Patent ID: 7510799

Claim:
A nonaqueous-electrolyte battery comprising: a unit cell comprising a plurality of electrodes and a plurality of electrode terminal leads that are electrically connected to said respective electrodes and extend outwardly from said unit cell; a coating on said electrode terminal leads comprising an under layer and a sealant resin outer layer, said sealant resin outer layer being the product of a process comprising the steps of: (a) applying a resin layer to at least a portion of each of said electrical terminal leads along a periphery of each of said electrode terminal leads, and (b) contacting said resin layer with a heater head, said heater head comprising an elastic member; and a battery case substantially enclosing said unit cell therein, said battery case comprising a multi-layer film, said film comprising a case-protecting layer, an aluminum layer, and a heat weld layer, wherein, at least a portion of said sealant resin outer layer has an uneven shape; said heat weld layer substantially encloses said unit cell by contacting said sealant resin outer layer to substantially form a seal therebetween; at least a portion of each of said electrode terminal leads extends outwardly from said battery case; said sealant resin outer layer extends along each of said electrode terminal leads outwardly from said battery case to a distance, outside of said battery case, that is longer than the thickness of said battery case; and a ratio of the thickness of the sealant resin outer layer to a length that the sealant resin outer layer protrudes from the battery case is 1:10.