Title:
BATTERY PACK AND BATTERY ASSEMBLY
Document Type and Number:
Japanese Patent JP2019114411
Kind Code:
A
Abstract:
To provide a battery pack which enables the easy determination of a life.SOLUTION: The battery pack comprises: a nonaqueous electrolyte secondary battery including a power generation element including a positive electrode having a positive electrode active material layer, a negative electrode having a negative electrode active material layer and a separator located therebetween, and an outer package body formed by a laminate film, in which the power generation element is encased together with an electrolyte solution; and a pressure sensor including a sensor part for sensing a pressure accompanying the expansion and contraction of the nonaqueous electrolyte secondary battery, and a processing part for detecting a difference between a pressure applied thereto when the battery is charged and a pressure applied thereto when the battery is discharged.SELECTED DRAWING: Figure 1
Inventors:
KITAMURA HIROTAKA
YAMASHIMA MASAYUKI
YAMASHIMA MASAYUKI
Application Number:
JP2017246796A
Publication Date:
July 11, 2019
Filing Date:
December 22, 2017
Export Citation:
Assignee:
TDK CORP
International Classes:
H01M10/48; H01M2/02; H01M2/10; H01M4/38; H01M4/525; H01M4/587; H01M10/052; H01M10/0525; H01M10/0566; H01M10/44
Attorney, Agent or Firm:
Sumio Tanai
Norihiko Ara
Masato Iida
Akihiro Ogino
Norihiko Ara
Masato Iida
Akihiro Ogino