	US 12,218,305 B2
	Graphene compound, method for forming graphene compound, and lithium-ion storage battery
Hiroshi Kadoma, Kanagawa (JP); Teppei Oguni, Kanagawa (JP); and Satoshi Seo, Kanagawa (JP)
Assigned to Semiconductor Energy Laboratory Co., Ltd., Kanagawa-ken (JP)
Filed by SEMICONDUCTOR ENERGY LABORATORY CO., LTD., Atsugi (JP)
Filed on May 28, 2021, as Appl. No. 17/334,514.
Application 17/334,514 is a continuation of application No. 16/544,958, filed on Aug. 20, 2019, granted, now 11,024,878, issued on Jun. 1, 2021.
Application 16/544,958 is a continuation of application No. 15/445,433, filed on Feb. 28, 2017, granted, now 10,396,397, issued on Aug. 27, 2019.
Claims priority of application No. 2016-040093 (JP), filed on Mar. 2, 2016.
Prior Publication US 2021/0296701 A1, Sep. 23, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 10/0565 (2010.01); C01B 32/194 (2017.01); C01B 32/198 (2017.01); C01B 32/23 (2017.01); H01M 10/0525 (2010.01); H01M 10/0585 (2010.01); H01M 50/119 (2021.01); H01M 50/121 (2021.01); H01M 50/129 (2021.01)

CPC H01M 10/0565 (2013.01) [C01B 32/194 (2017.08); C01B 32/198 (2017.08); C01B 32/23 (2017.08); H01M 10/0525 (2013.01); H01M 10/0585 (2013.01); H01M 50/119 (2021.01); H01M 50/121 (2021.01); H01M 50/129 (2021.01); C01B 2204/22 (2013.01); H01M 2300/0082 (2013.01); Y02E 60/10 (2013.01); Y02P 70/50 (2015.11); Y02T 10/70 (2013.01)]

6 Claims

1. A method for forming a graphene compound, comprising the steps of:

stirring graphene oxide and a base under a nitrogen stream to form a first mixture;

cooling the first mixture after the stirring step; and

adding a silylating agent to the first mixture after the cooling, to form a second mixture,

wherein the silylating agent further comprises a chain group comprising two or more ether bonds,

wherein the chain group has a structure terminated with an alkoxyalkyl group, and

wherein the base is any one of butylamine, pentylamine, hexylamine, diethylamine, dipropylamine, dibutylamine, triethylamine, tripropylamine and pyridine.