LITHIUM ION BATTERY AND METHOD FOR FORMING THE SAME

摘要

A method for forming lithium ion battery by which the formation of a highly safe high-performance lithium ion secondary battery which can be reduced in size and weight, can be formed in an arbitrary shape, and has a high structure strength can be simplified and the productivity of the battery can be improved without using any solid enclosure can. The method includes a process for putting a negative electrode (5) formed by sticking a negative electrode material layer (52) to a negative electrode assembly (51), a separator (4), and a positive electrode (3) formed by sticking a positive electrode active material layer (32) to a positive electrode assembly (31) upon another in this order, by partially interposing an adhesive resin (6) containing at least a part of a plastic resin between the electrodes (5) and (3) and separator (4), and a process for plastically deforming the resin (6). Therefore, the formation of the lithium ion secondary battery can be simplified and the productivity of the battery can be improved.