Practical Lithium Air Batteries

实用锂空气电池

• 批准号: EP/L505262/1
• 负责人: Johan Jacquemin
• 金额: $ 47.63万
• 依托单位: Queen's University Belfast
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2013
• 资助国家: 英国
• 起止时间: 2013 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FL505262%2F1
• 关键词: Practical; Lithium; Air; Batteries

This project is centred around the development of a practical lithium air battery single cell with improved performance. Theproject consortium includes Queens University Belfast and Liverpool University as academic partners and JohnsonMatthey, Axeon, JLR and Air Products as the industrial partners.The instability of existing electrolytes to superoxides is a major barrier to achieving good cycle life in current laboratoryscale Li-air cells, due to capacity fade as a result of the formation of irreversible species from solvent decomposition thatoccurs if current Lithium ion battery organic electrolytes are used. Therefore, significant effort will focus on synthesisingnovel electrolytes capable of surviving operation in Li-air batteries, where a large operational voltage window and immunityto degradation from superoxide attack are key features, combined with practical levels of oxygen solubility and ionicconductivity. Novel ionic liquid electrolytes and blends will be synthesised using the expertise at QUB and also drawing onempirical and modelling results already available in the literature, relating to solvent stability in the presence of superoxide.Novel anode and cathode materials and catalysts will be prepared and tested (JM) in combination with improvedelectrolytes synthesised in the project (JM). Emphasis will also be placed on optimising cathode structures for the novelelectrolytes to achieve improved capacity, current density and cycle life (JM, Axeon). Understanding the cathode reactionsoxygen reduction during discharge and oxygen evolution during charge with new electrolytes via iR and Ramanspectroelectrochemistry techniques will be undertaken (Liverpool University) and the behaviour at the anode interface inthe novel electrolytes will also be explored. The wide variety of analytical techniques available via the different projectpartners including XPS, ATR, electron microscopy and electrochemical measurements will be applied within the project.Cell testing studies will investigating the effects of various parameters, pressure, temperature , charge rate, the effect ofcarbon dioxide and water impurities in inlet air and possible inlet air clean up strategies also be considered (JM, Axeon, AirProducts, JLR).The key outputs from the project will be an optimised single cell configuration with the best electrolyte, electrode materialand electrode structure combination, accompanied by understanding of the electrochemistry and the effect of cathodestructure and test parameters on battery performance and cyclability. These data contribute toward establishing thefeasibility of lithium air battery technology and will lay a firm foundation for future development of larger scaledemonstration systems .

该项目的重点是开发性能改进的实用锂空气电池单体电池。该项目联盟包括贝尔法斯特女王大学和利物浦大学作为学术合作伙伴，以及庄信万丰、Axeon、捷豹路虎和空气产品公司作为工业合作伙伴。现有电解质对超氧化物的不稳定性是当前实验室规模锂空气电池实现良好循环寿命的主要障碍，因为如果电流过大，溶剂分解会形成不可逆物质，导致容量衰减。 锂离子电池采用有机电解液。因此，重要的工作将集中在合成能够在锂空气电池中运行的新型电解质，其中大的工作电压窗口和免受超氧化物攻击降解的能力是关键特征，并结合实际水平的氧溶解度和离子电导率。将利用 QUB 的专业知识合成新型离子液体电解质和混合物，并借鉴文献中已有的与超氧化物存在下溶剂稳定性相关的经验和建模结果。将结合项目中合成的改进电解质 (JM) 来制备和测试新型阳极和阴极材料和催化剂 (JM)。重点还将放在优化新型电解质的阴极结构上，以提高容量、电流密度和循环寿命（JM、Axeon）。将通过 iR 和拉曼光谱电化学技术了解新电解质在放电过程中的阴极反应氧还原和充电过程中的氧析出（利物浦大学），并且还将探索新型电解质中阳极界面的行为。该项目将应用不同项目合作伙伴提供的各种分析技术，包括 XPS、ATR、电子显微镜和电化学测量。电池测试研究将调查各种参数、压力、温度、充电速率的影响、进气中二氧化碳和水杂质的影响以及可能的进气净化策略（JM、Axeon、AirProducts、 JLR）。该项目的主要成果将是具有最佳电解质、电极材料和电极结构组合的优化单电池配置，同时了解电化学以及阴极结构和测试参数对电池性能和循环性能的影响。这些数据有助于建立锂空气电池技术的可行性，并将为未来开发更大规模的示范系统奠定坚实的基础。

项目成果

Mixtures of azepanium based ionic liquids and propylene carbonate as high voltage electrolytes for supercapacitors

• DOI: 10.1016/j.electacta.2014.11.189
• 发表时间: 2015-01
• 期刊: Electrochimica Acta
• 影响因子: 6.6
• 作者: S. Pohlmann;T. Olyschläger;P. Goodrich;J. Vicente;J. Jacquemin;A. Balducci

An ether-functionalised cyclic sulfonium based ionic liquid as an electrolyte for electrochemical double layer capacitors

• DOI: 10.1016/j.jpowsour.2016.06.085
• 发表时间: 2016-09-15
• 期刊: JOURNAL OF POWER SOURCES
• 影响因子: 9.2
• 作者: Neale, Alex R.;Murphy, Sinead;Jacquemin, Johan
• 通讯作者: Jacquemin, Johan

Acyclic and Cyclic Alkyl and Ether-Functionalised Sulfonium Ionic Liquids Based on the [TFSI]- and [FSI]- Anions as Potential Electrolytes for Electrochemical Applications.

• DOI: 10.1002/cphc.201800804
• 发表时间: 2018-10
• 期刊: Chemphyschem : a European journal of chemical physics and physical chemistry
• 作者: Sinead Murphy;Flavien Ivol;A. R. Neale;P. Goodrich;F. Ghamouss;C. Hardacre;J. Jacquemin

Physical-Chemical Characterization of Binary Mixtures of 1-Butyl-1-methylpyrrolidinium Bis{(trifluoromethyl)sulfonyl}imide and Aliphatic Nitrile Solvents as Potential Electrolytes for Electrochemical Energy Storage Applications

• DOI: 10.1021/acs.jced.6b00718
• 发表时间: 2017-01-01
• 期刊: JOURNAL OF CHEMICAL AND ENGINEERING DATA
• 作者: Neale, Alex R.;Schuetter, Christoph;Jacquemin, Johan
• 通讯作者: Jacquemin, Johan

Synthesis and Thermophysical Properties of Ether-Functionalized Sulfonium Ionic Liquids as Potential Electrolytes for Electrochemical Applications.

• DOI: 10.1002/cphc.201600882
• 发表时间: 2016-12-05
• 期刊: Chemphyschem : a European journal of chemical physics and physical chemistry
• 作者: Coadou E;Goodrich P;Neale AR;Timperman L;Hardacre C;Jacquemin J;Anouti M
• 通讯作者: Anouti M