NEGATIVE ELECTRODE MATERIAL FOR SECONDARY BATTERY

To provide a negative electrode material for a secondary battery.SOLUTION: The negative electrode material for a secondary battery contains: a matrix containing a silicon oxide, a complex oxide of silicon and one or more doping elements selected from the group consisting of alkali metals, alkaline e...

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Bibliographische Detailangaben
Hauptverfasser:	LEE JAE WOO, CHOE SUN HO, PARK JIN GEE, CHEON JUNG HOON, DU SICHEN, KIM SEUNG SU
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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Zusammenfassung:	To provide a negative electrode material for a secondary battery.SOLUTION: The negative electrode material for a secondary battery contains: a matrix containing a silicon oxide, a complex oxide of silicon and one or more doping elements selected from the group consisting of alkali metals, alkaline earth metals and post-transition metals, or a mixture thereof; and silicon nanoparticles having residual compressive stress.SELECTED DRAWING: Figure 2 【課題】本発明は、二次電池用負極材に関する。【解決手段】本発明による二次電池用負極材は、シリコン酸化物、アルカリ金属とアルカリ土類金属およびポスト遷移金属からなる群から選択される一つ以上のドーピング元素とシリコンとの複合酸化物、またはこれらの混合物を含有するマトリックスと、前記マトリックスに分散含浸され、残留圧縮応力（ｒｅｓｉｄｕａｌｃｏｍｐｒｅｓｓｉｖｅｓｔｒｅｓｓ）を有するシリコンナノ粒子とを含む。【選択図】図２