Unlocking Ultra‐Long Cycle Stability of Li Metal Electrode by Separators Modified by Porous Red Phosphorus Nanosheets
Abstract By surface‐decorating a conventional polypropylene separator with a porous red phosphorus nanosheet, it is demonstrated exceptional cycling performance of the Li metal electrode in both Li||Li symmetric cells, achieving over 9000 h of cycle life at 20 mA cm −2 and 10 mA h cm −2 , as well as in Li (20 µm)||LiFePO 4 full cells, which exhibited over 95% capacity retention after 400 cycles at a 2C rate. Experimental evidence and theoretical calculations attribute the ultra‐long cycle stability to the unique structural, chemical, and electronic features of red phosphorus, which facilitate rapid Li + transfer and promote the formation of an inorganic‐dominant solid electrolyte interphase (SEI) composition rich in LiF.
Authors
- Yao Gao (ORCID: https://orcid.org/0000-0001-8308-4729)
- Feng Lang (ORCID: https://orcid.org/0000-0002-0966-1409)
- Bolong Huang (ORCID: https://orcid.org/0000-0002-2526-2002)
- Xitao Hu (ORCID: https://orcid.org/0000-0002-2543-445X)
- Chao Lin (ORCID: https://orcid.org/0000-0002-4803-5945)
- Mingzi Sun (ORCID: https://orcid.org/0000-0001-5136-7265)
- Zhijun Cai (ORCID: https://orcid.org/0009-0007-8400-2204)
- Quan Li (ORCID: https://orcid.org/0000-0001-8563-1802)
- Xueqiang Zhang
- Jiangpeng Wang (ORCID: https://orcid.org/0000-0001-7007-1515)
Institutions
- Beijing Institute of Technology (CN)
- Hong Kong Polytechnic University (HK)
- City University of Hong Kong (HK)
- Chinese University of Hong Kong (HK)
Publication Details
- Journal
- Advanced Functional Materials
- Published
- 2025-05-07
- DOI
- https://doi.org/10.1002/adfm.202501402
- Citations
- 1
- Primary Topic
- Advancements in Battery Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.73
Funders
- Innovation and Technology Commission