About this Abstract |
Meeting |
MS&T24: Materials Science & Technology
|
Symposium
|
Energy Materials for Sustainable Development
|
Presentation Title |
A 2-D Carbonaceous Silicon Oxycarbide (SiOC) Composite Anode with High Electrochemical Performance for Li-Ion Batteries |
Author(s) |
Dillip Kumar Panda, Gangadhar Jella, Nawraj Sapkota, Apparao M. Rao, Ravindran Sujith, Rajendra K. Bordia |
On-Site Speaker (Planned) |
Dillip Kumar Panda |
Abstract Scope |
The outstanding theoretical capacity and structural stability of siliconoxycarbides (SiOCs) based anodes have garnered significant attention. The low electronic conductivity of these materials, however, hinders their practical application in Li-Ion batteries. A SiOC composite containing 2-D carbonaceous materials such as graphene nanoplatelets (GNP) and chemically modified reduced grapheneoxide (rGO) has been synthesized in the present study. Electrochemical performance of both composites improved significantly. As a result of their improved electronic conductivity, shorter ion diffusion length, and reduced charge-transfer resistance, SiOC composite electrodes have improved performance. In SiOC-rGO composite, a capacity of approximately 1000 mA h/g was obtained at a current density of 0.37 A/g, which was higher than its pristine counterpart. Furthermore, after 800 cycles, the composite anodes show a capacity of 700 mAh/g at 0.744 A/g. A high-rate and long-cycle life anode composite of SiOC/rGO and SiOC/GNP presents a promising option for lithium-ion battery commercialization. |