NON-AQUEOUS LIQUID ELECTROLYTE FOR SECONDARY BATTERY AND SECONDARY BATTERY

• US 20150188193A1
• Filed: 03/17/2015
• Published: 07/02/2015
• Est. Priority Date: 09/20/2012
• Status: Abandoned Application

• Current Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Original Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Inventors: KODAMA, Kunihiko, KANAZAWA, Yoshinori
• Application Number:
  US14/659,697
• Publication Number:
  US 20150188193A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H01M 10/052 Li-accumulators
• CPC Class Codes: H01M 10/0525 Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• CPC Class Codes: H01M 10/0567 characterised by the additives
• CPC Class Codes: H01M 2300/0025 Organic electrolyte
• CPC Class Codes: H01M 4/485 of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy H01M4/505, H01M4/525 take precedence
• CPC Class Codes: H01M 4/505 of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• CPC Class Codes: H01M 4/525 of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• CPC Class Codes: H01M 4/587 for inserting or intercalating light metals
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A non-aqueous liquid electrolyte for a secondary battery, containing: a compound (A) having a cyclopropane structure; an electrolyte; and an organic solvent, in which the compound (A) satisfies at least one selected from (Aa) to (Ac):

• (Aa) a compound having two or more cyclopropane structures in the molecule thereof
• (Ab) a compound having a cyclopropane structure and a group selected from an acryloyl group and a vinylphenyl group
• (Ac) a compound having a cyclopropane structure and a particular group

Claims

1. A non-aqueous liquid electrolyte for a secondary battery, containing:

a compound (A) having a cyclopropane structure;

an electrolyte; and

an organic solvent,

wherein the compound (A) satisfies at least one selected from (Aa) to (Ac);

(Aa) a compound having two or more cyclopropane structures in the molecule thereof

(Ab) a compound having a cyclopropane structure and a group selected from an acryloyl group and a vinylphenyl group

(Ac) a compound having a cyclopropane structure and a group selected from among formulas (Ac-a) to (Ac-c)

2. The non-aqueous liquid electrolyte for a secondary battery according to claim 1, wherein the compound (A) further contains at least one selected from the group consisting of a cyano group and an ester group.

3. The non-aqueous liquid electrolyte for a secondary battery according to claim 1, wherein the cyclopropane structure contained in the compound (A) has a partial structure represented by formula (Aa1):

4. The non-aqueous liquid electrolyte for a secondary battery according to claim 1, wherein the compound of (Aa) is a compound represented by formula (Aa3):

5. The non-aqueous liquid electrolyte for a secondary battery according to claim 1, wherein the compound of (Ab) is a compound represented by formula (Ab2):

6. The non-aqueous liquid electrolyte for a secondary battery according to claim 1, wherein the compound of (Ac) is a compound having a partial structure represented by formula (Ac1):

7. The non-aqueous liquid electrolyte for a secondary battery as according to claim 1, further containing a compound releasing, upon oxidation or reduction, an active species that reacts with the compound (A).

8. A non-aqueous liquid electrolyte secondary battery, containing:

a positive electrode;

a negative electrode; and

the non-aqueous liquid electrolyte according to claim 1.

9. The non-aqueous liquid electrolyte secondary battery according to claim 8, wherein a compound having at least one of nickel, cobalt, or manganese is contained as an active material of the positive electrode.

10. The non-aqueous liquid electrolyte secondary battery according to claim 8, wherein lithium titanium oxide (LTO), a carbon material, or a composite carbon material is contained as an active substance of the negative electrode.

11. An additive for a non-aqueous secondary battery liquid electrolyte, comprising a compound satisfying any one selected from (Aa) to (Ac):

(Aa) a compound having two or more cyclopropane structures in the molecule thereof

(Ab) a compound having a cyclopropane structure and a group selected from an acryloyl group and a vinylphenyl group

(Ac) a compound having a cyclopropane structure and a group selected from among formulas (Ac-a) to (Ac-c)