Invention Grant
- Patent Title: Thermoplastic carbon composite electrodes
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Application No.: US16533259Application Date: 2019-08-06
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Publication No.: US10679765B2Publication Date: 2020-06-09
- Inventor: Charles S. Henry , Kevin Klunder
- Applicant: Colorado State University Research Foundation
- Applicant Address: US CO Fort Collins
- Assignee: Colorado State University Research Foundation
- Current Assignee: Colorado State University Research Foundation
- Current Assignee Address: US CO Fort Collins
- Agency: Haukaas Fortius PLLC
- Agent Michael H. Haukaas
- Main IPC: B32B7/02
- IPC: B32B7/02 ; H01B1/24 ; H01B13/00

Abstract:
A new solvent-based method is presented for making low-cost composite graphite electrodes containing a thermoplastic binder. The electrodes, termed thermoplastic electrodes (TPEs), are easy to fabricate and pattern, give excellent electrochemical performance, and have high conductivity (1500 S m−1). The thermoplastic binder enables the electrodes to be hot embossed, molded, templated, and/or cut with a CO2 laser into a variety of intricate patterns. These electrodes show a marked improvement in peak current, peak separation, and resistance to charge transfer over traditional carbon electrodes. The impact of electrode composition, surface treatment (sanding, polishing, plasma treatment), and graphite source were found to impact fabrication, patterning, conductivity, and electrochemical performance. Under optimized conditions, electrodes generated responses similar to more expensive and difficult to fabricate graphene and highly oriented pyrolytic graphite electrodes. These TPE electrodes provide an approach for fabricating high-performance carbon electrodes with applications ranging from sensing to batteries.
Public/Granted literature
- US20190362867A1 THERMOPLASTIC CARBON COMPOSITE ELECTRODES Public/Granted day:2019-11-28
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