Secondary battery analysis method, secondary battery analysis program, and secondary battery manufacturing method

A method and program analyze secondary battery gas composition to classify deterioration causes and select recyclable components, enhancing recycling efficiency.

JP7725711B2Active Publication Date: 2025-08-19MAXELL LTD
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Patent Information

Application Number
JP2024510160
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2022-03-22
Filing Date
2023-03-20
Publication Date
2025-08-19
Estimated Expiration
2043-03-20

AI Technical Summary

Technical Problem

Existing methods for evaluating secondary batteries, such as lithium-ion batteries, fail to analyze the factors behind deterioration, requiring disassembly for component inspection.

Method used

A method and program that analyze secondary batteries by dividing gas components into groups and determining their ratios, allowing classification of battery deterioration and recyclability based on gas composition data.

Benefits of technology

Enables easy identification of deterioration factors and selection of recyclable components for secondary battery assembly, facilitating efficient recycling.

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Abstract

Provided is an analysis method for a secondary battery with which a deterioration factor and the like of a used secondary battery can be easily analyzed. The analysis method for a secondary battery is for analyzing a used secondary battery on the basis of data on the composition of gas sampled from inside the used secondary battery, and comprises a step for separating components of the gas into a plurality of groups and obtaining a ratio of the amount of each of the plurality of groups to the total amount of the components to be taken into consideration and a classification step for classifying the used secondary battery on the basis of the ratio.
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Citation Information

Patent Citations

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