Anode electrode slurry suspending agent, anode electrode plate and energy storage device

1. An anode electrode slurry suspending agent, having a structural formula composed of a main chain containing carbon and a side chain, the side chain comprising a first side chain R 1 and a second side chain R 2 ;

the first side chain R 1 containing —R 11 —CONH 2 , R 11 being one selected from the group consisting of C1-C5 alkylene groups;

the second side chain R 2 containing —(C═O)OR 21 or —O(C═O)R 22 , R 21 and R 22 each being independently one selected from the group consisting of unsubstituted C4-C8 alkyl groups and substituted C4-C8 alkyl groups, where the substituted C4-C8 alkyl groups are substituted with at least one substituent group selected from the group consisting of halogen, unsubstituted C4-C8 alkenyl groups and substituted C4-C8 alkenyl groups, where the substituted C4-C8 alkenyl groups are substituted with at least one substituent group selected from the group consisting of halogen, unsubstituted C4-C8 alkynyl groups and substituted C4-C8 alkynyl groups, where the substituted C4-C8 alkynyl groups are substituted with at least one substituent group selected from the group consisting of halogen, and unsubstituted C4-C8 alkoxy groups and substituted C4-C8 alkoxy groups, where the substituted C4-C8 alkoxy groups are substituted with at least one substituent group selected from the group consisting of halogen;

wherein a number-average molecular weight of the anode electrode slurry suspending agent ranges from 300,000 to 400,000.

2. The anode electrode slurry suspending agent according to claim 1 , wherein the structural formula of the anode electrode slurry suspending agent is as follows:

in formula 1, a:b=(40˜50):(50˜60).

3. The anode electrode slurry suspending agent according to claim 1 , wherein the main chain containing carbon has carbon-carbon double bond; and/or

the side chain further comprises a third side chain R 3 , the third side chain R 3 contains polar functional group, the polar functional group is one or more selected from a group consisting of nitrile group, sulfonic group, carboxyl, phenolic hydroxyl group, alcoholic hydroxyl group, amino group, —(C═O)NH— and —(C═O)N—.

4. The anode electrode slurry suspending agent according to claim 2 , wherein the structural formula of the anode electrode slurry suspending agent is

where,

in formula 5, a:b=(40˜50):(50˜60).

5. An anode electrode plate, comprising:

an anode electrode current collector; and

an anode electrode film provided on the anode electrode current collector and comprising an anode electrode active material;

the anode electrode film further comprising a suspending agent, the suspending agent comprising an anode electrode slurry suspending agent, the anode electrode slurry suspending agent having a structural formula composed of a main chain containing carbon and a side chain, the side chain comprising a first side chain R 1 and a second side chain R 2 ;

the first side chain R 1 containing —R 11 —CONH 2 , R 11 being one selected from a group consisting of C1-C5 alkylene group;

the second side chain R 2 containing —(C═O)OR 21 or —O(C═O)R 22 , R 21 and R 22 each being independently one selected from the group consisting of unsubstituted C4-C8 alkyl groups and substituted C4-C8 alkyl groups, where the substituted C4-C8 alkyl groups are substituted with at least one substituent group selected from the group consisting of halogen, unsubstituted C4-C8 alkenyl groups and substituted C4-C8 alkenyl groups, where the substituted C4-C8 alkenyl groups are substituted with at least one substituent group selected from the group consisting of halogen, unsubstituted C4-C8 alkynyl groups and substituted C4-C8 alkynyl groups, where the substituted C4-C8 alkynyl groups are substituted with one or more at least one substituent group selected from the group consisting of halogen, and unsubstituted C4-C8 alkoxy groups and substituted C4-C8 alkoxy groups, where the substituted C4-C8 alkoxy groups are substituted with at least one substituent group selected from the group consisting of halogen;

wherein a number-average molecular weight of the anode electrode slurry suspending agent ranges from 300,000 to 400,000.

6. The anode electrode plate according to claim 5 , wherein the structural formula of the anode electrode slurry suspending agent is as follows:

in formula 1, a:b=(40˜50):(50˜60).

7. The anode electrode plate according to claim 5 , wherein the main chain containing carbon has carbon-carbon double bond; and/or

the side chain further comprises a third side chain R 3 , the third side chain R 3 contains polar functional group, the polar functional group is one or more selected from a group consisting of nitrile group, sulfonic group, carboxyl, phenolic hydroxyl group, alcoholic hydroxyl group, amino group, —(C═O)NH— and —(C═O)N—.

8. The anode electrode plate according to claim 6 , wherein the structural formula of the anode electrode slurry suspending agent is

where,

in formula 5, a:b=(40˜50):(50˜60).

9. An energy storage device, comprising an anode electrode plate,

the anode electrode plate comprising:

an anode electrode current collector; and

an anode electrode film provided on the anode electrode current collector and comprising an anode electrode active material;

the anode electrode film further comprising a suspending agent, the suspending agent comprising an anode electrode slurry suspending agent, the anode electrode slurry suspending agent having a structural formula composed of a main chain containing carbon and a side chain, the side chain comprising a first side chain R 1 and a second side chain R 2 ;

the first side chain R 1 containing —R 11 —CONH 2 , R 11 being one selected from a group consisting of C1-C5 alkylene group;

the second side chain R 2 containing —(C═O)OR 21 or —O(C═O)R 22 , R 21 and R 22 each being independently one selected from the group consisting of unsubstituted C4-C8 alkyl groups and substituted C4-C8 alkyl groups, where the substituted C4-C8 alkyl groups are substituted with at least one substituent group selected from the group consisting of halogen, unsubstituted C4-C8 alkenyl groups and substituted C4-C8 alkenyl groups, where the substituted C4-C8 alkenyl groups are substituted with at least one substituent group selected from the group consisting of halogen, unsubstituted C4-C8 alkynyl groups and substituted C4-C8 alkynyl groups, where the substituted C4-C8 alkynyl groups are substituted with at least one substituent group selected from the group consisting of halogen, and unsubstituted C4-C8 alkoxy groups and substituted C4-C8 alkoxy groups, where the substituted C4-C8 alkoxy groups are substituted with at least one substituent group selected from the group consisting of halogen;

wherein a number-average molecular weight of the anode electrode slurry suspending agent ranges from 300,000 to 400,000.

10. The energy storage device according to claim 9 , wherein the structural formula of the anode electrode slurry suspending agent is as follows:

in formula 1, a:b=(40˜50):(50˜60).

11. The energy storage device according to claim 9 ,

wherein the main chain containing carbon has carbon-carbon double bond; and/or

the side chain further comprises a third side chain R 3 , the third side chain R 3 contains polar functional group, the polar functional group is one or more selected from a group consisting of nitrile group, sulfonic group, carboxyl, phenolic hydroxyl group, alcoholic hydroxyl group, amino group, —(C═O)NH— and —(C═O)N—.