Lithium Metal Anodes with Nonaqueous Electrolytes,Chemical Reviews

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Lithium Metal Anodes with Nonaqueous Electrolytes
Chemical Reviews ( IF 51.4 ) Pub Date : 2020-11-11 , DOI: 10.1021/acs.chemrev.0c00275
Ji-Guang Zhang ₁ , Wu Xu ₁ , Jie Xiao _{1,

2} , Xia Cao ₁ , Jun Liu _{1,

3}

Affiliation

High-energy rechargeable lithium (Li) metal batteries (LMBs) with Li metal anode (LMA) were first developed in the 1970s, but their practical applications have been hindered by the safety and low-efficiency concerns related to LMA. Recently, a worldwide effort on LMA-based rechargeable LMBs has been revived to replace graphite-based, Li-ion batteries because of the much higher energy density that can be achieved with LMBs. This review focuses on the recent progress on the stabilization of LMA with nonaqueous electrolytes and reveals the fundamental mechanisms behind this improved stability. Various strategies that can enhance the stability of LMA in practical conditions and perspectives on the future development of LMA are also discussed. These strategies include the use of novel electrolytes such as superconcentrated electrolytes, localized high-concentration electrolytes, and highly fluorinated electrolytes, surface coatings that can form a solid electrolyte interphase with a high interfacial energy and self-healing capabilities, development of “anode-free” Li batteries to minimize the interaction between LMA and electrolyte, approaches to enable operation of LMA in practical conditions, etc. Combination of these strategies ultimately will lead us closer to the large-scale application of LMBs which often is called the “Holy Grail” of energy storage systems.

中文翻译：

具有非水电解质的锂金属阳极

带有锂金属阳极（LMA）的高能可充电锂（Li）金属电池（LMB）最早于1970年代开发，但由于与LMA有关的安全性和低效率问题，其实际应用受到了阻碍。最近，由于基于LMA的可充电LMB可以实现更高的能量密度，因此已在全世界范围内恢复了替代基于石墨的Li-ion电池的努力。这篇综述着重于用非水电解质稳定LMA的最新进展，并揭示了这种改善的稳定性背后的基本机理。还讨论了可以在实际条件下增强LMA稳定性的各种策略，以及对LMA未来发展的看法。这些策略包括使用新型电解质，例如超浓缩电解质，

更新日期：2020-12-23

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