发明申请
US20160380263A1 POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERIES, POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERIES, AND LITHIUM SECONDARY BATTERY
审中-公开
基本信息:
- 专利标题： POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERIES, POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERIES, AND LITHIUM SECONDARY BATTERY
- 专利标题（中）：用于锂二次电池的正极电极活性材料，锂二次电池的正电极和锂二次电池
- 申请号：US15113679 申请日：2015-01-26
- 公开(公告)号：US20160380263A1 公开(公告)日：2016-12-29
- 发明人： Tetsuri NAKAYAMA , Kenji TAKAMORI , Kyousuke DOUMAE , Takashi KITAMOTO
- 申请人： SUMITOMO CHEMICAL COMPANY, LIMITED , TANAKA CHEMICAL CORPORATION
- 申请人地址： JP Tokyo JP Fukui-shi, Fukui
- 专利权人： SUMITOMO CHEMICAL COMPANY, LIMITED,TANAKA CHEMICAL CORPORATION
- 当前专利权人： SUMITOMO CHEMICAL COMPANY, LIMITED,TANAKA CHEMICAL CORPORATION
- 当前专利权人地址： JP Tokyo JP Fukui-shi, Fukui
- 优先权： JP2014-012835 20140127
- 国际申请： PCT/JP2015/051992 WO 20150126
- 主分类号： H01M4/36
- IPC分类号： H01M4/36 ; H01M4/505 ; H01M10/0525 ; H01M4/525
摘要：
A positive electrode active material for a lithium secondary battery, comprising a lithium-containing composite metal oxide in the form of secondary particles formed by aggregation of primary particles capable of being doped and undoped with lithium ions, each of the secondary particles having on its surface a coating layer, the positive electrode active material satisfying the following requirements (1) to (3):(1) the metal oxide has an α-NaFeO2 type crystal structure of following formula (A): Lia(NibCocM11-b-c)O2 (A) wherein 0.9≦a≦1.2, 0.9≦b
摘要（中）：
（3）活性物质的平均二次粒径为2〜20μm，BET比表面积为0.1〜2.5m 2 / g，1.0〜2.0的活性物质的密度/未封装密度比 。
公开/授权文献:
IPC结构图谱:
| H | 电学 |
| --H01 | 基本电气元件 |
| ----H01M | 用于直接转变化学能为电能的方法或装置，例如电池组 |
| ------H01M4/00 | 电极 |
| --------H01M4/02 | .由活性材料组成或包括活性材料的电极 |
| ----------H01M4/36 | ..作为活性物质、活性体、活性液体的材料的选择 |