Method outer case with its manufacturing non-aqueous electrolyte battery
2003
There are mass productivity, and a thin outer case of strong non-aqueous solution electrolyte battery damage. Exterior case 4 is composed of a case body 4a and the cover 4b, after interior a non-aqueous electrolyte battery 2 such as a Lithium Ion polymer secondary batteries, are integrally joined across. Cover 4b is composed of a material of the synthetic resin film-like thin plate 4c, it is thin outer casing 4. The case body outer circumferential frame 9 of the case body 4a and the cover 4b, the cover outer peripheral frame 10 is molded by injection molding, the joint constitutes the stepped portion 9a, a 10a. To have the step portion, even if an impact or the like and has a configuration that ensures the mechanical strength, and has a strong exterior case 4 to injury.
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