Enabling low-temperature sodium metal batteries <i>via</i> a multifunctional electrolyte additive
Tetrahydrofuran (THF) excels as a low-temperature electrolyte solvent for sodium metal batteries. However, trace water can often induce the ring-opening polymerization of THF, leading to gelation/loss of conductivity and deterioration of interfacial charge transfer kinetics. Accordingly, we introduced tris(pentafluorophenyl)borane to inhibit polymerization, improve Na<sup>+</sup> migration, and optimize the interphase, achieving stable Na deposition/stripping (2.0 mA cm<sup>-2</sup>, 1000 hours, and -20 °C). Under 10.0 A g<sup>-1</sup>, the Na<sub>3</sub>V<sub>2</sub> (PO<sub>4</sub>)<sub>3</sub>/Na full cell maintains a capacity of 66.0 mAh g<sup>-1</sup> after 1000 cycles at -20 °C.
Authors
- Tianyi Wang (ORCID: https://orcid.org/0000-0002-0961-5285)
- Jiabao Li (ORCID: https://orcid.org/0000-0001-5471-877X)
- Chengyin Wang (ORCID: https://orcid.org/0000-0001-6831-6675)
- Jinliang Li (ORCID: https://orcid.org/0000-0002-2200-5123)
- Zhushun Zhang (ORCID: https://orcid.org/0000-0002-2200-5123)
Institutions
- Jinan University (CN)
- Yangzhou University (CN)
Publication Details
- Journal
- Chemical Communications
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5cc04817f
- Citations
- 1
- Primary Topic
- Advanced Battery Materials and Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.73