Fe doped LiNi0.8Co0.15Al0.05 O2 (NCA) cathode materials: Synthesis, structural and morphological studies

• Published in: IOP Conference Series: Earth and Environmental Science
• Main Author: Isti'Adzah L.; Kasim M.F.; Elong K.A.; Azahidi A.; Saaid F.I.; Mohamad A.A.
• Format: Conference paper
• Language: English
• Published: Institute of Physics 2023
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85182364575&doi=10.1088%2f1755-1315%2f1281%2f1%2f012067&partnerID=40&md5=5bc579ddf46cccca56c7b64ab72c592f

As a result of its substantial energy density, layered LiNi0.8Co0.15Al0.05O2 cathode materials are thought to be the most promising of the next-generation cathode materials for electric vehicles (EVs). In this research, self propagating combustion (SPC) is used to prepare cathode materials made of pristine LiNi0.8Co0.15Al0.05O2 (NCA) and NCA doped with 1% Fe to produce LiNi0.8Co0.14Fe0.01Al0.05O2. Based on X-Ray Diffraction (XRD) results, pristine and doped NCA cathode materials were pure and single phase. Reference Intensity Ratio (RIR) values for pristine and doped NCA are 0.87 and 1.12 respectively indicating that the amount of cation mixing was reduced with Fe doping. Through Rietveld refinement, it was discovered that the addition of Fe to NCA resulted in a decrease in cation mixing from 13.56% to 4.07%.It was found that both pristine and doped NCA possessed polyhedral like shape morphology. It can be seen that doping with 1% Fe does not change much in the crystallite size of the materials.. By having less cation mixing, Fe doped was found to greatly improve the structural integrity of NCA cathode materials, which in turn improved the materials' electrochemical performance. © 2023 Institute of Physics Publishing. All rights reserved.