Work

High‐Entropy Polymer Electrode for Fast Rechargeable Batteries

Year: 2026

Type: article

Abstract: ABSTRACT Polymer electrode materials possess the advantages of sustainability, abundant resources, and structural adjustability, yet suffer from poor rate capability and cycling stability. Herein, we propose a concept of molecular structure entropy for the development of a high‐entropy polymer (HEP), wherein molecular structure entropy exerts a significant regulatory effect on the physicochemical and electrochemical performance of the resulting polymer. For sodium‐based batteries, the Na||HEP cell delivers a high reversible capacity of 167.7 mAh g −1 at a current density of 1 A g −1 , a long cycling stability of 5000 cycles, and a high‐rate capability of 111.9 mAh g −1 at a current density of 10 A g −1 , outperforming the low‐entropy polymer. Moreover, the all‐organic battery shows a long stability of 15 000 cycles, corresponding to a continuous running time exceeding 200 days. This work sets a precedent for HEP electrodes and establishes a foundation for their further research.

Source: Angewandte Chemie International Edition

DOI: 10.1002/anie.6867886

Authors: Yanyao Hu, Ling Fan, Bingan Lu, Shuang‐Feng Yin

Institutions: Central South University of Forestry and Technology, Hunan University

Language: English

Topic: Advanced Battery Materials and Technologies

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: green

Funder: National Natural Science Foundation of China