Correlation between structural, electrical and electrochemical performance of Zn doped high voltage spinel LiNi0.5-xZnxMn1.5O4 porous microspheres as a cathode material for Li-Ion batteries

2021 ◽  
Author(s):  
V. Gajraj ◽  
R. Azmi ◽  
M.S.D. Darma ◽  
S. Indris ◽  
H. Ehrenberg ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
High Voltage ◽  
Li Ion Batteries ◽  
Porous Microspheres ◽  
Li Ion

Improved electrochemical performance of LiCoO2 electrodes for high-voltage operations by Ag thin film coating via magnetron sputtering

MRS Advances ◽  
2018 ◽  
Vol 3 (60) ◽  
pp. 3513-3518 ◽  
Author(s):  
Taner Zerrin ◽  
Mihri Ozkan ◽  
Cengiz S. Ozkan
Keyword(s):  
Thin Film ◽  
Magnetron Sputtering ◽  
Electrochemical Performance ◽  
High Voltage ◽  
Coulombic Efficiency ◽  
High Capacity ◽  
Interface Layer ◽  
Li Ion Batteries ◽  
Electrode Structure ◽  
Li Ion

ABSTRACTIncreasing the operation voltage of LiCoO2 (LCO) is a direct way to enhance the energy density of the Li-ion batteries. However, at high voltages, the cycling stability degrades very fast due to the irreversible changes in the electrode structure, and formation of an unstable solid electrolyte interface layer. In this work, Ag thin film was prepared on commercial LCO cathode by using magnetron sputtering technique. Ag coated electrode enabled an improved electrochemical performance with a better cycling capability. After 100 cycles, Ag coated LCO delivers a discharge capacity of 106.3 mAh g-1 within 3 - 4.5 V at C/5, which is increased by 45 % compared to that of the uncoated LCO. Coating the electrode surface with Ag thin film also delivered an improved Coulombic efficiency, which is believed to be an indication of suppressed parasitic reactions at the electrode interface. This work may lead to new methods on surface modifications of LCO and other cathode materials to achieve high-capacity Li-ion batteries for high-voltage operations.

Study on electrochemical performance and mechanism of V-doped Li2FeSiO4 cathode material for Li-ion batteries

2015 ◽  
Vol 152 ◽  
pp. 496-504 ◽  
Author(s):  
Lu-Lu Zhang ◽  
Hua-Bin Sun ◽  
Xue-Lin Yang ◽  
Yan-Wei Wen ◽  
Yun-Hui Huang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Li Ion Batteries ◽  
Li Ion ◽  
Performance And Mechanism

Facile synthesis and characterization of a SnO2-modified LiNi0.5Mn1.5O4 high-voltage cathode material with superior electrochemical performance for lithium ion batteries

2017 ◽  
Vol 19 (15) ◽  
pp. 9983-9991 ◽  
Author(s):  
Feng Ma ◽  
Fushan Geng ◽  
Anbao Yuan ◽  
Jiaqiang Xu
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
High Voltage ◽  
Lithium Ion ◽  
Synthesis And Characterization ◽  
Synthetic Method ◽  
Facile Synthesis ◽  
Li Ion

The SnO2-modified LiNi0.5Mn1.5O4 high-voltage Li-ion cathode material exhibits superior electrochemical performance, and the synthetic method has the advantage of being facile.

A mesoporous conjugated polymer based on a high free radical density polytriphenylamine derivative: its preparation and electrochemical performance as a cathode material for Li-ion batteries

2017 ◽  
Vol 5 (6) ◽  
pp. 2701-2709 ◽  
Author(s):  
Chang Su ◽  
Huihui He ◽  
Lihuan Xu ◽  
Kai Zhao ◽  
Chuncui Zheng ◽  
...  
Keyword(s):  
Free Radical ◽  
Electrochemical Performance ◽  
Cathode Material ◽  
Conjugated Polymer ◽  
Discharge Voltage ◽  
Rate Performance ◽  
Li Ion Batteries ◽  
Voltage Plateau ◽  
Li Ion

A novel polytriphenylamine derivative has been prepared, which, as a cathode, exhibits a well-defined multistage discharge voltage plateau, an improved capacity and an enhanced rate performance.

Improving the electrochemical performance of the LiNi0.5Mn1.5O4spinel by polypyrrole coating as a cathode material for the lithium-ion battery

2015 ◽  
Vol 3 (1) ◽  
pp. 404-411 ◽  
Author(s):  
Xuan-Wen Gao ◽  
Yuan-Fu Deng ◽  
David Wexler ◽  
Guo-Hua Chen ◽  
Shu-Lei Chou ◽  
...  
Keyword(s):  
Elevated Temperature ◽  
Electrochemical Performance ◽  
Cathode Material ◽  
Electrochemical Properties ◽  
Lithium Ion Battery ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Li Ion Batteries ◽  
Li Ion ◽  
Conductive Polypyrrole

Conductive polypyrrole (PPy)-coated LiNi0.5Mn1.5O4(LNMO) composites are applied as cathode materials in Li-ion batteries, and their electrochemical properties are explored at both room and elevated temperature.

Electrochemical Performance of a Layered-Spinel Integrated Li[Ni1/3Mn2/3]O2 as a High Capacity Cathode Material for Li-Ion Batteries

2015 ◽  
Vol 27 (7) ◽  
pp. 2600-2611 ◽  
Author(s):  
Prasant Kumar Nayak ◽  
Judith Grinblat ◽  
Mikhael D. Levi ◽  
Ortal Haik ◽  
Elena Levi ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
High Capacity ◽  
Li Ion Batteries ◽  
Li Ion
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