电化学
多硫化物
催化作用
材料科学
成核
串联
离解(化学)
锂硫电池
电极
化学工程
扩散
纳米技术
锂(药物)
硫黄
金属
物理化学
化学
热力学
有机化学
医学
复合材料
冶金
内分泌学
物理
工程类
电解质
作者
Jian Wang,Jing Zhang,Yongzheng Zhang,Huihua Li,Peng Chen,You Chen,Meinan Liu,Hongzhen Lin,Stefano Passerini
标识
DOI:10.1002/adma.202402792
摘要
Abstract High‐energy‐density lithium metal batteries (LMBs) are limited by reaction or diffusion barriers with dissatisfactory electrochemical kinetics. Typical conversion‐type lithium sulfur battery systems exemplify the kinetic challenges. Namely, before diffusing or reacting in the electrode surface/interior, the Li(solvent) x + dissociation at the interface to produce isolated Li + , is usually a prerequisite fundamental step either for successive Li + “reduction” or for Li + to participate in the sulfur conversions, contributing to the related electrochemical barriers. Thanks to the ideal atomic efficiency (100 at%), single atom catalysts (SACs) have gained attention for use in LMBs toward resolving the issues caused by the five types of barrier‐restricted processes, including polysulfide/Li 2 S conversions, Li(solvent) x + desolvation, and Li 0 nucleation/diffusion. In this perspective, the tandem reactions including desolvation and reaction or plating and corresponding catalysis behaviors are introduced and analyzed from interface to electrode interior. Meanwhile, the principal mechanisms of highly efficient SACs in overcoming specific energy barriers to reinforce the catalytic electrochemistry are discussed. Lastly, the future development of high‐efficiency atomic‐level catalysts in batteries is presented.
科研通智能强力驱动
Strongly Powered by AbleSci AI