WASTE BATTERY PROCESSING METHOD, AND RECOVERY METHOD FOR BATTERY COMPONENT

PROBLEM TO BE SOLVED: To provide a processing method for a waste battery capable of effectively recycling a battery component by suppressing contamination of other battery component that is caused by elution of a negative electrode collector or the like and degradation of the battery component inclu...

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Bibliographische Detailangaben
1. Verfasser:	YANO KAZUYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a processing method for a waste battery capable of effectively recycling a battery component by suppressing contamination of other battery component that is caused by elution of a negative electrode collector or the like and degradation of the battery component including an electrode active material, relating to a discharge process of a waste battery before decomposition.SOLUTION: In a waste battery processing method, a voltage between a positive electrode and a negative electrode of a waste battery is controlled so that a negative electrode potential is lower than an elution potential of a collector contained in the negative electrode and/or a metal part connected electrically to the negative electrode, for discharging a part of or the entire remaining electric power in the waste battery. Since a battery component is less degraded, which includes an electrode active material recovered from a decomposed battery, it can be recycled as a battery component for a new battery.