发明名称 |
Nonaqueous secondary battery, method for making negative electrode component therefor, and apparatuses for evaluating and making graphite material for negative electrode component |
摘要 |
A negative electrode of a nonaqueous secondary battery is formed of a carbonaceous material. The ratio RG=Gs/Gb of the degree of graphitization Gs of the carbonaceous material, determined by a surface-enhanced Raman spectrum, to the degree of graphitization Gb, determined by a Raman spectrum measured using argon laser light, is at least 4.5. Alternatively, the carbonaceous material has a peak in a wavelength range above 1,360 cm<SUP>-1 </SUP>in a surface-enhanced Raman spectrum which is measured by the same surface-enhanced Raman spectrum. The deterioration of the nonaqueous secondary battery is suppressed during use in high-temperature environments and high capacity is maintained for long periods.
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申请公布号 |
US2005202317(A1) |
申请公布日期 |
2005.09.15 |
申请号 |
US20050127461 |
申请日期 |
2005.05.12 |
申请人 |
SONY CORPORATION |
发明人 |
SATORI KOTARO;KITA AKINORI;OMARU ATSUO |
分类号 |
G01N21/65;C01B31/00;C01B31/02;C01B31/04;G01N23/207;H01M2/02;H01M4/02;H01M4/04;H01M4/36;H01M4/58;H01M4/62;H01M6/10;H01M10/40;(IPC1-7):H01M4/58 |
主分类号 |
G01N21/65 |
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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