Electrochemical and cycling performance of neodymium (Nd3+) doped LiNiPO4 cathode materials for high voltage lithium-ion batteries

2019 ◽  
Vol 237 ◽  
pp. 224-227 ◽  
Author(s):  
S. Karthickprabhu ◽  
Dhanasekaran Vikraman ◽  
A. Kathalingam ◽  
K. Prasanna ◽  
Hyun-Seok Kim ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Voltage ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Cycling Performance

scholarly journals High-Voltage “Single-Crystal” Cathode Materials for Lithium-Ion Batteries

2021 ◽  
Vol 35 (3) ◽  
pp. 1918-1932
Author(s):  
Yinzhong Wang ◽  
Errui Wang ◽  
Xu Zhang ◽  
Haijun Yu
Keyword(s):  
Single Crystal ◽  
Lithium Ion Batteries ◽  
High Voltage ◽  
Cathode Materials ◽  
Lithium Ion

scholarly journals LiCoO2/Graphite Cells with Localized High Concentration Carbonate Electrolytes for Higher Energy Density

Liquids ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 60-74
Author(s):  
Xin Ma ◽  
Peng Zhang ◽  
Huajun Zhao ◽  
Qingrong Wang ◽  
Guangzhao Zhang ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
High Voltage ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Porous Electrodes ◽  
Dramatic Improvement ◽  
Effective Strategy ◽  
High Concentration ◽  
Mixed Carbonate

Widening the working voltage of lithium-ion batteries is considered as an effective strategy to improve their energy density. However, the decomposition of conventional aprotic electrolytes at high voltage greatly impedes the success until the presence of high concentration electrolytes (HCEs) and the resultant localized HCEs (LHCEs). The unique solvated structure of HCEs/LHCEs endows the involved solvent with enhanced endurance toward high voltage while the LHCEs can simultaneously possess the decent viscosity for sufficient wettability to porous electrodes and separator. Nowadays, most LHCEs use LiFSI/LiTFSI as the salts and β-hydrofluoroethers as the counter solvents due to their good compatibility, yet the LHCE formula of cheap LiPF6 and high antioxidant α-hydrofluoroethers is seldom investigated. Here, we report a unique formula with 3 mol L−1 LiPF6 in mixed carbonate solvents and a counter solvent α-substituted fluorine compound (1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropylether). Compared to a conventional electrolyte, this formula enables dramatic improvement in the cycling performance of LiCoO2//graphite cells from approximately 150 cycles to 1000 cycles within the range of 2.9 to 4.5 V at 0.5 C. This work provides a new choice and scope to design functional LHCEs for high voltage systems.

[email protected] as high-voltage lithium-ion battery cathode materials with improved cycling performance and thermal stability

2019 ◽  
Vol 327 ◽  
pp. 135018 ◽  
Author(s):  
Peipei Pang ◽  
Zheng Wang ◽  
Xinxin Tan ◽  
Yaoming Deng ◽  
Junmin Nan ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Lithium Ion Battery ◽  
High Voltage ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Cycling Performance

scholarly journals Kinetic characteristics up to 4.8 V of layered LiNi1/3Co1/3Mn1/3O2 cathode materials for high voltage lithium-ion batteries

2017 ◽  
Vol 227 ◽  
pp. 152-161 ◽  
Author(s):  
Xianhui Zhang ◽  
Zhenlian Chen ◽  
Björn Schwarz ◽  
Florian Sigel ◽  
Helmut Ehrenberg ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Voltage ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Kinetic Characteristics
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