发明授权
US08119285B2 Cathode material for secondary battery, method for producing cathode material for secondary battery and secondary battery
有权
用于二次电池的阴极材料,二次电池和二次电池用阴极材料的制造方法
- 专利标题: Cathode material for secondary battery, method for producing cathode material for secondary battery and secondary battery
- 专利标题(中): 用于二次电池的阴极材料,二次电池和二次电池用阴极材料的制造方法
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申请号: US10577279申请日: 2004-10-26
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公开(公告)号: US08119285B2公开(公告)日: 2012-02-21
- 发明人: Naoki Hatta , Toshikazu Inaba , Izumi Uchiyama
- 申请人: Naoki Hatta , Toshikazu Inaba , Izumi Uchiyama
- 申请人地址: JP Tokyo
- 专利权人: Mitsui Engineering & Shipbuilding Co., Ltd.
- 当前专利权人: Mitsui Engineering & Shipbuilding Co., Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Law Offices of Peter H. Priest, PLLC
- 优先权: JP2003-365790 20031027
- 国际申请: PCT/JP2004/015836 WO 20041026
- 国际公布: WO2005/041327 WO 20050506
- 主分类号: H01M4/36
- IPC分类号: H01M4/36
摘要:
A positive electrode material is disclosed which contains an iron lithium phosphate as a positive electrode active material and has a large charge/discharge capacity, high-rate adaptability, and good charge/discharge cycle characteristics at the same time. Also disclosed are a simple method for producing such a positive electrode material and a high-performance secondary battery employing such a positive electrode material. Specifically, disclosed is a positive electrode material for secondary battery characterized by mainly containing a positive electrode active material represented by the general formula: LinFePO4 (wherein n is a number of 0-1) and further containing at least one different metal element selected from the group consisting of vanadium (V), chromium (Cr), copper (Cu), zinc (Zn), indium (In) and tin (Sn). This positive electrode material can be produced using a halide of such a metal element as the raw material.
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