| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a porous film which can be manufactured readily and glued to various objects with high adhesive force, and which can offer a battery excellent in rate characteristics and high-temperature cycle characteristics, and others.SOLUTION: Slurry for a secondary battery porous film comprises non-conductive particles, a binder for a porous film, and water. The non-conductive particles have a glass transition temperature of 80-160°C. With the non-conductive particles, the degree of swelling after porous film formation with respect to an electrolytic solution is 3 to 30 times; its particle size distribution based on the number of particles has peaks in a range of particle diameters of 20-150 nm, and a range of particle diameters of 200-1500 nm; and the ratio (VS)/(VL) of the total volume (VS) of non-conductive particles having particle diameters in the range of 20-150 nm to the total volume (VL) of non-conductive particles having particle diameters in the range of 200-1500 nm is between 0.0001 and 0.01 inclusive. The slurry is used to arrange a secondary battery and others.</p> |
