SiOC-Recycled Graphite Composites
Our SiOC Recycled Graphite Composite Anodes will help mitigate global supply risk by:
diversifying supply chains,developing material and technology substitutes, andpromoting recycling, reuse, and efficiency
Our process provides a 2nd life application for graphite from spent LiBs, creating a circular and sustainable, “grave-to-cradle” process.
We hope to partner with existing battery recycling companies or manufacturers to add recycled graphite as an additional value stream to their existing operations, making the entire recycling process more economical.
Creating a domestic source for anode materials that can support the ever-increasing demand, driven by the EV boom.
Performance Data
Half-Cell Performance
Table Summary of data for in-house half-2032 coin cell testing. Half cells are vs. Li metal in standard cell orientation. Formation at c/20, cycling C/10 between 0.005-3.0V. Separator: Whatman GF/D, Electrolyte 1M LiPF6 in 1:1 EC:DMC.
Pre-lithiation
To compensate for low First Cycle Efficiencies (FCE), anode composites were electrochemically prelithiated using sacrificial lithium plated Cu foil as the counter electrode in a tri-layer orientation. Coulombic efficiency after the 3rd cycle reached 97.8% with a specific capacity of 487 mAh/g.
Single Layer Pouch Cell Performance
SLP prelithiation and full cell assembly and testing of the SiOC-Recycled Graphite composite anodes followed the previously detailed parameters. These anode composites consist of 25wt% recycled graphite with an areal capacity of 1.62 mAh/cm2.
