Stable metal anodes enabled by a labile organic molecule bonded to a reduced graphene oxide aerogel
Abstract
Rechargeable batteries based on metal anodes are highly desirable due to their high energy density. However, the electrochemical interface is generally not favorable for metal deposition, resulting in dendritic metal growth and an unstable solid–electrolyte interphase (SEI). We altered the interface using a labile organic molecule, benzenesulfonyl fluoride. This molecule was bonded to the surface of a reduced graphene oxide aerogel, which not only guides uniform metal deposition but also enables formation of a stable SEI layer. The lithium metal batteries showed stable cycling and excellent tolerance to low-temperature operation. Stable sodium and zinc anodes were also realized, demonstrating the versatility of this concept.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Nov 16, 2020
- Source ID
- 10.1073/pnas.2001837117
Entities
People
- Adri. C. T. Van Duin
- Atif AlZahrani
- Daiwei Wang
- Donghai Wang
- Ke Wang
- Md Jamil Hossain
- Shuling Shen
- Thomas E. Mallouk
- Yue Gao
- Yun Kyung Shin
- Zhifei Yan
- Zhuo Han
Organizations
- National Science Foundation
- Pennsylvania State University
- United States Army Research Laboratory
- United States Department of Energy
- University of Pennsylvania
- University of Shanghai for Science and Technology