ELECTRODE SUBSTRATE CONSTITUTING MATERIAL FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM POLYMER BATTERY, ELECTRODE SUBSTRATE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM POLYMER BATTERY, AND MANUFACTURE THEREOF

• Main Authors: ISHIBASHI TATSUO, NISHIDA MASAHIRO, OKUMURA SHUZO
• Format: Patent
• Language: English
• Published: 24.10.2000
• Edition: 7
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PROBLEM TO BE SOLVED: To provide an electrode substrate for a lithium ion secondary battery and a lithium polymer battery with an excellent yield and mass productivity at a low cost, an electrode substrate constituting material for the lithium ion secondary battery and the lithium polymer battery, and manufacturing methods thereof. SOLUTION: A surface of a sheet-like insulating porous body 1 having many pores through which lithium ions can pass through and a surface inside the pores are applied with a solution containing a substrate resin and a precursor compound 3 of an electroless plating catalyst and are dried to be coated with a substrate resin layer 2 while maintaining a porosity of the insulating porous body 1. The precursor compound 3 in the substrate resin layer 2 is reduced to a metal particle being the electroless plating catalyst. The surface of the substrate resin layer 2 is washed. The surface of the substrate resin layer 2 after being reduced and washed is electroless-plate and electroplated to be coated with a metal layer while maintaining a porosity of the insulating porous body 1.