Energy Storage Science and Technology ›› 2022, Vol. 11 ›› Issue (1): 379-396.doi: 10.19799/j.cnki.2095-4239.2021.0295

• Technical Economic Analysis of Energy Storage • Previous Articles     Next Articles

Knowledge map analysis of a low-temperature electrolyte for lithium-ion battery based on CiteSpace

Huakun HU(), Xinli LI, Wendong XUE(), Peng JIANG, Yong LI   

  1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
  • Received:2021-06-29 Revised:2021-07-30 Online:2022-01-05 Published:2022-01-10
  • Contact: Wendong XUE E-mail:S20200312@xs.ustb.edu.cn;xuewendong@ustb.edu.cn

Abstract:

At low temperature, lithium-ion batteries (LIBs) will show impedance increases, intercalated/deintercalated lithium imbalance, low cycle efficiency, capacity fading, and other phenomena, which would result in the charge becoming more difficult than the discharge. Consequently, this seriously affects the low-temperature performance of LIBs. The electrolyte has the greatest impact on the low-temperature performance of LIBs. The electrolyte viscosity increases at low temperature and at poor compatibility with the electrode materials and separators. This results in the decrease of the ionic conductivity and the increase of the charge transfer resistance, which will eventually lead to battery performance degradation. The present study analyzes the visualization map of the low-temperature electrolyte literature for LIBs based on the Web of Science Core Collection database. The CiteSpace analysis shows that research on low-temperature electrolytes can be divided into three stages: initial, stable, and rapid development stages. Research forces are mainly concentrated in China, the United States, Japan, and Germany, among other countries. Accordingly, China is gradually becoming the core force of scientific research. Moreover, countries and research institutions are closely cooperating with each other, and an increasing number of researchers are participating in studies. Two main routes are used to develop a new low-temperature electrolyte: ① a multi-component electrolyte with low viscosity and high ionic conductivity is designed and supplemented by functional additives to improve the low-temperature performance; and ② by studying the interface structure and properties of the SEI film, the electrode material with a high diffusion coefficient is designed to increase the Li+ mobility at low temperature and improve the low-temperature performance. In the future, the solid electrolyte breakthrough may completely solve the problem of the poor low-temperature performance of LIBs. At the same time, the combination of computational materials science can accelerate the research and development process and contribute to the deep integration of the industry, university, and research.

Key words: lithium-ion battery, low-temperature electrolyte, CiteSpace, visual analysis

CLC Number: