Achieving High-Performance Silicon Anodes of Lithium-Ion Batteries via Atomic and Molecular Layer Deposited Surface Coatings: an Overview
Achieving High-Performance Silicon Anodes of Lithium-Ion Batteries via Atomic and Molecular Layer Deposited Surface Coatings: an Overview
复制标题
DOI：
10.1016/j.electacta.2017.09.036
复制
发表时间：
2017-10
影响因子：
6.6
通讯作者：
Chenyuan Zhu;Kai Han;D. Geng;Hong-qi Ye;Xiangbo Meng
中科院分区：
文献类型：
--
作者：
Chenyuan Zhu;Kai Han;D. Geng;Hong-qi Ye;Xiangbo Meng
可再充电二次电池（RSB）已经成功地实践了一百多年，并且现在锂离子电池（LIB）代表了最佳商业化的RSB。然而，最先进的LIB在许多方面仍然不足以为电动车辆提供动力。在这种情况下，研究工作正在集中投资于开发下一代LIB。在有前途的电池材料列表中，硅（Si）作为LIB的阳极材料特别有吸引力，这归因于其丰富的地球和极高的容量（室温下为3500 mAh g− 1）。随着Si作为阳极的成功利用，LIB将实现高得多的能量密度。然而，Si阳极在技术上存在一些问题，包括巨大的体积变化、Si与电解质之间的不稳定界面以及低电导率。为了应对这些挑战，已经研究了各种技术策略。最近，原子和分子层沉积（ALD和MLD）已成为LIB的两个新的研究方向，并已展示出解决Si阳极问题的巨大能力。在这项工作中，我们首次对通过ALD和MLD实现LIB中高性能Si阳极的各种无机和有机涂层进行了全面的综述。
Rechargeable secondary batteries (RSBs) have been practiced successfully for over one hundred years and now lithium-ion batteries (LIBs) represent the best-commercialized RSBs. However, the state-of-the-art LIBs are still not sufficient in many aspects to power electrical vehicles. In this context, research efforts are being intensively invested on developing next-generation LIBs. On the list of promising battery materials, silicon (Si) is particularly attractive as an anode material of LIBs, ascribed to its richness in the earth and extremely high capacity (∼3500 mAh g−1at room temperature). With the successful utilization of Si as anodes, LIBs would enable much higher energy density. However, Si anodes suffer from several issues technically, including huge volume changes, unstable interface between Si and electrolyte, and low conductivity. Aimed at addressing these challenges, various technical strategies have been investigated. Recently, atomic and molecular layer deposition (ALD & MLD) have emerged as two new research thrusts for LIBs and have demonstrated tremendous capabilities to resolve the issues of Si anodes. In this work, we for the first time made this comprehensive review on a variety of inorganic and organic coatings via ALD and MLD for achieving high-performance Si anodes in LIBs.