可弯折超20000次！我国锂电池领域再获重要突破

Core Insights - Researchers at the Institute of Metal Research, Chinese Academy of Sciences, have developed a new type of polymer material that enables rapid ion transport and efficient storage at the molecular level, providing a novel solution to enhance the performance of solid-state lithium batteries [1] Group 1: Solid-State Lithium Battery Technology - Solid-state lithium batteries are considered a key direction for next-generation energy storage due to their high safety and energy density [1] - Traditional solid-state batteries face challenges with high interfacial impedance and low ion transport efficiency due to the clear division of functions between solid electrolytes and electrode materials [1] Group 2: New Polymer Material Development - The newly developed polymer material integrates fast ion transport channels and energy storage functions through covalent bonds, addressing the limitations of traditional designs [1] - The integrated flexible battery constructed from this material demonstrates excellent mechanical stability, capable of bending over 20,000 times without performance degradation [1] Group 3: Performance Enhancements - When used as a polymer electrolyte in conjunction with traditional lithium iron phosphate electrodes, the hidden energy storage capacity of the electrolyte can be activated at specific potentials, resulting in an 86% increase in the energy density of the composite electrode [1]