| abstract |
PCT No. PCT/JP92/00789 Sec. 371 Date Feb. 19, 1993 Sec. 102(e) Date Feb. 19, 1993 PCT Filed Jun. 19, 1992 PCT Pub. No. WO93/00717 PCT Pub. Date Jan. 7, 1993.An electrode for a secondary battery is described comprising an alkali metal carried on a carrier composed mainly of a carbonaceous material satisfying the following characteristics (1) and (2), and having a multiphasic structure comprising a nucleus and a surface layer around the nucleus, (1) a true density rho of 1.80 g/cm3 or more, and (2) in the Raman spectrum analysis using an argon ion laser beam with a wavelength of 5145 ANGSTROM , it has a peak PA in the range of 1580 to 1620 cm-1 and a peak PB in the range of 1350 to 1370 cm-1, and the ratio of intensity IB Of the PB to intensity IA of the PA, R=IB/IA iS 0.4 or more. |