BATTERY
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United States of America Patent
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Sep 28, 2017
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May 31, 2013
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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:
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