IONIC COMPOUND, ELECTROLYTE SOLUTION, SECONDARY BATTERY AND ELECTRICAL APPARATUS

1 . An ionic compound represented by formula (1):

wherein each R 1 is independently selected from alkyl having 1-10 carbon atoms substituted with fluorine or aryl having 6-30 carbon atoms substituted with fluorine, respectively;

wherein any two adjacent —OR 1 groups and A − are capable of forming a ring, with a carbon atom in R 1 being a site of attachment;

A − represents B − or Si − , and Y + represents a sodium ion or a potassium ion.

2 . The ionic compound of claim 1 , wherein the ionic compound is represented by formula (1-1) or formula (1-2):

wherein each R 11 is independently selected from alkanyl having 1-5 carbon atoms substituted with fluorine, cycloalkyl having 3-10 carbon atoms substituted with fluorine or aryl having 6-30 carbon atoms substituted with fluorine, respectively;

each X 1 is independently selected from CR 12 R 12 , respectively, and each R 12 is independently selected from F, or alkanyl having 1-5 carbon atoms, or cycloalkyl having 3-10 carbon atoms, or aryl having 6-30 carbon atoms, or alkanyl having 1-5 carbon atoms substituted with fluorine, or cycloalkyl having 3-10 carbon atoms substituted with fluorine, or aryl having 6-30 carbon atoms substituted with fluorine, respectively, and at least one X 1 contains a fluorine atom.

3 . The ionic compound of claim 2 , wherein each Ru is independently selected from alkanyl having 1-4 carbon atoms substituted with fluorine, cycloalkyl having 3-6 carbon atoms substituted with fluorine or aryl having 6-15 carbon atoms substituted with fluorine, respectively;

each R 12 is independently selected from alkanyl having 1-4 carbon atoms substituted with fluorine, or cycloalkyl having 3-6 carbon atoms substituted with fluorine or aryl having 6-30 carbon atoms substituted with fluorine, respectively.

4 . The ionic compound of claim 2 , wherein in formula (1-1), at least one Rn is selected from cycloalkyl having 3-6 carbon atoms substituted with fluorine or aryl having 6-15 carbon atoms substituted with fluorine;

in formula (1-2), at least one R 12 is selected from cycloalkyl having 3-6 carbon atoms substituted with fluorine or aryl having 6-15 carbon atoms substituted with fluorine.

5 . The ionic compound of claim 4 , wherein the cycloalkyl having 3-6 carbon atoms substituted with fluorine satisfies at least one of the conditions (a)-(b):

(a) the cycloalkyl having 3-6 carbon atoms substituted with fluorine has a molecular weight of not more than 200 g/mol;

(b) the cycloalkyl having 3-6 carbon atoms substituted with fluorine is selected from any one of cyclopropanyl substituted with fluorine, cyclobutanyl substituted with fluorine, cyclopentanyl substituted with fluorine, and cyclohexanyl substituted with fluorine.

6 . The ionic compound of claim 4 , wherein the aryl having 6-15 carbon atoms substituted with fluorine is selected from any one of phenyl substituted with fluorine and naphthyl substituted with fluorine.

7 . The ionic compound of claim 2 , wherein each R 11 at least contains one fluorine atoms.

8 . The ionic compound of claim 2 , wherein each R 12 at least contains one fluorine atom.

9 . The ionic compound of claim 1 , wherein Y + is a sodium ion.

10 . Use of the ionic compound of claim 1 as an electrolyte salt.

11 . The use of claim 10 , wherein the use is the use of the ionic compound as an electrolyte salt in the preparation of a secondary battery.

12 . An electrolyte solution, having a component comprising the ionic compound of claim 1 .

13 . The electrolyte solution of claim 12 , wherein the concentration of the ionic compound in the electrolyte solution is 0.3 mol/L-1.4 mol/L.

14 . The electrolyte solution of claim 12 , wherein the conductivity of the electrolyte solution at 25° C. is 6 mS/cm-14 mS/cm.

15 . A secondary battery, comprising the electrolyte solution of claim 12 .

16 . An electrical apparatus, comprising the secondary battery of claim 15 .