Hao Zhimeng, Lu Yong, Yang Gaojing, Zhao Qi, Yan Zhenhua, Chen Jun
Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), State Key Laboratory of Advanced Chemical Power Sources, College of Chemistry, Nankai University, Tianjin, 300071, China.
School of Chemistry, Tiangong University, Tianjin, 300387, China.
Adv Mater. 2025 Feb;37(8):e2415258. doi: 10.1002/adma.202415258. Epub 2025 Jan 5.
Rechargeable batteries employing Li metal anodes have gained increasing attention due to their high energy density. Nevertheless, low stability and reversibility of Li metal anodes severely impeded their practical applications. Designing current collectors (CCs) with reasonable structure and composition is an efficient approach to stabilizing the Li metal anodes. However, an in-depth comprehensive understanding about the design principles and modification strategies of CCs for realizing stable Li metal anodes is still lacking. Herein, a critical review focusing on the rational design of CCs for Li metal anodes is summarized. First, the requirements for CCs in Li metal anodes are elucidated to clarify the design objectives of CCs. Then, the modification strategies of CCs including lithiophilic site modification, 3D architecture construction, protective layer modification, and crystalline plane engineering, as well as the corresponding principles are highlighted. On this basis, the recent progress in the development of CCs for Li metal anodes is discussed. Finally, future directions are suggested to focus on developing operando monitoring technology, and designing the CCs and cells under practical conditions close to the requirements of commercial applications. This review will spur more insightful researches toward advanced CCs, and promote their commercialization.
采用锂金属负极的可充电电池因其高能量密度而受到越来越多的关注。然而，锂金属负极的低稳定性和可逆性严重阻碍了它们的实际应用。设计具有合理结构和组成的集流体是稳定锂金属负极的有效方法。然而，对于实现稳定锂金属负极的集流体的设计原则和改性策略仍缺乏深入全面的理解。在此，总结了一篇关于锂金属负极集流体合理设计的批判性综述。首先，阐明了锂金属负极中集流体的要求，以明确集流体的设计目标。然后，重点介绍了集流体的改性策略，包括亲锂位点改性、三维结构构建、保护层改性和晶面工程及其相应原理。在此基础上，讨论了锂金属负极集流体开发的最新进展。最后，建议未来的方向集中在开发原位监测技术，以及在接近商业应用要求的实际条件下设计集流体和电池。这篇综述将激发对先进集流体更有见地的研究，并促进它们的商业化。
