| 发明名称 |
ACTIVE MATERIAL POWDER AND METHOD OF PRODUCING THE SAME |
| 摘要 |
A method of producing an active material powder includes (i) an attachment step of obtaining a powder including an active material particle, which stores and releases lithium ions at a potential of 4.5 V or higher based on Li, and a coating layer precursor, which is attached to a surface of the active material particle, by attaching an alkoxide solution containing lithium ions and niobium ions to the surface of the active material particle and drying the attached alkoxide solution; and (ii) a heating step of forming a coating layer on the surface of the active material particle by heating the powder obtained in the attachment step to be within a temperature range of 120° C. to 200° C. |
| 申请公布号 |
US2015270537(A1) |
申请公布日期 |
2015.09.24 |
| 申请号 |
US201514640772 |
申请日期 |
2015.03.06 |
| 申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
KATO Yuki;OHTOMO Takamasa;YAMASAKI Hisatsugu;KAWAKAMI Masatsugu |
| 分类号 |
H01M4/36;C01G33/00;H01M4/485 |
主分类号 |
H01M4/36 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method of producing an active material powder comprising:
an attachment step of obtaining a powder including an active material particle, which stores and releases lithium ions at a potential of 4.5 V or higher based on Li, and a coating layer precursor, which is attached to a surface of the active material particle, by attaching an alkoxide solution containing lithium ions and niobium ions to the surface of the active material particle and drying the attached alkoxide solution; and a heating step of forming a coating layer on the surface of the active material particle by heating the powder obtained in the attachment step to be within a temperature range of 120° C. to 200° C. |
| 地址 |
Toyota-shi JP |
