NON-AQUEOUS ELECTROLYTE BATTERY

摘要

Provided is a non-aqueous electrolyte battery including: a power-generating element; and a battery container configured to house the power-generating element. The power-generating element includes: a positive electrode; a negative electrode; a separator interposed between the positive and negative electrodes; and a non-aqueous electrolyte. The battery container includes: a battery case having an opening; a sealing plate configured to close the opening; and a gasket interposed between the battery case and the sealing plate. The gasket includes a PFA resin being a copolymer of tetrafluoroethylene and perfluoroalkyl vinyl ether, and at least a part of the PFA resin has undergone a melting treatment 2 to 20 times to be a first component. The melting treatment includes heating the PFA resin to a melting temperature of 310° C. to 450° C. for melting and then cooling the PFA resin back to a solid.

主权项

1. A non-aqueous electrolyte battery comprising:
a power-generating element; and a battery container configured to house the power-generating element, the power-generating element including: a positive electrode; a negative electrode; a separator interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte, the battery container including: a battery case having an opening; a sealing plate configured to close the opening; and a gasket interposed between the battery case and the sealing plate, the gasket comprising a PFA resin being a copolymer of tetrafluoroethylene and perfluoroalkyl vinyl ether, at least a part of the PFA resin having undergone a melting treatment 2 to 20 times to be a first component, and the melting treatment including melting the PFA resin by heating at a melting temperature of 310° C. to 450° C. and then cooling the PFA resin back to a solid.