Nonaqueous electrolyte secondary battery

A nonaqueous electrolyte secondary battery uses a lithium manganese composite oxide as its positive electrode active material, and is improved in cycle life at a high temperature, and also improved in capacity retention properties. A negative electrode active material of the battery is capable of do...

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Bibliographische Detailangaben
Hauptverfasser:	WATANABE MIKIO, KAMBE CHIKA, NUMATA TATSUJI
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	A nonaqueous electrolyte secondary battery uses a lithium manganese composite oxide as its positive electrode active material, and is improved in cycle life at a high temperature, and also improved in capacity retention properties. A negative electrode active material of the battery is capable of doping and undoping a lithium ion. The buttery contains in its inside at least one of: an oxide of at least one element selected from the group consisting of La, Sr, Nd, and Sm; a carbonate of at least one element selected from the group consisting of La, Sr, Nd, and Sm; and, a composite oxide of manganese combined with at least one element selected from the group consisting of La, Sr, Nd, and Sm. The battery uses an electrolyte, the electrolyte containing LiPF6 or LiBF4 as its supporting salt.