
Research progress of polymer in high capacity and high safety lithium-based battery
Jiaqi WANG, Zhiyong WANG, Yanyan LI, Mingming YU, Hui WANG
Research progress of polymer in high capacity and high safety lithium-based battery
Lithium-based batteries (LBBs) are widely used in portable electronic devices and electric vehicles, serving as a pivotal component in both current and emerging energy storage technologies. Lithium-sulfur batteries are considered as the ideal choice for the next generation of high-energy density batteries due to their high energy density (2600 Wh·kg-1). Due to the unique long chain structure and high adhesion force of polymer materials, it shows excellent performance advantages in the application of lithium-sulfur battery binder. This paper reviews the latest research progress and application prospect of polymer materials in improving the safety and stability of lithium batteries. The application of polymer materials in modified separators, solid state electrolytes, binders and flame retardants for LBBs is mainly discussed. In addition, the inhibition ability and mechanism of polymer artificial solid state electrolyte interface film and solid state electrolyte on dendrite growth are introduced, and the flame retardant property of polymer and its mechanism as solid state electrolyte are pointed out. Finally, based on the excellent plasticity and chemical controllability of polymers, the potential of high ionic conductivity and interface stability achieved by molecular design in LBBs energy storage is prospected.
lithium-based battery / polymer material / lithium-sulfur battery / solid state electrolyte / battery binder
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