薛州晴, 王子游, 张俊东, 卢洋, 黄文泽, 陈爱兵, 赵辰孜, KuzminaElena, KarasevaElena, KolosnitsynVladimir, 范丽珍, 张强. LiC6在复合锂负极中的作用、形成和表征[J]. 新型炭材料, 2023, 38(4): 641-658. DOI: 10.1016/S1872-5805(23)60773-5
引用本文: 薛州晴, 王子游, 张俊东, 卢洋, 黄文泽, 陈爱兵, 赵辰孜, KuzminaElena, KarasevaElena, KolosnitsynVladimir, 范丽珍, 张强. LiC6在复合锂负极中的作用、形成和表征[J]. 新型炭材料, 2023, 38(4): 641-658. DOI: 10.1016/S1872-5805(23)60773-5
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XUE Zhou-qing, WANG Zi-you, ZHANG Jun-dong, LU Yang, HUANG Wen-ze, CHEN Ai-bing, ZHAO Chen-zi, Kuzmina Elena, Karaseva Elena, Kolosnitsyn Vladimir, FAN Li-zhen, ZHANG Qiang. The role, formation and characterization of LiC6 in composite lithium anodes[J]. New Carbon Mater., 2023, 38(4): 641-658. DOI: 10.1016/S1872-5805(23)60773-5
Citation: XUE Zhou-qing, WANG Zi-you, ZHANG Jun-dong, LU Yang, HUANG Wen-ze, CHEN Ai-bing, ZHAO Chen-zi, Kuzmina Elena, Karaseva Elena, Kolosnitsyn Vladimir, FAN Li-zhen, ZHANG Qiang. The role, formation and characterization of LiC6 in composite lithium anodes[J]. New Carbon Mater., 2023, 38(4): 641-658. DOI: 10.1016/S1872-5805(23)60773-5
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LiC6在复合锂负极中的作用、形成和表征

The role, formation and characterization of LiC6 in composite lithium anodes

    摘要
  • 摘要: 锂金属电池（LMB）被认为是最有前景的下一代储能系统之一。然而，其实际应用存在极大的体积变化和锂枝晶的形成等重大挑战。为了应对这些挑战，引入炭材料的复合锂负极因其优异的化学和电化学稳定性以及在重复循环过程中的优异机械强度引起了极大关注。本文旨在全面概述锂化石墨（LiC6）的形成及其在锂沉积和剥离过程中在体相和界面区域的作用。在体相中，LiC6表现出优异的亲锂性能，降低了锂成核的过电位并促进锂的均匀沉积。当在电极-电解质界面引入LiC6时，它通过充当缓冲层来增强电极和电解质之间的接触，从而降低界面阻抗。最后，本文评述了锂碳复合负极发展的前景和挑战。

     

    Abstract: To solve the problems of large volume changes and the formation of lithium dendrites in lithium metal batteries, the incorporation of carbon into the lithium metal anodes has gained considerable attention due to its excellent chemical and electrochemical stability, as well as its exceptional mechanical strength that allows repeated cycling. This review provides a comprehensive overview of the formation of lithiated graphite (LiC6) and its role in both bulk and electrode-electrolyte interface regions during lithium plating and stripping. In bulk form, LiC6 has excellent lithiophilic properties, reducing the overpotential for lithium nucleation and promoting uniform lithium deposition. Additionally, when LiC6 is introduced at the electrode-electrolyte interfaces, it improves contact between the electrode and electrolyte by acting as a buffering layer, thereby reducing interfacial impedance. Finally, prospects and challenges for the development of Li/C composite anodes are discussed.

     

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