Lithiated Nafion membrane as a single-ion conducting polymer electrolyte in lithium batteries

IF 3.6 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Materials for Renewable and Sustainable Energy Pub Date : 2024-03-06 DOI:10.1007/s40243-023-00249-0
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Abstract

Single lithium-ion conducting polymer electrolytes are promising candidates for next generation safer lithium batteries. In this work, Li+-conducting Nafion membranes have been synthesized by using a novel single-step procedure. The Li-Nafion membranes were characterized by means of small-wide angle X-ray scattering, infrared spectroscopy and thermal analysis, for validating the proposed lithiation method. The obtained membranes were swollen in different organic aprotic solvent mixtures and characterized in terms of ionic conductivity, electrochemical stability window, lithium stripping-deposition ability and their interface properties versus lithium metal. The membrane swollen in ethylene carbonate:propylene carbonate (EC:PC, 1:1 w/w) displays good temperature-activated ionic conductivities (σ ≈ 5.5 × 10–4 S cm−1 at 60 °C) and a more stable Li-electrolyte interface with respect to the other samples. This Li-Nafion membrane was tested in a lithium-metal cell adopting LiFePO4 as cathode material. A specific capacity of 140 mAhg−1, after 50 cycles, was achieved at 30 °C, demonstrating the feasibility of the proposed Li-Nafion membrane.

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锂化 Nafion 膜作为锂电池中的单离子导电聚合物电解质
摘要 单一锂离子传导聚合物电解质是下一代更安全锂电池的理想候选材料。本研究采用新颖的单步法合成了锂离子传导 Nafion 膜。通过小广角 X 射线散射、红外光谱和热分析对锂-Nafion 膜进行了表征,以验证所提出的石化方法。将获得的膜在不同的有机烷基混合溶剂中溶胀,并从离子电导率、电化学稳定窗口、锂剥离沉积能力及其与锂金属的界面特性等方面对其进行表征。与其他样品相比,在碳酸乙烯酯:碳酸丙烯酯(EC:PC,1:1 w/w)中溶胀的膜显示出良好的温度激活离子电导率(σ ≈ 5.5 × 10-4 S cm-1,60 °C)和更稳定的锂电解质界面。在采用磷酸铁锂作为阴极材料的锂金属电池中测试了这种锂-负离子膜。在 30 °C 下循环 50 次后,比容量达到 140 mAhg-1,这证明了所建议的锂-萘非离子膜的可行性。
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来源期刊
Materials for Renewable and Sustainable Energy
Materials for Renewable and Sustainable Energy MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
7.90
自引率
2.20%
发文量
8
审稿时长
13 weeks
期刊介绍: Energy is the single most valuable resource for human activity and the basis for all human progress. Materials play a key role in enabling technologies that can offer promising solutions to achieve renewable and sustainable energy pathways for the future. Materials for Renewable and Sustainable Energy has been established to be the world''s foremost interdisciplinary forum for publication of research on all aspects of the study of materials for the deployment of renewable and sustainable energy technologies. The journal covers experimental and theoretical aspects of materials and prototype devices for sustainable energy conversion, storage, and saving, together with materials needed for renewable fuel production. It publishes reviews, original research articles, rapid communications, and perspectives. All manuscripts are peer-reviewed for scientific quality. Topics include: 1. MATERIALS for renewable energy storage and conversion: Batteries, Supercapacitors, Fuel cells, Hydrogen storage, and Photovoltaics and solar cells. 2. MATERIALS for renewable and sustainable fuel production: Hydrogen production and fuel generation from renewables (catalysis), Solar-driven reactions to hydrogen and fuels from renewables (photocatalysis), Biofuels, and Carbon dioxide sequestration and conversion. 3. MATERIALS for energy saving: Thermoelectrics, Novel illumination sources for efficient lighting, and Energy saving in buildings. 4. MATERIALS modeling and theoretical aspects. 5. Advanced characterization techniques of MATERIALS Materials for Renewable and Sustainable Energy is committed to upholding the integrity of the scientific record. As a member of the Committee on Publication Ethics (COPE) the journal will follow the COPE guidelines on how to deal with potential acts of misconduct. Authors should refrain from misrepresenting research results which could damage the trust in the journal and ultimately the entire scientific endeavor. Maintaining integrity of the research and its presentation can be achieved by following the rules of good scientific practice as detailed here: https://www.springer.com/us/editorial-policies
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