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Recycling of used Ni-MH rechargeable batteries

Conference ·
OSTI ID:197242
; ;  [1]
  1. Mitsui Mining and Smelting Co., Ltd., Ageo, Saitama (Japan). Corporate R and D Center

The Ni-MH (nickel metal hydride) rechargeable battery was developed several years ago. Its higher electrochemical capacity and greater safety compared with the Ni-Cd rechargeable battery have resulted in very rapid increase in its production. The Ni-MH rechargeable battery consists of Ni, Co and rare earth metals, so that recycling is important to recover these valuable mineral resources. In this study, a basic recycling process for used Ni-MH rechargeable batteries has been developed, in which the Ni, Co and rare earth elements are recovered through a combination of mechanical processing and hydrometallurgical processing.

OSTI ID:
197242
Report Number(s):
CONF-951105--; ISBN 0-87339-318-X
Country of Publication:
United States
Language:
English

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