scholarly journals Rational design and kinetics study of flexible sodium-ion full batteries based on binder-free composite film electrodes

2019 ◽  
Vol 7 (16) ◽  
pp. 9890-9902 ◽  
Author(s):  
Keliang Zhang ◽  
Xudong Zhang ◽  
Wen He ◽  
Wangning Xu ◽  
Guogang Xu ◽  
...  

Flexible sodium-ion full batteries were rationally designed by using hard carbon fibers from carbonized filter paper as a conductive supporting framework.

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Zongling Ren ◽  
Jie Wen ◽  
Wei Liu ◽  
Xiaoping Jiang ◽  
Yanheng Dong ◽  
...  

Abstract Generally, the practical capacity of an electrode should include the weight of non-active components such as current collector, polymer binder, and conductive additives, which were as high as 70 wt% in current reported works, seriously limiting the practical capacity. This work pioneered the usage of ultralight reduced graphene fiber (rGF) fabrics as conductive scaffolds, aiming to reduce the weight of non-active components and enhance the practical capacity. Ultrathin SnS2 nanosheets/rGF hybrids were prepared and used as binder-free electrodes of sodium-ion batteries (SIBs). The interfused graphene fibers endow the electrode a porous, continuous, and conductive network. The in situ phase transformation from SnO2 to SnS2 could preserve the strong interfacial interactions between SnS2 and graphene. Benefitting from these, the designed binder-free electrode delivers a high specific capacity of 500 mAh g−1 after 500 cycles at a current rate of 0.5 A g−1 with almost 100% Coulombic efficiency. Furthermore, the weight percentage of SnS2 in the whole electrode could reach up to 67.2 wt%, much higher than that of common electrode configurations using Cu foil, Al foil, or carbon cloth, significantly highlighting the ultralight characters and advantages of the rGF fabrics for using as binder-free electrodes of SIBs.


JOM ◽  
2016 ◽  
Vol 68 (10) ◽  
pp. 2579-2584 ◽  
Author(s):  
Xiaoming Zhu ◽  
Qian Li ◽  
Shen Qiu ◽  
Xiaoling Liu ◽  
Lifen Xiao ◽  
...  

2018 ◽  
Vol 33 (12) ◽  
pp. 810-814 ◽  
Author(s):  
Xueping Gao ◽  
Yongling An ◽  
Wenshu Zhang ◽  
Menglan Yu ◽  
Lijie Ci ◽  
...  

2019 ◽  
Vol 2 (2) ◽  
pp. 1185-1191 ◽  
Author(s):  
Jaewon Choi ◽  
Min Eui Lee ◽  
Sungho Lee ◽  
Hyoung-Joon Jin ◽  
Young Soo Yun

2019 ◽  
Vol 777 ◽  
pp. 127-134 ◽  
Author(s):  
Yujie Chen ◽  
Xietao Yuan ◽  
Cheng Yang ◽  
Yuebin Lian ◽  
Amir Abdul Razzaq ◽  
...  

2020 ◽  
Vol 8 (11) ◽  
pp. 5558-5571 ◽  
Author(s):  
Adrian Beda ◽  
Claire Villevieille ◽  
Pierre-Louis Taberna ◽  
Patrice Simon ◽  
Camélia Matei Ghimbeu

Binder-free self-supported hard carbon electrodes derived from biopolymer filter papers impregnated with phenolic resin were designed to study Na storage mechanisms. Experimental evidence of Na intercalation in the low voltage plateau was found.


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