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US 12,525,609 B2Granted
Silicon-nanographite aerogel-based anodes for batteries
AssigneeGranode Materials AB
InventorsManisha Phadatare, Rohan Patil, Håkan Olin
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AssigneeGranode Materials AB
InventorsManisha Phadatare, Rohan Patil, Håkan Olin
Estimating the term…
The present invention relates to a silicon-nanographite aerogel for use as an anode in a battery, such as a lithium ion battery, comprising a matrix of nanographite flakes consisting of a mixture of graphene, multilayer graphene and graphite nanoplatelets, and silicon nanoparticles having a diameter between 1 nm and 100 nm, whereby the aerogel has a three-dimensional structure with pores between the flakes, whereby the specific surface area accommodates a volume expansion of the silicon nanoparticles of at least 400% during lithiation, and wherein the surfaces of the nanographite flakes are for 10 to 90% covered with nanoparticles of silicon or wherein the aerogel has a specific surface area between 10 and 500 m2/g as measured using a BET (Braunauer-Emmett-Teller). The invention also relates to a method of making the aerogel and an electrode comprising the aerogel.
A silicon-nanographite aerogel for use as an anode in a battery comprising a matrix of nanographite flakes consisting of a mixture of graphene, multilayer graphene and graphite nanoplatelets, and silicon nanoparticles having a diameter between 1 nm and 100 nm, whereby the silicon-nanographite aerogel has a three-dimensional structure with pores between the nanographite flakes, whereby the specific surface area accommodates a volume expansion of the silicon nanoparticles of at least 400% during lithiation, and wherein the surfaces of the nanographite flakes are 10 to 90% covered with nanoparticles of silicon.
A silicon-nanographite aerogel for use as an anode in a battery comprising a matrix of nanographite flakes consisting of a mixture of graphene, multilayer graphene and graphite nanoplatelets, and silicon nanoparticles having a diameter between 1 nm and 100 nm, whereby the silicon-nanographite aerogel has a three-dimensional structure with pores between the nanographite flakes, whereby the specific surface area accommodates a volume expansion of the silicon nanoparticles of at least 400% during lithiation, and wherein the silicon-nanographite aerogel has a specific surface area between 10 and 500 m2/g as measured using a BET (Braunauer-Emmett-Teller).
Dependencies are inferred from the claim text.