IP Library › Granted Patent US 10,461,360
Granted Patent B2
US 10,461,360 · App. 15/639,937 · Granted Oct 29, 2019

Electrode compositions for solid-state batteries

Inventors: Cory O'Neill (San Diego, CA); Bin Li (San Diego, CA); Alex Freigang (San Diego, CA); Deidre Strand (San Diego, CA)
Assignee: Wildcat Discovery Technologies, Inc.
H01M10/0525C01D15/00C08F14/22C08G65/08C09D127/16H01M4/13H01M4/131H01M4/62H01M4/622H01M4/623C01F17/0043C01G23/005C01G35/006
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Quick Facts
Patent No.
US 10,461,360
App. No.
15/639,937
Granted
Oct 29, 2019
Kind
B2
Abstract

An electrode formulation including a polymer, which can be ion-conducting or non-conducting; an ion-conducting inorganic material; a lithium salt; and optionally an additive salt.

Claims (19)

1. A lithium ion battery, comprising:

an anode,

a cathode comprising an unsintered film comprising an NMC material, an additive salt, an ion-conducting inorganic material that is not electrochemically active within an operating voltage of between 3.0V and 4.1V, and a polymer, and

a solid-state electrolyte.

2. The lithium ion battery of claim 1 wherein the additive salt is selected from the group consisting of lithium bis(trifluoromethanesulfonyl)imide, lithium tetrafluoroborate, lithium hexafluoroarsenate, lithium bis(oxalato)borate, lithium chlorate, lithium bis(fluorosulfonyl)imide, and lithium triflate.

3. The lithium ion battery of claim 1 , wherein the additive salt comprises lithium bis(trifluoromethanesulfonyl)imide.

4. The lithium ion battery of claim 1 wherein the polymer is ion-conducting.

5. The lithium ion battery of claim 1 wherein the polymer comprises PEO.

6. The lithium ion battery of claim 1 wherein the polymer is non ion-conducting.

7. The lithium ion battery of claim 1 wherein the polymer comprises PVdF.

8. The lithium ion battery of claim 1 wherein the ion-conducting inorganic material is selected from the group consisting of Li 1.3 Ti 1.7 Al 0.3 (PO 4 ) 3 , Li 6.5 La 3 Zr 1.5 Ta 0.5 O 12 , Li 10 SnP 2 S 12 , P 2 S 5 —Li 2 S glass, Li 1+x+y Al x Ti 2−x Si y P 3−y O 12 , or Li 2 PO 2 N.

9. The lithium ion battery of claim 1 wherein the ion-conducting inorganic material comprises a phosphate group.

10. The lithium ion battery of claim 1 wherein the ion-conducting inorganic material comprises Li 1.3 Ti 1.7 Al 0.3 (PO 4 ) 3 .

11. The lithium ion battery of claim 1 wherein the polymer comprises PVdF, the additive salt comprises lithium bis(trifluoromethanesulfonyl)imide, and the ion-conducting inorganic material comprises Li 1.3 Ti 1.7 Al 0.3 (PO 4 ) 3 .

12. The lithium ion battery of claim 1 wherein the ion-conducting inorganic material comprises Li 6.5 La 3 Zr 1.5 Ta 0.5 O 12 .

13. The lithium ion battery of claim 1 wherein the ion-conducting inorganic material comprises Li 10 SnP 2 S 12 .

14. The lithium ion battery of claim 1 wherein the ion-conducting inorganic material comprises P 2 S 5 —Li 2 S glass.

15. The lithium ion battery of claim 1 wherein the ion-conducting inorganic material comprises Li 1+x+y Al x Ti 2−x Si y P 3−y O 12 .

16. The lithium ion battery of claim 1 wherein the ion-conducting inorganic material comprises Li 2 PO 2 N.

Assignments (4)
SECURITY INTEREST Recorded Dec 30, 2025
From: WILDCAT DISCOVERY TECHNOLOGIES
To: HSBC VENTURES USA INC.
Reel/Frame 074128/0374 →
RELEASE OF SECURITY INTEREST Recorded May 13, 2022
From: SILICON VALLEY BANK
To: WILDCAT DISCOVERY TECHNOLOGIES, INC.
Reel/Frame 060063/0733 →
SECURITY INTEREST Recorded Nov 6, 2018
From: WILDCAT DISCOVERY TECHNOLOGIES, INC.
To: SILICON VALLEY BANK
Reel/Frame 047426/0902 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 11, 2017
From: O'NEILL, CORY; LI, BIN; FREIGANG, ALEX; STRAND, DEIDRE
To: WILDCAT DISCOVERY TECHNOLOGIES, INC
Reel/Frame 043839/0247 →