Storage battery electrode, manufacturing method thereof, storage battery, electronic device, and graphene
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsTatsuya Ikenuma, Yumiko Yoneda
Life of this patent
Estimating the term…
Abstract
To provide graphene oxide that has high dispersibility and is easily reduced. To provide graphene with high electron conductivity. To provide a storage battery electrode including an active material layer with high electric conductivity and a manufacturing method thereof. To provide a storage battery with increased discharge capacity. A method for manufacturing a storage battery electrode that is to be provided includes a step of dispersing graphene oxide into a solution containing alcohol or acid, a step of heating the graphene oxide dispersed into the solution, and a step or reducing the graphene oxide.
Claims16
A method for manufacturing a storage battery electrode, comprising the steps of:
- dispersing graphene oxide into a solution, the solution containing acid;
- heating the graphene oxide in the solution so that an alkyl group is supported by an ether bond in the graphene oxide;
- vaporizing a solvent in the solution at a temperature higher than or equal to 60° C. and lower than or equal to 170° C. after heating the graphene oxide;
- and
- forming graphene by reducing the graphene oxide after vaporizing the solvent,
- wherein the reducing the graphene oxide is performed by heating the graphene oxide at a temperature higher than or equal to 60° C. and lower than or equal to 170° C.
A method for manufacturing a storage battery electrode, comprising the steps of:
- dispersing graphene oxide into a solution, the solution containing alcohol;
- heating the graphene oxide in the solution so that an alkyl group is supported by an ether bond in the graphene oxide;
- vaporizing a solvent in the solution at a temperature higher than or equal to 60° C. and lower than or equal to 170° C. after heating the graphene oxide;
- and
- forming graphene by reducing the graphene oxide after vaporizing the solvent,
- wherein the reducing the graphene oxide is performed by heating the graphene oxide at a temperature higher than or equal to 60° C. and lower than or equal to 170° C.
A method for manufacturing a storage battery electrode, comprising the steps of:
- dispersing graphene oxide into a solution, the solution containing acid;
- heating the graphene oxide in the solution so that an alkyl group is supported by an ester bond in the graphene oxide;
- vaporizing a solvent in the solution at a temperature higher than or equal to 60° C. and lower than or equal to 170° C. after heating the graphene oxide;
- and
- forming graphene by reducing the graphene oxide after vaporizing the solvent,
- wherein the reducing the graphene oxide is performed by heating the graphene oxide at a temperature higher than or equal to 60° C. and lower than or equal to 170° C.
A method for manufacturing a storage battery electrode, comprising the steps of:
- dispersing graphene oxide into a solution, the solution containing alcohol;
- heating the graphene oxide in the solution so that an alkyl group is supported by an ester bond in the graphene oxide;
- vaporizing a solvent in the solution at a temperature higher than or equal to 60° C. and lower than or equal to 170° C. after heating the graphene oxide;
- and
- forming graphene by reducing the graphene oxide after vaporizing the solvent,
- wherein the reducing the graphene oxide is performed by heating the graphene oxide at a temperature higher than or equal to 60° C. and lower than or equal to 170° C.
Dependencies are inferred from the claim text.