发明名称 |
Modified Natural Graphite Particles |
摘要 |
A modified natural graphite material which provides a negative plate having improved adhesion between a negative electrode mixture and a current collector has a circularity of at least 0.92 and at most 1.0 and an incident angle dependence S60/0 of the peak intensity ratio of at least 0.5 and at most 0.7 as determined by measurement of C K-edge X-ray absorption spectra using synchrotron radiation as an excitation source. It preferably satisfies at least one of the following conditions: an absolute specific gravity of at least 2.25 (g/cm3), a tap density of at least 1.0 g/cm3 and at most 1.4 g/cm3, and linseed oil absorption of at least 20 cm3/100 g and at most 50 cm3/100 g. A carbonaceous material may adhere to at least a portion of the surface of the graphite particles. |
申请公布号 |
US2014093781(A1) |
申请公布日期 |
2014.04.03 |
申请号 |
US201214110240 |
申请日期 |
2012.04.03 |
申请人 |
NISHIHARA KATSUHIRO;YAMAMOTO HIROSHI;NAGATA TATSUO;NEGI NORIYUKI;FUJIWARA TOORU;CHUO DENKI KOGYO CO., LTD. |
发明人 |
NISHIHARA KATSUHIRO;YAMAMOTO HIROSHI;NAGATA TATSUO;NEGI NORIYUKI;FUJIWARA TOORU |
分类号 |
H01M4/587 |
主分类号 |
H01M4/587 |
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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