Title:
BATTERY TERMINAL AND METHOD FOR MANUFACTURING BATTERY TERMINAL
Document Type and Number:
WIPO Patent Application WO/2021/199518
Kind Code:
A1
Abstract:
This negative pole terminal 20 (the battery terminal) is provided with a shaft section 21, a flange section 22 which extends in the radial direction from sides of the shaft section 21, and a recess section 23 enclosed by a wall section 24 which extends beyond the tip end of a Cu layer 32 side of the shaft section 21. In the axial-direction cross section of the shaft section 21, the cross-sectional area of Cu crystal grains which constitute a Cu portion 33 comprising the Cu layer 32 of the wall section 24 is 10 µm2 to 100 µm2, inclusive.
Inventors:
KITAGAWA TAKAO (JP)
YOKOTA MASAYUKI (JP)
ISHII NAONORI (JP)
NAKANO HIROFUMI (JP)
YOKOTA MASAYUKI (JP)
ISHII NAONORI (JP)
NAKANO HIROFUMI (JP)
Application Number:
PCT/JP2020/047232
Publication Date:
October 07, 2021
Filing Date:
December 17, 2020
Export Citation:
Assignee:
HITACHI METALS LTD (JP)
AOYAMA SEISAKUSHO IBARAKI PLANT CO LTD (JP)
AOYAMA SEISAKUSHO IBARAKI PLANT CO LTD (JP)
International Classes:
B21D53/00; H01M50/543
Foreign References:
| JP6014808B1 | 2016-10-26 | |||
| JP2004106059A | 2004-04-08 | |||
| JPH08162088A | 1996-06-21 | |||
| JP2004063133A | 2004-02-26 |
Attorney, Agent or Firm:
MIYAZONO, Hirokazu (JP)
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