Large-Scale Nanofiber Manufacturing| An anisotropicstrategyfor developing polymerelectrolytesendowinglithium metal batteries withelectrochemo-mechanicallystableinterface

Professor Wang Haihui from Tsinghua University et al. Nat. Commun. (IF 14.7): Anisotropic Polymer Electrolytes for Electrochemically-Mechanically Stable Interfaces in Lithium Metal Batteries

Challenge: Developing multifunctional solid polymer electrolytes is a rational approach to achieve reliable lithium metal batteries, but remains challenging due to sluggish lithium ion kinetics and insufficient mechanical strength leading to uneven lithium deposition.

Approach: Professor Wang Haihui from Tsinghua University, Zhang Zheng and Researcher Wang Suqing from South China University of Technology realized the concept of developing anisotropic solid polymer electrolytes by combining a polymer matrix with highly aligned polyacrylonitrile nanofibers modified with Li6.4La3Zr1.4Ta0.6O12 particles.

Innovation 1: The Li||LiFePO4 battery demonstrated stable operation for over 1000 cycles, achieving 91% durable capacity retention at a current density of 170 mA g-1.

Innovation 2: Numerical modeling and density functional theory (DFT) calculations were combined to elucidate the multiphysics interactions between the designed solid polymer electrolyte and Li anode.

https://www.nature.com/articles/s41467-025-58056-2