Multivalent metal ion hybrid capacitors: a review with a focus on zinc-ion hybrid capacitors

Dong, Liubing; Yang, Wang; Yang, Wu; Li, Yang; Wu, Wenjian; Wang, Guoxiu

doi:10.1039/c9ta02678a

Cited by 354 publications

(220 citation statements)

References 332 publications

Supporting

Mentioning

218

Contrasting

Order By: Relevance

“…Different from the ion insertion/extraction or conversion mechanism of MBs, MSCs store the energy by fast surface reactions, arising much attention due to high power density, long‐term cyclability and superior rate capability, but suffer from relatively inferior energy density 24,97 . To combine the unique strengths of MBs and MSCs into one device, the hybrid ion MSCs have emerged as a highly competitive class of MESDs with high energy density and satisfactory power density, assembled by a capacitive electrode as power source and a battery‐type electrode as energy source.…”

Section: Zinc Ion Microsupercapacitorsmentioning

confidence: 99%

Zinc based micro‐electrochemical energy storage devices: Present status and future perspective

Wang

2020

EcoMat

View full text Add to dashboard Cite

In order to keep rapid pace with increasing demand of wearable and miniature electronics, zinc‐based microelectrochemical energy storage devices (MESDs), as a promising candidate, have gained increasing attention attributed to low cost, environmental benign, and high performance. Herein, this review summarizes the state‐of‐the‐art advances of zinc‐based MESDs in microbatteries (MBs) and microsupercapacitors and highlights merits of cost effectiveness and high performance for miniaturized smart integrated systems. First, an introduction is given to present importance of zinc‐based MESDs. Second, current status with representative fiber, in‐plane and sandwiched configurations are illustrated in detail, particularly with a focus on the reasonable construction of multifunctional MBs and microsupercapacitors and deep understanding of energy storage mechanisms. Then, achievements for smart systems are overviewed to highlight environmental adaptability, integratable properties, and scalability in targeting applications. Finally, critical perspectives and challenges on the synergistic optimization of whole device are discussed to demonstrate forward‐looking developmental directions of zinc‐based MESDs.

show abstract

Section: Zinc Ion Microsupercapacitorsmentioning

confidence: 99%

Zinc based micro‐electrochemical energy storage devices: Present status and future perspective

Wang

2020

EcoMat

View full text Add to dashboard Cite

show abstract

“…In order to resolve low volumetric capacitance issue, the approach of liquid‐mediated dense integration of 2D graphenes has been employed, demonstrating four‐fold increase in volumetric capacitance . In addition to the modification of electrode materials, multivalent ion carriers such as Mg, Al, and Zn ions have been accommodated to improve the specific capacitance . However, the charge storage kinetics became sluggish due to slow diffusion and high activation energy, as well as the charge storage efficiency was lowered due to irreversible reactions .…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Activation of 2D MXene‐Based Hybrid for High Volumetric Mg‐Ion Storage Capacitance

Jung

Gund

Gogotsi

et al. 2020

Batteries & Supercaps

View full text Add to dashboard Cite

Electrochemical capacitors are considered as a strong candidate of energy storage device due to their high power density and long cycle lifetime. However, commercial carbon‐based electrochemical capacitors provide only about 60 F cm−3 of volumetric capacitance due to low packing density and intrinsic areal capacitance. Two‐dimensional (2D) transition metal carbides/nitrides, known as MXenes, have received attention due to their high electronic conductivity, surface modification, and abilities to achieve superior ion intercalation and packing density. Here, we report the improved volumetric Mg‐ion storage capacitance of 2D MXene/reduced graphene oxide (rGO) hybrid through electrochemical activation. Along with high volumetric capacitance of 439 F cm−3 at 2 mV s−1, MXene/rGO hybrid electrode exhibits superior capacitive retention of 87 % after 10,000 cycles in aqueous Mg‐ion system. Thus, our hybrid electrode and electrochemical activation approach opens new avenues to store Mg and other multivalent ions for high volumetric capacitance of electrochemical capacitors.

show abstract

“…Recently, multivalention (e.g., Zn 2+ , Ca 2+ , Mg 2+ , and Al 3+ ) storage systems have emerged and exhibited unique electrochemical behaviors [1][2][3][4][5][6]. During various multivalent-ion storage systems, zinc metal anode-based aqueous rechargeable zinc-ion batteries (ZIBs) and zinc-ion hybrid capacitors (ZICs) are particularly attractive [1,[7][8][9][10][11], due to their high safety, low cost, abundant natural resource of zinc, and unique electrochemical features of zinc metal anodes such as low redox potential of − 0.76 V (vs. standard hydrogen electrode) and ultrahigh volumetric capacity of 5845 Ah L −1 . Furthermore, the high ionic conductivity of aqueous electrolytes such as ZnSO 4 solutions in ZIBs and ZICs is beneficial for achieving high power output.…”

Section: Introductionmentioning

confidence: 99%

High-Power and Ultralong-Life Aqueous Zinc-Ion Hybrid Capacitors Based on Pseudocapacitive Charge Storage

et al. 2019

Self Cite

View full text Add to dashboard Cite

HIGHLIGHTS • This work starts the research of pseudocapacitive oxide materials for multivalent Zn 2+ storage. • The constructed RuO 2 •H 2 O||Zn systems exhibit outstanding electrochemical performance, including a high discharge capacity, ultrafast charge/discharge capability, and excellent cycling stability. • The redox pseudocapacitive behavior of RuO 2 •H 2 O for Zn 2+ storage is revealed.

show abstract

Multivalent metal ion hybrid capacitors: a review with a focus on zinc-ion hybrid capacitors

Abstract: Multivalent metal ion hybrid capacitors are overviewed from the angle of design concept, configuration, electrochemical behavior and energy storage mechanism.

Cited by 354 publications

References 332 publications

Zinc based micro‐electrochemical energy storage devices: Present status and future perspective

Zinc based micro‐electrochemical energy storage devices: Present status and future perspective

Electrochemical Activation of 2D MXene‐Based Hybrid for High Volumetric Mg‐Ion Storage Capacitance

High-Power and Ultralong-Life Aqueous Zinc-Ion Hybrid Capacitors Based on Pseudocapacitive Charge Storage

Contact Info

Product

Resources

About