Patent number: 10164248
Abstract: A negative electrode active material includes a core particle comprising silicon; and at least one metal element selected from the group consisting of: Ge, Sn, Ni, Mo, W, Ag, Pd, Cu, Bi, Fe, Co, Mn, Cr, V, Ga, B, Sb, In, Te, Cd, Rh, Ru, Nb, Ta, Re, Os, Ir, Pt, Pb and P. The negative electrode active material has an elemental composition that varies continuously from a center of the core particle to a surface of the core particle. A negative electrode, a battery, an electric vehicle, an electric storage apparatus, an electronic apparatus and a power storage system each include the negative electrode active material.
Type:
Grant
Filed:
February 9, 2015
Date of Patent:
December 25, 2018
Assignee:
Murata Manufacturing Co., Ltd.
Inventors:
Daisuke Ito, Syuuiti Takizawa, Kazutaka Habu
Publication number: 20150243972
Abstract: There is provided a negative electrode active material including a core particle comprising silicon; and at least one metal element selected from the group consisting of: Ge, Sn, Ni, Mo, W, Ag, Pd, Cu, Bi, Fe, Co, Mn, Cr, V, Ga, B, Sb, In, Te, Cd, Rh, Ru, Nb, Ta, Re, Os, Ir, Pt, Pb and P. The negative electrode active material has an elemental composition that varies continuously from a center of the core particle to a surface of the core particle. There are also provided a negative electrode, a battery, an electric vehicle, an electric storage apparatus, an electronic apparatus and a power storage system each including the negative electrode active material.
Type:
Application
Filed:
February 9, 2015
Publication date:
August 27, 2015
Inventors:
Daisuke ITO, Syuuiti TAKIZAWA, Kazutaka HABU