{"id":80552,"date":"2024-01-14T13:09:32","date_gmt":"2024-01-14T13:09:32","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/bateria-agm-caracteristicas-aplicacoes-pros-e-contras\/"},"modified":"2024-01-20T09:52:42","modified_gmt":"2024-01-20T09:52:42","slug":"bateria-agm-caracteristicas-aplicacoes-pros-e-contras","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/pt-br\/bateria-agm-caracteristicas-aplicacoes-pros-e-contras\/","title":{"rendered":"Bateria AGM | Caracter\u00edsticas, aplica\u00e7\u00f5es, pr\u00f3s e contras"},"content":{"rendered":"<h2>O Que S\u00e3o Baterias AGM e Como Funcionam<\/h2>\n<p>As baterias de Absorvent Glass Mat (AGM) s\u00e3o um tipo especial de bateria de chumbo-\u00e1cido regulada por v\u00e1lvula (VRLA). Distinguem-se por possu\u00edrem pequenos canais de g\u00e1s no eletr\u00f3lito e uma malha de fibra de vidro entre as placas da bateria. Este design inovador cont\u00e9m o eletr\u00f3lito e separa as placas, aumentando a efici\u00eancia e a vida \u00fatil da bateria.<\/p>\n<h2>Reciclagem de Oxig\u00eanio e Ciclo Fechado de Oxig\u00eanio<\/h2>\n<p>Uma caracter\u00edstica not\u00e1vel das baterias AGM \u00e9 o processo de reciclagem de oxig\u00eanio, conhecido como ciclo fechado de oxig\u00eanio (COC). Durante o sobrecarregamento ou carregamento flutuante, o oxig\u00eanio gerado no eletrodo positivo \u00e9 transportado para o eletrodo negativo, onde \u00e9 reutilizado. Isso reduz significativamente a perda de \u00e1gua, pois a \u00e1gua consumida em rea\u00e7\u00f5es laterais durante o carregamento \u00e9 compensada pela regenera\u00e7\u00e3o da rea\u00e7\u00e3o de hidrog\u00eanio e oxig\u00eanio.<\/p>\n<h2>Vantagens e Manuten\u00e7\u00e3o<\/h2>\n<p>As baterias AGM s\u00e3o mais resistentes \u00e0 auto-descarga do que as baterias convencionais em uma ampla gama de temperaturas, tornando-as praticamente livres de manuten\u00e7\u00e3o. Para maximizar sua vida \u00fatil, \u00e9 importante seguir as especifica\u00e7\u00f5es de carregamento do fabricante, utilizando um carregador com regula\u00e7\u00e3o de voltagem.<\/p>\n<h2>Outros Tipos de Baterias de Chumbo-\u00c1cido<\/h2>\n<p>Existem dois grupos principais de baterias de chumbo-\u00e1cido:<\/p>\n<ul>\n<li><b>Bateria VLA (ventilada):<\/b> Este tipo \u00e9 submerso em excesso de eletr\u00f3lito l\u00edquido, sendo dividido em tr\u00eas grupos: tracion\u00e1rias ou de ciclo profundo, baterias SLI (arranque, ilumina\u00e7\u00e3o e igni\u00e7\u00e3o) e baterias VRLA.<\/li>\n<li><b>Bateria VRLA (regulada por v\u00e1lvula):<\/b> Neste grupo, encontram-se as baterias AGM e as baterias de gel, onde o eletr\u00f3lito \u00e9 imobilizado em um separador absorvente ou em gel.<\/li>\n<\/ul>\n<h2>Funcionamento Qu\u00edmico das Baterias de Chumbo-\u00c1cido<\/h2>\n<p>O princ\u00edpio de funcionamento de uma bateria de chumbo-\u00e1cido envolve processos qu\u00edmicos durante a carga e descarga. Na descarga, o chumbo \u00e9 oxidado com o eletr\u00f3lito para formar sulfato de chumbo, liberando el\u00e9trons. O sulfato de chumbo tamb\u00e9m se forma no c\u00e1todo, onde ocorre a redu\u00e7\u00e3o do \u00f3xido de chumbo. Durante o carregamento, os processos ocorrem em dire\u00e7\u00e3o oposta, oxidando o sulfato de chumbo formado na descarga para chumbo e \u00f3xido de chumbo.<\/p>\n<p>Se o sulfato de chumbo for completamente consumido e o processo de carregamento n\u00e3o for interrompido, inicia-se a eletr\u00f3lise do eletr\u00f3lito. O sobrecarregamento gera g\u00e1s oxig\u00eanio e hidrog\u00eanio por eletr\u00f3lise da \u00e1gua. Nas baterias seladas, existem catalisadores onde o g\u00e1s oxihidrog\u00eanio pode recombinar em \u00e1gua. A tens\u00e3o total da rea\u00e7\u00e3o redox \u00e9: E<sup>0<\/sup> = 1.68V &#8211; (-0.36V) = 2.04V.<\/p>\n<h2>Conclus\u00e3o<\/h2>\n<p>As baterias AGM s\u00e3o uma solu\u00e7\u00e3o eficiente e de baixa manuten\u00e7\u00e3o para uma variedade de aplica\u00e7\u00f5es, gra\u00e7as \u00e0 sua maior densidade de energia e pot\u00eancia em compara\u00e7\u00e3o com as baterias de chumbo-\u00e1cido tradicionais. Seu design inovador e processo de reciclagem de oxig\u00eanio oferecem uma combina\u00e7\u00e3o \u00fanica de efici\u00eancia, durabilidade e confiabilidade.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2022\/09\/AGM-battery-characteristics.png\" alt=\"\" \/><\/p>\n<div style=\"text-align: center; font-size: 20px;\">\n    <a href=\"https:\/\/www.electricity-magnetism.org\/electric-battery\/agm-battery\/\">Original Article<\/a>\n<\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>As baterias AGM apresentam malha de fibra de vidro entre as placas da bateria que serve para conter o eletr\u00f3lito e separar as placas.<\/p>\n","protected":false},"author":1,"featured_media":4362,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[14],"tags":[],"class_list":["post-80552","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 - 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