发明名称 |
Carbon fibers, production process therefor and electrode for batteries |
摘要 |
Fine carbon fibers having a fiber diameter of 1 mum or less, an interlayer distance d<SUB>002 </SUB>between carbon layers as determined by an X-ray diffraction method of 0.335 to 0.342 nm or less and satisfying d<SUB>002</SUB><0.3448-0.0028 (log phi) where phi stands for the diameter of the carbon fibers, and a thickness Lc of the crystal in the C axis direction of 40 nm or less. Fine carbon fibers containing boron in crystals of the fiber. The fine carbon fibers can be produced by using vapor-grown fine carbon fibers as a raw material, adding a boron or a boron compound to the material; pressing the mixture to regulate the bulk density to preferably 0.05 g/cm<SUP>3 </SUP>or more; and heating at a temperature of 2000° C. or higher.
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申请公布号 |
US6946110(B2) |
申请公布日期 |
2005.09.20 |
申请号 |
US20020268707 |
申请日期 |
2002.10.11 |
申请人 |
SHOWA DENKO K.K. |
发明人 |
NISHIMURA KUNIO;ENDO MORINOBU |
分类号 |
D01F9/127;D01F11/12;H01M4/02;H01M4/58;H01M4/587;H01M4/62;H01M4/96;H01M10/052;H01M10/36;H01M10/40;(IPC1-7):D01F9/12 |
主分类号 |
D01F9/127 |
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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