ELECTRODE BODY, METHOD FOR MANUFACTURING ELECTRODE BODY, AND ELECTROCHEMICAL ELEMENT

1 . An electrode body having an electrode, and a primer layer or a plurality of primer layers laminated on the electrode,

wherein the at least one primer layer is an in-situ polymerizable composition layer formed from a polymerization product of an in-situ polymerizable composition.

2 . The electrode body according to claim 1 , wherein the in-situ polymerizable composition contains at least one member of the following (1) to (7):

(1) a combination of a difunctional isocyanate compound and a diol,

(2) a combination of a difunctional isocyanate compound and a difunctional amino compound,

(3) a combination of a difunctional isocyanate compound and a difunctional thiol compound,

(4) a combination of a difunctional epoxy compound and a diol,

(5) a combination of a difunctional epoxy compound and a difunctional carboxy compound,

(6) a combination of a difunctional epoxy compound and a difunctional thiol compound, and

(7) a monofunctional radical-polymerizable monomer.

3 . The electrode body according to claim 1 , which has a functional group-containing layer between the electrode and the primer layer,

wherein the functional group-containing layer contains at least one functional group selected from the group consisting of the following (a) to (g):

(a) at least one functional group which is derived from a silane coupling agent, and which is selected from the group consisting of an epoxy group, an amino group, a (meth)acryloyl group, and a mercapto group,

(b) a functional group obtained by reacting at least one member selected from an epoxy compound and a thiol compound with an amino group derived from a silane coupling agent,

(c) a functional group obtained by reacting at least one member selected from the group consisting of an epoxy compound, an amino compound, an isocyanate compound, a compound having a (meth)acryloyl group and an epoxy group, and a compound having a (meth)acryloyl group and an amino group with a mercapto group derived from a silane coupling agent,

(d) a functional group obtained by reacting a thiol compound with a (meth)acryloyl group derived from a silane coupling agent,

(e) a functional group obtained by reacting at least one member selected from the group consisting of a compound having an amino group and a (meth)acryloyl group, an amino compound, and a thiol compound with an epoxy group derived from a silane coupling agent,

(f) an isocyanato group derived from an isocyanate compound, and

(g) a mercapto group derived from a thiol compound.

4 . The electrode body according to claim 1 , wherein the primer layer or layers have a total thickness of 1 to 500 μm.

5 . The electrode body according to claim 1 , wherein the electrode is a metal electrode.

6 . A method for producing an electrode body having an electrode and a primer layer or a plurality of primer layers laminated on the electrode,

the method comprising the step of applying an in-situ polymerizable composition onto the electrode and subjecting the in-situ polymerizable composition to polymerization to form the primer layer or layers.

7 . A method for producing an electrode body, the method comprising the step of forming a functional group-containing layer on an electrode, and the step of applying an in-situ polymerizable composition onto the functional group-containing layer and subjecting the in-situ polymerizable composition to polymerization to form a primer layer or a plurality of primer layers,

wherein the functional group-containing layer contains at least one functional group selected from the group consisting of the following (a) to (g):

(a) at least one functional group which is derived from a silane coupling agent, and which is selected from the group consisting of an epoxy group, an amino group, a (meth)acryloyl group, and a mercapto group,

(b) a functional group obtained by reacting at least one member selected from an epoxy compound and a thiol compound with an amino group derived from a silane coupling agent,

(c) a functional group obtained by reacting at least one member selected from the group consisting of an epoxy compound, an amino compound, an isocyanate compound, a compound having a (meth)acryloyl group and an epoxy group, and a compound having a (meth)acryloyl group and an amino group with a mercapto group derived from a silane coupling agent,

(d) a functional group obtained by reacting a thiol compound with a (meth)acryloyl group derived from a silane coupling agent,

(e) a functional group obtained by reacting at least one member selected from the group consisting of a compound having an amino group and a (meth)acryloyl group, an amino compound, and a thiol compound with an epoxy group derived from a silane coupling agent,

(f) an isocyanato group derived from an isocyanate compound, and

(g) a mercapto group derived from a thiol compound.

8 . The method for producing an electrode body according to claim 6 , wherein the in-situ polymerizable composition contains at least one member of the following (1) to (7):

(1) a combination of a difunctional isocyanate compound and a diol,

(2) a combination of a difunctional isocyanate compound and a difunctional amino compound,

(3) a combination of a difunctional isocyanate compound and a difunctional thiol compound,

(4) a combination of a difunctional epoxy compound and a diol,

(5) a combination of a difunctional epoxy compound and a difunctional carboxy compound,

(6) a combination of a difunctional epoxy compound and a difunctional thiol compound, and

(7) a monofunctional radical-polymerizable monomer.

9 . The method for producing an electrode body according to claim 6 , wherein the primer layer or layers have a total thickness of 1 to 500 μm.

10 . The method for producing an electrode body according to claim 6 , wherein the electrode is a metal electrode.

11 . An electrochemical element having the electrode body according to claim 1 .

12 . The electrochemical element according to claim 11 , which has contained in a container one of an electrolyte and an insulator, and the electrode body,

wherein the container has a through-hole through which the electrode body passes,

wherein part of the electrode body extends through the through-hole to the outside of the container,

the container having a sealing material along an edge of the through-hole,

wherein a sealing portion at which the sealing material and the primer layer of the electrode body are joined seals a gap between the through-hole and the electrode body.

13 . The electrochemical element according to claim 12 , wherein the sealing material has undergone a heating melt process to be joined to at least part of the primer layer of the electrode body.

14 . The electrochemical element according to claim 12 , wherein the sealing material is a thermoplastic resin.

15 . The electrochemical element according to claim 11 , which is a wet secondary battery, a solid battery, or a capacitor.

16 . The method for producing an electrode body according to claim 7 , wherein the in-situ polymerizable composition contains at least one member of the following (1) to (7):

(1) a combination of a difunctional isocyanate compound and a diol,

(2) a combination of a difunctional isocyanate compound and a difunctional amino compound,

(3) a combination of a difunctional isocyanate compound and a difunctional thiol compound,

(4) a combination of a difunctional epoxy compound and a diol,

(5) a combination of a difunctional epoxy compound and a difunctional carboxy compound,

(6) a combination of a difunctional epoxy compound and a difunctional thiol compound, and

(7) a monofunctional radical-polymerizable monomer.

17 . The method for producing an electrode body according to claim 7 , wherein the primer layer or layers have a total thickness of 1 to 500 μm.

18 . The method for producing an electrode body according to claim 7 , wherein the electrode is a metal electrode.