High-Rate Aqueous-Based Supercapacitors at -30 oC drived by Novel 1D Ni(OH)2 Nanorods and Two-Solute Electrolyte

Author(s):  
Wutao Wei ◽  
Weihua Chen ◽  
Liwei Mi ◽  
Jiaqiang Xu ◽  
Jiujun Zhang

Extreme application environments, such as the exploration of space and the living in Polar Regions, require the electrochemical energy storage devices to operate well at ultra-low temperatures. Aqueous-based supercapacitors (ASCs)...

Author(s):  
Dhanasekar Kesavan ◽  
Vimal Kumar Mariappan ◽  
Karthikeyan Krishnamoorthy ◽  
Sang-Jae Kim

In this study, we report a facile carbothermal method for the preparation of boron-oxy-carbide (BOC) nanostructures and explore their properties towards electrochemical energy storage devices.


Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4000
Author(s):  
Eunhwan Kim ◽  
Juyeon Han ◽  
Seokgyu Ryu ◽  
Youngkyu Choi ◽  
Jeeyoung Yoo

For decades, improvements in electrolytes and electrodes have driven the development of electrochemical energy storage devices. Generally, electrodes and electrolytes should not be developed separately due to the importance of the interaction at their interface. The energy storage ability and safety of energy storage devices are in fact determined by the arrangement of ions and electrons between the electrode and the electrolyte. In this paper, the physicochemical and electrochemical properties of lithium-ion batteries and supercapacitors using ionic liquids (ILs) as an electrolyte are reviewed. Additionally, the energy storage device ILs developed over the last decade are introduced.


2017 ◽  
Vol 8 (5) ◽  
pp. 1701681 ◽  
Author(s):  
Bei Long ◽  
Muhammad-Sadeeq Balogun ◽  
Lei Luo ◽  
Weitao Qiu ◽  
Yang Luo ◽  
...  

2017 ◽  
Vol 4 (16) ◽  
pp. 1700279 ◽  
Author(s):  
Jia Yu ◽  
Chao Mu ◽  
Xinyu Qin ◽  
Chao Shen ◽  
Bingyi Yan ◽  
...  

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