储能科学与技术2024，Vol.13Issue(5)：1620-1634,15.DOI:10.19799/j.cnki.2095-4239.2023.0892
抑制锂金属负极枝晶的电解液调控策略
Advancements in electrolyte optimization strategies for inhibiting lithium dendrite growth
摘要
Abstract
Lithium metal anodes have attracted extensive research attention because of their high theoretical capacity(3860 mAh/g)and low redox potential(-3.04 V vs.SHE).However,the current practical application of lithium metal anodes still faces various challenges,among which the problem of lithium dendrite growth is notable.Among several solution strategies,electrolyte optimization is a promising strategy for inhibiting lithium dendrite growth because of its simple preparation process,strong system compatibility,low cost,and remarkable effect.In this study,we summarize several lithium dendrite growth models,including the solid electrolyte interface diffusion model,surface nucleation growth diffusion model,charge induction model,and space charge model,focusing on the model basis for electrolyte regulation strategies to inhibit dendrite growth.As a result,the physical and chemical properties of the electrode interface layer(SEI)determine the deposition behavior of metallic lithium,and the SEI composition,mechanical properties,and desolvation process are affected by the electrolyte components.Next,the research progress on electrolyte optimization strategies is systematically reviewed,mainly considering film-forming additives,solvent-regulated SEI additives,charge-induced additives,alloy additives,high-concentration salt electrolytes,and local high-concentration salt electrolytes.The advantages and disadvantages of various optimization strategies are summarized.Finally,future research directions for electrolyte optimization strategies are suggested.关键词
锂金属负极/枝晶/电解液优化/生长模型/添加剂Key words
lithium metal anode/dendrite/electrolyte optimization/growth model/additive分类
化学化工引用本文复制引用
石敏,蒋鹏杰,徐琛,贺鑫,梁宵..抑制锂金属负极枝晶的电解液调控策略[J].储能科学与技术,2024,13(5):1620-1634,15.基金项目
国家重点研发计划(2022YFB3807700,2021YFE0109700),国家自然科学基金项目(51972107,22309048). （2022YFB3807700,2021YFE0109700）
