CYLINDRICAL NONAQUEOUS ELECTROLYTIC SOLUTION SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a cylindrical nonaqueous electrolytic solution secondary battery having lower internal resistance and better productivity than a conventional battery. SOLUTION: In the cylindrical nonaqueous electrolytic solution secondary battery, a non-coated section which is a part of a core comprising a positive or negative electrode and is not coated by an active material, protrudes at an end of a winding electrode body 4 in the direction of an axis. A plurality of collector electrodes 5 are mounted on a protruding section. Each collector electrode 5 comprises a rivet 54 and a washer 53. The rivet 54 has a tabular head and a shaft. The shaft penetrates a non-coated core bundle 49, a reed 7 and the washer 53. An end of the shaft is narrowed. The non-coated core bundle 49 and the reed 7 are pressed between the tabular head and the washer 53. Each reed 7 is coupled to an electrode terminal 9.