| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte battery enhanced in safety by preventing short-circuit between a positive electrode current collector exposed part and a negative electrode. <P>SOLUTION: A positive electrode 3 of the nonaqueous electrolyte battery has the positive electrode current collector exposed part 8 free from a positive electrode active material-containing layer 2 at a part of a positive electrode current collector 1. In a part where the positive electrode current collector exposed part 8 and a negative electrode active material-containing layer 5 are opposed to each other through a separator 7, an insulating resin film 9 based on a heat-resisting resin having a heat resisting temperature of 150°C or higher and containing crosslinked acrylic resin particles dispersed therein is arranged between both together with the separator 7. The swelling ratio of the crosslinked acrylic resin particles to N-methyl-2-pyrrodione is 150% or less, and the circumference of the crosslinked acrylic resin particles is covered with the heat-resisting resin. <P>COPYRIGHT: (C)2011,JPO&INPIT |
