发明名称 |
NONAQUEOUS SOLVENT SECONDARY BATTERY |
摘要 |
PURPOSE:To increase the life and capacity and to decrease self-discharge by supporting an active material comprising lithium or alkali metals mainly consisting of lithium in carbon black having specific parameters. CONSTITUTION:Carbon black whose spacing (d002) of (002) face obtained by X-ray diffraction is 3.35-3.8Angstrom , crystal lattice size (Lc) in a c-axis direction is 10-250Angstrom , crystal lattice size (La) in an a-axis direction is 15-250Angstrom , and specific surface area obtained by BET method is 50 m<2>/g or more is used as the supporter of a negative active material. A secondary battery obtained by this constitution is not influenced by overcharge and has long charge-discharge cycle life. Since the negative active material is steadily supported in charging, high rate discharge is made possible, and self-discharge is retarded. |
申请公布号 |
JPS63285872(A) |
申请公布日期 |
1988.11.22 |
申请号 |
JP19870120173 |
申请日期 |
1987.05.19 |
申请人 |
MITSUBISHI PETROCHEM CO LTD;TOSHIBA BATTERY CO LTD |
发明人 |
NISHII TOSHIBUMI;MIYABAYASHI MITSUTAKA;YUI HIROSHI;INADA KUNIAKI;IKEDA KATSUHARU;NOSE HIROYOSHI |
分类号 |
H01M4/64;H01M4/133;H01M4/66 |
主分类号 |
H01M4/64 |
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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