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Optimizing Current Collector Interfaces for Efficient “Anode-Free” Lithium Metal Batteries
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2023-10-27 , DOI: 10.1002/adfm.202311301
Palanivel Molaiyan 1, 2 , Mozaffar Abdollahifar 3, 4, 5 , Buket Boz 1 , Alexander Beutl 1 , Martin Krammer 1 , Ningxin Zhang 1 , Artur Tron 1 , Martina Romio 1 , Marco Ricci 6, 7 , Rainer Adelung 3 , Arno Kwade 4, 5 , Ulla Lassi 2 , Andrea Paolella 1, 8, 9
Affiliation  

Current lithium (Li)-metal anodes are not sustainable for the mass production of future energy storage devices because they are inherently unsafe, expensive, and environmentally unfriendly. The anode-free concept, in which a current collector (CC) is directly used as the host to plate Li-metal, by using only the Li content coming from the positive electrode, could unlock the development of highly energy-dense and low-cost rechargeable batteries. Unfortunately, dead Li-metal forms during cycling, leading to a progressive and fast capacity loss. Therefore, the optimization of the CC/electrolyte interface and modifications of CC designs are key to producing highly efficient anode-free batteries with liquid and solid-state electrolytes. Lithiophilicity and electronic conductivity must be tuned to optimize the plating process of Li-metal. This review summarizes the recent progress and key findings in the CC design (e.g. 3D structures) and its interaction with electrolytes.

中文翻译:

优化集流体接口以实现高效的“无阳极”锂金属电池

目前的锂(Li)金属阳极不适合未来储能设备的大规模生产,因为它们本质上不安全、昂贵且对环境不友好。无阳极概念,即直接使用集流体(CC)作为主体来电镀锂金属,仅使用来自正极的锂含量,可以解锁高能量密度和低能量密度的发展。成本充电电池。不幸的是,在循环过程中会形成死锂金属,导致容量逐渐快速损失。因此,CC/电解质界面的优化和CC设计的修改是生产具有液态和固态电解质的高效无阳极电池的关键。必须调整亲锂性和电子传导性以优化锂金属的电镀工艺。本综述总结了 CC 设计(例如 3D 结构)及其与电解质相互作用的最新进展和主要发现。
更新日期:2023-10-27
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