy s\u1eaft &#8211; niken) \u0103cquy niken &#8211; cadimi. C\u00f3 nhi\u1ec1u lo\u1ea1i \u0103cquy m\u1edbi, t\u00ednh n\u0103ng lo\u1ea1i sau t\u1ed1t h\u01a1n lo\u1ea1i tr\u01b0\u1edbc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1eeb kho\u00e1: \u0102cquy; \u0103cquy ch\u00ec.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>C\u00f3 nh\u1eefng lo\u1ea1i pin \u0111i\u1ec7n c\u00f3 th\u1ec3 n\u1ea1p, ph\u00f3ng \u0111i\u1ec7n nhi\u1ec1u l\u1ea7n. Ng\u01b0\u1eddi ta g\u1ecdi c\u00e1c pin \u0111i\u1ec7n n\u00e0y l\u00e0 \u0103cquy hay c\u00f2n g\u1ecdi l\u00e0 pin \u0111i\u1ec7n t\u1eed th\u1ee9 c\u1ea5p. Nh\u01b0ng th\u1ef1c ra \u0103cquy c\u0169ng kh\u00f4ng th\u1ec3 tr\u1ef1c ti\u1ebfp t\u00edch tr\u1eef \u0111i\u1ec7n. V\u00ec \u0111i\u1ec7n l\u00e0 \u0111i\u1ec7n t\u1eed chuy\u1ec3n \u0111\u1ed9ng c\u00f3 \u0111\u1ecbnh h\u01b0\u1edbng. M\u00e0 l\u01b0\u1ee3ng l\u1edbn [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[8,15],"tags":[],"class_list":["post-7986","post","type-post","status-publish","format-standard","hentry","category-hoa-hoc","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7986","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=7986"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7986\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=7986"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=7986"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=7986"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}