NEGATIVE ELECTRODE PLATE FOR NONAQUEOUS BATTERY, ELECTRODE GROUP FOR NONAQUEOUS BATTERY AND METHOD FOR PRODUCING SAME, AND TUBULAR NONAQUEOUS SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME

摘要

A negative electrode for a nonaqueous battery includes a double-coated part (14) including a negative electrode active material layer (13) formed on each surface of a current collector core (12), a core exposed part (18) which is located at an end of the current collector core (12), and does not include the negative electrode active material layer (13), and a single-coated part (17) which is located between the double-coated part (14) and the core exposed part (18), and includes the negative electrode active material layer (13) formed only on one of the surfaces of the current collector core (12). A plurality of grooves (10) are formed in each surface of the double-coated part (14) to be inclined relative to a longitudinal direction of the negative electrode (3), while the grooves (10) are not formed in the single-coated part (17). A negative electrode current collector lead (20) is connected to the core exposed part (18). The negative electrode (3) is wound in such a manner that the core exposed part (18) constitutes a last wound end.