Patent ID: 6723432
Filing Date: 2004-04-20
Classification: C08G,H01G,H01M,Y02E,Y10T

Abstract:
An electrode-forming composition comprisinga binder component containing a solvent-soluble polyimide silicone and an epoxy compound, and an electrically conductive material wherein said polyimide silicone has the following general â€ƒformula (1): wherein X is at least one tetravalent organic group of the following formula (2), (3) or (4): â€ƒW is a divalent organic group of the following general formula (5): â€ƒwherein B is a group of the following formula (6), (7) or (8): â€ƒY is a divalent organic group of the following general formula (9): â€ƒwherein D is CH2, (CH3)2C or (CF3)1C, and â€œaâ€  is 0 or 1, and Z is a divalent siloxane residue of the following general formula (10): â€ƒwherein R is independently a monovalent hydrocarbon group of 1 to 8 carbon atoms, and â€œbâ€  is a positive number of 0 to 30, the letters k, m and n are numbers corresponding to 3 to 40 mol %, 40 to 90 mol %, and 1 to 40 mol %, respectively, and a proportion of the polyimide silicone and the epoxy compound in the binder component is such that the ratio of the moles of epoxy groups in the epoxy compound to the moles of phenolic hydroxyl groups in the polyimide silicone is from 1/1 to 3/1.