Abstract
The high-energy-density and low-cost features endow lithium-sulfur batteries with broad application pro-spects.However,many drawbacks,especially the detri-mental shuttle effect,have hindered the further development of LSBs.In response,a lot of new structures have been applied to suppress the shuttle effect and pro-mote the development of LSBs.Recently,vacancy engi-neering has gained the attention of researchers due to its unique electronic structure.This review aims to analyze the application of vacancy engineering in LSBs.Firstly,the electrochemistry of LSBs has been systematically dis-cussed and the existing challenges as well as improvement tactics of LSBs have also been presented.Subsequently,the preparation methods and characterization technologies of various vacancies are summarized,including oxygen vacancies,sulfur vacancies,selenium vacancies,other anion vacancies,cation vacancies,etc.The latest applications of vacancy engineering in LSBs are also summarized in this review.Finally,some prospects and insights for further investigation and practical application of vacancy engineering in LSBs are put forward.
基金项目
Qingdao Postdoctoral Applied Research Project(QDBSH20220202040)
山东省自然科学基金(ZR2021QE192)
中国博士后科学基金(2018M63074)
NETL
NSTL
万方数据