# US 2014/0152269 A1 · Materials for Battery Electrolytes and Methods for Use

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- Number: US 2014/0152269 A1
- Document ID: US20140152269A1
- Status: Published application
- Kind: A1
- Application number: 14/176,120
- Filed: 2014-02-09
- Published: 2014-06-05
- Earliest claimed: 2011-06-09
- Assignees: Asahi Kasei Kabushiki Kaisha
- Applicants: Asahi Kasei Kabushiki Kaisha
- Inventors: Vinay Bhat; Gang Cheng; Steven Kaye; Bin Li; Risa Olugbile; Jen-Hsien Yang
- Web page: https://patentgrep.com/patent/US20140152269A1

## CPC

- H01M 10/0567: characterised by the additives
- C07F 7/0834: {Compounds having one or more O-Si linkage (for compounds with C-O-Si linkages see C07F7/18)}
- C07F 9/095: {Compounds containing the structure P(=O)-O-acyl, P(=O)-O-heteroatom, P(=O)-O-CN}
- C07F 9/098: {Esters of polyphosphoric acids or anhydrides}
- C07F 9/1415: {Compounds containing the structure P-O-acyl, P-O-heteroatom, P-O-CN}
- H01M 10/052: Li-accumulators
- H02J 7/00: Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H01M 2300/0025: Organic electrolyte
- Y02E 60/10: Energy storage using batteries
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- C07F: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM (metal-containing porphyrins C07D487/22)
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

Described herein are materials for use in electrolytes that provide a number of desirable characteristics when implemented within batteries, such as high stability during battery cycling up to high temperatures high voltages, high discharge capacity, high coulombic efficiency, and excellent retention of discharge capacity and coulombic efficiency over several cycles of charging and discharging. In some embodiments, a high voltage electrolyte includes a base electrolyte and a set of additive compounds, which impart these desirable performance characteristics.

## Claims

### Claim at position 1

-9. (canceled)

### Claim 10

An electrolyte solution comprising:
a salt;
a solvent; and
a compound represented by the formula (I):
wherein n is an integer from 1 to 20;
X is represented by the formula (II):
wherein for each X of the n number of X's, Ra is selected from the group consisting of substituted and unsubstituted C1-C20 alkenyl groups, Rb, is either not present or hydrogen, and Rc and Rd are each independently selected from the group consisting of hydrogen, substituted and unsubstituted C1-C20 alkyl groups, substituted and unsubstituted C1-C20 alkenyl groups, substituted and unsubstituted C1-C20 alkynyl groups, and substituted and unsubstituted C5-C20 aryl groups; and
R1, R2, R3, R4, R5, and R6 are independently selected from the group consisting of substituted and unsubstituted C1-C20 alkyl groups, substituted and unsubstituted C1-C20 alkenyl groups, substituted and unsubstituted C1-C20 alkynyl groups, and substituted and unsubstituted C5-C20 aryl groups.

### Claim 11 (depends on 10)

The electrolyte solution of claim 10 wherein Ra is selected from the group consisting of substituted and unsubstituted C1-C6 alkenyl groups.

### Claim 12 (depends on 10)

The electrolyte solution of claim 10 wherein Ra is a C1 alkenyl group and Rb is not present.

### Claim 13 (depends on 10)

The electrolyte solution of claim 10 wherein R1, R2, R3, R4, R5, and R6 are independently selected from the group consisting of substituted and unsubstituted C1-C6 alkyl groups.

### Claim 14 (depends on 10)

The electrolyte solution of claim 10 wherein R1, R2, R3, R4, R5, and R6 are independently selected from the group consisting of substituted and unsubstituted C1 alkyl groups.

### Claim 15 (depends on 10)

The electrolyte solution of claim 10 wherein R1, R2, R3, R4, R5, and R6 are each C1 alkyl groups.

### Claim 16 (depends on 10)

The electrolyte solution of claim 10 wherein Rc and Rd are each independently selected from the group consisting of hydrogen, substituted and unsubstituted C3-C6 alkyl groups, substituted and unsubstituted C4-C12 alkynyl groups, and substituted and unsubstituted C5-C12 aryl groups.

### Claim at position 9

-20. (canceled)

### Claim 21

An electrolyte solution, comprising:
a salt;
a solvent; and
a compound represented by the formula (I):
wherein n is an integer from 1 to 20 and X is represented by the formula (II):
wherein R1, R2, R3, R4, R5, and R6 are hydrogen, and Ra, Rb, Rc, and Rd are hydrogen.

### Claim 22 (depends on 10)

A battery comprising:
a cathode;
an anode; and
the electrolyte solution of claim 10.

### Claim 23 (depends on 22)

The battery of claim 22, wherein the n of Xn is 2.

### Claim 24 (depends on 23)

The battery of claim 23, wherein the cathode comprises an active cathode material for a voltage operation of at least 4.1 V relative to a lithium metal anode.

### Claim 25 (depends on 23)

The battery of claim 23, wherein the cathode comprises an active cathode material for a voltage operation of above 4.2 V relative to a lithium metal anode.

### Claim 26 (depends on 23)

The battery of claim 23, wherein the cathode comprises an active cathode material for a voltage operation of not less than 4.3 V relative to a lithium metal anode.

### Claim 27 (depends on 21)

A battery comprising:
a cathode;
an anode; and
the electrolyte solution of claim 21.

### Claim 28 (depends on 27)

The battery of claim 27, wherein the n of Xn is 2.

### Claim 29 (depends on 28)

The battery of claim 28, wherein the cathode comprises an active cathode material for a voltage operation of at least 4.1 V relative to a lithium metal anode.

### Claim 30 (depends on 28)

The battery of claim 28, wherein the cathode comprises an active cathode material for a voltage operation of above 4.2 V relative to a lithium metal anode.

### Claim 31 (depends on 28)

The battery of claim 28, wherein the cathode comprises an active cathode material for a voltage operation of not less than 4.3 V relative to a lithium metal anode.

### Claim 32 (depends on 24)

A method of using the battery of claim 24 comprising charging a voltage not less than 4.1 V into the battery.

### Claim 33 (depends on 32)

The method of claim 32 wherein the voltage is above 4.2 V.

### Claim 34 (depends on 32)

The method of claim 32 wherein the voltage is not less than 4.3 V.

### Claim 35 (depends on 29)

A method of using the battery of claim 29 comprising charging a voltage not less than 4.1 V into the battery.

### Claim 36 (depends on 35)

The method of claim 35 wherein the voltage is above 4.2 V.

### Claim 37 (depends on 35)

The method of claim 35 wherein the voltage is not less than 4.3 V.