GB2494859A - An electrolyser with U-shaped electrodes - Google Patents
An electrolyser with U-shaped electrodes Download PDFInfo
- Publication number
- GB2494859A GB2494859A GB1115346.7A GB201115346A GB2494859A GB 2494859 A GB2494859 A GB 2494859A GB 201115346 A GB201115346 A GB 201115346A GB 2494859 A GB2494859 A GB 2494859A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fuel cell
- hydrogen fuel
- cell according
- hydrogen
- text
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/70—Assemblies comprising two or more cells
- C25B9/73—Assemblies comprising two or more cells of the filter-press type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/10—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone
- F02M25/12—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone the apparatus having means for generating such gases
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Abstract
An electrolyser comprising an anode consisting of two positive blades 13 (figure 2), a cathode consisting of two negative blades 14 (figure 3), both formed from single sheets of metal are bent into a U-shape. The blades are constructed to straddle each other in a specific sequence. The electrodes also comprise integral tangs 15 to connect to 10 the battery lead 12. Neutral plates 18 are provided. The electrodes and the plates are separated by rubber insulation 17. The resulting assembly 6 is joined together by connection 5 and housed in a sealed case of two halves 4 and 8. Three connectors are located in the lid of the case 4: a gas outlet 1, a liquid inlet 2 and an electrical connector 3.
Description
S Hydrogen fuel cell enhancement for engines The present invention relates generally to the field of internal combustion engines More particularly, this invention relates to methods and compositions for increasing fuel efficiency and modifying emissions characteristics of internal combustion engines powered by any fuel resource, for example finite fossil or renewable biofuels, through the hydrogen enhancement of fuel cells. The internal combustion engine is unequalled in its primary application as a portable power source. However, internal combustion engine use has been increasingly criticised largely, for example, because of low efficiency and polluting emissions.
It is well known that the electrolysis of water is the decomposition of water (H20) into oxygen (0) and hydrogen gas (H2) due to an electric current being passed through the water. Such an application is commonplace in the automotive industry where dry cells are used, meaning that part of the stainless steel used in the electrolysis process is outside the water. It is also well-known that in such a system the amount of hydrogen produced fluctuates. In addition the design of a conventional hydrogen fuel cell restricts the volume of water able to be contained in the void. This is due in no small part to the horizontal nature of the design whereby water is drawn in one side and is unable to completely fill the void above the inlet valve. This creates fluctuations in hydrogen production with less current flowing through because the cell plates are not covered with water all the time thus reducing the amperage output and therefore hydrogen oxygen production.
Furthermore conventional hydrogen cells are prone to the leaching of iron from plate edges which contributes to reduction in efficiency. Also in typical hydrogen fuel cells the production of hydrogen and oxygen is reduced due to the surfaces of the plates being untreated or scuffed and sealed away from the water by the coating applied during the stainless steel production process. Any edge' surface or hole in the plate will be the primary source production of the hydrogen.
Adding together these shortcomings in conventional hydrogen fuel cells means that the amount of hydrogen produced is greatly reduced for most of the time It is the intention of the present invention to overcome the above shortcomings and describe a hydrogen fuel cell which offers a guaranteed production of hydrogen for 100% of the time with no fluctuations white using less energy.
To achieve this, in accordance with a first aspect of the present invention, there is provided a vertical assembly comprising a top casing and a bottom casing considerably smaller in overall size to existing hydrogen.fuel cells.
Located in the top casing are three connections; water inlet and gas outlet positioned either side of the central positive and negative electrical connections. The hydrogen fuel cell contains a single plate of two anode blades, a single plate of two cathode blades and nine neutral plates. All the plates are drilled with several holes and all the surfaces are ground on both sides to offer rough surfaces with peaks and troughs to enable good conductivity of hydrogen on the edges of the peaks and around the perimeter of the holes. The anode and cathode plates with their integral electrical connections are paired together and straddte the neutral plates facilitating a single connection instead of four which are commonly used with conventional hydrogen fuel cells.
In a preferred embodiment rubber sleeves surround just the edges of the anode and cathode plates leaving the majority of the plates exposed to prevent leaching at the edges1 to reduce heat and to reduce the negative effect of electrical current on the neutral plates when in use.
