Disclosed is a nonaqueous electrolyte secondary battery having good charge/discharge cycle characteristics. Specifically disclosed is a nonaqueous electrolyte secondary battery comprising a negative electrode containing silicon as negative electrode active material, a positive electrode and a nonaqueous electrolyte. The average particle diameter of the negative electrode active material is not less than 5 µm and not more than 20 µm, and the weight of the negative electrode active material is not less than 10% by weight of the weight of the nonaqueous electrolyte.
申请公布号
WO2006103829(A1)
申请公布日期
2006.10.05
申请号
WO2006JP301843
申请日期
2006.02.03
申请人
SANYO ELECTRIC CO., LTD.;ITAYA, MASAHARU;FUKUI, ATSUSHI;SAWA, SHOUICHIROU;KUSUMOTO, YASUYUKI;FUJIMOTO, MASAHISA