公开(公告)号：US20230113916A1

公开(公告)日：2023-04-13

申请号：US17645271

申请日：2021-12-20

Applicant: LG ELECTRONICS INC.

Inventor： Eunchul PARK ,  Sungeun BANG

IPC: H02J7/00 ,  H02J3/38 ,  H01M10/42 ,  H01M50/213 ,  H01M10/48 ,  H01M50/251 ,  G01R31/3842

Abstract: An energy storage system includes: a battery configured to at least store received electrical energy in a form of direct current, or output the stored electrical energy; a power conditioning system configured to convert an electrical characteristic to charge or discharge the battery; and a battery management system configured to monitor state information of the battery, wherein the battery includes a plurality of battery packs each including a respective plurality of battery cells, wherein the battery management system includes: battery pack circuit boards which are disposed in each of the plurality of battery packs, and configured to obtain state information of the plurality of battery cells included in each battery pack; and a main circuit board coupled to the battery pack circuit boards by a communication line, and configured to receive state information obtained by the battery pack circuit boards from each battery pack.

公开(公告)号：US20230116959A1

公开(公告)日：2023-04-20

申请号：US17555229

申请日：2021-12-17

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin LEE ,  Eunchul PARK

IPC: H02J7/00 ,  H01M10/48 ,  H01M10/42 ,  H01M10/44

Abstract: An energy storage system of the present disclosure includes: a battery configured to store received electrical energy in a form of direct current, or to output the stored electrical energy; and a battery management system configured to control the battery, wherein the battery management system includes: a sensing unit comprising a sensor for measuring temperature of the battery; a memory in which a derating table for charging and a derating table for discharging are stored; and a microcomputer unit configured to control C-rate based on the temperature of the battery and the derating table for charging when charging the battery, and to control the C-rate based on the temperature of the battery and the derating table for discharging when discharging the battery.