发明公开
- 专利标题: NONAQUEOUS ELECTROLYTE SECONDARY CELL
- 专利标题(中): 非水电解质二次电池
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申请号: EP00917330.3申请日: 2000-04-18
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公开(公告)号: EP1109239A1公开(公告)日: 2001-06-20
- 发明人: SHIMAMURA, Harunari , NITTA, Yoshiaki
- 申请人: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 申请人地址: 1006, Ohaza Kadoma Kadoma-shi, Osaka 571-8501 JP
- 专利权人: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 当前专利权人: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 当前专利权人地址: 1006, Ohaza Kadoma Kadoma-shi, Osaka 571-8501 JP
- 代理机构: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät
- 优先权: JP11207499 19990420; JP11207399 19990420
- 国际公布: WO0063986 20001026
- 主分类号: H01M4/38
- IPC分类号: H01M4/38 ; H01M4/02 ; H01M10/40
摘要:
A non-aqueous electrolyte secondary battery using composite particles for its negative electrode. In the composite particles , nucleus particles including at least one element selected from tin, silicon, and zinc as their constituent element are entirely or partly covered with a solid solution or inter-metallic compound of said constituent element and at least one element selected from groups consisting of Group 2 elements, transition elements, and Group 12, Group 13, and Group 14 elements in the Periodic Table except for the constituent element of the nucleus particles and carbon. Further, the present invention is characterized in that the NMR signals of the lithium intercalated in the composite particles appear within the range of -10 to 40 ppm with respect to lithium chloride and at least one signal appears within the range of -10 to 4 ppm .
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