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Title:
BATTERY MODULE
Document Type and Number:
WIPO Patent Application WO/2023/218604
Kind Code:
A1
Abstract:
A battery module according to an embodiment comprises a cell balance circuit, a voltage comparison circuit, and an output control circuit. The voltage comparison circuit includes: a plurality of first input wiring lines and a plurality of second input wiring lines to which a plurality of battery cell voltages are supplied; and a plurality of first output wiring lines and a plurality of second output wiring lines, said plurality of first output wiring lines outputting a value obtained by subtracting, from a battery cell voltage supplied to the first input wiring lines, another battery cell voltage supplied to the second input wiring lines and outputting a plurality of differences obtained by subtracting, from a common battery cell voltage, a plurality of respective another battery cell voltages, said plurality of second output wiring lines outputting a plurality of differences obtained by subtracting, from the plurality of respective battery cell voltages, a common another battery cell voltage. The output control circuit stops discharging by the cell balance circuit when the maximum voltage battery cell or the minimum voltage battery cell specified on the basis of the plurality of differences supplied from the plurality of respective first output wiring lines and the maximum voltage battery cell or the minimum voltage battery cell specified on the basis of the plurality of differences supplied from the plurality of respective second output wiring lines are different from each other.

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Inventors:
SENOUE KIYOSHI (JP)
FUJINUMA TOYOHISA (JP)
TERASAKI MASANORI (JP)
Application Number:
PCT/JP2022/020075
Publication Date:
November 16, 2023
Filing Date:
May 12, 2022
Export Citation:
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Assignee:
TOSHIBA KK (JP)
International Classes:
H02J7/02; H02J7/00
Foreign References:
JP2010249793A2010-11-04
JP2009165206A2009-07-23
JP2018046629A2018-03-22
Attorney, Agent or Firm:
SUZUYE & SUZUYE et al. (JP)
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