Ellison James H J, Grey Clare P
Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK.
Faraday Discuss. 2024 Jan 29;248(0):355-380. doi: 10.1039/d3fd00091e.
Lithium-air batteries promise exceptional energy density while avoiding the use of transition metals in their cathodes, however, their practical adoption is currently held back by their short lifetimes. These short lifetimes are largely caused by electrolyte breakdown, but despite extensive searching, an electrolyte resistant to breakdown has yet to be found. This paper considers the requirements placed on an electrolyte for it to be considered usable in a practical cell. We go on to examine ways, through judicious cell design, of relaxing these requirements to allow for a broader range of compounds to be considered. We conclude by suggesting types of molecules that could be explored for future cells. With this work, we aim to broaden the scope of future searches for electrolytes and inform new cell design.
锂空气电池有望实现卓越的能量密度，同时在其阴极避免使用过渡金属，然而，它们目前的实际应用因寿命短而受阻。这些短寿命主要是由电解质分解造成的，但尽管进行了广泛的探索，仍未找到一种抗分解的电解质。本文考虑了对一种电解质的要求，使其被认为可用于实际电池中。我们接着研究通过明智的电池设计来放宽这些要求的方法，以便能够考虑更广泛的化合物。我们最后提出了可用于未来电池探索的分子类型。通过这项工作，我们旨在拓宽未来电解质搜索的范围，并为新的电池设计提供参考。
