Title:
BATTERY CELL AND MANUFACTURING METHOD FOR THE SAME
Document Type and Number:
Japanese Patent JP2017076576
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a battery cell and a manufacturing method for the same that can surely enhance an output by increasing the number of lamination layers of electrodes.SOLUTION: A battery cell 1 includes: an electrode laminate 2 having a plurality of laminated positive electrodes 21 and negative electrodes 22 that have active material layers each coated with an active material on both sides of a metal foil, and positive electrode uncoated portions 21b, 21c and negative electrode uncoated portions 22b, 22c; a positive electrode tab terminal 3 joined to the positive electrode uncoated portions 21b and 21c; and a negative electrode tab terminal 4 joined to the negative electrode uncoated portions 22b and 22c. The positive electrode 21 and the negative electrode 22 comprise a plurality of kinds of electrodes which are formed so that the positive electrode uncoated portions 21b and 21c and the negative electrode uncoated portions 22b and 22c do not overlap each other in the lamination direction at the end portions. The positive and negative electrodes are laminated so that the positive electrode uncoated portions 21b and 21c and the negative electrode uncoated portions 22b and 22c overlap with each other with respect to the same kind of electrodes, and joined to the positive electrode tab terminal 3 and the negative electrode tab terminal 4, respectively.SELECTED DRAWING: Figure 3
Inventors:
OHAMA HIROKAZU
SUGIURA KYOSUKE
SUGIURA KYOSUKE
Application Number:
JP2015204567A
Publication Date:
April 20, 2017
Filing Date:
October 16, 2015
Export Citation:
Assignee:
DENSO CORP
International Classes:
H01M2/26; H01M2/30; H01M10/04; H01M10/0585
Attorney, Agent or Firm:
Patent business corporation Kyoritsu