[China's Scientists Make Significant Research Progress in the Field of Solid-State Battery Polymer Electrolytes] A team led by Professor Zhang Qiang from the Department of Chemical Engineering at Tsinghua University has recently achieved important progress in the research of lithium battery polymer electrolytes, providing new ideas and technical support for the development of practical, high-safety, and high-energy-density solid-state lithium batteries. The related findings have been published online in *Nature*.