发明名称 |
NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES |
摘要 |
A nonaqueous electrolyte secondary battery of the invention includes a positive electrode, a negative electrode and a nonaqueous electrolyte, the positive electrode including lithium transition metal oxide particles as a positive electrode active material, the lithium transition metal oxide particles containing nickel as a main transition metal component and being such that a first compound containing at least one element Ma selected from the group consisting of Group IV elements and Group V elements is sintered to a portion of the surface of the lithium transition metal oxide particles, the first compound having a composition different from that of the lithium transition metal oxide particles, the positive electrode further including a second compound containing at least one element Mb selected from the group consisting of Group VI elements, the second compound having a composition different from that of the lithium transition metal oxide particles. |
申请公布号 |
US2015221933(A1) |
申请公布日期 |
2015.08.06 |
申请号 |
US201314424304 |
申请日期 |
2013.08.29 |
申请人 |
SANYO Electric Co., Ltd. |
发明人 |
Mizawa Atsushi;Niina Fumiharu;Nishide Daisuke;Fujimoto Hiroyuki;Kida Yoshinori |
分类号 |
H01M4/36;H01M4/525;H01M4/131 |
主分类号 |
H01M4/36 |
代理机构 |
|
代理人 |
|
主权项 |
1. A nonaqueous electrolyte secondary battery comprising a positive electrode, a negative electrode and a nonaqueous electrolyte,
the positive electrode including lithium transition metal oxide particles as a positive electrode active material, the lithium transition metal oxide particles containing nickel as a main transition metal component, the lithium transition metal oxide particles being such that a first compound containing at least one element Ma selected from the group consisting of Group IV elements and Group V elements is sintered to a portion of the surface of the lithium transition metal oxide particles, the first compound having a composition different from that of the lithium transition metal oxide particles, the positive electrode further including a second compound containing at least one element Mb selected from the group consisting of Group VI elements, the second compound having a composition different from that of the lithium transition metal oxide particles. |
地址 |
Daito-shi, Osaka JP |