Between each third neutral plate a rubber sheet the same size as a neutral plate separates and insulates the surfaces between them. There are further rubber separators for the plates and anode and cathode blades, together with a variety of shaped rubber strips, which act as insulators.
The assembly of the plates is joined together by means of a central plastic screw and nut with a final rubber insulating sleeve fitted tightly over the completed assembly before it is lowered and placed into a bottom casing with a rubber separator piece placed inside at the base. The top casing is then fitted over the bottom casing, the two electrical terminals being positioned inside the central hole of the top casing ready to be connected to the battery terminals of an internal combustion engine.
A rubber gasket is placed around the flange of the bottom casing, care being taken to ensure it is accurately lined up and the two casing halves are bolted down with an array of bolts and nuts to create a gas tight seal.
The water and hydrogen connectors on the top casing are fitted with appropriate leads which are then attached to a water reservoir and a battery respectively.
As a result of the close proximity of the plates together with the configuration of the insulating rubber surrounding the anode and cathode plates, the configuration of the holes in the plates, the two halves of the casing being tightly sealed together on final assembly and the vertical orientation of the whole assembly, the creation of hydrogen in an internal combustion engine is not subject to fluctuation since the water content across the plates is constant.
With the plates covered by water 1009'o of the time the amperage output is therefore not subject to fluctuations, is continuous and runs at 100% of the time. For example, if 1 5A is the maximum output, the cell will run at that rate all the time, producing constant running amperage.
In addition, due to the configuration of the fuel cell there is no change in heat or pressure.
The stresses within the combustion chamber do not rise above the specification for that particular engine.
In order that the nature of the invention may be clearly understood an embodiment will now be described1 by way of example only, together with accompanying drawings, with reference to providing a method for enhancing the fuel efficiency of an internal combustion engine through the introduction of a more economical and higher performing hydrogen fuel cell.
S Figure 1 depicts a detailed exploded assembly view of essential features of the hydrogen fuel cell in accordance with aspects of the present invention.
Figures 2 and 3 depict the elevation of the anode and cathode plates with two blades each in accordance with aspects of the present invention.
Figure 4 depicts figures 2 and 3 with rubber insulation sleeves in accordance with aspects of the present invention.
Figure 5 depicts a top plan view of the assembled plates in accordance with aspects of the present invention.
Figure 6 depicts an end elevation view of the assembled plates in accordance with aspects of the present invention Figure 7 depicts a front elevation view of a neutral plate with three holes and specially designed insulation rubber attached to the surface in accordance with aspects of the present invention.
Figure 8 shows the results of tests undertaken by the University of Birmingham in accordance with aspects of the present invention.
S
Figure 1 shows a vertically orientated hydrogen fuel cell comprising two standard connectors 1 and 2 for water inlet and hydrogen gas outlet respectively and standard electrical connection 3, which are all fitted and securely sealed to top housing 4. Plates assembly 5 is secured together as a single unit by plastic screw and nut 5. Rubber sleeve 7 is fitted over the plates assembly 6, comprising anode plate 13, cathode plate 14 and neutral plates 18.
The assembly is then lowered into the bottom housing 8 at the base of which is positioned a damper in the form of strip of rubber. Insulation gasket 9 is laid on the flange joint and the bottom housing 8 is then offered up to the top housing 4. Two tangs 15 integral to the anode and cathode plates are the electrical terminals fitted to the electrical connection 3 in the top housing 4. The two housings are secured and sealed together via a series of nuts and bolts 11 arrayed around the flange perimeter, ready for standard electrical wiring 12 to be connected to 3.
In figures 2 and 3 identical flat sheets of metal preferably stainless steel, platinum or titanium are typically laser cut into the shape of the preferred embodiment to become, in figure 2, two anode blades 13, collectively described as an anode plate and, in figure 3, two cathode blades 14, collectively described as a cathode plate. An integral joining band 16 between the blades of both anode and cathode plates is shown at the top, electrical connection tang 15 is shown lower down and a set of three holes in each blade, the central one being the location hole for connecting the hydrogen fuel cell assembly together and the adjacent holes being the escape route for hydrogen production as well as facilitating the creation of hydrogen around the perimeter edges of the holes. The entire surface of the metal is ground on both sides to encourage the maximum production of hydrogen across the peaks of the rough surface.
