{"id":80531,"date":"2024-01-14T13:08:30","date_gmt":"2024-01-14T13:08:30","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/celula-de-ar-de-litio-composicao-e-caracteristicas\/"},"modified":"2024-01-20T09:51:52","modified_gmt":"2024-01-20T09:51:52","slug":"celula-de-ar-de-litio-composicao-e-caracteristicas","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/pt-br\/celula-de-ar-de-litio-composicao-e-caracteristicas\/","title":{"rendered":"C\u00e9lula de ar de l\u00edtio | Composi\u00e7\u00e3o e Caracter\u00edsticas"},"content":{"rendered":"

C\u00e9lulas de L\u00edtio-Ar: Uma Vis\u00e3o Geral<\/h2>\n

As c\u00e9lulas de l\u00edtio-ar representam uma categoria fascinante no universo das baterias, distinguidas pela sua alta densidade energ\u00e9tica te\u00f3rica e design \u00fanico. Estas c\u00e9lulas s\u00e3o parte da fam\u00edlia maior das baterias de metal-l\u00edtio, que s\u00e3o prim\u00e1rias, ou seja, n\u00e3o recarreg\u00e1veis. \u00c9 crucial diferenciar as baterias prim\u00e1rias de l\u00edtio das secund\u00e1rias de \u00edon de l\u00edtio ou pol\u00edmero de l\u00edtio, que s\u00e3o recarreg\u00e1veis e n\u00e3o cont\u00eam l\u00edtio met\u00e1lico.<\/p>\n

Funcionamento da C\u00e9lula de L\u00edtio-Ar<\/h2>\n

A c\u00e9lula de l\u00edtio-ar opera atrav\u00e9s da oxida\u00e7\u00e3o do l\u00edtio no \u00e2nodo e da redu\u00e7\u00e3o do oxig\u00eanio no c\u00e1todo, gerando fluxo de corrente. Com uma configura\u00e7\u00e3o semelhante \u00e0s c\u00e9lulas de zinco-ar, seu \u00e2nodo \u00e9 feito de uma folha de l\u00edtio met\u00e1lico prensada em um coletor de corrente de malha de n\u00edquel. Este arranjo est\u00e1 acoplado eletroquimicamente a uma fonte ilimitada de oxig\u00eanio atmosf\u00e9rico atrav\u00e9s de um c\u00e1todo de ar.<\/p>\n

Tipos de Baterias de Metal-L\u00edtio<\/h2>\n

V\u00e1rios tipos de c\u00e9lulas de metal-l\u00edtio s\u00e3o comumente usados, cada um com caracter\u00edsticas distintas:<\/p>\n

C\u00e9lula de Di\u00f3xido de Mangan\u00eas-L\u00edtio<\/h3>\n

Esta c\u00e9lula utiliza folha de l\u00edtio como \u00e2nodo e di\u00f3xido de mangan\u00eas como c\u00e1todo. O eletr\u00f3lito \u00e9 uma folha separadora impregnada com sais eletrol\u00edticos, proporcionando uma voltagem total de 3 volts. \u00c9 comumente utilizada em c\u00e9lulas de bot\u00e3o, como a CR2032.<\/p>\n

C\u00e9lula de Disulfeto de Ferro e L\u00edtio<\/h3>\n

As baterias cil\u00edndricas de disulfeto de ferro e l\u00edtio (LiFeS2<\/sub>) empregam l\u00edtio no \u00e2nodo e disulfeto de ferro no c\u00e1todo, com um sal de l\u00edtio em uma mistura de solventes org\u00e2nicos como eletr\u00f3lito. Com uma voltagem de 1,5 volts, s\u00e3o projetadas para substituir baterias de zinco-carbono ou alcalinas e s\u00e3o adaptadas para aplica\u00e7\u00f5es de alta corrente.<\/p>\n

C\u00e9lula de Cloreto de Tionila-L\u00edtio<\/h3>\n

Esta c\u00e9lula possui a mais alta densidade energ\u00e9tica entre todas as c\u00e9lulas de l\u00edtio, com uma vida \u00fatil de 15 a 20 anos.<\/p>\n

Considera\u00e7\u00f5es Finais<\/h2>\n

As c\u00e9lulas de l\u00edtio-ar e outros tipos de baterias de metal-l\u00edtio oferecem solu\u00e7\u00f5es inovadoras para diversas aplica\u00e7\u00f5es, gra\u00e7as \u00e0s suas caracter\u00edsticas \u00fanicas, como alta densidade energ\u00e9tica e longa vida \u00fatil. No entanto, \u00e9 fundamental compreender suas diferen\u00e7as em rela\u00e7\u00e3o \u00e0s baterias recarreg\u00e1veis de \u00edon de l\u00edtio ou pol\u00edmero de l\u00edtio, para garantir sua utiliza\u00e7\u00e3o adequada e segura.<\/p>\n

\"\"<\/p>\n

\n Original Article<\/a>\n<\/div>\n

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

A bateria de l\u00edtio-ar \u00e9 uma c\u00e9lula eletroqu\u00edmica metal-ar ou qu\u00edmica de bateria que usa a oxida\u00e7\u00e3o do l\u00edtio no \u00e2nodo e a redu\u00e7\u00e3o do oxig\u00eanio no c\u00e1todo para induzir um fluxo de corrente.<\/p>\n","protected":false},"author":1,"featured_media":4149,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[14],"tags":[],"class_list":["post-80531","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":"\nC\u00e9lula de ar de l\u00edtio | Composi\u00e7\u00e3o e Caracter\u00edsticas<\/title>\n<meta name=\"description\" content=\"A bateria de l\u00edtio-ar \u00e9 uma c\u00e9lula eletroqu\u00edmica metal-ar ou qu\u00edmica de bateria que usa a oxida\u00e7\u00e3o do l\u00edtio no \u00e2nodo e a redu\u00e7\u00e3o do oxig\u00eanio no c\u00e1todo para induzir um fluxo de corrente.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.electricity-magnetism.org\/pt-br\/celula-de-ar-de-litio-composicao-e-caracteristicas\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C\u00e9lula de ar de l\u00edtio | Composi\u00e7\u00e3o e Caracter\u00edsticas\" \/>\n<meta property=\"og:description\" content=\"A bateria de l\u00edtio-ar \u00e9 uma c\u00e9lula eletroqu\u00edmica metal-ar ou qu\u00edmica de bateria que usa a oxida\u00e7\u00e3o do l\u00edtio no \u00e2nodo e a redu\u00e7\u00e3o do oxig\u00eanio no c\u00e1todo para induzir um fluxo de corrente.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.electricity-magnetism.org\/pt-br\/celula-de-ar-de-litio-composicao-e-caracteristicas\/\" \/>\n<meta property=\"og:site_name\" content=\"Electricity - 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