发明名称 |
Non-aqueous electrolyte secondary battery-use cathode material, production method therefor, non-aqueous electrolyte secondary battery-use cathode and non-aqueous electrolyte secondary battery using the cathode material |
摘要 |
In order to provide a nonaqueous electrolyte secondary battery negative electrode material that has an excellent discharging capacity, the charge/discharge efficiency and the charge load characteristics, a manufacturing method thereof, a nonaqueous electrolyte secondary battery negative electrode with the negative electrode material and a nonaqueous electrolyte secondary battery, the invention provides a nonaqueous electrolyte secondary battery negative electrode material including graphite particles that have a block-like structure where a plurality of flat graphite fine particles assembles or bonds non-parallel with each other, the aspect ratio of 5 or less and a volume of fine pores in the range of 10 to 10<SUP>5 </SUP>nm in a volume of 400 to 2000 cm<SUP>3</SUP>/kg; and a layer of carbon formed on a surface of the graphite particle, wherein a ratio (by weight ratio) of the layer of carbon to the graphite particle is in the range of 0.001 to 0.01, a manufacturing method thereof, a nonaqueous electrolyte secondary battery negative electrode with the negative electrode material and a nonaqueous electrolyte secondary battery.
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申请公布号 |
US2007015056(A1) |
申请公布日期 |
2007.01.18 |
申请号 |
US20060570349 |
申请日期 |
2006.03.03 |
申请人 |
TAKEI KOUICHI;SUZUKI KIYOSHI;NISHIDA TATSUYA;INOMATA HIDEYUKI;NAKAGAWA HIROSHI;IMAI KATSUYA;SHOJI YOSHIHIRO;TERASAKA MASAYUKI |
发明人 |
TAKEI KOUICHI;SUZUKI KIYOSHI;NISHIDA TATSUYA;INOMATA HIDEYUKI;NAKAGAWA HIROSHI;IMAI KATSUYA;SHOJI YOSHIHIRO;TERASAKA MASAYUKI |
分类号 |
C01B31/04;H01M4/02;H01M4/36;H01M4/58;H01M4/587;H01M4/62;H01M10/052;H01M10/0525;H01M10/36 |
主分类号 |
C01B31/04 |
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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