# US 10,122,043 B2 · Ionically conductive compounds and related uses

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- Number: US 10,122,043 B2
- Document ID: US10122043B2
- Status: Granted
- Kind: B2
- Application number: 15/915,309
- Filed: 2018-03-08
- Published: 2018-07-12
- Granted: 2018-11-06
- Earliest claimed: 2015-11-24
- Assignees: Sion Power Corporation; BASF SE
- Applicants: Sion Power Corporation; BASF SE
- Inventors: Hui Du; Tracy Earl Kelley; Chariclea Scordilis-Kelley; Holger Schneider; Klaus Leitner; Joern Kulisch; Marina Safont-Sempere; Johan ter Maat
- Web page: https://patentgrep.com/patent/US10122043B2

## CPC

- H01M 10/0562: Solid materials
- H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
- H01M 50/434: Ceramics
- H01M 50/46: Separators, membranes or diaphragms characterised by their combination with electrodes
- H01M 50/497: Ionic conductivity
- H01M 2220/30: Batteries in portable systems, e.g. mobile phone, laptop
- H01M 2300/0068: inorganic
- Y02E 60/10: Energy storage using batteries
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

Articles, compositions, and methods involving ionically conductive compounds are provided. The disclosed ionically conductive compounds may be incorporated into an electrochemical cell (e.g., a lithium-sulfur electrochemical cell, a lithium-ion electrochemical cell, an intercalated-cathode based electrochemical cell) as, for example, a protective layer for an electrode, a solid electrolyte layer, and/or any other appropriate component within the electrochemical cell. In certain embodiments, electrode structures and/or methods for making electrode structures including a layer comprising an ionically conductive compound described herein are provided.

## Claims

### Claim 1

A compound of formula (I):
Li2xSx+w+5zMyP2z (I)
wherein:
M is selected from the group consisting of Lanthanides, Group 3, Group 4, Group 5, Group 6, Group 7, Group 8, Group 9, Group 12, Group 13, and Group 14 atoms, and combinations thereof,
x is 8-16,
y is 0.1-1.5 or 3.5-6,
w is 0.1-15, and
z is 0.1-3.

### Claim 2

A compound of formula (I):
Li2xSx+w+5zMyP2z (I)
wherein:
M is selected from the group consisting of Lanthanides, Group 3, Group 4, Group 5, Group 6, Group 7, Group 8, Group 9, Group 12, Group 13, and Group 14 atoms, and combinations thereof,
x is 8-16,
y is 0.1-6,
w is y or 1.5y, and
z is 0.1-3.

### Claim 3 (depends on 1)

A compound as in claim 1, wherein x is 10 or greater.

### Claim 4 (depends on 1)

A compound as in claim 1, wherein x is 10-14.

### Claim 5 (depends on 1)

A compound as in claim 1, wherein z is 1.

### Claim 6 (depends on 1)

A compound as in claim 1, wherein M is selected from the group consisting of silicon, tin, germanium, zinc, iron, zirconium, aluminum, and combinations thereof.

### Claim 7 (depends on 1)

A compound as in claim 1, wherein the compound of formula (I) has a cubic structure.

### Claim 8 (depends on 1)

A compound as in claim 1, wherein the compound of formula (I) is selected from the group consisting of Li16MS15SiP2, Li20S17SiP2, Li21S17.5Si92, Li22S18SiP2, Li24S19SiP2, Li28S21SiP2, Li24S19GeP2, Li21SiP2S17.5, Li21AIP2S17, Li17AIP2S15, Li21BP2S17, and Li21GaP2S17.

### Claim 9

An article for use in an electrochemical cell, comprising:
a compound of formula (I):
Li2xSx+w+5zMyP2z (I)
wherein:
M is selected from the group consisting of Lanthanides, Group 3, Group 4, Group 5, Group 6, Group 7, Group 8, Group 9, Group 12, Group 13, and Group 14 atoms, and combinations thereof;
x is 8-16,
y is 0.1-1.5 or 3.5-6,
w is 0.1-15, and
z is 0.1-3.

### Claim 10 (depends on 9)

An article as in claim 9, comprising a layer comprising the compound of formula (I).

### Claim 11 (depends on 9)

An article as in claim 9, comprising the compound of formula (I) deposited on a layer.

### Claim 12 (depends on 9)

An article as in claim 9, comprising a plurality of particles that comprise the compound of formula (I).

### Claim 13 (depends on 9)

An article as in claim 9, comprising a layer comprising a plurality of particles that comprise the compound of formula (I).

### Claim 14 (depends on 12)

An article as in claim 12, wherein the plurality of particles have an average largest cross-sectional dimension of greater than or equal to 10 nm and less than or equal to 100 microns.

### Claim 15 (depends on 12)

An article as in claim 12, wherein the plurality of particles have an average ion conductivity of greater than or equal to 10−4 S/cm.

### Claim 16 (depends on 10)

An article as in claim 10, wherein the layer comprising the compound of formula (I) is in direct contact with an electrode.

### Claim 17 (depends on 10)

An article as in claim 10, wherein the layer comprising the compound of formula (I) has an average ion conductivity of greater than or equal to 10−4 S/cm.

### Claim 18 (depends on 10)

An article as in claim 10, wherein at least a portion of the layer comprising the compound of formula (I) is crystalline.

### Claim 19 (depends on 18)

An article as in claim 18, wherein the layer comprising the compound of formula (I) is greater than or equal to 50 wt. % and less than or equal to 99 wt. % crystalline.

### Claim 20 (depends on 9)

An article as in claim 9, wherein the compound is selected from the group consisting of Li16S15SiP2, Li20S17SiP2, Li21S17Si2P, Li21S17.5SiP2, Li22S18SiP2, Li24S19SiP2, Li28S21SiP2, Li24S19GeP2, Li21SiP2S17.5, Li21AlP2S17, Li17AlP2S15, Li21BP2S17, and Li21GaP2S17.