In figure 4 the sheet of metal as shown in figures 2 and 3 has a rubber wrapping 17 fitted around the perimeter edges, common to both the anode plate and the cathode plate, to prevent the leaching of ions which would reduce the efficiency of hydrogen production; except for the electrical tang 15 which is kept bare.
In figure 5 the two pairs of anode and cathode plates, 13 and 14 respectively, are schematically depicted in a top plan view bent at right angles at the narrow joining bands 16 to enable the blades to lie parallel and in line with each other straddling the nine neutral plates 18 in between which therefore becomes the hydrogen fuel cell.
In figure 6 the hydrogen fuel cell, as assembled in figure 5 in accordance with aspects of the present invention, is shown in end elevation. The two pairs of anode and cathode blades 13 and 14 respectively are each shown linked by their respective joining bands 16. Nine neutral metal plates 18 manufactured approximately 10mm wider all round than the anode and cathode blades are positioned equidistant between the anode and cathode blades as follows: anode blade, three neutral plates, cathode blade, three neutral plates, anode blade, three neutral plates, cathode blade. It follows therefore that the two tangs 15 bent up from the anode and cathode blades comprise one positive and one negative electrical connection to a suitable battery. Rubber insulation of varying designs are laid in between the plates.
Figure 7 shows a preferred embodiment of a neutral plate 18 with three holes, common to all the plates according to aspects of the present invention, the central hole providing the means to connect them together via a plastic bolt and nut, The two other holes sited either side of the central hole double as the hydrogen route out and a means whereby hydrogen is generated via their edges. The surfaces of both sides are ground to become rough in order to achieve peaks and troughs which help to facilitate the production of hydrogen. Rubber strips 19, which are laid out in the suggested manner shown, form the partitions which separate and insulate the anode blade1 cathode blade and plates from each other.
In figure 8 a set of graphs and tables are shown which demonstrate the electrolyser combustion and emissions results of tests undertaken by the University of Birmingham. It will be seen in Birmingham University figure 4, that there is no net effect on NOx emissions, as NO decreases NO2 is increases, which is crucial when hydrogen is being introduced and shows that hydrogen is working when introduced into the fuel mix during combustion in the engine combustion chamber as expected.
The foregoing description details certain preferred embodiments of the present invention and describes the best mode contemplated. It will be appreciated, however, that changes may be made in the details of construction and the configuration of a components without departing from the spirit and scope of the disclosure.
Therefore, the description provided herein is to be considered exemplary, rather than S limiting, and the true scope of the invention is that defined by the following claims and the full range of equivalency to which each element thereof is entitled. It will be appreciated by those skilled in the art that any number of combinations of the aforementioned features and/or those shown in the appended drawings provide clear advantages over the prior art and are therefore within the scope of the invention described herein.
Claims (1)
- <claim-text>Claims 1 A hydrogen fuel cell consisting of a single anode plate divided into a pair of positive S blades, a single cathode plate divided into a pair of negative blades and neutral plates all aligned parallel with each other, all separated by insulators, connected together and fitted inside a sealed casing, one end of which has three connections for a water inlet, a hydrogen outlet and an electrical means.</claim-text> <claim-text>2 A hydrogen fuel cell according to claim 1 which comprises a single metal pressing of stainless steel bent into a U shape to create two anode blades.</claim-text> <claim-text>3 A hydrogen fuel cell according to claim 1 which comprises a single metal pressing of titanium bent into a U shape to create two anode blades.</claim-text> <claim-text>4 A hydrogen fuel cell according to claim 1 which comprises a single metal pressing of platinum bent into a U shape to create two anode blades.</claim-text> <claim-text>5 A hydrogen fuel cell according to claim 1 which comprises a single metal pressing of stainless steel bent into a U shape to create two cathode blades.</claim-text> <claim-text>6 A hydrogen fuel cell according to claim 1 which comprises a single metal pressing of titanium bent into a U shape to create two cathode blades. 