ELECTRODE PLATE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND ITS MANUFACTURING METHOD, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE ABOVE ELECTRODE PLATE

摘要

PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery in which it is possible to take a lead wire so that it laps on itself without causing a deformation of an electrode plate and which has a high energy per volume thanks to better efficiency of battery reaction, and at the same time, it is easy to fix the lead wire and has a high production efficiency.

SOLUTION: A combination of a cathode plate of nonaqueous electrolyte secondary battery and an anode plate is composed of the cathode plate and the anode plate which have electrode active layers placed in a given pattern. When it is wound with a separator between the cathode plate and the anode plate, a pitch of each electrode active layer in a longitudinal direction of a current collector differs so that each of non-coated parts of active material layers of both cathode and anode and each of coated parts of active material layers of both the cathode and the anode are positioned to lap on each other.

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