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1. WO2020071848 - METHOD AND APPARATUS FOR DIAGNOSING LOW VOLTAGE OF SECONDARY BATTERY CELL

Publication Number WO/2020/071848
Publication Date 09.04.2020
International Application No. PCT/KR2019/013027
International Filing Date 04.10.2019
IPC
G01R 31/385 2019.01
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge
385Arrangements for measuring battery or accumulator variables
G01R 31/388 2019.01
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge
385Arrangements for measuring battery or accumulator variables
387Determining ampere-hour charge capacity or SoC
388involving voltage measurements
H01M 10/44 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
44Methods for charging or discharging
H01M 4/04 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
04Processes of manufacture in general
H01M 10/42 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
CPC
G01R 31/36
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
G01R 31/385
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
385Arrangements for measuring battery or accumulator variables
G01R 31/388
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
385Arrangements for measuring battery or accumulator variables
387Determining ampere-hour charge capacity or SoC
388involving voltage measurements
H01M 10/42
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 10/44
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
44Methods for charging or discharging
H01M 4/04
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
04Processes of manufacture in general
Applicants
  • 주식회사 엘지화학 LG CHEM, LTD. [KR]/[KR]
Inventors
  • 이용태 LEE, Yong Tae
  • 고명훈 KO, Myung Hoon
  • 김지호 KIM, Jee Ho
  • 강경수 KANG, Gyung Soo
Agents
  • 특허법인 태평양 BAE, KIM & LEE IP GROUP
Priority Data
10-2018-011886605.10.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) METHOD AND APPARATUS FOR DIAGNOSING LOW VOLTAGE OF SECONDARY BATTERY CELL
(FR) PROCÉDÉ ET APPAREIL DE DIAGNOSTIC D'UNE TENSION BASSE D'UNE CELLULE DE BATTERIE SECONDAIRE
(KO) 이차전지 셀의 저전압 진단 방법 및 장치
Abstract
(EN)
The present invention relates to a method and an apparatus for diagnosing a low voltage of a secondary battery cell. A method for diagnosing a low voltage of a secondary battery cell, according to one embodiment of the present invention, comprises the steps of: pre-aging a battery cell; charging the battery cell according to a preset charging condition; measuring a parameter for determining whether the battery cell has a low voltage defect; comparing the measured parameter with a reference parameter; and performing formation when it is determined that the battery cell is normal.
(FR)
La présente invention concerne un procédé et un appareil permettant de diagnostiquer une tension basse d'une cellule de batterie secondaire. Selon un mode de réalisation de la présente invention, un procédé de diagnostic d'une tension basse d'une cellule de batterie secondaire consiste : à pré-vieillir une cellule de batterie ; à charger la cellule de batterie en fonction d'une condition de charge prédéfinie ; à mesurer un paramètre permettant de déterminer si la cellule de batterie présente un défaut de tension basse ; à comparer le paramètre mesuré à un paramètre de référence ; et à réaliser une formation lorsqu'il est déterminé que la cellule de batterie est normale.
(KO)
본 발명은 이차전지 셀의 저전압 진단 방법 및 장치에 관한 것으로, 본 발명의 일 실시예에 따른 이차전지 셀의 저전압 진단 방법은, 전지 셀을 프리에이징하는 단계; 전지 셀을 미리 설정된 충전조건에 따라 충전하는 단계; 전지 셀의 저전압 불량 판정용 파라미터를 측정하는 단계; 측정된 파라미터를 기준 파라미터와 비교하는 단계; 및 전지 셀이 정상이라고 판단시 포메이션을 수행하는 단계를 포함한다.
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