scholarly journals Hard Carbon Composite Electrodes for Sodium‐Ion Batteries with Nano‐Zeolite and Carbon Black Additives

2020 ◽  
Vol 4 (1) ◽  
pp. 163-172
Author(s):  
Daniela Ledwoch ◽  
James B. Robinson ◽  
Dominika Gastol ◽  
Katherine Smith ◽  
Paul R. Shearing ◽  
...  
2019 ◽  
Vol 29 (18) ◽  
pp. 1900790 ◽  
Author(s):  
Thangavelu Palaniselvam ◽  
Mustafa Goktas ◽  
Bihag Anothumakkool ◽  
Ya‐Nan Sun ◽  
Richard Schmuch ◽  
...  

2021 ◽  
pp. 100754
Author(s):  
Huangxu Li ◽  
Wei Zhang ◽  
Zexun Han ◽  
Kena Sun ◽  
Chunhui Gao ◽  
...  

2020 ◽  
Vol 354 ◽  
pp. 136647 ◽  
Author(s):  
Zoia V. Bobyleva ◽  
Oleg A. Drozhzhin ◽  
Kirill A. Dosaev ◽  
Azusa Kamiyama ◽  
Sergey V. Ryazantsev ◽  
...  

2015 ◽  
Vol 180 ◽  
pp. 22-28 ◽  
Author(s):  
Mohammed A. Ajeel ◽  
Mohamed Kheireddine Aroua ◽  
Wan Mohd Ashri Wan Daud

2021 ◽  
Author(s):  
Le Anh Ma ◽  
Alexander Buckel ◽  
Leif Nyholm ◽  
Reza Younesi

Abstract Knowledge about capacity losses due to the formation and dissolution of the solid electrolyte interphase (SEI) layer in sodium-ion batteries (SIBs) is still limited. One major challenge in SIBs is the fact that the SEI generally contains more soluble species than the corresponding SEI layers formed in Li-ion batteries. By cycling carbon black electrodes against Na-metal electrodes, to mimic the SEI formation on negative SIB electrodes, this study studies the associated capacity losses in different carbonate electrolyte systems. Using electrochemical testing and synchrotron-based X-ray photoelectron (XPS) experiments, the capacity losses due to changes in the SEI layer and diffusion of sodium in the carbon black electrodes during open circuit pauses of 50 h, 30 h, 15 h and 5 h are investigated in nine different electrolyte systems. The different contributions to the open circuit capacity loss were determined using a new approach involving different galvanostatic cycling protocols. It is shown that the capacity loss depends on the interplay between the electrolyte chemistry and the thickness and stability of the SEI layer. The results show, that the Na-diffusion into the bulk electrode gives rise to a larger capacity loss than the SEI dissolution. Hence, Na-trapping effect is one of the major contribution in the observed capacity losses. Furthermore, the SEI formed in NaPF6-EC:DEC was found to become slightly thicker during 50 h pause, due to self-diffused deintercalation of Na from the carbon black structure coupled by further electrolyte reduction. On the other hand, the SEI in NaTFSI with the same solvent goes into dissolution during pause. The highest SEI dissolution rate and capacity loss was observed in NaPF6-EC:DEC (0.57 μAh/hpause) and the lowest in NaTFSI-EC:DME (0.15 μAh/hpause).


2021 ◽  
Vol 1044 ◽  
pp. 25-39
Author(s):  
Hafid Khusyaeri ◽  
Dewi Pratiwi ◽  
Haris Ade Kurniawan ◽  
Anisa Raditya Nurohmah ◽  
Cornelius Satria Yudha ◽  
...  

The battery is a storage medium for electrical energy for electronic devices developed effectively and efficiently. Sodium ion battery provide large-scale energy storage systems attributed to the natural existence of the sodium element on earth. The relatively inexpensive production costs and abundant sodium resources in nature make sodium ion batteries attractive to research. Currently, sodium ion batteries electrochemical performance is still less than lithium-ion batteries. The electrochemical performance of a sodium ion battery depends on the type of electrode material used in the manufacture of the batteries.. The main problem is to find a suitable electrode material with a high specific capacity and is stable. It is a struggle to increase the performance of sodium ion batteries. This literature study studied how to prepare high-performance sodium battery anodes through salt doping. The doping method is chosen to increase conductivity and electron transfer. Besides, this method still takes into account the factors of production costs and safety. The abundant coffee waste biomass in Indonesia was chosen as a precursor to preparing a sodium ion battery hard carbon anode to overcome environmental problems and increase the economic value of coffee grounds waste. Utilization of coffee grounds waste as hard carbon is an innovative solution to the accumulation of biomass waste and supports environmentally friendly renewable energy sources in Indonesia.


2018 ◽  
Vol 408 ◽  
pp. 82-90 ◽  
Author(s):  
Yilan Wu ◽  
Xin Fan ◽  
Rohit Ranaganathan Gaddam ◽  
Qinglan Zhao ◽  
Dongfang Yang ◽  
...  

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