Structural and electrochemical properties of aluminium doped LiMn2O4 cathode materials for Li battery: Experimental and ab initio calculations

2014 ◽  
Vol 5 ◽  
pp. 44-49 ◽  
Author(s):  
Mesfin A. Kebede ◽  
Maje J. Phasha ◽  
Niki Kunjuzwa ◽  
Lukas J. le Roux ◽  
Donald Mkhonto ◽  
...  
Keyword(s):  
Ab Initio Calculations ◽  
Electrochemical Properties ◽  
Ab Initio ◽  
Cathode Materials ◽  
Limn2o4 Cathode ◽  
Li Battery

Structural and electrochemical properties of Mg-doped nickel based cathode materials LiNi0.6Co0.2Mn0.2−xMgxO2 for lithium ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (108) ◽  
pp. 88773-88779 ◽  
Author(s):  
Zhenjun Huang ◽  
Zhixing Wang ◽  
Xiaobo Zheng ◽  
Huajun Guo ◽  
Xinhai Li ◽  
...  
Keyword(s):  
Ab Initio Calculations ◽  
Electrochemical Properties ◽  
Ab Initio ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Lithium Ion ◽  
The Impact ◽  
Mg Doped

Combined with experiments and ab initio calculations, we investigated the impact of the substitution of Mn with Mg in LiNi0.6Co0.2Mn0.2O2.

Ab initio calculations on the electronic structures and electrochemical properties of LiVO2 and NaVO2

2020 ◽  
Vol 288 ◽  
pp. 121383
Author(s):  
Lei Wu ◽  
Xin-Rui Cao ◽  
Shun-Qing Wu ◽  
Yong Yang ◽  
Zi-Zhong Zhu
Keyword(s):  
Ab Initio Calculations ◽  
Electrochemical Properties ◽  
Ab Initio ◽  
Electronic Structures

Finite-temperature property-maps of Li–Mn–Ni–O cathode materials from ab initio calculations

2018 ◽  
Vol 6 (14) ◽  
pp. 5687-5694 ◽  
Author(s):  
Jan-Michael Albina ◽  
Anika Marusczyk ◽  
Thomas Hammerschmidt ◽  
Thomas Eckl ◽  
Ralf Drautz
Keyword(s):  
Ab Initio Calculations ◽  
Ab Initio ◽  
Cathode Materials ◽  
Finite Temperature ◽  
Electrode Materials ◽  
Temperature Property ◽  
Ni Content ◽  
Property Map

Property map of the voltage for Li–Mn–Ni–O electrode materials as a function of the ratio of Li2MnO3·LiMnO2 and the Ni content in LiMnO2 at T = 300 K.

Phase stability of Li–Mn–O oxides as cathode materials for Li-ion batteries: insights from ab initio calculations

2014 ◽  
Vol 16 (23) ◽  
pp. 11233-11242 ◽  
Author(s):  
R. C. Longo ◽  
F. T. Kong ◽  
Santosh KC ◽  
M. S. Park ◽  
J. Yoon ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Ab Initio Calculations ◽  
Ab Initio ◽  
Phase Stability ◽  
Cathode Materials ◽  
Chemical Potential ◽  
Li Ion Batteries ◽  
Li Ion ◽  
O Phase

The Li–Mn–O phase diagram as a function of the chemical potential of Li and O and the pH.

Effect of Citric Acid on Electrochemical Properties of Spinel LiMn2O4 Prepared by Solid-State Combustion Synthesis

2012 ◽  
Vol 581-582 ◽  
pp. 353-358 ◽  
Author(s):  
Xian Yan Zhou ◽  
Mi Mi Chen ◽  
Chang Wei Su ◽  
Yan Xia ◽  
Xiang Zhong Huang ◽  
...  
Keyword(s):  
Citric Acid ◽  
Solid State ◽  
Electrochemical Properties ◽  
Combustion Synthesis ◽  
Cathode Materials ◽  
Raw Materials ◽  
Lithium Carbonate ◽  
Manganese Carbonate ◽  
X Ray Diffraction ◽  
Limn2o4 Cathode

