Graphene compound and manufacturing method thereof, electrolyte, and power storage device
To provide a graphene compound having an insulating property and an affinity for lithium ions. To increase the molecular weight of a substituent included in a graphene compound. To provide a graphene compound including a chain group containing an ether bond or an ester bond. To provide a graphene compound including a substituent containing one or more branches. To provide a graphene compound including a substituent including at least one of an ester bond and an amide bond.
1. A solid electrolyte comprising:
a graphene compound, and
a lithium salt,
wherein:
the graphene compound comprises a structure represented by a general formula (G1)
G layer represents a graphene layer,
α 1 represents an ether bond, an ester bond, or a bond represented by a general formula (α-1)
β 1 and γ 1 each independently represent a substituted or unsubstituted alkylene group having 1 to 10 carbon atoms,
B 1 represents an alkoxy group or an alkylamino group, and
R 3 represents hydrogen or a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms.
2. The solid electrolyte according to claim 1 ,
wherein:
B 1 is a group represented by a general formula (B-2)
β 2 and γ 2 each independently represent a substituted or unsubstituted alkylene group having 1 to 10 carbon atoms, and
B 2 represents an alkoxy group or an alkylamino group.
3. The solid electrolyte according to claim 2 ,
wherein:
B 2 is a group represented by a general formula (B-3)
β 3 and γ 3 each independently represent a substituted or unsubstituted alkylene group having 1 to 10 carbon atoms, and
B 3 represents an alkoxy group or an alkylamino group.
4. The solid electrolyte according to claim 3 ,
wherein:
B 3 is a group represented by a general formula (B-4)
β 4 and γ 4 each independently represent a substituted or unsubstituted alkylene group having 1 to 10 carbon atoms, and
B 4 represents an alkoxy group or an alkylamino group.
5. The solid electrolyte according to claim 4 ,
wherein:
B 4 is a group represented by a general formula (B-5)
β 5 and γ 5 each independently represent a substituted or unsubstituted alkylene group having 1 to 10 carbon atoms,
B 5 is represented by a general formula (B-1)
and
R 4 represents a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms.
6. A power storage device comprising:
the solid electrolyte according to claim 1 ;
an exterior body;
a positive electrode current collector; and
a negative electrode current collector.
7. A manufacturing method of the solid electrolyte according to claim 1 , comprising the steps of:
forming a mixture comprising graphene oxide and a compound represented by a general formula (E1)
and
filtering the mixture to collect a residue,
wherein:
the residue comprises the graphene compound, and
X represents halogen, a trialkoxysilyl group, or a trichlorosilyl group.
8. A manufacturing method of a graphene compound, comprising the steps of:
manufacturing a first graphene compound by the manufacturing method of a graphene compound according to claim 7 ;
forming a second mixture comprising the first graphene compound and a diamine; and filtering the second mixture to collect a second residue,
wherein the second residue comprises a second graphene compound.
9. A manufacturing method of a graphene compound, comprising the steps of:
manufacturing a third graphene compound by the manufacturing method of a graphene compound according to claim 7 ;
forming a third mixture comprising the third graphene compound and acrylic ester; and
filtering the third mixture to collect a third residue,
wherein the third residue comprises a fourth graphene compound.