Device And Method For Estimating Impedance Spectrum Of Battery, And

Device And Method For Estimating Impedance Spectrum Of Battery, And System Comprising Same

Abstract: Embodiments and experimental examples of the present invention relate to a device and method for estimating the impedance spectrum of a battery, and a system comprising same. The device for estimating the impedance spectrum of a battery estimates a battery impedance spectrum value in cell units by obtaining measurement values from an electrochemical impedance spectroscope (EIS) for measuring the impedance spectrum value of a battery assembly in pack or module units and a battery charging/discharging measurement device for measuring the particular parameter value due to charging or discharging by applying a pulse current to a battery assembly in pack or module units. Therefore, a highly efficient and low-cost device for estimating the impedance spectrum of a battery may be provided, the device enabling non-destructive measurement without disassembly of a battery into cell units, thereby facilitating reassembly and reducing cost.

Patent Information

Application #

Filing Date

02 November 2023

Publication Number

37/2024

Publication Type

INA

Invention Field

ELECTRONICS

Status

Email

Parent Application

Applicants

LG ENERGY SOLUTION, LTD.

Tower1 108, Yeoui-daero Yeongdeungpo-gu Seoul 07335

Inventors

1. KIM, Younghwan

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

2. KIM, Jeong Wan

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

Specification

Documents

Application Documents

#	Name	Date
1	202317074722-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [02-11-2023(online)].pdf	2023-11-02
2	202317074722-STATEMENT OF UNDERTAKING (FORM 3) [02-11-2023(online)].pdf	2023-11-02
3	202317074722-PROOF OF RIGHT [02-11-2023(online)].pdf	2023-11-02
4	202317074722-PRIORITY DOCUMENTS [02-11-2023(online)].pdf	2023-11-02
5	202317074722-POWER OF AUTHORITY [02-11-2023(online)].pdf	2023-11-02
6	202317074722-FORM 1 [02-11-2023(online)].pdf	2023-11-02
7	202317074722-FIGURE OF ABSTRACT [02-11-2023(online)].pdf	2023-11-02
8	202317074722-DRAWINGS [02-11-2023(online)].pdf	2023-11-02
9	202317074722-DECLARATION OF INVENTORSHIP (FORM 5) [02-11-2023(online)].pdf	2023-11-02
10	202317074722-COMPLETE SPECIFICATION [02-11-2023(online)].pdf	2023-11-02
11	202317074722-FORM 3 [04-03-2024(online)].pdf	2024-03-04
12	202317074722-FORM 18 [19-03-2025(online)].pdf	2025-03-19