Publication number: 20170288219
Abstract: A lithium-ion secondary battery includes a positive electrode, a negative electrode containing an active material, and an electrolytic solution, in which the active material contains, as constituent elements, Si, O, and at least one element M1 selected from Li, C, Mg, Al, Ca, Ti, Cr, Mn, Fe, Co, Ni, Cu, Ge, Zr, Mo, Ag, Sn, Ba, W, Ta, Na, and K, and the atomic ratio x (O/Si) of O to Si is 0.5?x?1.8.
Type:
Application
Filed:
June 16, 2017
Publication date:
October 5, 2017
Inventors:
Takakazu Hirose, Kenichi Kawase, Toshio Nishi, Isao Koizumi
Patent number: 9780368
Abstract: A lithium-ion secondary battery includes a positive electrode, a negative electrode containing an active material, and an electrolytic solution, in which the active material contains, as constituent elements, Si, O, and at least one element M1 selected from Li, C, Mg, Al, Ca, Ti, Cr, Mn, Fe, Co, Ni, Cu, Ge, Zr, Mo, Ag, Sn, Ba, W, Ta, Na, and K, and the atomic ratio x (O/Si) of O to Si is 0.5?x?1.8.
Type:
Grant
Filed:
June 19, 2012
Date of Patent:
October 3, 2017
Assignee:
Sony Corporation
Inventors:
Takakazu Hirose, Kenichi Kawase, Toshio Nishi, Isao Koizumi