Characteristics of pyrolyzed phenol-formaldehyde resin as an anode for lithium-ion batteries

被引:17
作者
Huang, BY [1 ]
Huang, YZ [1 ]
Wang, ZX [1 ]
Chen, LQ [1 ]
Xue, RJ [1 ]
Wang, FS [1 ]
机构
[1] CHINESE ACAD SCI,BEIJING 100864,PEOPLES R CHINA
基金
中国国家自然科学基金;
关键词
resins; phenol-formaldehyde; lithium-ion batteries; anodes;
D O I
10.1016/S0378-7753(96)02373-7
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Polyacenic semiconductor (PAS) is obtained by pyrolyzing phenol-formaldehyde resin (PFR). The properties of PFR heat-treated at different temperatures are investigated. The lithium intercalation capacity of PAS as a function of heat-treatment temperature (HTT) exhibits a maximum at around 700 degrees C. A knee appears at 700 degrees C, not only in the plot of atomic ratio [H]/[C] versus HTT, but also in the plot of conductivity versus HTT. For PAS with a HTT of 700 degrees C, the maximum in the ratio of the relative intensity of Raman spectra at 1360 cm(-1) corresponds to nanometer graphite, and that at 1580 cm(-1) to graphite. A reasonable explanation of these phenomena is the transformation of nanometer graphite to graphite.
引用
收藏
页码:231 / 234
页数:4
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  • [11] YATA S, Patent No. 6744