As baterias de fosfato de ferro-l\u00edtio geralmente consistem em um eletrodo positivo, um eletrodo negativo, um separador, um eletr\u00f3lito, um inv\u00f3lucro e outros acess\u00f3rios.<\/p>\n
O material ativo do eletrodo positivo \u00e9 o fosfato de l\u00edtio e ferro do tipo olivina (LiFePO4), que s\u00f3 pode ser usado ap\u00f3s modifica\u00e7\u00f5es como revestimento de carbono e dopagem.<\/p>\n
Os materiais ativos do eletrodo negativo s\u00e3o materiais de grafite, como grafite natural e grafite artificial, bem como materiais de carbono, como carbono duro e carbono macio, que tamb\u00e9m exigem tratamento adequado antes de serem usados.<\/p>\n
O diafragma \u00e9 composto por uma ou duas camadas de polietileno (PE) e polipropileno (PP). \u00c9 frequentemente usado como um filme composto de camada \u00fanica ou multicamadas. Existem tamb\u00e9m maneiras de aumentar a pel\u00edcula de cer\u00e2mica inorg\u00e2nica na superf\u00edcie do filme. Isso melhora, at\u00e9 certo ponto, a seguran\u00e7a da bateria.<\/p>\n
O eletr\u00f3lito \u00e9 uma solu\u00e7\u00e3o de sal de l\u00edtio com carbonato de cadeia ou c\u00edclico como solvente, e aditivos especiais s\u00e3o adicionados a ele.<\/p>\n
A carca\u00e7a externa \u00e9 um recipiente que cont\u00e9m os outros componentes da bateria. \u00c9 feita principalmente de a\u00e7o inoxid\u00e1vel de alta resist\u00eancia e resistente \u00e0 corros\u00e3o, liga de alum\u00ednio, pl\u00e1sticos especiais e outros materiais. Existem tamb\u00e9m baterias com pel\u00edcula composta de alum\u00ednio e pl\u00e1stico como carca\u00e7a externa. No uso real, uma carca\u00e7a externa de alta resist\u00eancia \u00e9 necess\u00e1ria para prote\u00e7\u00e3o.<\/p>\n
Al\u00e9m disso, existem agentes condutores que aumentam a condutividade dos eletrodos positivos e negativos da bateria, o aglutinante que fixa o material ativo, a folha de cobre e a folha de alum\u00ednio que d\u00e3o suporte ao material em p\u00f3 e ao coletor de corrente e conectam o interior e o exterior da bateria e a pe\u00e7a de conex\u00e3o condutora, acess\u00f3rios auxiliares, como abas e postes.<\/p>","protected":false},"excerpt":{"rendered":"
Lithium iron phosphate batteries generally consist of a positive electrode, a negative electrode, a separator, an electrolyte, a casing and 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