| 摘要 |
PROBLEM TO BE SOLVED: To satisfy an adhesive or pressure sensitive adhesive characteristic, and prevent the functional deterioration of electrolyte by reaction with electrolytic salt and the like by using a material having a specific unsaturation degree as an adhesive or a pressure sensitive adhesive of a label adhered to respective parts in a battery. SOLUTION: An adhesive or a pressure sensitive adhesive on which as an unsaturation degree, an iodine value is not more than 10 and/or an unsaturation degree by an NMR method is not more than 0.5×10<-2> mole/g, is used to adhere a display label of its manufacturing lot or the like to a side surface or the like of a battery element. Therefore, electrolyte of an electrolytic solution does not bond to the other component or does not autolyze by reacting with these components. These are constituted by blending a hydrogenation terpene resin and a hydrogenation rosin resin or the like to impart pressure sensitive adhesion and the other additive with an oligomer of polypropylene and polyethylene, polyisobutylene or polydimethyl siloxane or the like. A pressure sensitive adhesive is arranged on one surface of a base material such as polyethylene, and it may be used as a battery inside label. |
