Proceedings of the 2015 2nd International Conference on Machinery, Materials Engineering, Chemical Engineering and Biotechnology

Synthesis of the spinel LiNi0.5Mn1.5O4 as 5V cathode material by carbonate co-precipitation method

Authors
Shiyou Li, Shan Geng
Corresponding Author
Shiyou Li
Available Online December 2015.
DOI
10.2991/mmeceb-15.2016.34How to use a DOI?
Keywords
lithium-ion batteries, spinel, LiNi0.5Mn1.5O4, carbonate co-precipitation method
Abstract

LiNi0.5Mn1.5O4 has been synthesized by carbonate co-precipitation method in which we got the precursor that was pretreated with H2O2 (an oxidant), in order to oxidize part of Mn2+ to Mn4+,results in a decrease of Mn3+ in the structure. Result in the average valence of Mn is approximately 4 in the LiNi0.5Mn1.5O4 structure, leading to an improved structural stability. The sample was characterized by XRD (X-ray diffraction) and SEM (Scanning Electron Microscope) test, respectively. The XRD results show that peaks of the sample are consistent with that of standard LiNi0.5Mn1.5O4.The SEM pattern shows that there are complete octahedron exists, the result indicate that material structure is an intact spinel structure. In addition, electrochemical properties have been tested. The first discharge capacity is 100.8mAh g-1 at 0.25 C. And cycling performance was tested, it is also preferable.

Copyright
© 2016, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2015 2nd International Conference on Machinery, Materials Engineering, Chemical Engineering and Biotechnology
Series
Advances in Engineering Research
Publication Date
December 2015
ISBN
978-94-6252-151-3
ISSN
2352-5401
DOI
10.2991/mmeceb-15.2016.34How to use a DOI?
Copyright
© 2016, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Shiyou Li
AU  - Shan Geng
PY  - 2015/12
DA  - 2015/12
TI  - Synthesis of the spinel LiNi0.5Mn1.5O4 as 5V cathode material by carbonate co-precipitation method
BT  - Proceedings of the 2015 2nd International Conference on Machinery, Materials Engineering, Chemical Engineering and Biotechnology
PB  - Atlantis Press
SP  - 163
EP  - 166
SN  - 2352-5401
UR  - https://doi.org/10.2991/mmeceb-15.2016.34
DO  - 10.2991/mmeceb-15.2016.34
ID  - Li2015/12
ER  -