Provided is a method by which the sorting as to whether a spent nonaqueous electrolyte secondary battery with the degraded input/output characteristics can be reused can be realized more accurately by taking into consideration the degradation of the input/output characteristics which is caused by the salt concentration unevenness and liquid shortage in the electrode body. The method for sorting a reusable nonaqueous electrolyte secondary battery, which is disclosed herein, includes: a preparation step of preparing a spent nonaqueous electrolyte secondary battery having a positive electrode and a negative electrode; a high-temperature storage step of storing the prepared nonaqueous electrolyte secondary battery for a predetermined time under a high-temperature condition; and a determination step of determining, on the basis of an internal resistance measured after the high-temperature storage step, whether or not the nonaqueous electrolyte secondary battery which has been stored at a high temperature can be reused.
METHOD FOR SORTING REUSABLE NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
2017-03-02
Patent
Elektronische Ressource
Englisch
IPC: | G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
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