Deep Eutectic Solvents for Boosting Electrochemical Energy Storage and Conversion: A Review and Perspective

Junxiong Wu, Qinghua Liang, Xiaoliang Yu, Qiufeng Lv, Lianbo Ma, Xianying Qin, Guohua Chen, Baohua Li

Research output: Journal article publicationReview articleAcademic researchpeer-review

193 Citations (Scopus)


The pursuit of sustainable energy utilization arouses increasing interest in efficiently producing durable battery materials and catalysts with minimum environmental impact. As green, safe, and cheap eutectic mixtures, deep eutectic solvents (DESs) provide tremendous opportunities and open up attractive perspectives as charge transfer and reaction media for electrochemical energy storage and conversion (EESC). In this review, the fundamental properties of DESs are first summarized. Then, the important roles that DESs play in various EESC technologies including advanced electrolytes for batteries/supercapacitors, media for the preparation of electrode materials and catalysts, and extracting agents for battery recycling are systematically reviewed. A particular focus is placed on the fundamental understanding of structure–composition–property–performance relationships. Finally, the challenges for the controllable design of DESs for EESC applications and future developments are presented. This review is expected to shed light on developing advanced DESs for next-generation EESC systems.

Original languageEnglish
Article number2011102
JournalAdvanced Functional Materials
Issue number22
Publication statusPublished - 26 May 2021


  • advanced electrolytes
  • battery recycling
  • deep eutectic solvents
  • energy conversion, energy storage
  • functional nanomaterials

ASJC Scopus subject areas

  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics


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