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Crystal alignment of a LiNi0.5Mn0.3Co0.2O2electrode material for lithium ion batteries using its magnetic properties

Title
Crystal alignment of a LiNi0.5Mn0.3Co0.2O2electrode material for lithium ion batteries using its magnetic properties
Authors
Kim, ChamYang, YeokyungLopez, David HumbertoHa, Dongwoo
DGIST Authors
Kim, Cham
Issue Date
2020-09
Citation
Applied Physics Letters, 117(12), 123903
Type
Article
Article Type
Article
Keywords
ELECTROCHEMICAL IMPEDANCE SPECTROSCOPYCATHODE MATERIALSTHICK ELECTRODESPERFORMANCEINTERCALATIONDIFFUSIONENERGY
ISSN
0003-6951
Abstract
We studied technology that enables the crystal alignment of LiNi0.5Mn0.3Co0.2O2 using its magnetic properties. LiNi0.5Mn0.3Co0.2O2 exhibited either antiferromagnetic or paramagnetic behavior depending on temperature as well as magnetic anisotropy originated from its crystallographic anisotropy. Based on these magnetic characteristics, we adjusted the vector quantity of an external magnetic field and applied it to LiNi0.5Mn0.3Co0.2O2 crystals, thus producing crystal-aligned LiNi0.5Mn0.3Co0.2O2 electrodes. In these electrodes, the (00l) plane was oriented comparatively perpendicular to the surface of a current collector. Due to the intrinsic lithium ion transport kinetics in LiNi0.5Mn0.3Co0.2O2 along the (00l) plane, aligned LiNi0.5Mn0.3Co0.2O2 may contribute to enhancing lithium ion conduction during the charge/discharge process in a lithium ion battery, resulting in improved electrochemical performance. © 2020 Author(s).
URI
http://hdl.handle.net/20.500.11750/12439
DOI
10.1063/5.0016456
Publisher
American Institute of Physics
Related Researcher
Files:
There are no files associated with this item.
Collection:
Division of Nanotechnology1. Journal Articles


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