Title:
BATTERY DIAGNOSTIC DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2022/203367
Kind Code:
A1
Abstract:
A battery diagnostic device according to an embodiment of the present invention comprises: a measurement unit configured to measure the open-circuit voltage of a battery after charging of the battery has been completed, and measure the resistance of the battery while the battery is being discharged for a prescribed time after the charging of the battery has been completed; and a control unit configured to receive voltage information about the open-circuit voltage and resistance information about the resistance from the measurement unit, calculate the voltage deviation between the open-circuit voltage and a reference voltage set in advance for the battery, calculate the resistance deviation between the resistance and a reference resistance set in advance for the battery, and diagnose, on the basis of the voltage deviation and the resistance deviation, whether degradation of the battery has accelerated.
Inventors:
KIM YOUNG-DEOK (KR)
KIM DAE-SOO (KR)
CHOI SOON-JU (KR)
KIM DAE-SOO (KR)
CHOI SOON-JU (KR)
Application Number:
PCT/KR2022/004009
Publication Date:
September 29, 2022
Filing Date:
March 22, 2022
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
G01R31/392; G01R19/10; G01R31/364; G01R31/367; G01R31/382; G01R31/389
Foreign References:
| KR20200111016A | 2020-09-28 | |||
| US20120274281A1 | 2012-11-01 | |||
| KR20150084354A | 2015-07-22 | |||
| KR100911317B1 | 2009-08-11 | |||
| US20030030442A1 | 2003-02-13 | |||
| KR20210039998A | 2021-04-12 |
Other References:
See also references of EP 4152025A4
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
Download PDF:
Previous Patent: LENS DRIVING DEVICE
Next Patent: METHODS AND APPARATUS FOR SWITCHING OF PDCCH MONITORING　CAPABILITY
Next Patent: METHODS AND APPARATUS FOR SWITCHING OF PDCCH MONITORING　CAPABILITY