Energy Storage Science and Technology ›› 2022, Vol. 11 ›› Issue (7): 2103-2113.doi: 10.19799/j.cnki.2095-4239.2022.0120

• Energy Storage Materials and Devices • Previous Articles     Next Articles

Visualization analysis of composite electrolytes for lithium battery based on CiteSpace

Sida HUO(), Wendong XUE(), Xinli LI, Yong LI   

  1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
  • Received:2022-03-07 Revised:2022-03-22 Online:2022-07-05 Published:2022-06-29
  • Contact: Wendong XUE E-mail:g20208393@xs.ustb.edu.cn;xuewendong@ustb.edu.cn

Abstract:

A solid electrolyte is an ideal electrolyte material with high energy density, high capacity, and high safety. Inorganic solid electrolytes have high ionic conductivity and mechanical properties; however, they exhibit high impedance and poor with contact electrode. Polymer solid electrolytes have good flexibility and machinability; however, their ionic conductivity does not satisfy application requirements. Organic-inorganic composite electrolytes possess the advantages of inorganic and polymer solid electrolytes; thus, these materials are suitable for a wide range of applications. However, the ionic conductivity and electrochemical stability of these materials are not satisfactory. Thus, in this study, we reviewed the last 30 years of literature on organic-inorganic composite electrolytes from the Web of Science Core Collection database. Relevant data were then visualized using CiteSpace. In addition, important nodes in composite electrolyte development process and recent research hotspots were analyzed. The results demonstrate that research interest in composite electrolyte is increasing exponentially. The latest research focuses on the gel state, single-ion conductor structures, and polycarbonate-based materials. Interface is the key to the study of composite electrolytes and has been the most observable key word over the past five years. We found that future development of composite electrolytes should focus on (1) material selection and structure design of semisolid composite electrolyte, (2) interface structures and transport mechanisms between different phases in the electrolyte, and (3) a stable and elastic SEI/CEI film was constructed between an electrolyte and electrode.

Key words: lithium ion battery, composite electrolyte, visual analysis, CiteSpace

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