Hard–Soft Composite Carbon as a Long‐Cycling and High‐Rate Anode for Potassium‐Ion Batteries
Oregon State University · Brookhaven National Laboratory
Abstract
There exist tremendous needs for sustainable storage solutions for intermittent renewable energy sources, such as solar and wind energy. Thus, systems based on Earth‐abundant elements deserve much attention. Potassium‐ion batteries represent a promising candidate because of the abundance of potassium resources. As for the choices of anodes, graphite exhibits encouraging potassium‐ion storage properties; however, it suffers limited rate capability and poor cycling stability. Here, nongraphitic carbons as K‐ion anodes with sodium carboxymethyl cellulose as the binder are systematically investigated. Compared to hard carbon and soft carbon, a hard–soft composite carbon with 20 wt% soft carbon distributed in the…
Citation impact
- FWCI
- 39.31
- Percentile
- 100%
- References
- 39
Authors
8Topics & keywords
- Materials science
- Anode
- Carbon fibers
- Composite number
- Energy storage
- Chemical engineering
- Potassium
- Graphite