Actualmente, la bater\u00eda de fosfato de hierro y litio es una de las m\u00e1s utilizadas. Este tipo de bater\u00eda ofrece alta seguridad y una larga vida \u00fatil. Sin embargo, presenta una desventaja importante: su rendimiento a bajas temperaturas es superior al de otros sistemas t\u00e9cnicos. La bater\u00eda es ligeramente inferior.<\/p>\n
La baja temperatura tiene un impacto en los electrodos positivos y negativos, el electrolito y el aglutinante de fosfato de hierro y litio.
\nEl electrodo positivo de fosfato de hierro y litio 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;<\/p>\n
Debido a las bajas temperaturas, la velocidad de inserci\u00f3n del litio en el grafito se reduce y es probable que el litio met\u00e1lico se precipite en la superficie del electrodo negativo. Si el litio met\u00e1lico no se puede incrustar completamente en el grafito si se deja durante un tiempo insuficiente despu\u00e9s de la carga, es muy probable que se forme en la superficie del electrodo negativo. Las dendritas de litio afectan la seguridad de la bater\u00eda.<\/p>\n
A bajas temperaturas, la viscosidad del electrolito aumenta, al igual que la resistencia a la migraci\u00f3n de iones de litio. Adem\u00e1s, en el proceso de producci\u00f3n de fosfato de hierro y litio, el adhesivo es un factor crucial, y las bajas temperaturas tambi\u00e9n afectan su rendimiento. Esto tiene un mayor impacto. Por lo tanto, recomendamos un rango de temperatura de -20 \u00b0C a +75 \u00b0C para bater\u00edas de fosfato de hierro y litio.<\/p>","protected":false},"excerpt":{"rendered":"
At present, lithium iron phosphate battery is one of the most used batteries. 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