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Title: Nanoscale LiNi 0.5Co 0.2Mn 0.3O 2 cathode materials for lithium ion batteries via a polymer-assisted chemical solution method

Abstract

A novel and facile polymer-assisted chemical solution method is successfully developed for the synthesis of LiNi 0.5Co 0.2Mn 0.3O 2 (NCM) with unique morphology and nanoparticle nature as cathodes for lithium-ion batteries. At calcination temperature up to 800 °C and 900 °C, NCM with hexagonal crystal structure of layered α-NaFeO 2 ($$R\bar{3}m$$ spacing group) is formed and a lower degree of Ni/Li cation mixing for sample heated at 900 °C is determined by XRD Rietveld refinement. SEM and TEM images reveal the uniform size distribution of nanoparticles. HRTEM confirms the single crystalline nature of particles with layered structure. XPS verifies the oxidation state of Co 3+, Mn 4+, Ni 2+ and Ni 3+. As compared with the sample prepared at 800 °C, the sample heated at 900 °C exhibits a higher initial discharge specific capacity of 189 mAh g -1 being charged to 4.5 V at a current rate of 0.05 C, and better cyclability at 4.3 V cutoff voltage at a current density of 1 C. This method has demonstrated easy tuning compositions and particle sizes of cathode materials.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
National Science Foundation (NSF)
OSTI Identifier:
1567740
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
ACS Applied Materials and Interfaces
Additional Journal Information:
Journal Volume: 16; Journal ID: ISSN 1944-8244
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
Rietveld refinement; cation mixing; layered cathode materials; lithium ion battery; polymer-assisted solution method

Citation Formats

Huang, Di, Shi, Yang, Tornheim, Adam P., Bareño, Javier, Chen, Zheng, Zhang, Zhengcheng, Burrel, Anthony, and Luo, Hongmei. Nanoscale LiNi0.5Co0.2Mn0.3O2 cathode materials for lithium ion batteries via a polymer-assisted chemical solution method. United States: N. p., 2019. Web. doi:10.1016/j.apmt.2019.06.008.
Huang, Di, Shi, Yang, Tornheim, Adam P., Bareño, Javier, Chen, Zheng, Zhang, Zhengcheng, Burrel, Anthony, & Luo, Hongmei. Nanoscale LiNi0.5Co0.2Mn0.3O2 cathode materials for lithium ion batteries via a polymer-assisted chemical solution method. United States. doi:10.1016/j.apmt.2019.06.008.
Huang, Di, Shi, Yang, Tornheim, Adam P., Bareño, Javier, Chen, Zheng, Zhang, Zhengcheng, Burrel, Anthony, and Luo, Hongmei. Sun . "Nanoscale LiNi0.5Co0.2Mn0.3O2 cathode materials for lithium ion batteries via a polymer-assisted chemical solution method". United States. doi:10.1016/j.apmt.2019.06.008.
@article{osti_1567740,
title = {Nanoscale LiNi0.5Co0.2Mn0.3O2 cathode materials for lithium ion batteries via a polymer-assisted chemical solution method},
author = {Huang, Di and Shi, Yang and Tornheim, Adam P. and Bareño, Javier and Chen, Zheng and Zhang, Zhengcheng and Burrel, Anthony and Luo, Hongmei},
abstractNote = {A novel and facile polymer-assisted chemical solution method is successfully developed for the synthesis of LiNi0.5Co0.2Mn0.3O2 (NCM) with unique morphology and nanoparticle nature as cathodes for lithium-ion batteries. At calcination temperature up to 800 °C and 900 °C, NCM with hexagonal crystal structure of layered α-NaFeO2 ($R\bar{3}m$ spacing group) is formed and a lower degree of Ni/Li cation mixing for sample heated at 900 °C is determined by XRD Rietveld refinement. SEM and TEM images reveal the uniform size distribution of nanoparticles. HRTEM confirms the single crystalline nature of particles with layered structure. XPS verifies the oxidation state of Co3+, Mn4+, Ni2+ and Ni3+. As compared with the sample prepared at 800 °C, the sample heated at 900 °C exhibits a higher initial discharge specific capacity of 189 mAh g-1 being charged to 4.5 V at a current rate of 0.05 C, and better cyclability at 4.3 V cutoff voltage at a current density of 1 C. This method has demonstrated easy tuning compositions and particle sizes of cathode materials.},
doi = {10.1016/j.apmt.2019.06.008},
journal = {ACS Applied Materials and Interfaces},
issn = {1944-8244},
number = ,
volume = 16,
place = {United States},
year = {2019},
month = {9}
}