Engineering of battery type electrode for high performance lithium ion hybrid supercapacitor

2021 ◽  
Author(s):  
Jasmin Shamshoddin Shaikh ◽  
Pongsakorn Kanjanaboos ◽  
Supareak Praserthdam ◽  
Vaibhav C. Lokhande ◽  
Chandrakant D. Lokhande ◽  
...  
2015 ◽  
Vol 112 (14) ◽  
pp. 4233-4238 ◽  
Author(s):  
Maher F. El-Kady ◽  
Melanie Ihns ◽  
Mengping Li ◽  
Jee Youn Hwang ◽  
Mir F. Mousavi ◽  
...  

Supercapacitors now play an important role in the progress of hybrid and electric vehicles, consumer electronics, and military and space applications. There is a growing demand in developing hybrid supercapacitor systems to overcome the energy density limitations of the current generation of carbon-based supercapacitors. Here, we demonstrate 3D high-performance hybrid supercapacitors and microsupercapacitors based on graphene and MnO2 by rationally designing the electrode microstructure and combining active materials with electrolytes that operate at high voltages. This results in hybrid electrodes with ultrahigh volumetric capacitance of over 1,100 F/cm3. This corresponds to a specific capacitance of the constituent MnO2 of 1,145 F/g, which is close to the theoretical value of 1,380 F/g. The energy density of the full device varies between 22 and 42 Wh/l depending on the device configuration, which is superior to those of commercially available double-layer supercapacitors, pseudocapacitors, lithium-ion capacitors, and hybrid supercapacitors tested under the same conditions and is comparable to that of lead acid batteries. These hybrid supercapacitors use aqueous electrolytes and are assembled in air without the need for expensive “dry rooms” required for building today’s supercapacitors. Furthermore, we demonstrate a simple technique for the fabrication of supercapacitor arrays for high-voltage applications. These arrays can be integrated with solar cells for efficient energy harvesting and storage systems.


2013 ◽  
Vol 28 (9) ◽  
pp. 943-948 ◽  
Author(s):  
Chang-Chuan SHI ◽  
Xue-Lin YANG ◽  
Lu-Lu ZHANG ◽  
Yong-Tao ZHOU ◽  
Zhao-Yin WEN

2020 ◽  
Vol 7 (19) ◽  
pp. 4038-4046
Author(s):  
Ruili Zhang ◽  
Xuehong Li ◽  
Liping Ni ◽  
Anjian Xie ◽  
Panpan Li ◽  
...  

2019 ◽  
Vol 374 ◽  
pp. 937-946 ◽  
Author(s):  
Yu Yuan ◽  
Haoxiang Yu ◽  
Xing Cheng ◽  
Runtian Zheng ◽  
Tingting Liu ◽  
...  

Author(s):  
Thomas F Fässler ◽  
Stefan Strangmüller ◽  
Henrik Eickkhoff ◽  
Wilhelm Klein ◽  
Gabriele Raudaschl-Sieber ◽  
...  

The increasing demand for a high-performance and low-cost battery technology promotes the search for Li+-conducting materials. Recently, phosphidotetrelates and aluminates were introduced as an innovative class of phosphide-based Li+-conducting materials...


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