发明名称 |
NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR MANUFACTURING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME |
摘要 |
A negative electrode for nonaqueous electrolyte secondary battery capable of reversible occlusion and release of lithium ions, comprising current collector (11) provided on at least one major surface thereof with depressed portion (12) and protrudent portion (13) and, superimposed on the protrudent portion (13) of the current collector (11), columnar body (15) composed of a laminate of n (n>=2) layers of columnar body portions (16a,16b,16c) containing elements whose content ratio sequentially changes in the longitudinal direction of the current collector (11), wherein odd-numbered layers and even-numbered layers of the columnar body portions (16a,16b,16c) are different from each other in the direction of change of element content ratio. |
申请公布号 |
KR20080057229(A) |
申请公布日期 |
2008.06.24 |
申请号 |
KR20087004928 |
申请日期 |
2007.09.21 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
UGAJI MASAYA;HASEGAWA MASAKI;YAMAMOTO TAISUKE;OHARA KEISUKE |
分类号 |
H01M4/139;H01M4/38;H01M4/70 |
主分类号 |
H01M4/139 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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