Title:
METHOD AND SYSTEM FOR DETERMINING HEALTH PARAMETER OF A BATTERY
Document Type and Number:
WIPO Patent Application WO/2021/040146
Kind Code:
A1
Abstract:
Provided are a method and system for determining State of Health (SOH) of a battery. The method includes: detecting a charging state of the battery that is being charged by a Constant Current (CC) or a Constant Voltage (CV); adding a low frequency current signal to the CC that is charging the battery to obtain a low frequency charging current, or adding a low frequency voltage signal to the CV, that is charging the battery to obtain a low frequency charging voltage; determining one or more parameters relating to the battery during the charging state of the battery; calculating an internal impedance and Open Circuit Voltage (OCV) values based on the one or more parameters; and determining SOH of the battery based on the calculated internal impedance and the OCV values.
Inventors:
NAHA ARUNAVA (IN)
KHANDELWAL ASHISH (IN)
HARIHARAN KRISHNAN S (IN)
HAN SEONGHO (KR)
KHANDELWAL ASHISH (IN)
HARIHARAN KRISHNAN S (IN)
HAN SEONGHO (KR)
Application Number:
PCT/KR2019/016447
Publication Date:
March 04, 2021
Filing Date:
November 27, 2019
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
G01R31/392; G01R31/367; G01R31/382
Foreign References:
| US20100156356A1 | 2010-06-24 | |||
| US20150153418A1 | 2015-06-04 | |||
| KR20130127792A | 2013-11-25 | |||
| EP1933158A1 | 2008-06-18 | |||
| US20190113577A1 | 2019-04-18 |
Attorney, Agent or Firm:
YOON & LEE INTERNATIONAL PATENT & LAW FIRM (KR)
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