Carbon/graphene quantum dots as electrolyte additives for batteries and supercapacitors: A review

Shaker M, Ng SW, Sadeghi Ghazvini AA, Javanmardi S, Gaho MA, Jin Z, Ge Q (2024)

Publication Type: Journal article, Review article

Publication year: 2024

Journal

Journal of Energy Storage Elsevier

Book Volume: 85

Article Number: 111040

DOI: 10.1016/j.est.2024.111040

Abstract

Electrolyte is a crucial component in electrochemical energy storage devices (EESDs) such as rechargeable batteries and supercapacitors (SCs). While a substantial effort has been directed to engineering the electrodes, fewer but effective and continuous efforts have been devoted to improve the devices' performance through the modification of their electrolytes. Among these approaches, the strategic integration of minor amounts of additives has led to the formation of appropriate solid-electrolyte interphase (SEI) and cathode-electrolyte interphase (CEI), as well as modifying the ionic conductivity, preventing dendrite growth, and improving charge storage kinetics. Among various additives in the electrolytes, carbon quantum dots (CDs) and graphene quantum dots (GQDs) have emerged as favorable options due to their positive influence on the electrolytes for EESDs. These QDs are soluble in specific solvents and their numerous functional moieties allow them to act as electrolyte additives and polyanions. Furthermore, their excellent physiochemical properties make them excellent candidates as fillers in solid-state electrolytes. The excellence of these QDs is verified by numerous electrochemical and physiochemical characterization methods affirming their positive influence on various parameters such as ion-diffusion kinetics, capacity, and resistance. The application of CDs and GQDs in the electrolytes of EESDs is new and the ruling mechanisms are not well-known yet. This review article provides an overview of the application of CDs and GQDs in both liquid and solid electrolytes for lithium-, sodium-, potassium-, zinc-ion and lithium metal batteries besides SCs. Herein, we aim to offer valuable insights into designing and fabricating a new class of electrolyte additives based on CDs and GQDs for realizing novel electrolytes for EESDs.

Authors with CRIS profile

Majid Shaker Lehrstuhl für Physikalische Chemie II Siow Woon Ng Juniorprofessur für Physikalische Chemie an Grenzflächen

Additional Organisation(s)

FAU Profilzentrum Licht.Materie.Quantentechnologien (FAU LMQ) Institute Materials for Electronics and Energy Technology (i-MEET)

Involved external institutions

Tarbiat Modares University IR Iran, Islamic Republic of (IR) University of Tehran IR Iran, Islamic Republic of (IR) Tsinghua University CN China (CN) Chongqing 2D Materials Institute CN China (CN)

How to cite

APA:

Shaker, M., Ng, S.W., Sadeghi Ghazvini, A.A., Javanmardi, S., Gaho, M.A., Jin, Z., & Ge, Q. (2024). Carbon/graphene quantum dots as electrolyte additives for batteries and supercapacitors: A review. Journal of Energy Storage, 85. https://dx.doi.org/10.1016/j.est.2024.111040

MLA:

Shaker, Majid, et al. "Carbon/graphene quantum dots as electrolyte additives for batteries and supercapacitors: A review." Journal of Energy Storage 85 (2024).

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