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Title: Self-Substitution and the Temperature Effects on the Electrochemical Performance in the High Voltage Cathode System LiMn 1.5+xNi 0.5-xO 4 (x = 0.1)

The high voltage cathode material, LiMn 1.6Ni 0.4O 4, was prepared by a polymer-assisted method. The novelty of this paper is the substitution of Ni with Mn, which already exists in the crystal structure instead of other isovalent metal ion dopants which would result in capacity loss. The electrochemical performance testing including stability and rate capability was evaluated. The temperature was found to impose a change on the valence and structure of the cathode materials. Specifically, manganese tends to be reduced at a high temperature of 800 °C and leads to structural changes. The manganese substituted LiMn 1.5Ni 0.5O 4 (LMN) has proved to be a good candidate material for Li-ion battery cathodes displaying good rate capability and capacity retention. Finally, the cathode materials processed at 550 °C showed a stable performance with negligible capacity loss for 400 cycles.
Authors:
 [1] ;  [1] ;  [2] ;  [3] ;  [1]
  1. Clemson Univ., SC (United States). Dept. of Materials Science and Engineering
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). Photon Science Directorate
  3. New Mexico State Univ., Las Cruces, NM (United States). Dept. of Chemical & Materials Engineering
Publication Date:
Report Number(s):
BNL-203267-2018-JAAM
Journal ID: ISSN 2381-6872; TRN: US1802038
Grant/Contract Number:
SC0012704
Type:
Accepted Manuscript
Journal Name:
Journal of Fuel Cell Science and Technology (Online)
Additional Journal Information:
Journal Name: Journal of Fuel Cell Science and Technology (Online); Journal Volume: 14; Journal Issue: 2; Journal ID: ISSN 2381-6872
Publisher:
ASME
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE
OSTI Identifier:
1425086

Xu, Yun, Zhao, Mingyang, Khalid, Syed, Luo, Hongmei, and Brinkman, Kyle S. Self-Substitution and the Temperature Effects on the Electrochemical Performance in the High Voltage Cathode System LiMn1.5+xNi0.5-xO4 (x = 0.1). United States: N. p., Web. doi:10.1115/1.4036386.
Xu, Yun, Zhao, Mingyang, Khalid, Syed, Luo, Hongmei, & Brinkman, Kyle S. Self-Substitution and the Temperature Effects on the Electrochemical Performance in the High Voltage Cathode System LiMn1.5+xNi0.5-xO4 (x = 0.1). United States. doi:10.1115/1.4036386.
Xu, Yun, Zhao, Mingyang, Khalid, Syed, Luo, Hongmei, and Brinkman, Kyle S. 2017. "Self-Substitution and the Temperature Effects on the Electrochemical Performance in the High Voltage Cathode System LiMn1.5+xNi0.5-xO4 (x = 0.1)". United States. doi:10.1115/1.4036386. https://www.osti.gov/servlets/purl/1425086.
@article{osti_1425086,
title = {Self-Substitution and the Temperature Effects on the Electrochemical Performance in the High Voltage Cathode System LiMn1.5+xNi0.5-xO4 (x = 0.1)},
author = {Xu, Yun and Zhao, Mingyang and Khalid, Syed and Luo, Hongmei and Brinkman, Kyle S.},
abstractNote = {The high voltage cathode material, LiMn1.6Ni0.4O4, was prepared by a polymer-assisted method. The novelty of this paper is the substitution of Ni with Mn, which already exists in the crystal structure instead of other isovalent metal ion dopants which would result in capacity loss. The electrochemical performance testing including stability and rate capability was evaluated. The temperature was found to impose a change on the valence and structure of the cathode materials. Specifically, manganese tends to be reduced at a high temperature of 800 °C and leads to structural changes. The manganese substituted LiMn1.5Ni0.5O4 (LMN) has proved to be a good candidate material for Li-ion battery cathodes displaying good rate capability and capacity retention. Finally, the cathode materials processed at 550 °C showed a stable performance with negligible capacity loss for 400 cycles.},
doi = {10.1115/1.4036386},
journal = {Journal of Fuel Cell Science and Technology (Online)},
number = 2,
volume = 14,
place = {United States},
year = {2017},
month = {5}
}