NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY

NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY

To provide a negative electrode for a lithium secondary battery capable of improving cycle characteristics of the lithium secondary battery and a lithium secondary battery using the same.SOLUTION: A negative electrode for a lithium secondary battery includes aluminum and has a thickness of 200 μm or...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MATSUMOTO SHINGO, KUMAGAI TOSHIAKI, MATSUO SACHIFUMI
Format: Patent
Sprache:eng ; jpn
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:To provide a negative electrode for a lithium secondary battery capable of improving cycle characteristics of the lithium secondary battery and a lithium secondary battery using the same.SOLUTION: A negative electrode for a lithium secondary battery includes aluminum and has a thickness of 200 μm or less, and in the X-ray diffraction measurement of the negative electrode surface of the negative electrode for the lithium secondary battery using CuKα as a radiation source, the crystallite size calculated from the half-value width of the diffraction peak of the aluminum (311) plane is less than 1000 Å.SELECTED DRAWING: None 【課題】リチウム二次電池のサイクル特性を向上させることができるリチウム二次電池用負極及びこれを用いたリチウム二次電池の提供。【解決手段】アルミニウムを含み、厚さが２００μｍ以下のリチウム二次電池用負極であって、ＣｕＫαを線源とした前記リチウム二次電池用負極の負極面のＸ線回折測定において、アルミニウム（３１１）面の回折ピークの半値幅から算出する結晶子サイズが１０００Å未満である、リチウム二次電池用負極。【選択図】なし