Title:
WINDING ELECTRODE
Document Type and Number:
Japanese Patent JP2016143549
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a winding electrode that suppresses a short circuit of both electrode sheets even when an active material layer non-formation part is bent at the time of forming a power collection part.SOLUTION: In a winding electrode of the present invention, a power collection part 28 to which a part of or all of active material layer non-formation parts 26 and 36 that project and overlap is/are collected and relatively connected is separately formed in one end part and the other end part of a winding axial direction in a positive electrode sheet 20 and a negative electrode sheet 30 in a winding state. At least one of the positive electrode sheet and negative electrode sheet is formed so that a length of a width direction of the active material layer non-formation part constructing an outside part of the power collection part of the active material layer non-formation part relatively connected for constructing the power collection part in the sheet becomes larger than that of the width direction of the active material layer non-formation part constructing an inside of the power collection part from the outside part.SELECTED DRAWING: Figure 1
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Inventors:
KATO DAIKI
Application Number:
JP2015018217A
Publication Date:
August 08, 2016
Filing Date:
February 02, 2015
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
H01M10/04; H01M4/04; H01M4/13; H01M10/0587
Attorney, Agent or Firm:
Makoto Abe
Michiko Oi
Hiroaki Yamane
Michiko Oi
Hiroaki Yamane