Study on electrochemical performance of Al-substitution for different cations in Li-rich Mn-based materials

2021 ◽  
Vol 394 ◽  
pp. 139136
Author(s):  
Xiaolan Fu ◽  
Xin'an Zhou ◽  
Dongni Zhao ◽  
Youwei Liang ◽  
Peng Wang ◽  
...  
Nanoscale ◽  
2020 ◽  
Vol 12 (32) ◽  
pp. 16831-16839
Author(s):  
Na Li ◽  
Kang Wu ◽  
Yu Lin Lee ◽  
Dang Rongbin ◽  
Xin Deng ◽  
...  

The relationship between bond energy and electrochemical performance was studied through substituting Mn in O3-NaNi0.33Mn0.33Fe0.33O2 oxide with Y and Al.


2014 ◽  
Vol 1058 ◽  
pp. 297-301
Author(s):  
Fei Luo ◽  
Lin Zhang ◽  
Zhi Dan Li ◽  
Jian Hua Wang ◽  
Yu Zhong Guo

Li1+xMn2-x-yAlyO4cathode materials were prepared via co-precipitation route; and the crystalline structures, morphologies and electrochemical performance of the prepared powder samples are characterized by XRD, SEM, Galvanostatic charge–discharge cycling. Experimental results show that Li, Al co-substitution significantly enforces the crystalline structures and improves the cycle stability of LiMn2O4materials, and Li1.1Mn1.805Al0.095O4exhibits promising electrochemical performance.


2014 ◽  
Vol 895 ◽  
pp. 355-358 ◽  
Author(s):  
Nurul Atikah Mohd Mokhtar ◽  
Azira Azahidi ◽  
Kelimah Elong ◽  
Nurhanna Badar ◽  
Norlida Kamarulzaman

The effect of different cation substitution on the electrochemical performance of layered LiNi0.8-xCo0.2MxO2(M= Fe, Al;x=0.1) cathode materials were investigated. LiNi0.8-xCo0.2MxO2(M= Fe, Al;x=0.1) cathode materials were successfully synthesized by a combustion method with an annealing temperature of 800 °C for 24h. The physical and electrochemical properties of the materials were examined using X-ray Diffractometer (XRD), Field Emission Scanning Electron Microscopy (FESEM) and electrochemical charge-discharge. The XRD data showed that all the materials are single phase, hexagonal α-NaFeO2 type structure. The initial discharge capacity showed that Fe and Al substituted materials gave 8 % and 10 % improvement compared to LiNi0.8Co0.2O2material. The discharge cycling also showed that the cycle stability has improved when Fe and Al was substituted. In view of electrochemical performance, Al containing sample was found to be superior to those of LiNi0.8Co0.2O2and Fe substituted cathode materials.


2015 ◽  
Vol 30 (12) ◽  
pp. 1291
Author(s):  
ZHANG Yu-Yue ◽  
LIN Jie ◽  
MIAO Guo-Shuan ◽  
GAO Jian-Feng ◽  
CHEN Chu-Sheng ◽  
...  

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