Deterioration state estimation device, deterioration state estimation method, and program

The deterioration state or lifetime of a secondary battery in which the negative electrode does not contain a negative electrode active material can be estimated with high precision by a simple configuration. A deterioration state estimation device according to one embodiment of the present inventio...

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Bibliographic Details
Main Authors OGATA TAKESHI, ARAI JUICHI, IMOTO HIROSHI
Format Patent
LanguageChinese
English
Published 15.03.2024
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:The deterioration state or lifetime of a secondary battery in which the negative electrode does not contain a negative electrode active material can be estimated with high precision by a simple configuration. A deterioration state estimation device according to one embodiment of the present invention comprises: a thickness measurement value acquisition unit that acquires a thickness measurement value, which is a measurement value of the thickness of at least a predetermined portion including a negative electrode of a secondary battery in which a negative electrode active material is not included in the negative electrode; a state-of-charge estimation unit that calculates a charge index estimation value that is an estimation value of a charge index indicating the state of charge of the secondary battery; and a deterioration state estimation unit that estimates a deterioration state of the secondary battery by referring to at least one of post-complete-charge deterioration characteristic information that specif
Bibliography:Application Number: CN202180100575