Title:
バッテリー管理装置及び方法
Document Type and Number:
Japanese Patent JP7392248
Kind Code:
B2
Abstract:
A battery management apparatus according to an embodiment of the present disclosure includes: an EIS unit configured to output an AC current to a battery at a plurality of time points and generate an EIS profile representing a resistance of the battery as a corresponding relationship between a real part and an imaginary part at each of the plurality of time points; and a control unit configured to obtain the plurality of EIS profiles for the battery generated by the EIS unit, determine a plurality of arcs in each of the plurality of EIS profiles, calculate an arc resistance value for each of the plurality of determined arcs, calculate a resistance change rate for the arc resistance value between corresponding arcs among the plurality of arcs, and determine each of the plurality of arcs as a negative electrode-originated arc or a positive electrode-originated arc based on the plurality of calculated resistance change rates and a preset criterion change rate.
Inventors:
Bae, Yun-Jun
Cha, A-Min
Cha, A-Min
Application Number:
JP2022552275A
Publication Date:
December 06, 2023
Filing Date:
December 15, 2021
Export Citation:
Assignee:
LG Energy Solution Limited
International Classes:
G01R31/389; G01R31/367; G01R31/3835; G01R31/3842; H01M10/48; H02J7/00
Domestic Patent References:
| JP2017118642A | ||||
| JP2016090346A | ||||
| JP2014044149A | ||||
| JP2012222945A |
Foreign References:
| WO2012073997A1 | ||||
| KR1020200122903A | ||||
| KR1020120082330A | ||||
| KR1020180062814A | ||||
| KR102140632B1 | ||||
| KR1020180063825A |
Attorney, Agent or Firm:
Patent Attorney Corporation RYUKA International Patent Office