GB1560120A - Hydrides of intermetallic compounds and method and apparatus for storing hydrogen - Google Patents
Hydrides of intermetallic compounds and method and apparatus for storing hydrogen Download PDFInfo
- Publication number
- GB1560120A GB1560120A GB45067/76A GB4506776A GB1560120A GB 1560120 A GB1560120 A GB 1560120A GB 45067/76 A GB45067/76 A GB 45067/76A GB 4506776 A GB4506776 A GB 4506776A GB 1560120 A GB1560120 A GB 1560120A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydrogen
- hydride
- pressure
- intermetallic compound
- reservoir
- 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.)
- Expired
Links
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims description 56
- 239000001257 hydrogen Substances 0.000 title claims description 48
- 229910052739 hydrogen Inorganic materials 0.000 title claims description 48
- 229910000765 intermetallic Inorganic materials 0.000 title claims description 40
- 150000004678 hydrides Chemical class 0.000 title claims description 37
- 238000000034 method Methods 0.000 title claims description 12
- 239000000203 mixture Substances 0.000 claims description 21
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 13
- 150000002910 rare earth metals Chemical class 0.000 claims description 13
- 150000001875 compounds Chemical class 0.000 claims description 10
- 125000004429 atom Chemical group 0.000 claims description 8
- 150000002431 hydrogen Chemical class 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 6
- 229910052684 Cerium Inorganic materials 0.000 claims description 5
- 229910001122 Mischmetal Inorganic materials 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229910052746 lanthanum Inorganic materials 0.000 claims description 5
- 229910052727 yttrium Inorganic materials 0.000 claims description 5
- 229910052776 Thorium Inorganic materials 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910052735 hafnium Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 229940125782 compound 2 Drugs 0.000 claims description 2
- 238000005485 electric heating Methods 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 10
- 239000012298 atmosphere Substances 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052805 deuterium Inorganic materials 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C11/00—Use of gas-solvents or gas-sorbents in vessels
- F17C11/005—Use of gas-solvents or gas-sorbents in vessels for hydrogen
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/0005—Reversible uptake of hydrogen by an appropriate medium, i.e. based on physical or chemical sorption phenomena or on reversible chemical reactions, e.g. for hydrogen storage purposes ; Reversible gettering of hydrogen; Reversible uptake of hydrogen by electrodes
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/0005—Reversible uptake of hydrogen by an appropriate medium, i.e. based on physical or chemical sorption phenomena or on reversible chemical reactions, e.g. for hydrogen storage purposes ; Reversible gettering of hydrogen; Reversible uptake of hydrogen by electrodes
- C01B3/001—Reversible uptake of hydrogen by an appropriate medium, i.e. based on physical or chemical sorption phenomena or on reversible chemical reactions, e.g. for hydrogen storage purposes ; Reversible gettering of hydrogen; Reversible uptake of hydrogen by electrodes characterised by the uptaking medium; Treatment thereof
- C01B3/0031—Intermetallic compounds; Metal alloys; Treatment thereof
- C01B3/0047—Intermetallic compounds; Metal alloys; Treatment thereof containing a rare earth metal; Treatment thereof
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/0005—Reversible uptake of hydrogen by an appropriate medium, i.e. based on physical or chemical sorption phenomena or on reversible chemical reactions, e.g. for hydrogen storage purposes ; Reversible gettering of hydrogen; Reversible uptake of hydrogen by electrodes
- C01B3/001—Reversible uptake of hydrogen by an appropriate medium, i.e. based on physical or chemical sorption phenomena or on reversible chemical reactions, e.g. for hydrogen storage purposes ; Reversible gettering of hydrogen; Reversible uptake of hydrogen by electrodes characterised by the uptaking medium; Treatment thereof
- C01B3/0031—Intermetallic compounds; Metal alloys; Treatment thereof
- C01B3/0047—Intermetallic compounds; Metal alloys; Treatment thereof containing a rare earth metal; Treatment thereof
- C01B3/0063—Intermetallic compounds; Metal alloys; Treatment thereof containing a rare earth metal; Treatment thereof only containing a rare earth metal and only one other metal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/383—Hydrogen absorbing alloys
-
- 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
- Y02E60/10—Energy storage using batteries
-
- 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
- Y02E60/32—Hydrogen storage
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Combustion & Propulsion (AREA)
- Geology (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydrogen, Water And Hydrids (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Description
(54) HYDRIDES OF INTERMETALLIC COMPOUNDS, AND
METHOD AND APPARATUS FOR STORING HYDROGEN
(71) We, PHILIPS ELECTRONIC AND ASSOCIATED INDUSTRIES LIMITED, of Abacus House, 33 Gutter Lane, London EC2V 8AH a British Company, do hereby declare the invention for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:
The invention relates to a method of absorbing, storing and releasing hydrogen using - intermetallic compounds containing at least one of the rare earth metals, to hydrides of these intermetallic compounds, and to apparatus for absorbing, storing and subsequently releasing hydrogen gas, comprising a reservoir containing such an intermetallic compound.
