Foreign countries will develop the next generation of lithium metal batteries that will last longer, charge faster and be safer

　　In the study, funded by the U.S. Department of Energy, researchers developed a three-dimensional cross-linked polymer sponge that adheres to the metal plating on the battery anode.

　　According to foreign media reports, on November 12, local time, research results published by Pennsylvania State University (pennState) in the journal Nature Energy showed that it is possible to achieve longer-lasting, faster-charging and safer lithium metal batteries. In this study, funded by the U.S. Department of Energy (the U.S. Department of Energy), researchers developed a three-dimensional cross-linked polymer sponge that can be attached to the metal coating of the battery anode.

　　"This project aims to develop the next generation of lithium metal batteries," said Donghai Wang, professor of mechanical engineering at Penn State and lead researcher on the project. "Lithium metal has been tried in batteries for decades, but there are some fundamental issues that have hindered the development of lithium metal batteries." "

　　Under additional strain, such as when electric vehicles require fast charging methods, lithium-ion batteries (Li) are susceptible to dendrite growth (needle-like structures), which shortens battery cycle life and may cause safety-threatening issues such as fire or explosion. Professor Wang said: "Our method is to use polymers on the lithium metal interface. The material is a porous sponge that not only allows lithium ions to transfer, but also inhibits lithium ions from deteriorating, even under low temperature and fast charging conditions. It can prevent metal plating from growing dendrites.”

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