Electrochemical Zinc Ion Capacitors: Fundamentals, Materials, and Systems

Jian Yin, Wenli Zhang, Nuha Alhebshi, Numan Salah, Husam N. Alshareef

Research output: Contribution to journalArticlepeer-review

123 Scopus citations

Abstract

An electrochemical zinc ion capacitor (ZIC) is a hybrid supercapacitor composed of a porous carbon cathode and a zinc anode. Based on the low-cost features of carbon and zinc metal, ZIC is a potential candidate for safe, high-power, and low-cost energy storage applications. ZICs have gained tremendous attention in recent years. However, the low energy densities and limited cycling stability are still major challenges for developing high-performance ZICs. First, the energy density of ZIC is limited by the low capacitance of porous carbon cathodes. Second, aqueous electrolytes induce parasitic reactions, which results in limited voltage windows and poor cycling performances of ZICs. Third, the poor stabilities and low utilization of zinc anodes remain major challenges to develop practical ZICs. This review summarizes the recent progress in developing ZICs and highlights both the promising and challenging attributes of this emerging energy storage technology. Future research directions are proposed for developing better, lower cost, and more scalable ZICs for energy storage applications.
Original languageEnglish (US)
Pages (from-to)2100201
JournalAdvanced Energy Materials
DOIs
StatePublished - Apr 22 2021

Bibliographical note

KAUST Repository Item: Exported on 2021-04-26
Acknowledged KAUST grant number(s): OSR-2018 KAUST-KAU-3903
Acknowledgements: J.Y. and W.Z. contributed equally to this work. The research reported in this publication was supported by the King Abdullah University of Science and Technology—King Abdulaziz University (KAUST-KAU) Initiative (Grant # OSR-2018 KAUST-KAU-3903).

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • General Materials Science

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