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US 2018/0019460 A1Published application
Battery
AssigneeSony Corporation
InventorsTomohiro ABE, Motomi SUZUKI
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Abstract
A battery is provided. The battery includes a positive electrode including a positive electrode active material layer provided on a positive electrode current collector; a negative electrode; and a separator at least including a porous film, wherein the porous film has a porosity ε [%] and an air permeability t [sec/100 cc] which satisfy formulae of: t=a×Ln(ε)−4.02a+100 and −1.87×1010×S−4.96≦a≦−40 wherein S is the area density of the positive electrode active material layer [mg/cm2] and Ln is natural logarithm.
Claims25
A battery, comprising:
- a positive electrode including a positive electrode active material layer;
- a negative electrode;
- and
- a separator at least including a porous film,
- wherein the positive electrode active material layer comprises halogen element,
- wherein the porous film has a porosity ε[%] and an air permeability t [sec/100 cc] which satisfy formulae of:
- t=a×Ln(ε)−4.02a+100
- and
- −1.87×1010×S−4.96≦a≦−40
- where S [mg/cm2] is an area density of the positive electrode active material layer and Ln is natural logarithm.
7 more elements
Dependencies are inferred from the claim text.