| 发明名称 |
リチウムイオン二次電池用電極材料、この電極材料の製造方法、及びリチウムイオン二次電池 |
| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrode material for a lithium ion secondary battery which improves rate characteristics and cycle characteristics.SOLUTION: The electrode material contains conductive carbon powder and nano particles of a cathode active material containing a layered xLiMO(1-x)LiMnOsolid solution (in the formula, M denotes one or more kinds of transition metals of which the average valence is +3, and 0<x<1) deposited to the conductive carbon powder, and spinel LiMnOin the ratio of 100 to 80:0 to 20 in a mass ratio. The electrode material can be obtained by carrying a fine precursor of the cathode positive material on the conductive carbon powder by using ultracentrifugal treatment and then performing flash heating treatment for three to five minutes at the temperature of 600 to 700°C in an oxygen containing atmosphere. |
| 申请公布号 |
JP6095331(B2) |
申请公布日期 |
2017.03.15 |
| 申请号 |
JP20120249671 |
申请日期 |
2012.11.13 |
| 申请人 |
日本ケミコン株式会社;国立大学法人東京農工大学;有限会社ケー・アンド・ダブル |
发明人 |
直井 勝彦;直井 和子;久保田 智志;米倉 大介;石本 修一;玉光 賢次 |
| 分类号 |
H01M4/505;H01M4/36;H01M4/525;H01M4/62 |
主分类号 |
H01M4/505 |
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