4.6 Article

Ni coated Ti1.4V0.6Ni composite as the negative electrode in Ni-MH battery

Journal

MATERIALS LETTERS
Volume 161, Issue -, Pages 686-689

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2015.09.081

Keywords

Amorphous materials; Corrosion; Deposition; Electrical properties

Funding

  1. National Natural Science Foundation of China [21373198, 21221061]
  2. Science and Technology Support Project of Jilin Province [20140325003GX]
  3. Natural Science Foundation of Jiangsu Province of China [BK20141174]
  4. Changzhou Natural Science Fund [cj20140016]

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Ti1.4V0.6Ni composite is synthesized by arc-melting and subsequent melt-spinning techniques. An improved electrochemical stability of Ti14V0.6Ni composite is obtained by chemical plating Ni. The phase structures of the composite contain icosahedral quasicrystal phase (i-phase) and TiNi-type phase. Different amount of Ni is coated on the surface of the composite particles. When Ti14V0.6Ni is plated with 19 wt% Ni, the discharge capacity retention ratio is promoted. Ni coating layer inhibits the dissolution of V from the composite and also promotes the high rate discharge property. (C) 2015 Elsevier B.V. All rights reserved.

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