Patent ID: 7560194
Filing Date: 2009-07-14
Classification: C08J,C08K,H01B,H01M,Y02E

Abstract:
1. A gel polymer electrolyte precursor composition for use in the fabrication of a secondary battery cell, which comprises: a) a modified bismaleimide oligomer resulting from a reaction of barbituric acid with bismaleimide; b) one or more acrylic/acrylate type monomer represented by CH c) a non-aqueous metal salt electrolyte; d) an aprotic solvent; and e) a free radical initiator; wherein, based on the total weight of (a) to (d), (a) constitutes 1-50%; (b) constitutes 1-50%; and (d) constitutes 10-90%, wherein (c) has a concentration of 0.5M to 2M in (d); and (e) is in an amount of 0.1-5%, based on the weight of (b).