Graphene fiber-based asymmetric micro-supercapacitors

2014 ◽  
Vol 2 (25) ◽  
pp. 9736-9743 ◽  
Author(s):  
Bingna Zheng ◽  
Tieqi Huang ◽  
Liang Kou ◽  
Xiaoli Zhao ◽  
Karthikeyan Gopalsamy ◽  
...  

Fiber-based asymmetric micro-supercapacitor (F-asym-mSC) is assembled by core–sheath graphene fiber decorated by MnO2as the positive electrode and graphene-carbon nanotubes hybrid fiber as the negative electrode. The F-asym-mSC shows the highest energy density (11.9 μWh cm−2) for fiber-based supercapacitors and paves the way to high energy density, wearable, and flexible electronic devices.

2014 ◽  
Vol 2 (45) ◽  
pp. 19444-19450 ◽  
Author(s):  
Zheng Chang ◽  
Xujiong Wang ◽  
Yaqiong Yang ◽  
Jie Gao ◽  
Minxia Li ◽  
...  

Li//Br battery, by using aqueous bromide/tribromide redox pair as positive electrode and a coated lithium metal as negative electrode, exhibits high energy density and good cycling.


Author(s):  
Cheng Wang ◽  
Xin Zeng ◽  
Patrick Cullen ◽  
Zengxia Pei

The advent of flexible electronic devices has raised urgent demand for compatible flexible power sources. Zinc-ion hybrid capacitors (ZIHCs) combine the complementary advantages of zinc-ion batteries for high energy density...


2018 ◽  
Vol 6 (3) ◽  
pp. 735-753 ◽  
Author(s):  
Yanghua He ◽  
Bryan Matthews ◽  
Jingyun Wang ◽  
Li Song ◽  
Xiaoxia Wang ◽  
...  

Due to the emergence of numerous flexible electronic devices, the design and fabrication of flexible rechargeable batteries with high energy density have attracted great attention.


2018 ◽  
Vol 47 (23) ◽  
pp. 7747-7753 ◽  
Author(s):  
Qiufan Wang ◽  
Xiao Liang ◽  
Yun Ma ◽  
Daohong Zhang

A novel type of asymmetric supercapacitor was fabricated by assembling a RuO2 positive electrode and a Fe2O3 negative electrode. Full cells are constructed and show a high capacitance of 4.9 F cm−3, a high energy density of 1.5 mW h cm−3 and a high power density of 9.1 mW cm−3.


2020 ◽  
Vol 49 (10) ◽  
pp. 3353-3364 ◽  
Author(s):  
Akbar Mohammadi Zardkhoshoui ◽  
Saied Saeed Hosseiny Davarani

A facile method is introduced to synthesise yolk-shell Cu–Co–P hollow nanospheres as a promising positive electrode and CuFeS2 nanosheet arrays as a new negative electrode to enhance the energy density of asymmetric devices.


2020 ◽  
Vol 8 (45) ◽  
pp. 24040-24052
Author(s):  
Bobby Singh Soram ◽  
Jiu Yi Dai ◽  
Ibomcha Singh Thangjam ◽  
Nam Hoon Kim ◽  
Joong Hee Lee

One-step electrodeposited MoS2@Ni-mesh as a high-performance negative electrode; a high energy density flexible and transparent asymmetric solid-state supercapacitor is fabricated.


2020 ◽  
Vol 8 (6) ◽  
pp. 2000146 ◽  
Author(s):  
Filipp Napolskiy ◽  
Mikhail Avdeev ◽  
Meir Yerdauletov ◽  
Oleksandr Ivankov ◽  
Svetlana Bocharova ◽  
...  

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