2s</claim-text> <claim-text>7 A hydrogen fuel cell according to claim 1 which comprises a single metal pressing of platinum bent into a U shape to create two cathode blades.</claim-text> <claim-text>8 A hydrogen fuel cell according to claim 1 which uses tangs from the same sheet of metal as the anode and cathode plates for positive and negative electrical battery connections.</claim-text> <claim-text>9 A hydrogen fuel cell according to claim 1 in which the rubber insulation fitted to the anode and cathode plates only surrounds the edges of the plates to prevent leaching of ions.</claim-text> <claim-text>A hydrogen fuel cell according to claim 1 in which the neutral plates are separated by various designs of rubber insulators.</claim-text> <claim-text>11 A hydrogen fuel cell according to claim 1 in which the anode and cathode plates are scuffed and ground sufficiently on both sides to create rough peaks and troughs in the metal surfaces to attract the production of hydrogen to the peaks.</claim-text> <claim-text>12 A hydrogen fuel cell according to claim 1 in which the neutral plates are scuffed and ground sufficiently on both sides to attract the production and passage of hydrogen.</claim-text> <claim-text>13 A hydrogen fuel cell according to alt preceding claims in which the neutral plates and anode and cathode blades have holes in them positioned to facilitate the rapid production of hydrogen around the hole edges 14 A hydrogen fuel cell according to claim 12 in which the holes are positioned to facilitate the rapid passage of hydrogen and water.A hydrogen fuel cell according to all preceding claims which creates and releases hydrogen simultaneously due to the configuration of the design, equating to 100% efficiency.16 A hydrogen fuel cell according to all preceding claims in which the assembled fuel cell is insulated from the casing in which it will be placed by the fitting of a tight rubber sleeve.17 A hydrogen fuel cell according to all preceding claims in which water is introduced from the reservoir tank vertically.18 A hydrogen fuel cell according to all preceding claims in which hydrogen is drawn off vertically.19 A hydrogen fuel cell according to all preceding claims in which the design s configuration of the fuel cell evidences positive oxy-hydrogen (I-I HO) impact on the environmental performance of a typical single cylinder internal combustion engine.A hydrogen fuel cell according to all preceding claims in which there is no penalty on nitrogen oxide (NOx) emissions.21 A hydrogen fuel cell according to all preceding claims which generates an increased efficiency for 0.6% -1% liquid fuel replacement.22 A hydrogen fuel cell according to all preceding claims which generates up to 2% decrease in carbon dioxide (C02) levels over current hydrogen fuel cells of comparable size.23 A hydrogen fuel cell according to all preceding claims which generates up to 5% decrease in carbon monoxide (CO) levels over current hydrogen fuel cells of comparable size.24 A hydrogen fuel cell according to all preceding claims which generates a reduction in fuel consumption of 1% over current hydrogen fuel cells of comparable size.A hydrogen fuel cell according to all preceding claims which utilises hoses for water inlet and gas outlet whose apertures are twice the size in diameter than the embodiment described to reduce heat build-up and to allow for quicker exchange of water and gas.26 A hydrogen fuel cell according to all preceding claims which is sealed in a gas tight outer casing.27 A hydrogen fuel cell according to all preceding claims which generates approximately 50% less energy while producing an equal amount of hydrogen as a hydrogen fuel cell approximately twice the size.28 A hydrogen fuel cell in which is fitted between every second and third neutral plate a rubber insulation layer of the same size. ¶AMENDMENTS TO THE CLAIMS HAVE BEEN EILED AS EOLLOWS:- 1 A hydrogen fuel cell consisting of a single anode plate divided into a pair of positive blades, a single cathode plate divided into a pair of negative blades and neutral plates wih shaped twigs all aligned parallel with each other, all separated by insulators, pceferabv made of rubber, connected together and fitted inside a sealed casing, one end of which has three connections for a water inlet, a hydrogen outlet and an electrical means.2 A hydrogen fuel cell according to claim 1 which comprises a single metal pressing of stainless steel bent into a U shape to create two anode blades. (43 A hydrogen fuel cell according to claim 1 which comprises a single metal pressing of titanium r" 15 bent into a U shape to create two anode blades. 