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Device demonstrates a remarkable advancement in energy storage and promises to be a sustainable solution
The world of battery technology is constantly evolving, driven by the search for more efficient and sustainable solutions for storing energy. Recently, researchers from the Department of Mechanical Engineering, University of Hong Kong presented an innovative design that promises to revolutionize the field. This new battery combines high energy density and sustainability process, becoming hope for the future of energy storage.
The battery is the heart of many electronic devices and electric vehicles, playing a vital role in our modern society. The search for more efficient batteries has been a priority, and The use of magnesium ions (Mg-ion) has stood out as a promising alternative to traditional lithium-ion batteries, mainly due to their sustainability.
Researchers at this university stood out by developing a quasi-solid state magnesium ion battery (QSMB) with an innovative proposal. This battery is powered by a polymer-enhanced electrolyte, which solves the challenge of competition between protons and metal ions in magnesium ion storage. The result? A battery that offers high energy density and impressive performance, promoting greater sustainability.
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Ion battery can solve ecological and performance challenges
One of the main limitations of ion batteries of magnesium has been the narrow electrochemical range in aqueous or water-based systems. Furthermore, low ionic conductivity in non-aqueous systems also posed a significant challenge. However, QSMB's innovative design solves these problems remarkably.
Sarah Leong, Ph.D. and first author of the study, explained that protons, due to their smaller size, could easily enter the battery's cathode structure, competing with magnesium ions. This severely limited how much energy the battery could store and how long it could last. The QSMB overcomes these obstacles, achieving a voltage of 2,4 V and an energy density of 264 W·h kg –1, surpassing traditional magnesium-ion batteries and impressing in terms of sustainability.
During testing, this battery proved to be incredibly resistant, with only 10% of its capacity eliminated after 900 cycles at extremely low temperatures, reaching -22°C. This exceptional performance highlights the promise of QSMB as a reliable solution for energy storage under challenging conditions and greater sustainability.
The path to cleaner, more efficient energy
The near-solid-state magnesium-ion battery represents a notable advancement in the field of energy storage, but it also offers significant promise for sustainability. Innovative design and superior performance make this technology relevant for a wide range of applications, from personal electronics to electric vehicles and large-scale energy storage.
Dennis YC Leung, research leader, expressed excitement about the potential of this battery: “Our near-solid-state magnesium-ion battery combines the best of both worlds, offering the high voltage of non-aqueous systems and the safety and economics of non-aqueous systems. aqueous. It represents a major step forward in the development of high-performance magnesium-ion batteries.”
As the demand for sustainability and storage As energy efficiency continues to grow, the QSMB can become a key piece of the puzzle, promoting a faster transition to a society powered by clean, renewable energy sources. The combination of high energy density and sustainability makes this battery design a valuable contribution to a greener, more prosperous future.
