An electrode for secondary batteries, in which an alkali metal of an active material is carried by a carrier, whose principal component is the carbonaceous material of the multilayer structure comprising a surface layer and the nucleous enveloped therein and satisfies the following conditions: (1) a true density rho is not less than 1.80 g/cm<3>; (2) in Raman spectroscopic analysis using the argon ion laser beam of 5145 ANGSTROM in its wavelength, peaks PA and PB exist within the ranges of 1580-1620 cm<-><1> and 1350-1370 cm<-><1> respectively, and the ratio R = IB/IA of the intensity IB of PB to the intensity IA of PA is not less than 0.4.
申请公布号
DE69222837(D1)
申请公布日期
1997.11.27
申请号
DE1992622837
申请日期
1992.06.19
申请人
MITSUBISHI CHEMICAL CORP., TOKIO/TOKYO, JP
发明人
MIYABAYASHI, M., TSUKUBA RES. CTR, MITSUBISHI, INASHIKI-GUN, IBARAKI 300-03, JP;HAYASHI, MANABU, TSUKUBA RESEARCH CENTER, AMIMACHI, INASHIKI-GUN, IBARAKI 300-03, JP