Proceedings of MATSUS Fall 2024 Conference (MATSUSFall24)
DOI: https://doi.org/10.29363/nanoge.matsusfall.2024.324
Publication date: 28th August 2024
UK is dedicated to achieving net-zero emissions by 2050, aiming for a delicate balance
between greenhouse gas emissions and their removal from the atmosphere. To accomplish
this ambitious goal, UK is actively exploring renewable energy. Scotland has emerged as a
frontrunner in renewable energy, particularly in wind power;1 however, given the intermittent
nature of energy resources like wind, reliable, clean energy storage solutions are imperative.
In this context, devices such as supercapacitors and batteries play pivotal roles in ensuring
energy stability and sustainability.
While lithium-ion (Li-ion) batteries are currently dominant in the global market,
concerns over the scarcity of lithium highlight the need for sustainable alternatives.2 The
development of nonaqueous multivalent ion batteries, such as those utilizing magnesium
(Mg), presents a promising avenue to build upon the benefits of dendrite- free metal plating-
stripping (safety), high abundance, and higher volumetric energy density, surpassing the
limitations associated with Li-ion technology. Yet, the challenge lies in identifying fast Mg2+ ion
conducting materials to achieve satisfactory energy, particularly power density. Directly
translating state-of-the-art positive electrode materials for Li-ion systems renders adversities
within the Mg2+ system. Nevertheless, with ongoing advancements in Mg electrolytes and
cathode materials, significant progress has been achieved.3
My talk will delve into various material chemistries, including chalcogenides, oxides,
and polyanions, assessing the merits and challenges of each as Mg ion cathode.4, 5
Furthermore, the development of new materials should be synchronized with the
advancement of techniques for analyzing battery components, especially during the cycling
process. Consequently, I will also discuss recent findings aimed at improving Mg2+ diffusion
by adjusting their interactions with cathode hosts, offering insights into the future direction of
research in this dynamic field.