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In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...
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Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
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Constructing Solid Electrolyte Interphase for Aqueous Zinc Batteries.

Yating Li1, Zuhao Yu1, Jianhang Huang1

  • 1Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua, 321004, China.

Angewandte Chemie (International Ed. in English)
|August 19, 2023
PubMed
Summary
This summary is machine-generated.

This review details constructing solid electrolyte interphase (SEI) for aqueous zinc batteries, addressing dendrite issues. It analyzes SEI formation mechanisms and components to enhance zinc anode performance and stability.

Keywords:
Battery ElectrolyteSEI AdditivesSolid Electrolyte InterphaseZinc Battery

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Area of Science:

  • Electrochemistry
  • Materials Science
  • Energy Storage

Background:

  • Zinc batteries face performance degradation from dendrite growth and hydrogen evolution.
  • Solid electrolyte interphase (SEI) is crucial for high reversibility in lithium batteries and beneficial for aqueous zinc anodes.
  • Current research on zinc electrode interphases is fragmented, lacking a deep understanding of SEI construction principles.

Purpose of the Study:

  • To systematically review and analyze approaches for constructing SEI in aqueous electrolytes for zinc batteries.
  • To elucidate the formation mechanisms, components, and electrochemical performance impacts of various SEI types on zinc anodes.
  • To discuss challenges in scaling up SEI construction from laboratory to industrial applications.

Main Methods:

  • Comprehensive literature review of zinc battery development and SEI construction strategies.
  • Systematic analysis of SEI formation mechanisms in aqueous electrolytes.
  • Evaluation of electrochemical performance of zinc anodes with different SEI configurations.

Main Results:

  • Summarized various methods for SEI construction in aqueous electrolytes.
  • Analyzed the formation mechanisms and components of different SEI layers.
  • Evaluated the impact of SEI on the electrochemical performance of zinc anodes.

Conclusions:

  • Effective SEI construction is vital for overcoming challenges like dendrite formation in aqueous zinc batteries.
  • Understanding SEI formation mechanisms and components provides general design rules for improved zinc anode performance.
  • Bridging the gap between laboratory findings and industrialization remains a key challenge for practical zinc battery application.