Determining the age of an electrochemical energy storage unit

Various embodiments include a method for determining the age of an electrochemical energy storage unit comprising: referring to a first open-circuit voltage curve of the electrochemical energy storage unit dependent upon the state of charge of the electrochemical energy storage unit as a reference;...

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Bibliographic Details
Main Authors Betzin, Christopher, Wolfschmidt, Holger
Format Patent
LanguageEnglish
Published 21.09.2021
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:Various embodiments include a method for determining the age of an electrochemical energy storage unit comprising: referring to a first open-circuit voltage curve of the electrochemical energy storage unit dependent upon the state of charge of the electrochemical energy storage unit as a reference; ascertaining a second open-circuit voltage curve of the electrochemical energy storage unit dependent upon the state of charge of the electrochemical energy storage unit; and determining the age of the electrochemical energy storage unit by comparing the first and second open-circuit voltage curves.
Bibliography:Application Number: US201716327184