| 摘要 |
<p>A non-aqueous electrolytic battery, wherein a wound electrode body (10) having positive poles (11) with positive pole active material and negative poles (12) with negative pole active material wound through separators (13) is contained in a battery container (1), the separators (13) are formed of multiple layers of, i.e., three or more layers of polyolefin porous films with different film layer thicknesses or average diameter of pores, the outermost layer of the separators is formed of porous polypropylene, at least one layer of the inner layers thereof is formed of porous polyethylene, and the total thickness of the layers formed of porous polyethylene is within 40 to 84% of the thickness of the separators, whereby a battery temperature can be controlled, a reliability can be increased, and a productivity and cycle characteristics can be increased.</p> |
