Title:
POWER STORAGE DEVICE
Document Type and Number:
Japanese Patent JP2014199727
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a power storage device in which the electrolyte can be impregnated efficiently with an active material.SOLUTION: A secondary battery 10 includes, on one side 14a of an electrode assembly 14, a positive electrode tub group 45 and a negative electrode tub group 46 where positive electrode collector tubs 21c and negative electrode collector tubs 31c are collected, respectively, in the lamination direction of the electrode assembly 14. The positive electrode tub group 45 and negative electrode tub group 46 are separated in a direction orthogonal to the lamination direction along the one side 14a of the electrode assembly 14, and the surface on the side opposite to the surface facing the one side 14a of the electrode assembly 14 is curved in a state for facing a lid member 13. An insulating member 17 opens the one side 14a of the electrode assembly 14 to the outside thereof, and a liquid injection hole 13a is arranged at a position held by regions S where the positive electrode tub group 45 and negative electrode tub group 46 are projected, when viewing the lid member 13 in the direction orthogonal to the one side 14a of the electrode assembly 14.
Inventors:
MINAMIGATA ATSUSHI
OKUDA MOTOAKI
OKUDA MOTOAKI
Application Number:
JP2013073816A
Publication Date:
October 23, 2014
Filing Date:
March 29, 2013
Export Citation:
Assignee:
TOYOTA IND CORP
International Classes:
H01M10/04; H01M50/103; H01M50/119; H01M50/474; H01M50/477; H01M50/54; H01M50/627; H01M50/176; H01M50/55; H01M50/553
Attorney, Agent or Firm:
Hironori Onda
Makoto Onda
Makoto Onda