LiMn2O4 cathode materials were successfully prepared by solid-state combustion synthesis with the lithium carbonate and the manganese carbonate as raw materials and the citric acid as fuel. The effect of citric acid on composition, microstructure and electrochemical properties of LiMn2O4 cathode materials was investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), cyclic voltammetry (CV) and galvanostatic charge-discharge test. The results indicated that a pure phase of LiMn2O4 was prepared at the product with 5 wt% citric acid. However, an impure phase of Mn3O4 was found at other products. The crystal size distribution was more uniform at the higher content of citric acid. The products with 5 wt% and 10 wt% citric acid, the cubic structure morphologies of which were more prominent, and the capacities of which were higher than that of bare LiMn2O4 product. Their initial discharge specific capacities were 119.6 mAh•g-1 and 114.0 mAh•g-1, and their capacity retention ratios after 40 cycles were 85.0% and 87.7%, respectively.

scholarly journals Synthesis Of Fe Doped LiMn2O4 Cathode Materials For Li Battery By Solid State Reaction

2015 ◽  
Vol 60 (2) ◽  
pp. 949-951
Author(s):  
N. Horata ◽  
T. Hashizume ◽  
A. Saiki
Keyword(s):  
Cathode Materials ◽  
Human Life ◽  
Low Cost ◽  
Lithium Ion ◽  
Consecutive Reaction ◽  
X Ray ◽  
Limn2o4 Cathode ◽  
Li Battery ◽  
Low Toxicity ◽  
Small Capacity

Abstract LiFe0.1Mn1.9O4 is expected as a cathode material for the rechargeable lithium-ion batteries. LiMn2O4 has been received attention because this has advantages such as low cost and low toxicity compared with other cathode materials of LiCoO2 and LiNiO2. However, LiMn2O4 has some problems such as small capacity and no long life. LiMn2O4 is phase transformation at around human life temperature. One of the methods to overcome this problem is to stabilize the spinel structure by substituting Mn site ion in LiMn2O4 with transition metals (Al, Mg, Ti, Ni, Fe, etc.). LiFe0.1Mn1.9O4 spinel was synthesized from Li2CO3, Fe2O3 and MnO2 powder. The purpose of this study is to report the optimal condition of Fe doped LiFe0.1Mn1.9O4. Li2CO3, Fe2O3, and MnO2 mixture powder was heated up to 1173 K by TG-DTA. Li2CO3 was thermal decomposed, and CO2 gas evolved, and formed Li2O at about 800 K. LiFe0.1Mn1.9O4 was synthesized from a consecutive reaction Li2O, Fe2O3 and MnO2 at 723 ~ 1023 K. Active energy is calculated to 178 kJmol−1 at 723 ~ 1023 K. The X-ray powder diffraction pattern of the LiFe0.1Mn1.9O4 heated mixture powder at 1023 K for 32 h in air flow was observed.

Electrochemical properties and kinetics of Li–Cu co-doping LiMn2O4 cathode materials

2019 ◽  
Vol 31 (1) ◽  
pp. 286-297 ◽  
Author(s):  
Linqiao Liang ◽  
Mingwu Xiang ◽  
Wei Bai ◽  
Junming Guo ◽  
Changwei Su ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Cathode Materials ◽  
Co Doping ◽  
Limn2o4 Cathode ◽  
Kinetics Of

Obstacles toward unity efficiency of LiNi 1-2x Co x Mn x O 2 (x = 0 ∼ 1/3) (NCM) cathode materials: Insights from ab initio calculations

2017 ◽  
Vol 340 ◽  
pp. 217-228 ◽  
Author(s):  
Chaoping Liang ◽  
Roberto C. Longo ◽  
Fantai Kong ◽  
Chenxi Zhang ◽  
Yifan Nie ◽  
...  
Keyword(s):  
Ab Initio Calculations ◽  
Ab Initio ◽  
Cathode Materials
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