1. Title of the invention

Manufacture of special graphite membranes made up of Platinum, Nickel and Vanadium pentoxide for construction of fuel cell.

2. Applicant

Name : Eesavyasa Technologies Pvt. Ltd.
Nationality : Indian

Address : 108-B, I.D.A. Khanapuram, Khammam(DT), Andhra Pradesh. Pin: 507002

3. Preamble to the description:

Complete specification:

Summary:

In the summary of invention, each important salient feature is explained as follows:

1. In the proposed method of invention sputtering deposition or any similar thin film layer deposition methods are used in inert gas environments provided in a chamber with microprocessor controlled facilities and view port provisions. Here constructing a suitable chamber will decide the quality of the membrane to be produced.

2. A suitable non-woven fabric made up of either glass polymer or Granulated Activated Carbon (G.A.C) in minimum thickness will be taken for deposition of graphite particles in the first layer of vapour deposition.

3. This can be even achieved by pouring molten solution of graphite and soaking in solvents like carbon disulpide for certain time period to distribute uniformly graphite over the surface.

4. A mixture of platinum, nickel, vanadium pentoxide and palladium metal will be taken separately one after the other by placing their metal rods as positive electrode and subjected for electric discharge under high voltage to deposit them over fabric taken as negative electrode.

4. Description

In this method of invention a special type of membrane fabric is produced using sputter
deposition method or evaporative vapour deposition method or any other similar method to make a fine thin film layer on a selected fabric with mixture of platinum, nickel, palladium and vanadium pentoxide solutions. This is a method designed to take any type of woven fabric made up of micro particle coated Granulated Activated Carbon (G.A.C) or Glass fiber reinforced wool. It will be dissolved in carbon disulphide, carbon tetrachloride or any other suitable solvent in which graphite powder will be soaked. This reaction can be even done manually under controlled environment by sprinkling graphite fused solution with devices like pressure injectors to uniformly spread and till required thickness of material be obtained. This fabric in which each pore is loosely sinked with graphite conductive material is taken for further deposition of other metal mixture in a sputter diffusion chamber where evacuation at low pressure is maintained. A fixed ration of nickel, palladium, vanadium pentoxide and platinum metal will be taken in their fused states by keeping in four different crucibles and subjected for vapour deposition over the fabric filled with graphite material. To achieve better results the fabric coated with graphite will be taken as negative pole in sputter chamber and the metal solutions in which their metal electrodes will be taken as positive electrodes to undergo electrolysis where they are deposited uniformly as layer by layer on each other. This type of membrane in which thin films of mentioned metal mixture acts as an alternative membrane for present system of using expensive platinum coated membranes which are cost expensive.

When the above type fabric membrane is used, due to the presence of palladium metal on its surface hydrogen gas will undergo occlusion property which itself is a salient feature in providing free mobility of electrons in construction the fuel cell. This membrane can be used in any type of fuel cells where electrolysis of water, metal oxides or salt solutions can be electrolyzed.

Background of invention

In fuel cell construction different types of porous media are used to provide a media through which mobility of ions is allowed, but not the compounds. There are several type of medias made up of non-woven fabric of carbon, graphite, coke or different kind of materials where platinum powder will be layered. In the present system of constructing fuel cell, the surface area oa platinum metal provides contact area for fuel cell functionality. Though there are different trials that are taking place in which the thickness of the platinum layer is altered, o solid effort is observed in phenomenally reducing the usage of expensive platinum metal with other metal sources. In some 2 procedures, nickel deposition is also tried but nickel presence alone cannot address the requirement.

Vanadium pentoxide, an efficient catalyst provides surface area as a platform where gases undergo oxidation at lower temperatures also. The mixture of these possible alternatives taken together in one metallic solution and then depositing provides a viable alternative.

5. Claims

1. We claim that the present method of invention provides an economic and viable solution for usage of expensive platinum based membranes used in fuel cell construction.

2. We claim that in electrolysis of hydrogen salts or water or solid fuels or salt solutions, a viable graphite coated membrane with mixture of salts deposition as mentioned in invention is used for constructing the fuel cell.

3. We claim that by using the palladium metal that can provide surface for occlusion is a novel concept which ensures increased rate of hydrogen ion mobility.

4. We claim that the invention of membranes in claim number 1, is used for production of power generations, construction of batteries etc.

5. We claim that the usage of our invention of fuel cell membrane is a environment friendly solution.