Ti-substituted Li[Li0.26Mn0.6−xTixNi0.07Co0.07]O2 layered cathode material with improved structural stability and suppressed voltage fading

2015 ◽  
Vol 3 (33) ◽  
pp. 17376-17384 ◽  
Author(s):  
Zhaoxin Yu ◽  
Shun-Li Shang ◽  
Mikhail L. Gordin ◽  
Adnan Mousharraf ◽  
Zi-Kui Liu ◽  
...  

Ti-substituted Li[Li0.26Mn0.6−xTixNi0.07Co0.07]O2 cathode shows extended cycle life and mitigated voltage fading due to Ti substitution and its improved stability of the Li- and Mn-rich layered structure.

2017 ◽  
Vol 5 (37) ◽  
pp. 19738-19744 ◽  
Author(s):  
Juan An ◽  
Liyi Shi ◽  
Guorong Chen ◽  
Musen Li ◽  
Hongjiang Liu ◽  
...  

In this work, we doped sulfur into the oxygen layers of a lithium-rich layered metal oxide (LNMO) cathode material for lithium-ion batteries to improve the structural stability and cycling performance.


RSC Advances ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 3997-4005
Author(s):  
Shuang Chen ◽  
Lu Pan ◽  
Tao Ye ◽  
Nuo Lei ◽  
Yijun Yang ◽  
...  

The Cs0.15FA0.85PbI1.80Br1.20 perovskite shows excellent structural stability, while 15% Cs+ can reduce specific traps such as Pb0 and I0.


Author(s):  
Tanvir R. Tanim ◽  
Zhenzhen Yang ◽  
Andrew M. Colclasure ◽  
Parameswara R. Chinnam ◽  
Paul Gasper ◽  
...  

2015 ◽  
Vol 3 (43) ◽  
pp. 21478-21485 ◽  
Author(s):  
Qiang Liu ◽  
Dongxue Wang ◽  
Xu Yang ◽  
Nan Chen ◽  
Chunzhong Wang ◽  
...  

The HRTEM image and long-term cycle life with capacity retentions of 70% and 50% over 1000 and 3000 cycles at 10C and 30C rates, respectively.


2020 ◽  
Vol 8 (40) ◽  
pp. 21306-21316
Author(s):  
Sidra Jamil ◽  
Gang Wang ◽  
Li Yang ◽  
Xin Xie ◽  
Shuang Cao ◽  
...  

Dual modification can effectively stabilize layered structure, improve cycling stability, amend reaction kinetics and facilitate Li+ transport for the application of high Ni cathodes in EVs.


2015 ◽  
Vol 278 ◽  
pp. 156-162 ◽  
Author(s):  
P. Balasubramanian ◽  
M. Marinaro ◽  
S. Theil ◽  
M. Wohlfahrt-Mehrens ◽  
L. Jörissen

2009 ◽  
Vol 620-622 ◽  
pp. 17-20 ◽  
Author(s):  
Wen Gang Liu ◽  
Yun Hua Xu ◽  
Rong Yang

Li2MSiO4(M=Mn, Co, Ni) is a potential high capacity cathode material because of its outstanding properties that exchange of two electrons per transition metal atom is possible and the theoretical capacity of Li2MSiO4 can reach as high as 330 mAhg-1. In this family, the cathode performance of Li2MnSiO4 synthesized by solution route has been published recently. However, it seems that the cycle life of Li2MnSiO4 fell short of our expectation. In this work, the Li2Mn0.7Fe0.3SiO4 cathode material was synthesized by traditional solid-state reaction method. The prepared powder was consisted of majority of Li2Mn0.7Fe0.3SiO4 and minor impurities which were examined by XRD. FESEM morphology showed that the products of Li2Mn0.7Fe0.3SiO4 and Li2MnSiO4 have similar particle size (about 50-300 nm). The electrochemical performance of Li2Mn0.7Fe0.3SiO4, especially for reversible capacity and cycle life, exhibited better than those of Li2MnSiO4.


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