Title:
SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2015053112
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a secondary battery in which shortage of electrolyte due to use can be prevented in the inner peripheral part of a wound electrode body.SOLUTION: A secondary battery includes a wound electrode body constituted by winding a positive electrode and a negative electrode while sandwiching a separator, a battery case in which the wound electrode body and electrolyte are arranged, and an electrolyte absorption member for absorbing the electrolyte stored on the bottom surface of the battery case. The wound electrode body is arranged in the battery case so that the end face is perpendicular to the bottom surface of the battery case. The electrolyte absorption member has an electrode body contact part provided on the inner periphery of the wound electrode body and coming into contact with the inner periphery thereof, and a liquid contact part coming into contact with the electrolyte stored on the bottom surface of the battery case.
Inventors:
MIZUNO SATORU
IWASE KOSUKE
IWASE KOSUKE
Application Number:
JP2013183719A
Publication Date:
March 19, 2015
Filing Date:
September 05, 2013
Export Citation:
Assignee:
NIPPON SOKEN
TOYOTA MOTOR CORP
TOYOTA MOTOR CORP
International Classes:
H01M10/04
Attorney, Agent or Firm:
Patent business corporation Fukami patent firm