Energetic and durable all-polymer aqueous battery for sustainable, flexible power
All-polymer aqueous batteries, featuring electrodes and electrolytes made entirely from polymers, advance wearable electronics through their processing ease, inherent safety, and sustainability. Challenges persist with the instability of polymer electrode redox products in aqueous environments, which fail to achieve high performance in all-polymer aqueous batteries. Here, we report a polymer-aqueous electrolyte designed to stabilize polymer electrode redox products by modulating the solvation layers and forming a solid-electrolyte interphase. Polyaniline is selected as an example for its dual functionality as a cathode or anode working by p/n doping mechanisms. This approach pioneers the application of polyaniline as an anode and enhances the high-voltage stability of polyaniline cathode in an aqueous electrolyte. The resulting all-polymer aqueous sodium-ion battery with polyaniline as symmetric electrodes exhibits a high capacity of 139 mAh/g, energy density of 153 Wh/kg, and a retention of over 92% after 4800 cycles. Spectroscopic characterizations have elucidated the hydration structure, solid-electrolyte interphase, and dual-ion doping mechanism. Large-scale all-polymer flexible batteries are fabricated with excellent flexibility and recyclability, heralding a paradigmatic approach to sustainable, wearable energy storage.
Authors
- Huarui Sun (ORCID: https://orcid.org/0000-0003-1429-0611)
- Ruhong Li (ORCID: https://orcid.org/0000-0003-0458-8182)
- Dong Zhou (ORCID: https://orcid.org/0000-0002-2578-7124)
- Kangkang Jia
- Qimin Liang
- Hong Yang (ORCID: https://orcid.org/0000-0003-2860-5901)
- Xiaoli Dong (ORCID: https://orcid.org/0000-0002-3267-7548)
- Xiulin Fan (ORCID: https://orcid.org/0000-0001-7294-480X)
- Sisi He (ORCID: https://orcid.org/0000-0002-1722-660X)
- Yueyu Zhang (ORCID: https://orcid.org/0000-0001-8460-268X)
- Junlin Jia
- Qiang Gao (ORCID: https://orcid.org/0000-0002-9750-5923)
- Jing Chen (ORCID: https://orcid.org/0000-0002-6238-6696)
- Ziyuan Li (ORCID: https://orcid.org/0000-0001-8029-9804)
Institutions
- Ningbo University (CN)
- East China University of Science and Technology (CN)
- Wenzhou University (CN)
- Shenzhen Institute of Information Technology (CN)
- Harbin Institute of Technology (CN)
- Fudan University (CN)
- Tsinghua–Berkeley Shenzhen Institute (CN)
- Collaborative Innovation Center of Chemistry for Energy Materials (CN)
- University of Chinese Academy of Sciences (CN)
- The University of Tokyo (JP)
- Zhejiang University (CN)
- Yangzhou University (CN)
- Tsinghua University (CN)
Publication Details
- Journal
- Nature Communications
- Published
- 2024-11-05
- DOI
- https://doi.org/10.1038/s41467-024-53804-2
- Citations
- 37
- Primary Topic
- Advanced battery technologies research
- Type
- article
- Field-Weighted Citation Impact
- 7.72
Funders
- Salt Science Research Foundation
- National Natural Science Foundation of China
- East China University of Science and Technology
- Basic and Applied Basic Research Foundation of Guangdong Province