Energy storing electrical device and a method of constructing an electrical device

Patent metadata

Field	Value
Publication number	US-11087931-B2
Application number	US-201816003380-A
Country	US
Kind code	B2
Filing date	Jun 8, 2018
Priority date	Jun 8, 2018
Publication date	Aug 10, 2021
Grant date	Aug 10, 2021

Abstract

A system and method for an energy storing electrical device includes a first conductive electrode, a second conductive electrode, an electrolyte disposed between the first conductive electrode and a second conductive electrode, each electrode further comprising an integrated first layer and a second layer, and; wherein the second layer comprises a substrate, the substrate comprising a textile portion or a polymer portion and a conductive layer formed by a noble metal disposed on and attached to the substrate.

First claim

The invention claimed is:

1. An energy storing electrical device comprising:
a first conductive electrode,
a second conductive electrode,
an electrolyte disposed between the first conductive electrode and a second conductive electrode,
each electrode further comprising an integrated first layer defining an electrode layer and a second layer defining a current collector layer, and;
wherein the second layer comprises a laminated structure including a non-conductive substrate of a textile layer or a polymer layer and a conductive layer formed by a continuous layer of noble metal disposed on and attached to a top surface of the non-conductive substrate;
wherein the first layer comprises a layer of polypyrrole deposited on the non-conductive substrate or the conductive layer of the second layer, the layer of polypyrrole including polypyrrole nanostructures arranged in a lattice structure and in contact with the noble metal so as to form a continuous conductive network facilitating ion transportation and electrochemical reaction during an operation of the energy storing electrical device; and
wherein the layer of noble metal further operates as a conductive buffer layer to alleviate a structural deterioration of the polypyrrole nanostructure caused by the electrochemical reaction during the operation of the energy storing electrical device.

2. An energy storing electrical device in accordance with claim 1 , wherein the noble metal is gold.

3. An energy storing electrical device in accordance with claim 2 , wherein the gold is a gold leaf that is applied to the non-conductive substrate by a gilding process, the gold leaf being applied as a thin layer such that the gold leaf is laminated onto the non-conductive substrate.

4. An energy storing electrical device in accordance with claim 3 , wherein the textile portion comprises a multi-faceted textile sheet and wherein the noble metal is applied onto a single face of the textile sheet.

5. An energy storing electrical device in accordance with claim 4 , wherein the polymer portion comprises a multi-faceted polymer sheet and wherein the noble metal is disposed onto a single face of the polymer sheet.

6. An energy storing electrical device in accordance with claim 4 , wherein the polymer sheet comprises a polyurethane polymer sheet.

7. An energy storing electrical device in accordance with claim 3 , wherein the textile portion is a polyester textile.

8. An energy storing electrical device in accordance with claim 2 , wherein the gold is applied as layer comprising a thickness of less than 0.3 μm.

9. An energy storing electrical device in accordance with claim 2 , wherein the gold is applied as a layer comprising a thickness between 0.05 μm and 0.15 μm.

10. An energy storing electrical device in accordance with claim 9 , wherein the polyester textile electrically non-conductive.

11. An energy storing electrical device in accordance with claim 10 , wherein the polyurethane polymer sheet is electrically non-conductive.

12. An energy storing electrical device in accordance with claim 1 , wherein the noble metal is gold and the gold is deposited onto the non-conductive substrate by a gilding process.

13. An energy storing electrical device in accordance with claim 1 , wherein the second layer comprises a textile portion and a noble metal being applied to the textile portion.

14. An energy storing electrical device in accordance with claim 1 , wherein the second layer comprises a polymer portion and a noble metal being applied to the polymer portion.

15. An energy storing electrical device in accordance with claim 1 , wherein the non-conductive substrate the textile portion or the polymer portion is negatively charged, the noble metal being positively charged and the noble metal being retained on the non-conductive substrate by electrostatic interaction.

16. An energy storing electrical device in accordance with claim 1 , wherein the layer of polypyrrole comprises polypyrrole nanostructures of polypyrrole nanorods or polypyrrole nanowires that are electrodeposited onto the second layer to define the first layer.

17. An energy storing electrical device in accordance with claim 1 , wherein the electrolyte comprises an electrically conductive fluid or gel or hydrogel sandwiched between the first electrode and the second electrode.

18. An energy storing electrical device in accordance with claim 1 , wherein the electrolyte comprises H 2 SO 4 .

19. An energy storing electrical device in accordance with claim 1 , wherein the energy storing electrical device comprises a separator disposed between the first electrode and the second electrode.

20. An energy storing electrical device in accordance with claim 19 , wherein the separator comprises a non-woven cloth.

21. An energy storing electrical device in accordance with claim 1 , wherein the first layer is an electrode layer and the second layer is a current collector layer, wherein the electrode layer and the current collector layer are formed as a single unit and the single unit defining each of the first conductive electrode and second conductive electrode.

22. An energy storing electrical device in accordance with claim 1 , wherein each electrode is substantially flexible about at least one axis.

23. An energy storing electrical apparatus, comprising a plurality of interconnected energy storing electrical devices in accordance of claim 1 , a common substrate forming the non-conductive substrate of each of the plurality of energy storing electrical device; and an electrical connection arranged to electrically connect the plurality of energy storing electrical device.

24. An electrode for use in an energy storing electrical device comprising:
a first layer defining an electrode layer,
a second layer defining a current collector layer coupled to the first layer,
wherein the second layer comprises a laminated structure including a non-conductive substrate of a textile layer or a polymer layer and a conductive layer formed by a continuous layer of noble metal disposed on and attached to a top surface of the non-conductive substrate;
wherein the first layer comprises a layer of polypyrrole deposited on the non-conductive substrate or the conductive layer of the second layer, the layer of polypyrrole including polypyrrole nanostructures arranged in a lattice structure and in contact with the noble metal so as to form a continuous conductive network facilitating ion transportation and electrochemical reaction during an operation of the energy storing electrical device; and
wherein the layer of noble metal further operates as a conductive buffer layer to alleviate a structural deterioration of the polypyrrole nanostructures caused by the electrochemical reaction during the operation of the energy storing electrical device.

25. An electrode for use in an energy storing electrical device in accordance with claim 24 , wherein the current collector layer and the electrode layer integrated together and forming a single unit defining the electrode for use in an energy storing electrical device.

26. An electrode for use in an energy storing electrical device in accordance with claim 24 , wherein the noble metal is gold.

27. An electrode for use in an energy storing electrical device in accordance with claim 26 , wherein the gold is a gold leaf that is applied to the non-conductive substrate by a gilding process, t

Assignees

• Univ City Hong Kong

Inventors

• Zhi Chunyi
• Wang Yukun

Classifications

• B32B15/02

  Layer formed of wires, e.g. mesh · CPC title

• B32B2307/724

  Permeability to gases, adsorption · CPC title

• B32B2262/065

  Lignocellulosic fibres, e.g. jute, sisal, hemp, flax, bamboo · CPC title

• D06B3/10

  of fabrics (D06B3/24, D06B3/28, D06B3/32 take precedence; jiggers D06B3/32) · CPC title

• B32B2262/0292

  Polyurethane fibres · CPC title