Game-Changing Silicon Anode Paves the Way for Longer-Range EVs

Pohang University of Science and Technology POSTECH researchers have developed a next-generation high-energy-density Lithium-ion battery system using micro silicon particles and gel polymer electrolytes. Researchers are fervently exploring the use of silicon, known for its high storage capacity, as the anode material in lithium-ion batteries for EVs. However, despite its potential, bringing silicon into practical use remains a puzzle that researchers are still working hard to piece together.

These covalent linkages serve to disperse internal stress caused by volume expansion during lithium-ion battery operation, alleviating the changes in micro silicon volume and enhancing structural stability. The outcome was remarkable The battery exhibited stable performance even with micro silicon particles 5μm, which were a hundred times larger than those used in traditional nano-silicon anodes.

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