发明名称 |
NON-AQUEOUS ELECTROLYTE SECONDARY CELL |
摘要 |
A non-aqueous electrolyte secondary battery containing an alloy particle capable of absorbing and desorbing lithium in the negative electrode has a short cycle life and is insufficient in high-rate discharge characteristics, since the alloy particle is pulverized during charge/discharge cycles. In order to solve this problem, a negative electrode is employed, which comprises an alloy particle containing: at least two selected from the group consisting of metal elements and semimetal elements; oxygen; and nitrogen. It is preferred that the alloy particle have a phase A capable of electrochemically absorbing and desorbing lithium ion and a phase B having lithium ion conductivity or lithium ion permeability and that the phase B contain larger amounts of oxygen and nitrogen than the phase A. |
申请公布号 |
EP1302994(A1) |
申请公布日期 |
2003.04.16 |
申请号 |
EP20010948051 |
申请日期 |
2001.07.17 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
SATO, TOSHITADA;BITO, YASUHIKO;OKAMURA, KAZUHIRO;NITTA, YOSHIAKI |
分类号 |
C22C14/00;B22F1/02;C22C1/04;C22C16/00;H01M4/02;H01M4/36;H01M4/38;H01M4/40;H01M10/05 |
主分类号 |
C22C14/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|