ELECTRODE FOR SECONDARY BATTERY

摘要

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.