Observation of combination displacement/intercalation reaction in aqueous zinc-ion battery
By Lutong Shan, Yongqiang Yang, Wanying Zhang, Huijie Chen, Guozhao Fang, Jiang Zhou, S. Liang. Energy Storage Materials, 2018
175 citations recorded by the source corpus.
Abstract Rechargeable aqueous Zinc-ion batteries (ZIBs) are regarded as the promising battery chemistry in stationary grid energy storage applications. Exploration of new zinc storage mechanism concepts is a feasible way to achieve high energy/power density. Herein, for the first time, we demonstrate the combination displacement/intercalation (CDI) reaction mechanism in aqueous ZIBs, as an example in Zn/Ag0.4V2O5 system. Unlike the classical intercalation/deintercalation storage mechanism, the CDI reaction mechanism enables more Zn2+ ions insertion into the host structure in two different sites, i.e. most of Ag+ in Ag0.4V2O5 replaced by Zn2+, and classical intercalation of Zn2+ in Ag0.4V2O5 and Zn2(V3O8)2. Importantly, the in-situ generation of highly conductive Ag0 matrix within the electrode provides high electronic conductivity. As a result, the Ag0.4V2O5 cathode performs excellent rate capability as well as long-term cycling performance (stable capacity of 144 mA h g−1 after 4000 cycles at 20 A g−1).
Subfields: Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials
View Paper: https://www.semanticscholar.org/paper/34c3713182b42f7e147f2ba041265112ca2cf72c
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Citations in the corpus
- Structural engineering of hydrated vanadium oxide cathode by K+ incorporation for high-capacity and long-cycling aqueous zinc ion batteries (2020, background): “Researchers mainly focus on introducing water molecules or metal cations into vanadium oxides to achieve larger interlayer spacing for fast ion transfer and better electrochemical stability [24,25].”