Releasing Free Radicals in Precursor Triggers the Formation of Closed Pores in Hard Carbon for Sodium‐Ion Batteries
Chinese Academy of Sciences · Institute of Coal Chemistry · +2 more institutions
Abstract
Abstract Increasing closed pore volume in hard carbon is considered to be the most effective way to enhance the electrochemical performance in sodium‐ion batteries. However, there is a lack of systematic insights into the formation mechanisms of closed pores at molecular level. In this study, a regulation strategy of closed pores via adjustment of the content of free radicals is reported. Sufficient free radicals are exposed by part delignification of bamboo, which is related to the formation of well‐developed carbon layers and rich closed pores. In addition, excessive free radicals from nearly total delignification lead to more reactive sites during pyrolysis, which competes for limited precursor debris to…
Citation impact
- FWCI
- 49.72
- Percentile
- 100%
- References
- 57
Authors
9- YWYilin Wang
Chinese Academy of Sciences, Institute of Coal Chemistry, University of Chinese Academy of Sciences
- ZYZonglin Yi
Chinese Academy of Sciences, Institute of Coal Chemistry
- LXLijing Xie
Chinese Academy of Sciences, Institute of Coal Chemistry
- YMYixuan Mao
Chinese Academy of Sciences, Institute of Coal Chemistry, University of Chinese Academy of Sciences
- WJWenjun Ji
Chinese Academy of Sciences, Institute of Coal Chemistry, University of Chinese Academy of Sciences
Topics & keywords
- Materials science
- Radical
- Ion
- Sodium
- Carbon fibers
- Chemical engineering
- Inorganic chemistry
- Photochemistry