0)4 A hydrogen fuel cell according to claim 1 which comprises a single metal pressing of platinum bent into a U shape to create two anode blades.5 A hydrogen fuel cell according to claim 1 which comprises a single metal pressing of stainless steel bent into a U shape to create two cathode blades.6 A hydrogen fuel cell according to claim 1 which comprises a single metal pressing of titanium bent into a U shape to create two cathode blades.7 A hydrogen fuel cell according to claim 1 which comprises a single metal pressing of platinum bent into a U shape to create two cathode blades.8 A hydrogen fuel cell according to claim 1 which uses tangs from the same sheet of metal as the anode and cathode plates for positive and negative electrical battery connections.9 A hydrogen fuel cell according to claim 1 in which the rubber insulation fitted to the anode and cathode plates only surrounds the edges of the plates to prevent leaching of ions.A hydrogen fuel cell according to claim 1 in which the neutral plates are separated by hexagona designs of rubber insulators.11 A hydrogen fuel cell according to claim 1 in which the anode and cathode plates are scuffed and coarsely ground on both sides.12 A hydrogen fuel cell according to claim 1 in which the neutral plates are scuffed and ground sufficiently on both sides.13 A hydmgen Iue cell accorcing to all precethnq claims in which the neutral plates and anode and cathode blades have holes in them diagonaUv posUioned oppcste each other adjacent to the ribber perimeter necessary For the rarid proc.iucuon ci hydro9en around the hole tttdjs 14 A hydrogen fuel cell according to all preceding claims which creates and releases hydrogen simultaneously due to the configuration of the design, equating to 100% efficiency.A hydrogen fuel cell according to all preceding claims in which the assembled fuel cell is insulated from the casing in which it will be placed by the fitting of a tight rubber sleeve.16 A hydrogen fuel cell according to ciam 1 in which water is introduced from a reservoir tank vertically.17 A hydrogen fuel cell according to all preceding claims in which hydrogen is drawn off vertically.19 A hydrogen fuel cell according to all preceding claims which is sealed in a gas tight outer casing.20 A hydrogen fuel cell according to all preceding claims which generates approximately 50% less energy while producing an equal amount of hydrogen as a hydrogen fuel cell approximately twice the size.21 A hydrogen fuel cell according to dairn I which has fitted between every second and third neutral plate a rubber insulation layer of the same size.</claim-text>
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1115346.7A GB2494859B (en) | 2011-09-06 | 2011-09-06 | Hydrogen fuel enhancement for engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1115346.7A GB2494859B (en) | 2011-09-06 | 2011-09-06 | Hydrogen fuel enhancement for engines |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB201115346D0 GB201115346D0 (en) | 2011-10-19 |
| GB2494859A true GB2494859A (en) | 2013-03-27 |
| GB2494859B GB2494859B (en) | 2016-05-11 |
Family
ID=44882258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1115346.7A Expired - Fee Related GB2494859B (en) | 2011-09-06 | 2011-09-06 | Hydrogen fuel enhancement for engines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2494859B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000000671A1 (en) * | 1998-06-29 | 2000-01-06 | Mario De Souza | Electrode assembly |
| US20090038937A1 (en) * | 2005-04-05 | 2009-02-12 | Cropley Holdings Ltd. | Household Appliances Which Utilize an Electrolyzer and Electrolyzer that May Be Used Therein |
| WO2010052518A2 (en) * | 2007-05-22 | 2010-05-14 | Eaglepicher Energy Products Corporation | Method for assembling a stacked plate electrochemical device |
| US20100200423A1 (en) * | 2009-01-30 | 2010-08-12 | Miles Mark R | Hydrogen generator |
-
2011
- 2011-09-06 GB GB1115346.7A patent/GB2494859B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000000671A1 (en) * | 1998-06-29 | 2000-01-06 | Mario De Souza | Electrode assembly |
| US20090038937A1 (en) * | 2005-04-05 | 2009-02-12 | Cropley Holdings Ltd. | Household Appliances Which Utilize an Electrolyzer and Electrolyzer that May Be Used Therein |
| WO2010052518A2 (en) * | 2007-05-22 | 2010-05-14 | Eaglepicher Energy Products Corporation | Method for assembling a stacked plate electrochemical device |
| US20100200423A1 (en) * | 2009-01-30 | 2010-08-12 | Miles Mark R | Hydrogen generator |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201115346D0 (en) | 2011-10-19 |
| GB2494859B (en) | 2016-05-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20180921 |