Actualmente, la bater\u00eda de fosfato de hierro y litio es una de las m\u00e1s utilizadas en el mercado. Este tipo de bater\u00eda ofrece alta seguridad y una larga vida \u00fatil. Sin embargo, su rendimiento a bajas temperaturas es ligeramente inferior al de las bater\u00edas de otros sistemas t\u00e9cnicos.<\/p>\n
La baja temperatura tiene un impacto en los electrodos positivo y negativo, el electrolito y el aglutinante del fosfato de hierro y litio. El electrodo positivo del fosfato de hierro y litio en s\u00ed tiene una conductividad electr\u00f3nica relativamente pobre y es propenso a la polarizaci\u00f3n en entornos de baja temperatura, lo que reduce la capacidad de la bater\u00eda; afectado por la baja temperatura, la velocidad de inserci\u00f3n del grafito de litio se reduce y es probable que el litio met\u00e1lico precipite en la superficie del electrodo negativo. Si se deja durante un tiempo insuficiente despu\u00e9s de la carga, col\u00f3quelo en Cuando se usa, el litio met\u00e1lico no puede incrustarse completamente de nuevo en el grafito, y parte del litio met\u00e1lico contin\u00faa existiendo en la superficie del electrodo negativo, que es muy probable que forme dendritas de litio, lo que afecta la seguridad de la bater\u00eda; a bajas temperaturas, la viscosidad del electrolito aumentar\u00e1 y la resistencia a la migraci\u00f3n de iones de litio tambi\u00e9n aumentar\u00e1. Adem\u00e1s, en el proceso de producci\u00f3n de fosfato de hierro y litio, el adhesivo tambi\u00e9n es un factor muy cr\u00edtico, y la baja temperatura tambi\u00e9n tendr\u00e1 un mayor impacto en el rendimiento del adhesivo.<\/p>\n
Por lo tanto, no se recomienda utilizar bater\u00edas de fosfato de hierro y litio a bajas temperaturas.<\/p>","protected":false},"excerpt":{"rendered":"
At present, lithium iron phosphate battery is one of the most widely used batteries on the market. 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