NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION BATTERY, AND NEGATIVE ELECTRODE FOR LITHIUM ION BATTERY USING THE SAME

PROBLEM TO BE SOLVED: To provide a negative electrode active material for a lithium ion battery capable of improving cycle characteristic.SOLUTION: The negative electrode active material contains Si-Sn-Fe-Cu base alloy, and has a system structure in which an area ratio of a Si phase against the enti...

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Bibliographische Detailangaben
Hauptverfasser: KIMURA YUTA, TAKO YUICHIRO, OZAKI KOZO
Format: Patent
Sprache:eng
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