US 2023/0273263 A1 · Battery Diagnosing Apparatus, Method and System

Abstract

A battery diagnosis apparatus includes: an ohmic resistance determining unit configured to determine an ohmic resistance of a battery cell in each of a plurality of impedance profiles generated at different time points for the battery cell, a resistance change rate calculating unit configured to calculate a resistance change rate between the plurality of determined ohmic resistances, a gas generation level determining unit configured to determine an internal gas generation level of the battery cell based on the calculated resistance change rate, and a state diagnosing unit configured to diagnose a state of the battery cell according to the determined internal gas generation level.

Claims12

Dependent claims

A battery diagnosis apparatus, comprising:

memory having programmed thereon instructions that, when executed by the controller, cause the battery diagnosis apparatus to:
calculate a resistance change rate between ohmic resistances of the battery cell at different times, wherein the ohmic resistances are determined from respective impedance profiles of the battery generated at the different times;
determine an internal gas generation level of the battery cell based on the calculated resistance change rate;
and
diagnose a state of the battery cell according to the determined internal gas generation level.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/924,244Filed 29 Sep 2021

Priority

KR 10-2020-012728929 Sep 2020

Published

31 Aug 2023

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

G01R 31/389
Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of…
G01R 31/388
Determining ampere-hour charge capacity or SoC: involving voltage measurements
G01R 31/392
Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of…
H01M 10/486
Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte:…

Battery Diagnosing Apparatus, Method and System

Life of this patent

Battery Diagnosing Apparatus, Method and System

Life of this patent

Abstract

Claims12