ACTIVE MATERIAL BASED ON NCM FOR POSITIVE ELECTRODE, POSITIVE ELECTRODE, AND BATTERY

To provide an active material based on NCM for a positive electrode which can exhibit a high heat stability and an improved cycle characteristic.SOLUTION: In the active material based on NCM for a positive electrode, the ratio c/a of the length of an a-axis to the length of a c-axis in a crystal str...

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Bibliographische Detailangaben
Hauptverfasser:	TABUSE AKIHIRO, WATANABE YUKI
Format:	Patent
Sprache:	eng ; jpn
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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Zusammenfassung:	To provide an active material based on NCM for a positive electrode which can exhibit a high heat stability and an improved cycle characteristic.SOLUTION: In the active material based on NCM for a positive electrode, the ratio c/a of the length of an a-axis to the length of a c-axis in a crystal structure obtained from an X-ray diffraction pattern analysis result is 4.9625 at largest.SELECTED DRAWING: Figure 3 【課題】高い熱安定性と共に向上したサイクル特性を発揮することができる正極用ＮＣＭ系活物質を提供すること。【解決手段】Ｘ線回折パターン解析結果から得られる結晶構造におけるｃ軸の長さに対するａ軸の長さの比ｃ／ａが４．９６２５以下である正極用ＮＣＭ系活物質。【選択図】図３