Title:
METHOD AND SYSTEM FOR ESTIMATING AN AGEING INDICATOR OF A RECHARGEABLE ELECTRIC BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/200241
Kind Code:
A1
Abstract:
The invention relates to a method (100) for estimating an ageing indicator of an electric battery, comprising at least one iteration of a measuring phase, comprising the following steps: - emitting (102), into said battery, an acoustic wave, called probe wave, comprising at least one frequency component, called representative frequency component, the amplitude of which depends on the ageing of said battery (500); - receiving (104) an acoustic wave, called transmitted wave, corresponding to the portion of said probe wave transmitted by said battery; - determining (107) a value of an ageing indicator of said battery based on: • the amplitude of the at least one representative frequency component in said transmitted wave, and • a previously determined correlation model applicable to said battery and linking said amplitude to said ageing indicator. It also relates to a system implementing such a method and to an electric battery equipped with such a system.
Inventors:
DESCHAMPS MARC (FR)
BODENEZ VINCENT (FR)
GUILLET NICOLAS (FR)
BODENEZ VINCENT (FR)
GUILLET NICOLAS (FR)
Application Number:
PCT/EP2022/057273
Publication Date:
September 29, 2022
Filing Date:
March 21, 2022
Export Citation:
Assignee:
BLUE SOLUTIONS (FR)
COMMISSARIAT ENERGIE ATOMIQUE (FR)
COMMISSARIAT ENERGIE ATOMIQUE (FR)
International Classes:
G01R31/392
Foreign References:
| US20190049518A1 | 2019-02-14 | |||
| US20190072614A1 | 2019-03-07 | |||
| US20180164383A1 | 2018-06-14 | |||
| FR3011336A1 | 2015-04-03 | |||
| CN112526372A | 2021-03-19 | |||
| FR3080458A1 | 2019-10-25 | |||
| US20200106137A1 | 2020-04-02 |
Attorney, Agent or Firm:
IPAZ (FR)
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