{"id":4894,"date":"2016-04-28T07:08:14","date_gmt":"2016-04-28T00:08:14","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=4894"},"modified":"2017-10-02T14:36:03","modified_gmt":"2017-10-02T07:36:03","slug":"dai-hoc-california-tao-ra-loai-pin-co-tuoi-tho-gap-400-lan-so-voi-hien-tai","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/dai-hoc-california-tao-ra-loai-pin-co-tuoi-tho-gap-400-lan-so-voi-hien-tai\/","title":{"rendered":"\u0110\u1ea1i h\u1ecdc California t\u1ea1o ra lo\u1ea1i pin c\u00f3 tu\u1ed5i th\u1ecd g\u1ea5p 400 l\u1ea7n so v\u1edbi hi\u1ec7n t\u1ea1i"},"content":{"rendered":"<p><strong>C\u00e1c nh\u00e0 khoa h\u1ecdc nghi\u00ean c\u1ee9u v\u1eadt li\u1ec7u pin t\u1ea1i \u0110\u1ea1i h\u1ecdc California (M\u1ef9) \u0111\u00e3 ph\u00e1t minh ra m\u1ed9t s\u1ee3i d\u00e2y nano \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 t\u1ea1o ra lo\u1ea1i pin c\u00f3 th\u1ec3 s\u1ea1c l\u1ea1i h\u00e0ng tr\u0103m h\u00e0ng ng\u00e0n l\u1ea7n, kh\u1eafc ph\u1ee5c m\u1ed9t trong nh\u1eefng h\u1ea1n ch\u1ebf l\u1edbn nh\u1ea5t c\u1ee7a pin k\u1ec3 t\u1eeb khi n\u00f3 \u0111\u01b0\u1ee3c ra \u0111\u1eddi \u0111\u1ebfn nay. B\u1ea5t k\u1ec3 m\u1ed9t ti\u1ec7n \u00edch c\u00f4ng ngh\u1ec7 n\u00e0o \u0111\u1ec1u ho\u1ea1t \u0111\u1ed9ng nh\u1edd pin. Tuy nhi\u00ean, ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a pin d\u01b0\u1eddng nh\u01b0 kh\u00f4ng ph\u00e1t tri\u1ec3n k\u1ecbp, so v\u1edbi nh\u1eefng thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed n\u00e0y. Ph\u00e1t minh n\u00eau tr\u00ean c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh, m\u00e1y t\u00ednh b\u1ea3ng, xe h\u01a1i, m\u00e1y vi t\u00ednh hay th\u1eadm ch\u00ed l\u00e0 t\u00e0u v\u0169 tr\u1ee5, gi\u00fap k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a thi\u1ebft b\u1ecb, hi\u1ec7n b\u1ecb gi\u1edbi h\u1ea1n b\u1edfi hi\u1ec7n t\u01b0\u1ee3ng \u2018chai\u2019 pin ch\u1ec9 sau m\u1ed9t v\u00e0i n\u0103m s\u1eed d\u1ee5ng.<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-5450\" src=\"http:\/\/ttud.com.vn\/wp-content\/uploads\/2016\/04\/28042016105713-duytran3676954_cv_pin_tinhte_01-001.jpg\" alt=\"\" width=\"282\" height=\"187\" \/><\/p>\n<p>\u0110\u1ec3 l\u00e0m \u0111\u01b0\u1ee3c \u0111i\u1ec1u n\u00e0y, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 t\u1ea1o ra pin t\u1eeb c\u00e1c d\u00e2y nano v\u00e0ng b\u1ecdc trong m\u1ed9t l\u1edbp v\u1ecf dioxide mangan, sau \u0111\u00f3 \u0111\u1eb7t n\u00f3 trong m\u1ed9t ch\u1ea5t \u0111i\u1ec7n ph\u00e2n \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng lo\u1ea1i v\u1eadt li\u1ec7u c\u00f3 t\u00ednh ch\u1ea5t gi\u1ed1ng nh\u01b0 gel Plexiglass. Vi\u1ec7c s\u1eed d\u1ee5ng d\u00e2y nano v\u1ed1n m\u1ecfng h\u01a1n h\u00e0ng ng\u00e0n l\u1ea7n so v\u1edbi s\u1ee3i t\u00f3c ng\u01b0\u1eddi, c\u00f3 t\u00ednh d\u1eabn cao v\u00e0 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t l\u1edbn trong pin, kh\u00f4ng ph\u1ea3i l\u00e0 \u00fd t\u01b0\u1edfng ho\u00e0n to\u00e0n m\u1edbi. Pin Lithium-ion, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ea7u h\u1ebft c\u00e1c smartphone, c\u0169ng \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh t\u1eeb c\u00e1c d\u00e2y nano, nh\u01b0ng ch\u00fang th\u01b0\u1eddng r\u1ea5t m\u1ecfng manh v\u00e0 d\u1ec5 b\u1ecb h\u1ecfng sau c\u00e1c chu k\u1ef3 s\u1ea1c. B\u1eb1ng c\u00e1ch b\u1ecdc d\u00e2y nano trong c\u1ea3 l\u1edbp v\u1ecf v\u00e0 gel, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u M\u1ef9 \u0111\u00e3 c\u00f3 th\u1ec3 ng\u0103n ch\u1eb7n c\u00e1c h\u01b0 h\u1ea1i c\u1ee7a d\u00e2y trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng.