Patent · US Active

Method, computer-implemented tool and battery management system for estimating states of health of batteries storing electrical energy and battery energy storage system

US11733305B2 · kind B2 · utility

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12Claims

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Assignee

Siemens Aktiengesellschaft · DE

Inventors

Joachim Bamberger · Stockdorf, DE
Amer Mesanovic · Hersbruck, DE
Andrei Szabo · Ottobrunn, DE

Key dates

Filing date	Mar 18, 2021
Grant date	Aug 22, 2023
Priority date	—
Expiry date	May 1, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG01R31/392
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

In order to estimate states of health of batteries storing electrical energy significantly indicated by battery capacity and battery internal resistance, by which the estimation of states of health of batteries, deteriorated over time usage, is automated and carried out without a need of any specific test such as a capacity test and the usage of data out of normal operation, it is proposed to collect data from normal operation of a battery storing electrical energy relating to battery-internal physical properties such as a terminal direct current IDC, a terminal direct voltage UDV and a battery cell temperature T due to battery measurements and the determination or estimation, based on this data and a battery model, of a model parameter by solving an optimization-/model parameter estimation-problem and minimizing a difference between the battery model and the battery measurements.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.