Influence of Roasting Temperature on Electrochemical Performance of LiNi0.5Mn1.5O4 Cathode for Lithium-Ion Battery-Reference-Cited by-同舟云学术

Influence of Roasting Temperature on Electrochemical Performance of LiNi0.5Mn1.5O4 Cathode for Lithium-Ion Battery

Published:2018-03-15 Issue:2 Volume:15 Page:
ISSN:2381-6872
Container-title:Journal of Electrochemical Energy Conversion and Storage
language:en
Short-container-title:

Author:

Niu Lei¹,Geng Shan²,Li Hongliang²,Du Songli²,Cui Xiaoling³,Li Shiyou⁴

Affiliation:

1. School of Materials Science and Engineering; State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China

2. College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, China

3. School of Materials Science and Engineering; State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals; College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, China

4. College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, China e-mail:

Abstract

Nanomicro spheres of LiNi0.5Mn1.5O4 materials are prepared by carbonate coprecipitation method. The effect of calcination temperatures on morphology and electrochemical property is explored. Results show that the structure of the material becomes more compact with the increase of the temperature, which is propitious to the improvement of electrical conductivity and activation level of the material. The charge–discharge tests show that the sample obtained at 850 °C (LNMO850) exhibits optimal rate capability and cyclic stability, due to the fact that LNMO850 has a high diffusion coefficient, which is propitious to the improvement of electrical conductivity and activation level of the material.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electronic, Optical and Magnetic Materials

Link

http://asmedigitalcollection.asme.org/electrochemical/article-pdf/doi/10.1115/1.4038799/6132949/jeecs_015_02_021007.pdf

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