Recycling of nickel-metal hydride battery scrap

Conference · Fri Dec 30 23:00:00 EST 1994

OSTI ID:418612

Lyman, J W; Palmer, G R ^[1]

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1. Bureau of Mines, Salt Lake City, UT (United States). Salt Lake City Research Center

Nickel-metal hydride (Ni-MH) battery technology is being developed as a NiCd replacement for applications in consumer cells and electric vehicle batteries. The U.S. Bureau of Mines is investigating hydrometallurgical recycling technology that separates and recovers individual components from Ni-MH battery scrap. Acid dissolution and metal recovery techniques such as precipitation and solvent extraction produced purified products of rare-earths, nickel, and other metals associated with AB{sub 2} and AB{sub 5} Ni-MH scrap. Tests were conducted on scrap cells of a single chemistry that had been de-canned to reduce iron content. Although recovery techniques have been identified in principal, their applicability to mixed battery waste stream and economic attractiveness remain to be demonstrated. 14 refs.

• OSTI ID: 418612
• Report Number(s): CONF-941063--
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
MATERIALS RECOVERY
NICKEL
NICKEL-HYDROGEN BATTERIES
RARE EARTHS
RECYCLING
SCRAP METALS
WASTE MANAGEMENT