首页|Water molecules regulation for reversible Zn anode in aqueous zinc ion battery:Mini-review
Water molecules regulation for reversible Zn anode in aqueous zinc ion battery:Mini-review
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With the low cost,excellent safety and high theoretical specific capacity,aqueous zinc-ion batteries(AZ-IBs)are considered as a potential rival for lithium-ion batteries to promote the sustainable development of large-scale energy storage technologies.However,the notorious Zn dendrites and low Coulombic effi-ciency(CE)limit further development of AZIBs,due to the unstable electrochemical deposition/stripping behavior of Zn anode in aqueous zinc ion electrolytes.In this review,critical issues and advances are summarized in electrolyte engineering strategies.These strategies are focused on active water molecules during electrochemical process,including high-concentration electrolytes,ionic liquids,gel-polymer elec-trolytes and functional additives.With suppressed active water molecules,the solvation and de-solvation behavior of Zn2+can be regulated,thereby modulating the electrochemical performance of Zn anode.Finally,the inherent problems of these strategies are discussed,and some promising directions are pro-vided on electrolytes engineering for high performance Zn anode in AZIBs.
Electrolyte engineeringAqueous zinc ion batteryZinc metal anodeDendrite suppressionMildly acidic electrolyte
Jie Zhou、Quanyu Li、Xiaomeng Hu、Weifeng Wei、Xiaobo Ji、Guichao Kuang、Liangjun Zhou、Libao Chen、Yuejiao Chen
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State Key Laboratory of Powder Metallurgy,Central South University,Changsha,410083,China
College of Chemistry and Chemical Engineering,Central South University,Changsha 410083,,China
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