Electrode and process for preparing the electrode and devices thereof

Patent metadata

Field	Value
Publication number	US-2017348642-A1
Application number	US-201615175629-A
Country	US
Kind code	A1
Filing date	Jun 7, 2016
Priority date	Jun 7, 2016
Publication date	Dec 7, 2017
Grant date	—

Abstract

An electrode, process for preparing the electrode and devices thereof. An electrode comprising at least one metal deposited on a substrate; and at least one electrically conducting polymer. The devices comprising the electrode for energy storage and molecular separation.

First claim

We claim:

1 . A process for preparation of an electrode, wherein the process step comprises:
a) immersing substrate in brewed green tea for a period of time in the range of 1-24 hours to obtain modified substrate; b) immersing the modified substrate as obtained from step (a) in ammonical AgNO 3 solution for a period of time in the range of 10 minutes-8 hours to obtain silver nanoparticle coated substrate; c) keeping silver nanoparticle coated substrate as obtained from step (b) in metal plating solution of the pH ranging between 7-10 for a period of time in the range of 8-24 hours to obtain metal coated substrate; d) polymerizing the monomer on metal coated substrate as obtained from step (c) by soaking in electrically conducting solution for a period of time in the range of 5-30 minutes to obtain an electrode.

2 . The process as claimed in claim 1 , wherein the metal is selected from the group consisting of gold, palladium, nickel and copper.

3 . The process as claimed in claim 1 , wherein the substrate is selected from the group consisting of silk cocoons, silk yarn, cotton clothes, cotton threads papers, tree leaves and synthetic substrates.

4 . The process as claimed in claim 3 , wherein the synthetic substrate is selected from the group consisting of polycarbonate membranes, anodized alumina oxide membranes, glass slides and conducting glasses.

5 . The process as claimed in claim 4 , wherein the conducting glasses is selected from the group consisting of indium doped tin oxide and fluorine doped tin oxide.

6 . The process as claimed in claim 1 , wherein the electrically conducting solution is selected from the group consisting of polyaniline, polyethylene dioxythiophene, polypyrrole and derivatives of polythiophene.

7 . An electrode prepared by the process as claimed in claim 1 , wherein the electrode comprises:
a. at least one metal deposited on a substrate; and b. at least one electrically conducting polymer.

8 . The electrode as claimed in claim 7 , said electrode being fitted in a device, wherein the device is supercapacitor or molecular separator.

9 . A supercapacitor device, wherein said supercapacitor comprises:
a. at least two electrodes, said electrode being as claimed in claim 7 ; b. a polymer electrolyte filled porous separator;

10 . The supercapacitor device as claimed in claim 9 , wherein said electrolyte filled porous separator is selected from polymer electrolyte such as gel/plasticized electrolyte, PVA (polyvinyl alcohol)/acid or base or salts, PEO (polyethyleneoxide)/acid or base.

11 . The supercapacitor device as claimed in claim 10 , wherein the acid is selected from the group consisting of H 2 SO 4 , H 3 PO 4 , HClO 4 .

12 . The supercapacitor device as claimed in claim 10 , wherein the base is KOH.

13 . The supercapacitor device as claimed in claim 10 , wherein the salts selected from LiCl, LiClO 4 , KCl.

14 . The supercapacitor device as claimed in claim 9 , wherein said supercapacitor has capacitance in the range of 125 to 500 F/g.

15 . A molecular separator device, wherein said molecular separator comprises:
a. At least two half tubes; and b. at least one electrode as claimed in claim 7 having polymer coated metal substrate membrane.

16 . The molecular separator device as claimed in claim 15 , wherein the polymer is polyethylene dioxythiophene (PEDOT).

17 . The molecular separator device as claimed in claim 15 , wherein metal is gold.

18 . The molecular separator device as claimed in claim 15 , wherein the substrate is anodized alumina oxide.

Assignees

• Council Scient Ind Res

Inventors

• Krishnamoorthy Kothandam

Classifications

• D10B2211/04

  Silk · CPC title

• C23C18/44

  using reducing agents · CPC title

• C23C28/00

  Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D · CPC title

• C23C18/36

  using hypophosphites · CPC title

• H01G11/70

  characterised by their structure · CPC title