Method For Estimating State Of Health Of Lithium Sulfur Battery

Abstract: The present invention provides a method for estimating the state of health (SoH) of a battery, comprising the steps of: a) maintaining a subject battery of which the state of health is to be checked, in an idle state for 0.01 seconds or more in a fully charged state; b) measuring OCV}(det) in a state in which the voltage drops during the idle state; c) obtaining ?OCV by subtracting the OCV(det) from the OCV(ini) measured in advance in the same way as in steps a) and b) at the beginning of use of the subject battery of which the state of health is to be checked; and d) estimating the state of health (%) of the battery from the magnitude of the ?OCV.

Patent Information

Application #

Filing Date

08 September 2023

Publication Number

49/2023

Publication Type

INA

Invention Field

PHYSICS

Status

Email

Parent Application

Applicants

LG ENERGY SOLUTION, LTD.

Tower1, 108, Yeoui-daero, Yeongdeungpo-gu, Seoul 07335

Inventors

1. AHN, Jihoon

LG Energy Solution Research Park, 188, Munji-ro, Yuseong-gu, Daejeon 34122

2. KIM, Bong Soo

LG Energy Solution Research Park, 188, Munji-ro, Yuseong-gu, Daejeon 34122

3. HAN, Dong Hyeop

LG Energy Solution Research Park, 188, Munji-ro, Yuseong-gu, Daejeon 34122

Specification

Documents

Application Documents

#	Name	Date
1	202317060477-STATEMENT OF UNDERTAKING (FORM 3) [08-09-2023(online)].pdf	2023-09-08
2	202317060477-PROOF OF RIGHT [08-09-2023(online)].pdf	2023-09-08
3	202317060477-PRIORITY DOCUMENTS [08-09-2023(online)].pdf	2023-09-08
4	202317060477-POWER OF AUTHORITY [08-09-2023(online)].pdf	2023-09-08
5	202317060477-FORM 1 [08-09-2023(online)].pdf	2023-09-08
6	202317060477-DRAWINGS [08-09-2023(online)].pdf	2023-09-08
7	202317060477-DECLARATION OF INVENTORSHIP (FORM 5) [08-09-2023(online)].pdf	2023-09-08
8	202317060477-COMPLETE SPECIFICATION [08-09-2023(online)].pdf	2023-09-08
9	202317060477-FORM 3 [09-02-2024(online)].pdf	2024-02-09
10	202317060477-FORM 18 [27-08-2025(online)].pdf	2025-08-27