| 摘要 |
PURPOSE: To prevent lithium whiskers from precipitating on the surface of a negative electrode and prevent gas generation due to decomposition of an electrolytic liquid by providing a battery composed of a non-aqueous electrolytic liquid, a positive electrode, and a negative electrode in which a tin oxide containing lithium and having the formula shown is used. CONSTITUTION: As to a coin-type non-aqueous electrolyte secondary battery for testing, an electric collector 3 made of a stainless steel sheet is welded to the inside of a battery case 1 made of the same stainless steel. A prescribed amount of a mix 5 is molded on the collector 3, a separator 6 made of a finely porous polypropylene is sandwiched, and a sealing plate 2 which is made of a stainless steel sheet and to which metal lithium is stuck seals the case 1 through an insulating gasket 7 made of polypropylene to manufacture a battery. The mix 5 is prepared by mixing 88 pts. by wt. of lithium-containing tin oxide with 6 pts. by wt. of carbon black and 6 pts. by wt. of polytetrafluoroethylene resin powder and molded, said tin oxide is produced by mixing LiOH and SnO2 at 8:1 weight ratio and composing at 1000 deg.C in nitrogen or air and which has the formula shown. |
