Chinese researchers have made an exciting discovery: fibre from the konjac plant can help improve water-based zinc batteries. These batteries, often used in various applications, struggle in cold temperatures because their components can freeze. Konjac is commonly found in popular foods like noodles and jelly, especially in hotpot dishes.
Aqueous zinc-ion batteries are catching attention because they could be safer and more abundant than lithium batteries. Zinc is easier to source, making it a more sustainable option. However, the water-based electrolytes used in these batteries have a downside; they are likely to freeze when temperatures drop.
In a paper published in the journal Advanced Energy Materials, the research team, led by experts from Changsha University of Science and Technology in China, explains their approach. They added konjac glucomannan, a natural and eco-friendly polymer, to the battery’s electrolyte. This addition helps to break up the hydrogen bonds in water, which can prevent freezing.
Konjac glucomannan is not just effective; it’s also inexpensive and widely available. This makes it a smart choice for improving battery performance, especially in cold weather. By tackling the freezing problem, researchers are a step closer to making aqueous zinc-ion batteries a viable alternative for various technology applications.
This innovative research holds promise for the future of energy storage, particularly in colder regions where battery performance can be significantly affected. With continued advancements, we might see a new wave of efficient, safe, and sustainable batteries powered by zinc and enhanced with konjac fibre.
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