United Kingdom patent specification 1,291,976 describes intermetallic compounds having compositions defined by the general formula ADn, where A is calcium or at least one of the rare earth metals (as hereinafter defined) and optionally up to 10 atom So of the rare earth metal is replaced by Th and/or Zr and/or Hf, D is Ni and/or Co, and optionally up to 10 atom So of the Ni and/or Co is replaced by Fe and/ or Gu, and n has a value in the range from 3 to 8.5. These intermetallic compounds may be used for absorbing, storing and releasing relatively large quantities of hydrogen. Throughout this specification, the term "rare earth metals" is understood to mean the elements having atomic numbers from 57 to 71 inclusive and 39.
A known representative of this group intermetallic compounds AD/n is the so-called
LnNi5, where Ln represents a mixture of rare earth metals which contains inter alia 85% by weight of La and 10% by weight of Ce. At 21"C this material absorbs, while forming hydrides, a maximum of approximately 180 ml H2 (at a pressure of 760 mm Hg) per gram whilst the equilibrium pressure is approximately 2.5 atm. at this temperature.
The invention provides a hydride of an intermetallic compound, the compound having a composition defined by the empirical formula XQp, wherein X is at least one of the rare earth metals (as hereinbefore defined), wherein optionally up to a total of 10 atom % of the rare earth metal of X is replaced by one or more of the metals Th, Zr, Ca, Mg and Hf, wherein Q is Fe and/or Mn or is a mixture of Fe and/or Mn with Cu containing up to 10 atom % of copper and wherein 2 9p S 8.5.
A method of absorbing, storing and subsequently releasing hydrogen using an intermetallic compound having a composition defined by the abovementioned formula XQp, the method comprising the steps of subjecting the intermetallic compound to an external hydrogen pressure which exceeds the equilibrium pressure (as hereinafter defined) at the working temperature so as to form a hydride of the intermetallic compound, wherein subsequently during storage of the hydrogen the hydride of the intermetallic compound remains exposed to a hydrogen pressure exceeding the equilibrium pressure at the storage temperature, and wherein the hydrogen gas is released from the hydride of the intermetallic compound by reducing the hydrogen gas pressure to which the said hydride is subjected to a value which is less than the equilibrium pressure at the release temperature, wherein the intermetallic ompound XQp is capable of absorbing hydrogen gas at one combination of temperature and pressure and the hydride is capable of releasing the absorbed hydrogen gas at another combination of pressure and temperature.
The above-mentioned equilibrium pressure at a given temperature is the pressure at which a partly-hydrogenated intermetallic compound can be caused with the aid of a small pressure variation to absorb or release in a reversible process, considerable volumes of hydrogen gas,
Apparatus for absorbing, storing and releasing hydrogen may comprise a reservoir having an obturable opening and containing an intermetallic compound having a composition XQp as defined above, and means for heating the reservoir.
It has been found that the quantity of hydrogen which the intermetallic compounds XQp of the invention can absorb it relatively high and in general of the same order of magnitude as for LnNi5 mentioned above and that in general the equilibrium pressures are low, that is to say smaller than 1 atm. at room temperature. This simplifies handling the relevant materials, for example reservoirs for these materials may have walls which are not so thick as for materials which have, at ambient temperature, an equilibrium pressure which exceeds 1 atm. Furthermore, with the materials according to the invention, it is possible to release hydrogen at a relatively low pressure so that reducing valves can be dispensed with. The materials according to the invention can also be used advantageously in electrochemical systems which are isolated from the atmosphere, such as primary and secondary batteries, for example as electrode material.
