当前位置: X-MOL 学术J. Electrochem. Soc. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Rechargeable Li/O2 Cell Based on a LiTFSI-DMMP/PFSA-Li Composite Electrolyte
Journal of The Electrochemical Society ( IF 3.1 ) Pub Date : 2012-01-01 , DOI: 10.1149/2.012212jes
Hong Wang , Xiao-Zhen Liao , Lei Li , He Chen , Qi-Zhong Jiang , Yu-Shi He , Zi-Feng Ma

The non-aqueous rechargeable Li-O2 battery has been actively studied since firstly reported by Jiang and Abraham because of its ultrahigh theoretical specific energy density. The organic electrolyte system has the advantages of simple structure and being able to avoid the dangerous reaction between lithium and water. However, rechargeable Li-O2 battery is still far from being a practical technology. The electrolyte is the major challenge. An ideal electrolyte for Li-O2 battery must not only exhibit high Li conductivity, sufficient O2 solubility and good diffusion to ensure excellent rate performance, but also show low volatility and be stable to O2 and its reduced species. Unfortunately, practically useful electrolytes with all the above characteristics have not been available till now. The most commonly used electrolytes in Li-O2 battery are based on organic carbonate solvents especially with PC or PC with cosolvents. However, it has been reported that such electrolytes decompose in Li-O2 battery on discharge. Recently, many research groups have contributed to investigation on searching for suitable electrolytes. Organic phosphates are known as commonly used fire retardant liquids. It is found that some liquid phosphates exhibited suitable electrochemical properties for battery applications. Dimethyl methyl phosphonate (DMMP) has demonstrated good performance when used as pure electrolyte solvent for lithium batteries. DMMP solvent possesses necessary physiochemical properties required for lithium battery application: wide liquidus temperature range (−50 to 181 °C), low viscosity (cP~

中文翻译:

基于 LiTFSI-DMMP/PFSA-Li 复合电解质的可充电 Li/O2 电池

由于其超高的理论比能量密度,非水可充电 Li-O2 电池自由 Jiang 和 Abraham 首次报道以来一直受到积极研究。该有机电解质体系结构简单,可避免锂与水发生危险的反应。然而,可充电锂氧电池仍远未成为实用技术。电解质是主要挑战。Li-O2 电池的理想电解质不仅必须具有高的锂电导率、足够的 O2 溶解度和良好的扩散性以确保优异的倍率性能,而且还必须表现出低挥发性和对 O2 及其还原物种稳定。不幸的是,具有所有上述特性的实用电解质直到现在还没有可用。Li-O2 电池中最常用的电解质基于有机碳酸酯溶剂,尤其是 PC 或 PC 与共溶剂。然而,据报道,这种电解质在 Li-O2 电池中会在放电时分解。最近,许多研究小组对寻找合适的电解质的研究做出了贡献。有机磷酸盐被称为常用的阻燃液体。发现一些液体磷酸盐表现出适合电池应用的电化学性质。甲基膦酸二甲酯 (DMMP) 在用作锂电池的纯电解质溶剂时表现出良好的性能。DMMP 溶剂具有锂电池应用所需的必要理化性质:宽液相线温度范围(-50 至 181 °C)、低粘度(cP~ 据报道,这种电解质在 Li-O2 电池中会在放电时分解。最近,许多研究小组对寻找合适的电解质的研究做出了贡献。有机磷酸盐被称为常用的阻燃液体。发现一些液体磷酸盐表现出适合电池应用的电化学性质。甲基膦酸二甲酯 (DMMP) 在用作锂电池的纯电解质溶剂时表现出良好的性能。DMMP 溶剂具有锂电池应用所需的必要理化性质:宽液相线温度范围(-50 至 181 °C)、低粘度(cP~ 据报道,这种电解质在 Li-O2 电池中会在放电时分解。最近,许多研究小组对寻找合适的电解质的研究做出了贡献。有机磷酸盐被称为常用的阻燃液体。发现一些液体磷酸盐表现出适合电池应用的电化学性质。甲基膦酸二甲酯 (DMMP) 在用作锂电池的纯电解质溶剂时表现出良好的性能。DMMP 溶剂具有锂电池应用所需的必要理化性质:宽液相线温度范围(-50 至 181 °C)、低粘度(cP~ 有机磷酸盐被称为常用的阻燃液体。发现一些液体磷酸盐表现出适合电池应用的电化学性质。甲基膦酸二甲酯 (DMMP) 在用作锂电池的纯电解质溶剂时表现出良好的性能。DMMP 溶剂具有锂电池应用所需的必要理化性质:宽液相线温度范围(-50 至 181 °C)、低粘度(cP~ 有机磷酸盐被称为常用的阻燃液体。发现一些液体磷酸盐表现出适合电池应用的电化学性质。甲基膦酸二甲酯 (DMMP) 在用作锂电池的纯电解质溶剂时表现出良好的性能。DMMP 溶剂具有锂电池应用所需的必要理化性质:宽液相线温度范围(-50 至 181 °C)、低粘度(cP~
更新日期:2012-01-01
down
wechat
bug