Title:
POWER STORAGE DEVICE AND MANUFACTURING METHOD THEREOF
Document Type and Number:
Japanese Patent JP2019032925
Kind Code:
A
Abstract:
To provide a technique for appropriately welding a fixed portion of a caulking terminal and an external terminal.SOLUTION: A power storage device 100 includes a case 1, a caulking terminal 7, and an external terminal 61. The case 1 has a main body 111 and a lid portion 112. The caulking terminal 7 has a columnar portion 14 and a fixing portion 16 having an upper surface 16a, a lower surface 16b, and a side surface 16c. The external terminal 61 has an abutting surface 61b that abuts against the lower surface 16b of the fixing portion 16 and is sandwiched between the fixing portion 16 and the lid portion 112. A first welding mark 24 is formed at least on the upper surface 16a or the side surface 16c of the fixing portion 16. On the first section of the fixing portion 16 and the external terminal 61 in the plane including the first welding mark 24 and the axis of the columnar portion 14, a straight second welding mark 26 extending from the first welding mark 24 to the inside of the external terminal 61 is formed. The length of the first straight line connecting the center in the width direction of the second welding mark 26 and the lowermost portion in the fixing portion is shorter than the thickness of the fixing portion 16 in the first section.SELECTED DRAWING: Figure 3
Inventors:
HIROSE TAKAYUKI
KURITA MIKIYA
OIDE RYUJI
IWA TOSHIAKI
OGAWA YOSHIHIRO
MITSUYASU ATSUSHI
AKIYOSHI NORIMITSU
KURITA MIKIYA
OIDE RYUJI
IWA TOSHIAKI
OGAWA YOSHIHIRO
MITSUYASU ATSUSHI
AKIYOSHI NORIMITSU
Application Number:
JP2015252537A
Publication Date:
February 28, 2019
Filing Date:
December 24, 2015
Export Citation:
Assignee:
TOYOTA IND CORP
EAGLE IND CO LTD
EAGLE IND CO LTD
International Classes:
H01M10/04; H01M50/176; H01M50/55; H01M50/553; H01M50/566; H01M50/574
Attorney, Agent or Firm:
Kaiyu International Patent Office