Abstract: Provided is a battery which can reduce expansion caused by gas emission when stored at high temperature. A secondary battery (1) is constructed such that a flat wound electrode (20) as a power generating element is sandwiched between exterior members (30a, 30b), having adhesion layers (40a, 40b) interposed therebetween. The adhesion layers (40a, 40b) are, for example, two-sided adhesive tapes and have a structure such that adhesive layers are formed on both surfaces of a thin plate-shaped support layer. The support layer is preferably made of polypropylene or polyimide. The adhesion layers (40a, 40b) are composed of maleated polypropylene whose melting point is preferably in a range from 100° C. to 200° C., more preferably, in a range from 140° C. to 180° C.

Abstract: Provided is a battery which can reduce expansion caused by gas emission when stored at high temperature. A secondary battery (1) is constructed such that a flat wound electrode (20) as a power generating element is sandwiched between exterior members (30a, 30b), having adhesion layers (40a, 40b) interposed therebetween. The adhesion layers (40a, 40b) are, for example, two-sided adhesive tapes and have a structure such that adhesive layers are formed on both surfaces of a thin plate-shaped support layer. The support layer is preferably made of polypropylene or polyimide. The adhesion layers (40a, 40b) are composed of maleated polypropylene whose melting point is preferably in a range from 100° C. to 200° C., more preferably, in a range from 140° C. to 180° C.

Abstract: A nonaqueous-electrolyte secondary battery prevents a short circuit between a positive electrode and a negative electrode even if pressure is applied from the outside, or stress is generated by folding applied thereon, during the battery manufacture, or when the battery is used as a product. The lithium ion battery includes a structure in which the positive electrode, gel-type macromolecular solid electrolyte layers in the positive electrode, separators, gel-type macromolecular solid electrolyte layers in the negative electrode, and the negative electrode are laminated; and two covering members are provided at ends of the positive electrode and the negative electrode, with two pairs of covering members disposed opposed to each of the two covering members.

Abstract: In a nonaqueous-electrolyte secondary battery, it prevents short circuit between a positive electrode and a negative electrode even if pressure from the outside, or stress generated by folding is applied thereon, during the battery is manufactured, or when the battery is used as a product. In the lithium ion battery comprising a laminating structure, in which the positive electrode, gel-type macromolecular solid electrolyte layers in the positive electrode, separators, gel-type macromolecular solid electrolyte layers in the negative electrode, the negative electrode are laminated, two covering members are provided in ends of the positive electrode and the negative electrode, two pair of covering members are provided in a position on one electrode in either one of the positive electrode or the negative electrode oppose to the positions, in which the two covering members are provided.