# US 12,113,171 B2 · Compound, electrolytic solution additive, electrolytic solution, electrochemical device, lithium ion secondary battery, and module

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- Number: US 12,113,171 B2
- Document ID: US12113171B2
- Status: Granted
- Kind: B2
- Application number: 17/410,635
- Filed: 2021-08-24
- Published: 2022-05-12
- Granted: 2024-10-08
- Earliest claimed: 2019-02-27
- Assignees: Daikin Industries, Ltd.
- Applicants: Daikin Industries, Ltd.
- Inventors: Tomoya Hidaka; Shigeaki Yamazaki; Akinori Tani; Yoshiko Kuwajima
- Web page: https://patentgrep.com/patent/US12113171B2

## CPC

- C07F 9/095: {Compounds containing the structure P(=O)-O-acyl, P(=O)-O-heteroatom, P(=O)-O-CN}
- H01M 10/0567: characterised by the additives
- C07F 9/09: Esters of phosphoric acids
- H01G 11/64: characterised by additives
- H01M 10/052: Li-accumulators
- H01G 11/06: with one of the electrodes allowing ions to be reversibly doped thereinto, e.g. lithium ion capacitors [LIC]
- H01G 11/62: characterised by the solute, e.g. salts, anions or cations therein
- H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
- H01M 2300/0025: Organic electrolyte
- Y02E 60/10: Energy storage using batteries
- C07F: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM (metal-containing porphyrins C07D487/22)
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01G: CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE (selection of specified materials as dielectric H01B3/00; capacitors having potential barriers H10D1/62, H10K10/10)
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A compound represented by the following formula (1): wherein R101 to R103, each independently, are a C1-C6 organic group, optionally contain at least one selected from the group consisting of a hetero atom and an unsaturated bond, and are optionally linear, branched, or cyclic. Also disclosed is an electrolyte solution containing the compound, an electrochemical device containing the electrolyte solution, a lithium ion secondary battery containing the electrolyte solution and a module including the electrochemical device or the lithium ion secondary battery.

## Claims

### Claim 1

A compound represented by the following formula (1)
wherein R101 to R103, each independently, are a C1-C6 organic group, optionally contain at least one selected from the group consisting of a hetero atom and an unsaturated bond, and are optionally linear, branched, or cyclic.

### Claim 2 (depends on 1)

An additive for an electrolyte solution, the additive comprising the compound according to claim 1.

### Claim 3 (depends on 1)

An electrolyte solution comprising the compound according to claim 1.

### Claim 4 (depends on 3)

The electrolyte solution according to claim 3,
wherein the compound is contained in an amount of 0.01 to 10% by mass relative to the electrolyte solution.

### Claim 5 (depends on 3)

The electrolyte solution according to claim 3, further comprising at least one compound (21) selected from the group consisting of a compound represented by the following formula (21A) and a compound represented by the following formula (21B),
the formula (21A) being:
wherein R201 and R202, each independently, are a C1-C10 organic group, optionally contain at least one selected from the group consisting of a hetero atom and an unsaturated bond, and optionally contain a ring,
the formula (21B) being:
wherein R203 to R205, each independently, are a C1-C10 organic group, optionally contain at least one selected from the group consisting of a hetero atom and an unsaturated bond, and optionally contain a ring.

### Claim 6 (depends on 5)

The electrolyte solution according to claim 5,
wherein the compound (21) is contained in an amount of 0.001 to 5.0% by mass relative to the electrolyte solution.

### Claim 7 (depends on 3)

An electrochemical device comprising the electrolyte solution according to claim 3.

### Claim 8 (depends on 3)

A lithium ion secondary battery comprising the electrolyte solution according to claim 3.

### Claim 9 (depends on 7)

A module comprising the electrochemical device according to claim 7.

### Claim 10 (depends on 8)

A module comprising the lithium ion secondary battery according to claim 8.