The development of lithium (Li)-metal anode is high priority research to initiate next-generation Li batteries. Applying Li-metal in practical applications as anode still has many hurdles to clear away, such as low Coulombic efficiency and capacity degradation by the continuous formation of dead Li. We demonstrate that cobalt (Co) nanoparticle incorporation in a porous carbon host anode can play a critical role in the formation of a thick lithium fluoride dominated solid-electrolyte interphase in ether-based electrolyte. As a result, the host anode containing Co nanoparticles shows excellent electrochemical performance with high Li-metal reversible capacity and even stable long-term cyclability with no dead Li formation.

中文翻译：

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用富含 LiF 的固体电解质中间相稳定锂金属主体负极

锂（Li）金属负极的开发是启动下一代锂电池的优先研究。在实际应用中应用锂金属作为负极仍有许多障碍需要克服，例如库仑效率低和连续形成死锂导致容量下降。我们证明了钴 (Co) 纳米颗粒掺入多孔碳主体阳极可以在醚基电解质中形成厚的氟化锂主导的固体电解质界面中发挥关键作用。因此，含有 Co 纳米颗粒的主体负极表现出优异的电化学性能，具有高锂金属可逆容量和稳定的长期循环性能，不会形成死锂。