<\/p>\n<p>Su\u1ed1t 3 th\u00e1ng th\u1eed nghi\u1ec7m, 200.000 chu k\u1ef3 s\u1ea1c \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n, v\u00e0 c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u kh\u00f4ng nh\u1eadn th\u1ea5y b\u1ea5t k\u1ef3 s\u1ef1 suy gi\u1ea3m kh\u1ea3 n\u0103ng n\u1ea1p \u0111i\u1ec7n ho\u1eb7c thi\u1ec7t h\u1ea1i n\u00e0o xu\u1ea5t hi\u1ec7n b\u00ean trong pin. \u0110\u1ec3 so s\u00e1nh, c\u00e1c m\u1eabu pin \u0111ang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng hi\u1ec7n nay c\u00f3 tu\u1ed5i th\u1ecd t\u1ed1i \u0111a sau 7.000 chu k\u1ef3 s\u1ea1c. \u201cC\u00e1c \u0111i\u1ec7n c\u1ef1c gi\u1eef \u0111\u01b0\u1ee3c h\u00ecnh d\u1ea1ng c\u1ee7a n\u00f3 t\u1ed1t h\u01a1n nhi\u1ec1u, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn \u0111\u00e1ng tin c\u1eady h\u01a1n\u201d, Mya Le Thai, tr\u01b0\u1edfng nh\u00f3m nghi\u00ean c\u1ee9u v\u00e0 l\u00e0 \u1ee9ng c\u1eed vi\u00ean ti\u1ebfn s\u0129 t\u1ea1i \u0110\u1ea1i h\u1ecdc California, Irvine cho bi\u1ebft. \u201cNghi\u00ean c\u1ee9u n\u00e0y ch\u1ee9ng minh r\u1eb1ng m\u1ed9t lo\u1ea1i pin s\u1eed d\u1ee5ng \u0111i\u1ec7n c\u1ef1c d\u00e2y nano c\u00f3 th\u1ec3 c\u00f3 d\u00f2ng \u0111\u1eddi d\u00e0i h\u01a1n\u201d.<\/p>\n<p>Hi\u1ec7n nay, c\u00f3 m\u1ed9t v\u00e0i c\u00e1ch gi\u00fap k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u00e1c lo\u1ea1i pin lithium-ion. \u0110\u1ed1i v\u1edbi \u0111i\u1ec7n tho\u1ea1i, n\u00ean \u0111\u1ec3 n\u00f3 c\u00e1ch xa nh\u1eefng n\u01a1i c\u00f3 nhi\u1ec7t \u0111\u1ed9 n\u00f3ng (tr\u00ean 30 \u0111\u1ed9 C), v\u00e0 c\u1ed1 g\u1eafng s\u1ea1c khi dung l\u01b0\u1ee3ng pin c\u00f2n 50%, thay v\u00ec ch\u1edd \u0111\u1ee3i cho \u0111\u1ebfn khi c\u1ea1n ki\u1ec7t.<\/p>\n<p style=\"text-align: right;\"><em>Tham kh\u1ea3o: Phys.org\u200b<\/em><\/p>\n<p style=\"text-align: right;\"><em>Ngu\u1ed3n tinhte.vn<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00e1c nh\u00e0 khoa h\u1ecdc nghi\u00ean c\u1ee9u v\u1eadt li\u1ec7u pin t\u1ea1i \u0110\u1ea1i h\u1ecdc California (M\u1ef9) \u0111\u00e3 ph\u00e1t minh ra m\u1ed9t s\u1ee3i d\u00e2y nano \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 t\u1ea1o ra lo\u1ea1i pin c\u00f3 th\u1ec3 s\u1ea1c l\u1ea1i h\u00e0ng tr\u0103m h\u00e0ng ng\u00e0n l\u1ea7n, kh\u1eafc ph\u1ee5c m\u1ed9t trong nh\u1eefng h\u1ea1n ch\u1ebf l\u1edbn nh\u1ea5t c\u1ee7a pin k\u1ec3 t\u1eeb khi n\u00f3 \u0111\u01b0\u1ee3c ra [&hellip;]<\/p>\n","protected":false},"author":17,"featured_media":5450,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-4894","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/4894","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=4894"}],"version-history":[{"count":2,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/4894\/revisions"}],"predecessor-version":[{"id":5451,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/4894\/revisions\/5451"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/5450"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=4894"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=4894"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=4894"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}