Dry Pressed, High Areal Loading Electrode Architectures Enabled by Holey Graphene

Lin Yi; John W Connell

NASA NTRS · 20200003944

Dry Pressed, High Areal Loading Electrode Architectures Enabled by Holey Graphene

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Abstract

For future electric aviation, advanced battery cell chemistry beyond lithium ion batteries are required to meet mission requirements. High energy density battery concepts such as lithium-sulfur (Li-S) and lithiumoxygen (Li-O2) chemistries are being intensively investigated to realize their extraordinary theoretical promise in terms of energy density. Most fabrication methods of cathodes for these novel battery chemistries followed a conventional approach. In this approach, the active material is mixed with a polymer binder and a conductive carbon in a high-boiling organic solvent to form a slurry, followed by casting onto a current collector and solvent evaporation. The process is usually lengthy and poses environmental hazards due to the use of organic solvents.

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Lin Yi, John W Connell. Dry Pressed, High Areal Loading Electrode Architectures Enabled by Holey Graphene. https://ntrs.nasa.gov/citations/20200003944

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