ELECTRODE AND ELECTROCHEMICAL DEVICE

1 . An electrode comprising a fluoropolyether group-containing compound, wherein the fluoropolyether group-containing compound is a fluoropolyether group-containing compound represented by the following formula (1) or (2):

R F1 α —X A R Si β   (1)

R Si γ —X A —R F2 —X A —R Si γ   (2)

wherein

R F1 at each occurrence is each independently Rf 1 —R F —O q —;

R F2 is —Rf 2 p —R F O q —;

Rf 1 at each occurrence is each independently a C 1-6 alkyl group optionally substituted with one or more fluorine atoms;

Rf 2 is a C 1-6 alkylene group optionally substituted with one or more fluorine atoms;

R F at each occurrence is each independently a divalent fluoropolyether group;

p is 0 or 1;

q at each occurrence is each independently 0 or 1;

R Si at each occurrence is each independently a group represented by

—SiR a1 k1 R b1 l1 R c1 m1   (S)

wherein:

R a1 at each occurrence is each independently —Z 1 —SiR 21 p1 R 22 q1 R 23 r1 ;

Z 1 at each occurrence is each independently an oxygen atom or a divalent organic group;

R 21 at each occurrence is each independently —Z 1′ —SiR 21′ p1′ R 22′ q1′ R 23′ r1′ ;

R 22 at each occurrence is each independently a hydroxy group or a hydrolyzable group;

R 23 at each occurrence is each independently a hydrogen atom or a monovalent organic group;

p1 at each occurrence is each independently an integer of 0 to 3;

q1 at each occurrence is each independently an integer of 0 to 3;

r1 at each occurrence is each independently an integer of 0 to 3;

Z 1′ at each occurrence is each independently an oxygen atom or a divalent organic group;

R 21′ at each occurrence is each independently —Z 1″ —SiR 22″ q1″R 23″ r1″ ;

R 22′ at each occurrence is each independently a hydroxy group or a hydrolyzable group;

R 23′ at each occurrence is each independently a hydrogen atom or a monovalent organic group;

p1′ at each occurrence is each independently an integer of 0 to 3;

q1′ at each occurrence is each independently an integer of 0 to 3;

r1′ at each occurrence is each independently an integer of 0 to 3;

Z″ at each occurrence is each independently an oxygen atom or a divalent organic group;

R 22″ at each occurrence is each independently a hydroxy group or a hydrolyzable group;

R 23″ at each occurrence is each independently a hydrogen atom or a monovalent organic group;

q1″ at each occurrence is each independently an integer of 0 to 3;

r1″ at each occurrence is each independently an integer of 0 to 3;

R b1 at each occurrence is each independently a hydroxy group or a hydrolyzable group;

R c1 at each occurrence is each independently a hydrogen atom or a monovalent organic group;

k1 at each occurrence is each independently an integer of 0 to 3;

l1 at each occurrence is each independently an integer of 0 to 3; and

m1 at each occurrence is each independently an integer of 0 to 3;

X A is each independently, single bond or a divalent to decavalent organic group;

α is an integer of 1 to 9;

β is an integer of 1 to 9; and

γ is each independently an integer of 1 to 9.

2 . The electrode according to claim 1 , wherein Rf 1 at each occurrence is each independently a C 1-16 perfluoroalkyl group, and

Rf 2 at each occurrence is each independently a C 1-6 perfluoroalkylene group.

3 . The electrode according to claim 1 , wherein R F at each occurrence is each independently a group represented by the formula:

—(OC 6 F 12 ) a —(OC 5 F 10 ) b —(OC 4 F 8 ) c —(OC 3 R Fa 6 ) d —(OC 2 F 4 ) e —(OCF 2 ) f —

wherein R Fa at each occurrence is each independently a hydrogen atom, a fluorine atom or a chlorine atom,

a, b, c, d, e, and f are each independently an integer of 0 to 200, the sum of a, b, c, d, e, and f is 1 or more, and the occurrence order of the respective repeating units in parentheses with a, b, c, d, e, or f is optional in the formula.

4 . The electrode according claim 3 , wherein R Fa is a fluorine atom.

5 . The electrode according to claim 1 , wherein R F at each occurrence is each independently a group represented by the following formula (f1), (f2), (f3), (f4), or (f5):

—(OC 3 F 6 ) d —  (f1)

wherein d is an integer of 1 to 200;

—(OC 4 F 8 ) c —(OC 3 F 6 ) d —(OC 2 F 4 ) e —(OCF 2 ) f —  (f2)

wherein c and d are each independently an integer of 0 to 30;

e and f are each independently an integer of 1 to 200;

the sum of c, d, e, and f is an integer of 10 to 200; and

the occurrence order of the respective repeating units in parentheses with the subscript c, d, e, or f is optional in the formula;

—(R 6 —R 7 ) g —  (f3)

wherein R 6 is OCF 2 or OC 2 F 4 ;

R 7 is a group selected from OC 2 F 4 , OC 3 F 6 , OC 4 F 8 , OC 5 F 10 , and OC 6 F 12 , or a combination of 2 or 3 groups selected from these groups; and

g is an integer of 2 to 100;

—(OC 6 F 12 ) a —(OC 5 F 10 ) b —(OC 4 F 8 ) c —(OC 3 F 6 ) d —(OC 2 F 4 ) e —(OCF 2 ) f —  (f4)

wherein e is an integer of 1 or more and 200 or less,

a, b, c, d, and f are each independently an integer of 0 or more and 200 or less, and

the occurrence order of the respective repeating units in parentheses with a, b, c, d, e, or f is optional in the formula;

—(OC 6 F 12 ) a —(OC 5 F 10 ) b —(OC 4 F 8 ) c —(OC 3 F 6 ) d —(OC 2 F 4 ) e —(OCF 2 ) f —  (f5)

wherein f is an integer of 1 or more and 200 or less a, b, c, d, and e are each independently an integer of 0 or more and 200 or less, and

the occurrence order of the respective repeating units in parentheses with a, b, c, d, e, or f is optional in the formula.

6 . The electrode according to claim 1 wherein R F is a group represented by the following formula (f1′):

—(OCF(CF 3 )CF 2 ) d —  (f1′)

wherein d is an integer of 1 to 200.

7 . The electrode according to claim 1 , wherein R F is a group represented by the following formula (f2′):

—(OCF 2 CF 2 CF 2 CF 2 ) c —(OCF 2 CF 2 CF 2 ) d —(OCF 2 CF 2 ) e —(OCF 2 ) f —  (f2′)

wherein c and d are each independently an integer of 0 to 30;

e and f are each independently an integer of 1 to 200;

the sum of c, d, e, and f is an integer of 10 to 200; and

the occurrence order of the respective repeating units in parentheses with the subscript c, d, e, or f is optional in the formula.

8 . The electrode according to claim 1 , wherein α, β, and γ each are 1.

9 . The electrode according to claim 1 , wherein k1 is 3, l1 and m1 each are 0,

p1 and r1 each are 0, and q1 is 3.

10 . The electrode according to claim 1 , wherein the fluoropolyether group-containing compound comprises two or more fluoropolyether group-containing compounds.

11 . The electrode according to claim 1 , wherein a surface of the electrode is coated with the fluoropolyether group-containing compound.

12 . The electrode according to claim 1 , comprising a fluorine-containing oil.

13 . An electrochemical device comprising the electrode according to claim 1 .

14 . The electrochemical device according to claim 13 , being a lithium ion secondary battery.

15 . A module comprising the electrochemical device according to claim 13 .

16 . A lithium ion secondary battery, comprising the electrode according to claim 1 .