Coupling EDLC and Reversible Redox Reaction: Oxygen Functionalized Porous Carbon Nanosheets for Zinc-Ion Hybrid Supercapacitors

2021 ◽  
Author(s):  
Li Wang ◽  
Mingtao Huang ◽  
Jun Huang ◽  
Xiannong Tang ◽  
Longbin Li ◽  
...  
Keyword(s):  
Energy Density ◽  
High Energy ◽  
Zinc Ion ◽  
High Energy Density ◽  
Storage Device ◽  
Device Performance ◽  
Energy Storage Device ◽  
Carbon Nanosheets ◽  
Hybrid Supercapacitors ◽  
Reversible Redox

Zinc-ion hybrid supercapacitors (ZHSCs) are promising next-generation energy storage device owing to their merits of inexpensive, high energy density, high safety, and long cycle lifespan. However, ZHSCs device performance is...

Polyaniline-based carbon nanospheres and redox mediator doped robust gel films lead to high performance foldable solid-state supercapacitors

2017 ◽  
Vol 41 (17) ◽  
pp. 9024-9032 ◽  
Author(s):  
Enke Feng ◽  
Hui Peng ◽  
Zhiguo Zhang ◽  
Jindan Li ◽  
Ziqiang Lei
Keyword(s):  
Energy Storage ◽  
Solid State ◽  
Energy Density ◽  
High Performance ◽  
High Energy ◽  
High Energy Density ◽  
Storage Device ◽  
Energy Storage Device ◽  
Carbon Nanospheres ◽  
Device Applications

As-fabricated foldable solid-state supercapacitors are suitable for highly fold-tolerant high-energy-density energy storage device applications.

Vertical bismuth oxide nanosheets with enhanced crystallinity: promising stable anodes for rechargeable alkaline batteries

2017 ◽  
Vol 5 (48) ◽  
pp. 25539-25544 ◽  
Author(s):  
Haibing Zheng ◽  
Haodong Li ◽  
Minghao Yu ◽  
Min Zhang ◽  
Yexiang Tong ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Storage Device ◽  
Great Promise ◽  
Energy Storage Device ◽  
Alkaline Batteries ◽  
Rechargeable Alkaline Batteries ◽  
Enhanced Crystallinity

Aqueous alkaline batteries represent an emerging kind of energy storage device, which hold great promise to power electronics with both high energy density and power density.

A double-chamber energy storage device with dual ionic electrolyte enabling high energy density

2018 ◽  
Vol 274 ◽  
pp. 31-39 ◽  
Author(s):  
Fen Guo ◽  
Yiju Li ◽  
Dianxue Cao ◽  
Baoan Fan ◽  
Yi Liu ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Storage Device ◽  
Energy Storage Device ◽  
Double Chamber

scholarly journals Continuous Fabrication of Ti3C2Tx MXene-Based Braided Coaxial Zinc-Ion Hybrid Supercapacitors with Improved Performance

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Bao Shi ◽  
La Li ◽  
Aibing Chen ◽  
Tien-Chien Jen ◽  
Xinying Liu ◽  
...  
Keyword(s):  
Energy Density ◽  
High Energy ◽  
Zinc Ion ◽  
High Energy Density ◽  
List Type ◽  
Wearable Electronics ◽  
Hybrid Fiber ◽  
Hybrid Supercapacitors ◽  
Continuous Fabrication ◽  
Led Arrays

Highlights Ti3C2Tx MXene-based coaxial zinc-ion hybrid fiber supercapacitors (FSCs) were fabricated with braided structure, which can be prepared continuously and present excellent flexibility and ultrastability. A sports watch driven by the watch belts which weaved uses the obtained zinc-ion hybrid FSC and LED arrays lighted by the FSCs under embedding into textiles, demonstrating the great potential application in smart wearable textiles. Abstract Zinc-ion hybrid fiber supercapacitors (FSCs) are promising energy storages for wearable electronics owing to their high energy density, good flexibility, and weavability. However, it is still a critical challenge to optimize the structure of the designed FSC to improve energy density and realize the continuous fabrication of super-long FSCs. Herein, we propose a braided coaxial zinc-ion hybrid FSC with several meters of Ti3C2Tx MXene cathode as core electrodes, and shell zinc fiber anode was braided on the surface of the Ti3C2Tx MXene fibers across the solid electrolytes. According to the simulated results using ANSYS Maxwell software, the braided structures revealed a higher capacitance compared to the spring-like structures. The resulting FSCs exhibited a high areal capacitance of 214 mF cm–2, the energy density of 42.8 μWh cm−2 at 5 mV s−1, and excellent cycling stability with 83.58% capacity retention after 5000 cycles. The coaxial FSC was tied several kinds of knots, proving a shape-controllable fiber energy storage. Furthermore, the knitted FSC showed superior stability and weavability, which can be woven into watch belts or embedded into textiles to power smart watches and LED arrays for a few days.

scholarly journals Asymmetric faradaic assembly of Bi2O3 and MnO2 for a high-performance hybrid electrochemical energy storage device

RSC Advances ◽  
2019 ◽  
Vol 9 (55) ◽  
pp. 32154-32164 ◽  
Author(s):  
Saurabh Singh ◽  
Rakesh K. Sahoo ◽  
Nanasaheb M. Shinde ◽  
Je Moon Yun ◽  
Rajaram S. Mane ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Electrochemical Performance ◽  
High Performance ◽  
High Energy ◽  
High Energy Density ◽  
Electrochemical Energy Storage ◽  
Storage Device ◽  
Energy Storage Device ◽  
Electrochemical Energy

A hybrid electrochemical energy storage device assembled with faradaic Bi2O3 and MnO2 electrodes exhibits superior electrochemical performance with a high energy density of 79 W h kg−1 at a power density of 702 W kg−1.

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