Structural and electrochemical performance of Al-substituted β-Ni(OH)2 nanosheets electrodes for nickel metal hydride battery.

Highlights: [•] Al-substituted β-Ni(OH)2 were prepared by a simple template-free growth method. [•] The effect of Al contents on the electrochemical performances was investigated. [•] The specific discharge capacity was greatly enhanced by the addition of Al. [Copyright &y& Elsevier]