Lithium-Ion Intercalation by Calcium-Ion Addition in Propylene Carbonate-Trimethyl Phosphate Electrolyte Solution

2018 ◽  
Vol 165 (2) ◽  
pp. A349-A354 ◽  
Author(s):  
Saya Takeuchi ◽  
Tomokazu Fukutsuka ◽  
Kohei Miyazaki ◽  
Takeshi Abe
2020 ◽  
Vol 167 (4) ◽  
pp. 040509 ◽  
Author(s):  
J. Atik ◽  
S. Röser ◽  
R. Wagner ◽  
D. Berghus ◽  
M. Winter ◽  
...  

Carbon ◽  
2021 ◽  
Vol 176 ◽  
pp. 655
Author(s):  
Tomokazu Fukutsuka ◽  
Yuto Miyahara ◽  
Kohei Miyazaki ◽  
Takeshi Abe

2011 ◽  
Vol 115 (11) ◽  
pp. 4959-4965 ◽  
Author(s):  
Dawei Liu ◽  
Yanyi Liu ◽  
Anqiang Pan ◽  
Kenneth P. Nagle ◽  
Gerald T. Seidler ◽  
...  

2018 ◽  
Vol 2018 ◽  
pp. 1-5 ◽  
Author(s):  
Hee-Youb Song ◽  
Soon-Ki Jeong

Interfacial reactions strongly influence the performance of lithium-ion batteries, with the main interfacial reaction between graphite and propylene carbonate- (PC-) based electrolytes corresponding to solvent cointercalation. Herein, the redox reactions of solvated lithium ions occurring at the graphite interface in 1 M·LiClO4/PC were probed by chronopotentiometry, in situ atomic force microscopy (AFM), and in situ Raman spectroscopy. The obtained results revealed that high coulombic efficiency (97.5%) can be achieved at high current density, additionally showing the strong influence of charge capacity on the above redox reactions. Moreover, AFM imaging indicated the occurrence of solvent cointercalation during the first reduction, as reflected by the presence of hills and blisters on the basal plane of highly oriented pyrolytic graphite subjected to the above process.


2005 ◽  
Vol 152 (9) ◽  
pp. A1837 ◽  
Author(s):  
Jyh-Tsung Lee ◽  
Mao-Sung Wu ◽  
Fu-Ming Wang ◽  
Yueh-Wei Lin ◽  
Meng-Yi Bai ◽  
...  

2021 ◽  
Vol 1036 ◽  
pp. 35-44
Author(s):  
Ling Fang Ruan ◽  
Jia Wei Wang ◽  
Shao Ming Ying

Silicon-based anode materials have been widely discussed by researchers because of its high theoretical capacity, abundant resources and low working voltage platform,which has been considered to be the most promising anode materials for lithium-ion batteries. However,there are some problems existing in the silicon-based anode materials greatly limit its wide application: during the process of charge/discharge, the materials are prone to about 300% volume expansion, which will resultin huge stress-strain and crushing or collapse on the anods; in the process of lithium removal, there is some reaction between active material and current collector, which creat an increase in the thickness of the solid phase electrolytic layer(SEI film); during charging and discharging, with the increase of cycle times, cracks will appear on the surface of silicon-based anode materials, which will cause the batteries life to decline. In order to solve these problems, firstly, we summarize the design of porous structure of nanometer sized silicon-based materials and focus on the construction of three-dimensional structural silicon-based materials, which using natural biomass, nanoporous carbon and metal organic framework as structural template. The three-dimensional structure not only increases the channel of lithium-ion intercalation and the rate of ion intercalation, but also makes the structure more stable than one-dimensional or two-dimensional. Secondly, the Si/C composite, SiOx composite and alloying treatment can improve the volume expansion effection, increase the rate of lithium-ion deblocking and optimize the electrochemical performance of the material. The composite materials are usually coated with elastic conductive materials on the surface to reduce the stress, increase the conductivity and improve the electrochemical performance. Finally, the future research direction of silicon-based anode materials is prospected.


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