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Royal Society of Chemistry, Chemical Communications, 49(51), p. 9983-9986, 2015

DOI: 10.1039/c5cc01767j

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Alternating assembly of Ni–Al layered double hydroxide and graphene for high-rate alkaline battery cathode

Journal article published in 2015 by Junyan Hu, Gang Lei, Zhouguang Lu, Kaiyu Liu, Shangbin Sang, Hongtao Liu ORCID
This paper is available in a repository.
This paper is available in a repository.

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Abstract

With continuous development of electrochemical energy storage technologies, electrode materials play increasingly important roles in promoting batteries capability. It is very desirable to construct novel materials in enhancing high-rate performance because serious energy attenuation with charge-discharge cycles under high current density has being become the bottleneck of secondary battery technology. We develop a Ni-Al LDH/graphene superlattice composite which is constructed via the electrostatic self-assembly of the delaminated positively charged Ni-Al LDH platelets and the exfoliated negatively charged graphene. The Ni-Al LDH/graphene superlattice composite exhibits excellent rate performance that retains both high capacity and steady cycle life at large charge-discharge current, and is supposed to serve as a promising high-rate battery cathode.