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AssigneeAspen Aerogels, Inc.
InventorsRedouane Begag, Roxana Trifu, Nicholas A. Zafiropoulos, Harris R. Miller, George L. Gould, Nicholas Leventis
Estimating the term…
The present disclosure is directed to methods of forming polyimide gels. The methods generally include forming a polyamic acid and dehydrating the polyamic acid with a dehydrating agent in the presence of water. The resulting polyimide gels may be converted to polyimide or carbon xerogels or aerogels. The methods are advantageous in providing rapid or even instantaneous gelation, which may be particularly useful in formation of beads comprising the polyimide gels. Polyimide or carbon gel materials prepared according to the disclosed method are suitable for use in environments containing electrochemical reactions, for example as an electrode material within a lithium-ion battery.
1-41. (canceled)
A polyimide wet-gel comprising residual water.
A nanoporous gel material comprising a pore structure, the pore structure comprising a fibrillar morphology and an array of pores, wherein the nanoporous gel material is a polyimide aerogel or is a carbon aerogel derived from a polyimide aerogel by carbonization, and wherein a corresponding polyimide wet-gel, prior to any drying, comprises water in a molar ratio of the water to the polyimide of about 5 or greater.
Dependencies are inferred from the claim text.