近日，山东大学李国兴团队研究了用于可持续固态电池的可回收图灵结构聚合物电解质。相关论文于2025年11月18日发表在《德国应用化学》杂志上。

固态聚合物电解质在离子电导率、离子迁移数和可回收性方面存在显著局限。

研究组报道了一种可在气/液/固界面通过蒸发/扩散驱动不稳定性制备的可回收图灵结构聚合物电解质。该图灵结构具有快速离子传导表面/通道，其周期性锂离子自浓缩域可形成三维渗流锂离子传导网络，通过降低迁移势垒实现了高锂离子电导率（25℃下达1.6 × 10^-3 S cm^-1）与迁移数（0.61）。该电解质在低温条件（-20℃）下能使多种固态电池实现稳定循环性能，同时具备优异的自修复、阻燃和可回收特性。闭环回收可回收86.5%的聚合物前驱体与82.6%的成本昂贵的双三氟甲基磺酰亚胺锂盐，且再生电解质仍保持初始性能。这些成果凸显了图灵结构作为可持续高性能储能与转换系统的可扩展设计范式的潜力。

附：英文原文

Title: Recyclable Turing-Structured Polymer Electrolytes for Sustainable Solid-State Batteries

Author: Jingteng Zhao, Zhongqiang Wang, Cong Tian, Huang Xiao, Jian Gao, Xin Cheng, Congying Song, Fang Li, Guoxing Li

Issue&Volume: 2025-11-18

Abstract: Solid polymer electrolytes (SPEs) face critical limitations in ionic conductivity, ion transference numbers, and recyclability. We report a recyclable Turing-structured polymer electrolyte (TPE) prepared at gas/liquid/solid interface through evaporation/diffusion-driven instability. The Turing structure provides fast ion-conduction surfaces/channels with periodic lithium (Li)-ion (Li+) self-concentration domains to enable a 3D percolating Li+ conduction, reducing migration barriers to achieve a high Li+ conductivity (1.6 × 103 S cm1 at 25 °C) and transference number (0.61). TPEs enable stable cycling performance in various solid-state batteries at low-temperature conditions (20 °C), alongside excellent self-healing, flame-retardant, and recyclable properties. Closed-loop recycling recovers 86.5% of polymer precursors and 82.6% of costly Li bis(trifluoromethanesulfonyl)imide (LiTFSI) salt, with regenerated electrolytes retaining their initial performance. These results highlight the potential of Turing structure as a scalable design paradigm for sustainable and high-performance energy storage and conversion systems.

DOI: 10.1002/anie.202519178

Source: https://onlinelibrary.wiley.com/doi/10.1002/anie.202519178