Researchers from the University of Wollongong have improved a high voltage cathode material to deliver structural stability and an unprecedented electrochemical performance for lithium-ion batteries (LIBs) in work that is extendable to other types of energy storage materials.
The material, LiNi0.5Mn1.5O4 (LNMO) is one of the most promising candidate materials to replace the material LiCoO2, because of a high energy density, low fabrication cost, and low environmental impact.
However, an unsatisfactory cycling performance and structural instability in LMNO has limited its wider application and further commercialisation.
Dr Wei Kong Pang of the University of Wollongong leads a team, who have published a study that has investigated how to overcome inherent challenges associated with using LNMO as a cathode electrode material.
Instability in cathode materials can intensify as the energy density increases, which can affect the reliability and safety of the battery.
Prof Vanessa Peterson, Senior Principal Research & Instrument Scientist at ANSTO’s Australian Centre for Neutron Scattering and Project Lead on Energy Materials and Honorary Professorial Fellow Institute for Superconducting and Electronic Materials University of Wollongong, collaborates on batteries research with the Wollongong group.
To overcome intrinsic properties linked to the structural coordination in the material, the researchers added manganese atoms at specific sites in the disordered spinel...
Read Full Story: https://www.miragenews.com/engineering-of-atomic-structure-improves-676950/
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