{"id":80533,"date":"2024-01-14T13:08:42","date_gmt":"2024-01-14T13:08:42","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/vantagens-e-desvantagens-das-baterias-metalicas-de-litio\/"},"modified":"2024-01-20T09:51:52","modified_gmt":"2024-01-20T09:51:52","slug":"vantagens-e-desvantagens-das-baterias-metalicas-de-litio","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/pt-br\/vantagens-e-desvantagens-das-baterias-metalicas-de-litio\/","title":{"rendered":"Vantagens e desvantagens das baterias met\u00e1licas de l\u00edtio"},"content":{"rendered":"<h2>Vantagens e Desvantagens das Baterias de L\u00edtio Met\u00e1lico<\/h2>\n<p>As baterias baseadas em l\u00edtio que utilizam l\u00edtio met\u00e1lico como \u00e2nodo s\u00e3o conhecidas como baterias de l\u00edtio met\u00e1lico. Essenciais na gama de c\u00e9lulas prim\u00e1rias, essas baterias se distinguem das secund\u00e1rias, como as de \u00edon de l\u00edtio e pol\u00edmero de l\u00edtio, que s\u00e3o recarreg\u00e1veis. As baterias de \u00edon de l\u00edtio, por exemplo, n\u00e3o cont\u00eam l\u00edtio met\u00e1lico.<\/p>\n<p>Uma caracter\u00edstica marcante das baterias prim\u00e1rias de l\u00edtio \u00e9 a baix\u00edssima taxa de autodescarga, o que confere a elas um longo tempo de prateleira, podendo chegar a 10 anos, e suportar temperaturas de at\u00e9 70 graus Celsius. No sistema padr\u00e3o IEC, a primeira letra identifica a composi\u00e7\u00e3o qu\u00edmica da bateria, sendo &#8220;C&#8221; para as baterias de l\u00edtio met\u00e1lico, como a CR2032.<\/p>\n<p>O l\u00edtio se destaca como material de eletrodo por sua baixa potencialidade e alta condutividade. Sua natureza macia e male\u00e1vel permite a extrus\u00e3o em folhas finas. As baterias de l\u00edtio podem ser classificadas de v\u00e1rias maneiras, uma delas \u00e9 pelo material do c\u00e1todo e tens\u00e3o. Por exemplo, o uso de um c\u00e1todo de dissulfeto de ferro resulta em uma bateria de 1,5 volts, comum em baterias AA de alto desempenho. A maioria das outras baterias de l\u00edtio opera a 3,0 volts, com c\u00e1todos de materiais s\u00f3lidos ou l\u00edquidos t\u00f3xicos.<\/p>\n<h2>Vantagens<\/h2>\n<p>As baterias prim\u00e1rias de l\u00edtio oferecem maior densidade energ\u00e9tica em compara\u00e7\u00e3o com as c\u00e9lulas secund\u00e1rias recarreg\u00e1veis. Com alta energia espec\u00edfica, longos per\u00edodos de armazenamento e prontid\u00e3o instant\u00e2nea, elas se destacam em aplica\u00e7\u00f5es de baixo consumo. Sua portabilidade, disponibilidade imediata ap\u00f3s longos per\u00edodos de armazenamento e f\u00e1cil acesso as tornam uma op\u00e7\u00e3o ambientalmente amig\u00e1vel.<\/p>\n<p>Estas baterias apresentam densidade energ\u00e9tica extremamente alta, o dobro das baterias alcalinas premium. Al\u00e9m disso, possuem alta tens\u00e3o celular, descarga constante, baixa autodescarga, longa vida \u00fatil (15 a 20 anos para o l\u00edtio cloreto de tionila) e uma ampla faixa de temperatura operacional (-60 \u00b0C a +85 \u00b0C para l\u00edtio-di\u00f3xido de enxofre), excelente durabilidade e tamanho reduzido.<\/p>\n<h2>Desvantagens<\/h2>\n<p>A principal desvantagem das baterias prim\u00e1rias \u00e9 a sua natureza n\u00e3o recarreg\u00e1vel. Al\u00e9m disso, possuem baixa taxa de C-rate, mesmo as vers\u00f5es de alta corrente s\u00e3o consideradas baixas em compara\u00e7\u00e3o com as baterias recarreg\u00e1veis. Elas tamb\u00e9m s\u00e3o menos amig\u00e1veis ao meio ambiente do que as recarreg\u00e1veis, pois seu uso resulta em uma grande quantidade de res\u00edduos a serem reciclados. Para baterias de grande porte, as prim\u00e1rias geralmente n\u00e3o s\u00e3o custo-efetivas.<\/p>\n<p>Um dos maiores inconvenientes das baterias de l\u00edtio met\u00e1lico \u00e9 o seu pre\u00e7o. Em compara\u00e7\u00e3o com outras tecnologias, o custo pode ser um fator limitante para a sua ado\u00e7\u00e3o em larga escala.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2022\/09\/Advantages-and-Disadvantages-lithium-metal-batteries.png\" alt=\"\" \/><\/p>\n<div style=\"text-align: center; font-size: 20px;\">\n    <a href=\"https:\/\/www.electricity-magnetism.org\/electric-battery\/advantages-and-disadvantages-of-lithium-metal-batteries\/\">Original Article<\/a>\n<\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>As baterias de metal de l\u00edtio t\u00eam uma densidade de energia muito alta, o dobro das baterias alcalinas premium. Eles tamb\u00e9m possuem alta tens\u00e3o de c\u00e9lula, caracter\u00edstica de descarga plana, baixa autodescarga e vida \u00fatil muito longa.<\/p>\n","protected":false},"author":1,"featured_media":4104,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[14],"tags":[],"class_list":["post-80533","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nao-categorizado","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Vantagens e desvantagens das baterias met\u00e1licas de l\u00edtio<\/title>\n<meta name=\"description\" content=\"As baterias de metal de l\u00edtio t\u00eam uma densidade de energia muito alta, o dobro das baterias alcalinas premium. 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