| 摘要 |
PROBLEM TO BE SOLVED: To increase the adhesion of an electrode active material with a current collector by kneading the electrode active materiel and the derivative of a specific material represented by formula of right side in the existence of a solvent to form slurry, then applying the slurry to the electrode current collector. SOLUTION: An electrode active material and a 2-substitution-4,6- dimercapto-1,3,5 derivative having specific structure represented by formula I are kneaded in the existence of a solvent to prepare slurry, and the slurry is applied to an electrode current collector. In formula of right side R shows SR1, OR1, or NR1R2, and R1, R2 show the sam or different hydrogen or alkyl group. M shows hydrogen, an alkali metal, or an alkali earth metal. The binder is fluororesin and the current collector is a metal sheet. The slurry is applied to a copper foil whose polished surface is previously roughened by polishing with #1000 emery paper, allows to stand 120 deg.C for one hour, dried in vacuum, then pressed to obtain the specified electrode. The considerable amount of pitch coke residue is attached on the electrode. |
