Abstract
An epoxy group was successfully attached to the surface of silicon nanoparticle (SiNPs) via a silanization reaction between silanol-enriched SiNPs and functional silanes. The epoxy-functionalized SiNPs showed a much improved cell performance compared with the pristine SiNPs because of the increased stability with electrolyte and the formation of a covalent bond between the epoxy group and the polyacrylic acid binder. Furthermore, the anode laminate made from epoxy-SiNPs showed much enhanced adhesion strength. Post-test analysis shed light on how the epoxy-functional group affects the physical and electrochemical properties of the SiNP anode.
| Original language | English |
|---|---|
| Pages (from-to) | 44924-44931 |
| Number of pages | 8 |
| Journal | ACS Applied Materials and Interfaces |
| Volume | 10 |
| Issue number | 51 |
| DOIs | |
| State | Published - Dec 26 2018 |
| Externally published | Yes |
Funding
This research is supported by the U. S. Department of Energy (DOE), Vehicle Technologies Office. Argonne National Laboratory is operated for DOE Office of Science by UChicago Argonne, LLC under contract number DE-AC02-06CH11357. The use of the Center for Nanoscale Materials, an Office of Science user facility, was supported by DOE Office of Basic Energy Sciences under contract no. DE-AC02-06CH11357. We would like to thank the Cell Analysis, Modeling, and Prototyping (CAMP) facility for providing the electrode materials.
| Funders | Funder number |
|---|---|
| DOE Office of Basic Energy Sciences | |
| U. S. Department of Energy | |
| U.S. Department of Energy | DE-AC02-06CH11357 |
| Office of Science |
Keywords
- epoxy-functionalized surface
- lithium-ion battery
- nanosilicon particles
- silanization reaction
- silicon anode
- surface modification
