Electrode plate for nonaqueous electrolyte secondary battery and nonaqueous electrolyte secondary battery

Abstract

There is disclosed an electrode plate for a nonaqueous electrolyte secondary battery, which comprises a collector and an active material layer provided on at least one side of the collector, in which the active material layer has one or more slits. Such an electrode plate can facilitate infiltration of a liquid electrolyte even when wound at high density and can have high stability of quality. There is also disclosed a nonaqueous electrolyte secondary battery with high capacity and high quality, which is constructed using the above-mentioned electrode plate.

1 . An electrode plate for a nonaqueous electrolyte secondary battery, comprising a collector and an active material layer formed on at least one side of the collector, wherein the active material layer has one or more slits.  
     
     
         2 . The electrode plate according to  claim 1 , wherein the slit has a depth of about 5 μm or more.  
     
     
         3 . The electrode plate according to  claim 1 , wherein a distance between the adjacent slits is from about 0.1 mm to about 10 mm.  
     
     
         4 . A nonaqueous electrolyte secondary battery, comprising the electrode plate according to  claim 1.