公开(公告)号：US20240036118A1

公开(公告)日：2024-02-01

申请号：US18199571

申请日：2023-05-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyutae KIM ,  SungHyun YOON ,  Jonghoon KIM ,  Sanguk KWON ,  Jeongho AHN

IPC: G01R31/392 ,  G01R31/36 ,  G01R31/367 ,  G01R31/374

CPC classification number: G01R31/392 ,  G01R31/3648 ,  G01R31/367 ,  G01R31/374

Abstract: A battery risk assessment device for a battery module including a plurality of battery cells, including a data measurement unit configured to generate sensing data corresponding to the battery module, wherein the sensing data include cell voltage data comprising voltage information about the plurality of battery cells, cell temperature data comprising temperature information about the plurality of battery cells, module voltage data comprising information about a voltage output from the battery module, and module current data comprising information about a current output from the battery module; a deviation calculator configured to: calculate diffusion resistance data of the plurality of battery cells by using a Thevenin equivalent circuit of the battery module, and calculate deviation information based on the sensing data and the diffusion resistance data, wherein the deviation information indicates at least one from among a voltage deviation of the plurality of battery cells, a temperature deviation of the plurality of battery cells, and a diffusion resistance deviation of the plurality of battery cells; and a risk assessment unit configured to determine a battery risk state based on the deviation information.