Chinese Scientists Make Strides Towards Durable, High-Capacity, and Affordable Lithium-Sulfur Batteries

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Researchers worldwide are on the hunt for new battery chemistries that can enhance the performance of traction batteries in electric vehicles across multiple criteria. Chinese scientists have made significant advancements in improving the composition of lithium-sulfur batteries, increasing their operational lifespan without compromising other essential characteristics.

Lithium-sulfur batteries employ sulfur-based cathodes, which not only reduce production costs but also double the battery’s capacity compared to lithium-ion counterparts. However, prior lithium-sulfur battery prototypes suffered from a limited operational lifespan, enduring only a finite number of charge and discharge cycles. Both liquid and solid electrolyte versions struggled to surpass a thousand such cycles.

According to reports by Nikkei Asian Review, researchers from the Chinese Academy of Sciences have successfully developed a lithium-sulfur battery capable of retaining up to 70% of its initial capacity after 1400 charge and discharge cycles. This breakthrough brings lithium-sulfur batteries closer to commercial viability.

The innovation proposed by the Chinese researchers involves combining carbon nanotubes with sulfur. This particular structure facilitates the improved movement of ions and electrons, as pure sulfur is a poor electrical conductor. This development is expected to pave the way for practical, highly efficient lithium-sulfur batteries with solid electrolytes.

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Vasyl Kolomiiets
Vasyl Kolomiiets
I'm Vasyl Kolomiiets, a seasoned tech journalist regularly contributing to global publications. Having a profound background in information technologies, I seamlessly blended my technical expertise with my passion for writing, venturing into technology journalism. I've covered a wide range of topics including cutting-edge developments and their impacts on society, contributing to leading tech platforms.

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