Lithium-Eisenphosphat-Batterien geh\u00f6ren derzeit zu den am h\u00e4ufigsten verwendeten Batterien auf dem Markt. Diese Art von Batterie bietet hohe Sicherheit und eine lange Lebensdauer. Allerdings ist die Leistung von Lithium-Eisenphosphat-Batterien bei niedrigen Temperaturen etwas schlechter als bei Batterien anderer technischer Systeme.<\/p>\n
Niedrige Temperaturen wirken sich auf die positiven und negativen Elektroden, den Elektrolyten und das Bindemittel von Lithiumeisenphosphat aus. Die positive Lithiumeisenphosphatelektrode selbst weist eine relativ schlechte elektrische Leitf\u00e4higkeit auf und neigt bei niedrigen Temperaturen zur Polarisation, wodurch die Batteriekapazit\u00e4t verringert wird. Bei niedrigen Temperaturen verringert sich die Geschwindigkeit der Graphit-Lithium-Einlagerung, und metallisches Lithium kann sich an der Oberfl\u00e4che der negativen Elektrode absetzen. Wenn die Elektrode nach dem Laden nicht lange genug belassen wird, kann das metallische Lithium nicht wieder vollst\u00e4ndig in den Graphit eingebettet werden, und ein Teil des metallischen Lithiums verbleibt an der Oberfl\u00e4che der negativen Elektrode, wodurch die Wahrscheinlichkeit der Bildung von Lithiumdendriten erh\u00f6ht wird, was die Batteriesicherheit beeintr\u00e4chtigt. Bei niedrigen Temperaturen steigt die Viskosit\u00e4t des Elektrolyten und damit auch der Widerstand gegen die Migration von Lithiumionen. Dar\u00fcber hinaus ist der Klebstoff im Herstellungsprozess von Lithiumeisenphosphat ein sehr kritischer Faktor, und niedrige Temperaturen wirken sich ebenfalls stark auf die Leistung des Klebstoffs aus.<\/p>\n
Daher wird von der Verwendung von Lithium-Eisenphosphat-Batterien bei niedrigen Temperaturen abgeraten.<\/p>","protected":false},"excerpt":{"rendered":"
At present, lithium iron phosphate battery is one of the most widely used batteries on the market. This kind of 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