Title:
BATTERY MODULE
Document Type and Number:
Japanese Patent JP2023035857
Kind Code:
A
Abstract:
To provide a battery module capable of suppressing the deterioration of measurement accuracy of a battery state by covering positive and negative electrodes with a cylindrical first magnetic shield.SOLUTION: A battery module 1A includes a cylindrical first magnetic shield 40 covering a positive electrode tab 12a and a negative electrode tab 13, and a cell state monitoring circuit board 50 for monitoring the state of a battery cell 10a and a battery cell 10b. The cell state monitoring circuit board is a printed wiring board, and includes a substrate fixed on an external surface of the first magnetic shield 40, and a cell state monitoring circuit formed on the substrate. The cell state monitoring circuit includes response voltage signal output means, cell current signal output means, and cell state diagnosis means for diagnosing the state of the battery cells from the outputs of the response voltage signal output means and the cell current signal output means.SELECTED DRAWING: Figure 2
Inventors:
SAKAI MASANOBU
IKEZOE KEIGO
HASEGAWA HIDEYUKI
OBATA TAKEAKI
IKEZOE KEIGO
HASEGAWA HIDEYUKI
OBATA TAKEAKI
Application Number:
JP2022114578A
Publication Date:
March 13, 2023
Filing Date:
July 19, 2022
Export Citation:
Assignee:
NISSAN MOTOR
RENAULT SAS
RENAULT SAS
International Classes:
H01M10/48; G01R31/389; H01M50/211; H01M50/284; H01M50/289; H01M50/296; H01M50/505; H01M50/512; H01M50/548; H01M50/55; H01M50/569
Attorney, Agent or Firm:
Patent Attorney Corporation Tokoshie Patent Office