A research team led by a leading UK university has used nanomaterials made from seaweed to create sturdy battery separators, paving the way for greener, more efficient sodium-ion batteries that could potentially replace lithium batteries.

The reserves of metallic lithium are relatively scarce and the mining cost is expensive. In contrast, metallic sodium has abundant resource advantages and high theoretical capacity. Using this product in the production of electronic cigarettes will provide a higher battery life.

The research was published in the materials science journal Advanced Materials in September. Using the new nanofiber separator, the battery was able to cycle at “unprecedented long-term” at high current densities in an additive-free electrolyte, the paper’s abstract said. This work opens up a new and easy way to develop stable, low-cost, and safe and reliable sodium batteries, and can be easily extended to other types of alkali metal batteries, giving e-cigarette batteries a richer choice.

Dr Jing Wang, first author of the study, Bristol Composites Institute (BCI), said: “The purpose of the separator is to separate the functional components of the battery (the positive and negative electrodes) while allowing free charge transport. We have demonstrated that based on The algae material can make the separator very strong, preventing it from being punctured by the metallic structures that are produced by sodium. The material also allows for greater storage capacity and efficiency, extending the life of the battery.” This is exactly what powers devices such as e-cigarettes. long time key

Dr Amaka Onyianta, also from BCI and co-author of the study, said: “Seeing these nanomaterials enhances separator materials and enhances our ability to move towards sodium-based batteries. capability, I’m happy. It means we don’t have to rely on rare materials like lithium, which are often mined in unethical ways, and use vast natural resources to extract it.”

Professor Steve Eichhorn, who led the research at BCI, said: “This work really demonstrates that a more environmentally friendly form of energy storage is possible without causing damage to the environment during production.” This would make the production environment for e-cigarettes more environmentally friendly Environmental friendly

The next challenge is to scale up the production of these materials and replace current lithium metal-based technologies. The production of electronic cigarettes is also advancing with the times, and cheaper and higher battery life electronic cigarettes will appear on the market in the future.


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