Porous graphene network electrodes and an all-carbon lithium ion battery containing the same
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United States of America Patent
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Dec 29, 2020
Grant Date -
Feb 16, 2017
app pub date -
Dec 11, 2014
filing date -
Dec 12, 2013
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Abstract
Systems for the production of graphene oxide sheets are provided. The systems include electro-deposition and spray deposition techniques. The graphene oxide sheets may be used as pre-cursors for the formation of porous graphene network (PGN) anodes and lithiated porous graphene (Li-PGN) cathodes. The method of making PGN electrodes includes thermally reducing a pre-cursor sheet of graphene oxide to provide a PGN anode and exposing the sheet to lithium or a lithium-containing compound to produce a Li-PGN cathode. The Li-PGN cathode and PGN anode may be combined with an electrolyte to provide an “all-carbon” battery that is useful in various applications, such as automotive applications.
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