Nanoconfined Polymerization Facilitates Efficient Li <sup>+</sup> Transportation in Quasi‐Solid Electrolytes
Abstract Conventional gel polymer electrolytes (GPEs) struggle with lithium dendrite growth and long‐term cycling stability due to low ionic conductivity. A nanoconfined polymerization (NCP) strategy was employed to develop a composite GPE (PDA@CityU‐43) comprising porous COF and linear polymers. The crosslinked polymer chains are confined within the nanopores of CityU‐43 along c ‐direction, improving polymer distribution and filler‐polymer compatibility. The PDA@CityU‐43 achieves a high ionic conductivity (6.02 × 10 −3 S cm −1 at 25 °C) and a high Li + transference number (0.82), which is favorable to enhance Li + transport dynamics and induce uniform Li + deposition. Thus, the Li||Li cell can stably operate over 6000 h at 0.1 mA cm −2 and 0.1 mAh cm −2 . The Li||PDA@CityU‐43||LFP demonstrates significantly improved cycling stability at 5C, a reversible capacity of 108 mAh/g after 300 cycles. The Li||PDA@CityU‐43||NCM 811 cells with high mass loading (∼5.8 mg cm −2 ) exhibits 72.5% capacity retention after 100 cycles. This NCP strategy offers a new approach to designing advanced GPEs for Li metal batteries.
Authors
- Chun‐Sing Lee (ORCID: https://orcid.org/0000-0001-6557-453X)
- Tuoya Naren (ORCID: https://orcid.org/0009-0000-2963-4910)
- Fu‐Rong Chen (ORCID: https://orcid.org/0000-0003-4707-6590)
- Gui‐Chao Kuang (ORCID: https://orcid.org/0000-0002-6682-8260)
- Qianfeng Gu (ORCID: https://orcid.org/0000-0003-4581-9565)
- Ruheng Jiang
- Antai Zhu
- Libao Chen (ORCID: https://orcid.org/0000-0002-3766-1545)
- Xiang Wang (ORCID: https://orcid.org/0000-0001-6144-9301)
- Qichun Zhang (ORCID: https://orcid.org/0000-0003-1854-8659)
- Lei Zhang (ORCID: https://orcid.org/0000-0003-1237-3229)
- Yanwei Zhao
- Jinghang Wu (ORCID: https://orcid.org/0000-0003-0479-8841)
- Zhanxu Zheng
Institutions
- Qingdao University (CN)
- Central South University (CN)
- Qingdao University of Science and Technology (CN)
- City University of Hong Kong (HK)
- City University of Hong Kong, Shenzhen Research Institute (CN)
- State Key Laboratory of Powder Metallurgy
Publication Details
- Journal
- Angewandte Chemie
- Published
- 2025-06-11
- DOI
- https://doi.org/10.1002/ange.202509921
- Citations
- 4
- Primary Topic
- Advanced Battery Materials and Technologies
- Type
- article
- Field-Weighted Citation Impact
- 2.92
Funders
- City University of Hong Kong
- National Natural Science Foundation of China
- Innovation and Technology Fund
- State Key Laboratory of Supramolecular Structure and Materials
- Shenzhen Science and Technology Innovation Program