Hybrid nanolaminate electrodes for Li-ion batteries

Patent metadata

Field	Value
Publication number	US-11108031-B2
Application number	US-201716463495-A
Country	US
Kind code	B2
Filing date	Nov 27, 2017
Priority date	Nov 25, 2016
Publication date	Aug 31, 2021
Grant date	Aug 31, 2021

Abstract

An electrode for a Lithium battery, comprising: a multi-dyad nanolaminate stack formed of a metal oxide layer of the group TiO2, MnO2 or combinations thereof, ranging between 0.3 and 300 nm; separated by a decoupling layer.

First claim

The invention claimed is:

1. An electrode for a Lithium battery, the electrode comprising: a multi-dyad laminate stack formed of multiple ones of a metal oxide layer including one or a combination of metal oxides taken from the group consisting of: TiO2, and MnO2,
wherein the metal oxide layer has a layer thickness ranging between 0.3 and 300 nm;
wherein a pair of the multiple ones of the metal oxide layer are separated by a decoupling layer; and
wherein the decoupling layer is an electroconductive polymer layer having a thickness ranging between 0.1 and 10 nm.

2. The electrode according to claim 1 wherein the decoupling layer is formed by a compound characterized by X 1 —R—X 2 ; an electroconductive molecular backbone (R) with a group X 1 and a group X 2 , and where X 1 and X 2 can be identical.

3. The electrode according to claim 2 wherein X 1 and X 2 are functional groups that are reactive towards a metal precursor adsorbed on a surface of the metal oxide layer of the multi-dyad laminate stack.

4. The electrode according to claim 2 , wherein X 1 and X 2 are each individually chosen from the group consisting of: a hydroxyl (—OH), an amine (—NH 2 ), a carboxylic acid (—COOH), and a thiol (—SH).

5. The electrode according to claim 2 , wherein the compound is formed by any one or more of the group consisting of: a Benzenediol, a heterocyclic aromatic diol, and a diol including a linear conjugated backbone.

6. A method of manufacturing an electrode for a Lithium battery, the method comprising the providing a substrate and repeatedly performing the steps of:
depositing a titanium oxide, manganese oxide, or a mixture thereof in a first deposition stage, to provide a sheet of titanium oxide, manganese oxide, or a mixture thereof, having a thickness ranging between 3 and 300 nm; and
depositing an electroconductive polymer in a second stage, to provide a monolayer of electroconductive polymer,
thereby providing a multi-dyad nanolaminate stack formed of nanosheets of titanium oxide, manganese oxide, or a mixture of titanium oxide and manganese oxide.

7. The method according to claim 6 , wherein said first deposition stage is an atomic layer deposition (ALD) process wherein a titanium precursor and an oxygen precursor are used.

8. The method according to claim 6 , wherein said second deposition stage is a molecular layer deposition (MLD) process wherein an organic precursor is used.

9. The method according to claim 6 , wherein said first and second deposition stages are carried out by any one or more of the group consisting of: an atomic layer deposition (ALD) process, a molecular layer deposition (MLD) process, a chemical vapor deposition (CVD) process, and a sputtering process.

10. The method according to claim 6 , wherein said first and second deposition stages are carried out in a single run of a deposition tool.

11. The method according to claim 6 , wherein said substrate is three-dimensionally structured, having one or more of the group consisting of: a high aspect-ratio micro-pillars, a high aspect-ratio micro-trenches, a plurality of nanowires, meshes, (nano)porous structures, and three-dimensional scaffolds.

12. An electrode for a Lithium battery, comprising: a multi-dyad laminate stack formed of a metal oxide layer selected from of the group consisting of: TiO 2 , MnO 2 , and combinations thereof,
wherein the metal oxide layer has a layer thickness ranging between 0.3 and 300 nm,
wherein a pair of the multiple ones of the metal oxide layer are separated by a decoupling layer, and
wherein the decoupling layer is a single monolayer.

13. The electrode according to claim 12 wherein the decoupling layer is formed by a compound characterized by X 1 —R—X 2 ; an electroconductive molecular backbone (R) with a group X 1 and a group X 2 , and where X 1 and X 2 can be identical.

14. The electrode according to claim 13 wherein X 1 and X 2 are functional groups that are reactive towards a metal precursor adsorbed on a surface of the metal oxide layer of the multi-dyad laminate stack.

15. The electrode according to claim 13 , wherein X 1 and X 2 are each individually chosen from the group consisting of: a hydroxyl (—OH), an amine (—NH 2 ), a carboxylic acid (—COOH), and a thiol (—SH).

16. The electrode according to claim 13 , wherein the compound selected from any one or more of the group consisting of: a Benzenediol, a heterocyclic aromatic diol, and a diol including a linear conjugated backbone.

17. An electrode for a Lithium battery, comprising: a multi-dyad laminate stack formed of a metal oxide layer selected from the group consisting of: TiO2, MnO2, and combinations thereof,
wherein the metal oxide layer has a layer thickness ranging between 0.3 and 300 nm,
wherein a pair of the multiple ones of the metal oxide layer are separated by a decoupling layer,
wherein the decoupling layer is formed by a compound characterized by X 1 —R—X 2 , an electroconductive molecular backbone (R) with a group X 1 and a group X 2 , and where X 1 and X 2 can be identical.

18. The electrode according to claim 17 wherein X 1 and X 2 are functional groups that are reactive towards the metal precursor adsorbed on the surface of the laminate stack.

19. The electrode according to claim 17 , wherein X 1 and X 2 are each individually chosen from the group consisting of: a hydroxyl (—OH), an amine (—NH 2 ), a carboxylic acid (—COOH), and a thiol (—SH).

20. The electrode according to claim 17 , wherein the compound is formed by any of the group consisting of: a Benzenediol, a heterocyclic aromatic diol, and a diol including a linear conjugated backbone.

Assignees

• TNO

Inventors

• Poodt Paulus Willibrordus George
• Unnikrishnan Sandeep
• Vereecken Philippe
• Moitzheim Sebastien Paul Norbert
• Van Mol Antonius Maria Bernardus

Classifications

• H01M4/0426

  Sputtering · CPC title

• H01M10/056

  characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes · CPC title

• H01M10/0525

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

• H01M4/0428 Primary

  Chemical vapour deposition · CPC title

• H01M10/058

  Construction or manufacture · CPC title