US 12,111,365 B2
Battery apparatus and method for measuring cell voltage
Minwoo Kim, Daejeon (KR); Bo Hyun Seo, Daejeon (KR); Seunghyun Lee, Daejeon (KR); and Tae Youn Kim, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Appl. No. 17/790,258
Filed by LG Energy Solution, Ltd., Seoul (KR)
PCT Filed Sep. 23, 2021, PCT No. PCT/KR2021/012929
§ 371(c)(1), (2) Date Jun. 30, 2022,
PCT Pub. No. WO2022/075636, PCT Pub. Date Apr. 14, 2022.
Claims priority of application No. 10-2020-0128638 (KR), filed on Oct. 6, 2020.
Prior Publication US 2023/0042107 A1, Feb. 9, 2023
Int. Cl. G01R 31/396 (2019.01); G01R 31/3835 (2019.01)
CPC G01R 31/396 (2019.01) [G01R 31/3835 (2019.01)] 17 Claims
OG exemplary drawing
 
1. A battery apparatus comprising:
a first battery module including a first plurality of battery cells;
a second battery module including a second plurality of battery cells;
a bus-bar connecting a first electrode terminal of the first battery module and a second electrode terminal of the second battery module;
a cell voltage sensing circuit shared by a first portion of battery cells included in the first plurality of battery cells and a second portion of battery cells included in the second plurality of battery cells, and configured to measure a voltage of each battery cell included in the first and second portions of battery cells and a voltage of the bus-bar; and
a processor configured to correct a voltage of at least one battery cell among the first and second portions of battery cells based on the voltage of the bus-bar.