Anionic polymers, electrolytes comprising the same, and methods of manufacture thereof

Patent metadata

Field	Value
Publication number	US-11923504-B2
Application number	US-201716088928-A
Country	US
Kind code	B2
Filing date	Mar 28, 2017
Priority date	Mar 28, 2016
Publication date	Mar 5, 2024
Grant date	Mar 5, 2024

Abstract

The invention provides a novel anionic polymer useful as a solid electrolyte in a lithium battery. The electrolyte matrix provides directional, flexible, polymeric ion channels with 100% lithium conduction with low-to-no affinity of the matrix for the lithium ion, in part due to the low concentration or absence of lone pair electrons in the anionic polymer.

First claim

The invention claimed is:

1. An anionic polymer comprising a Lewis adduct in the polymeric backbone, wherein the polymer is represented by Formula III:

wherein R 1 and R 2 are each independently selected from the group consisting of H, and optionally substituted alkyl, haloalkyl, alkenyl, alkynyl, aryl, cycloalkyl, heteroaryl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl, and heterocycloalkylalkyl, and can optionally be joined to form a ring.

2. A composition comprising an anionic polymer comprising a Lewis adduct in the polymeric backbone, wherein the Lewis adduct comprises boron, further wherein a polymer molecule is adjacent to an ion channel.

3. A composition comprising the anionic polymer of claim 1 and a counterion.

4. The composition of claim 3 , wherein the counterion is selected from the group consisting of Li + , Na + , and Mg 2+ .

5. A film comprising the anionic polymer of claim 1 .

6. A crystal comprising the anionic polymer of claim 1 .

7. A solid electrolyte comprising the anionic polymer of claim 1 .

8. A battery comprising the electrolyte of claim 7 .

9. A method of preparing the anionic polymer of claim 1 , comprising mixing a Lewis acid and a Lewis base.

10. The method of claim 9 , wherein the Lewis acid is an organoborane and the Lewis base is an organometallic compound.

11. A method of growing the anionic polymer of claim 1 on a substrate, comprising dipping the substrate in a precursor, rinsing the substrate, and dipping the substrate in a different precursor.

12. The method of claim 11 , wherein the precursors are selected from the group consisting of an organoborane and an organometallic compound.

13. The method of claim 11 wherein the substrate is a conductive electrode.

Assignees

• Temple University—Of the Commonwealth System of Higher Education

Inventors

• Zdilla Mike
• Wunder Stephanie

Classifications

• H01M10/0565 Primary

  Polymeric materials, e.g. gel-type or solid-type · CPC title

• B01J41/13

  obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds · CPC title

• C08G79/08 Primary

  a linkage containing boron · CPC title

• H01M10/0525

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• H01M2300/0082

  Organic polymers · CPC title