Thanks to their capacity to absorb hydrogen selectively, the new materials may be used, just as LnNi5 5 and the above-mentioned compounds ADn, for purifying hydrogen from other gases and in separating hydrogen from hydrogen-deuterium mixtures. The intermetallic compounds of the empirical formula XQp according to the invention may be prepared by the methods which are conventional for making rare earth metal alloys with cobalt, for example by fusing the composite elements in the required proportions in a protective gas atmosphere. Advantageously on account of cost, instead of the pure rare earth metals, the commercially available so-called "mischmetals" may be used, for example the lanthanum mischmetal, yttrium mischmetal and cerium mischmetal. Preferred intermetallic compounds XQp are in particular the compounds where X= La, Y or Ce or the mischmetals which contain at least 85% by weight of La, Y or Ce and where p = 2 or 3. With these compounds a large capacity of hydrogen absorption in ml per gram of the material is obtained at a relatively low price.
After cooling, the body obtained, if desired after pulverizing, is exposed to a hydrogen atmosphere having a pressure which is maintained at a higher value than the equilibrium pressure, at the working temperature, until the material is saturated with hydrogen. The hydrogen absorbed is subsequently available for release when the hydrogen pressure above the hydride is less than the equilibrium pressure at the temperature of the hydride.
Some embodiments of the invention will now be described with reference to the following
Examples, and to the single Figure of the accompanying drawing which shows a sectional elevation of an apparatus for absorbing, storing and releasing hydrogen.
EXAMPLES
Materials 1-5 indicated by the relevant reference numerals in the first column of the
Table and having the compositions shown in the second column of the Table, are obtained by fusing the relevant metals in an argon atmosphere. The bodies obtained were cooled and thereafter were pulverized and exposed, at ambient temperature (approximately 20"C), to hydrogen at a pressure of approximately 1 atm. The third column of the Table shows the composition of the hydride obtained, the fourth column the quantity of hydrogen in ml at 760 mm Hg and 20"C which was absorbed per gram of intermetallic compound. The equilibrium pressure of the said compounds at 200C appeared to be smaller than 0.1 atm. in each case.
TABLE
No. Composition hydride ml H2/g 1 YFe2 YFe2H4.2 245
2 YMn2 YMn2H3.4 191
3 YFe3 YFe3H4.8 225
4 Y6Mn23 Y6Mn23H2l 132
5 GdFe2 GdFe2H4 175
Other compounds which form hydrides are, for example, CeFe2, TbFe2, DyFe2, HoFe2,
ErFe2, ErFe3.
The drawing shows an apparatus for absorbing, storing and releasing hydrogen, which apparatus consists of a reservoir 1 containing an intermetallic compound 2 having a composition defined in the Table, an electric heating coil 3, which surrounds the reservoir 1, a combined supply and discharge valve 4 for hydrogen and a pressure gauge 5.
Hydrogen can be withdrawn from the reservoir 1, filled with a hydride of the intermetallic compound, by heating the reservoir 1 which causes the hydrogen pressure over the hydride to rise, and/or by pumping the hydrogen off through valve 4. When all the hydrogen has been removed from the reservoir 1, the hydride can be prepared by passing hydrogen into the reservoir 1 through the valve 4 until, after full saturation at ambient temperature, the pressure in the reservoir starts rising above the equilibrium pressure.
WHAT WE CLAIM IS:
1. A hydride of an intermetallic compound, the compound having a composition defined by the empirical formula XQp, wherein X is at least one of the rare earth metals (as hereinbefore defined), wherein optionally up to a total of 10 atom % of the rare earth metal
of X is replaced by one or more of the metals Th, Zr, Ca Mg and Hf, wherein Q is Fe and/or
Mn or is a mixture of Fe and/or Mn with Cu containing up to 10 atom % of copper, and wherein 2spas8.5.
2. A hydride as claimed in Claim 1, wherein X is a mischmetal containing at least 85% by weight of La, Y or Ce, andp has a value of 2 or 3.
3. A method of absorbing, storing and subsequently releasing hydrogen using an intermetallic compound having a composition defined by the empirical formula XQp as specified in Claim 1, the method comprising the steps of subjecting the intermetallic compound to an external hydrogen pressure which exceeds the equilibrium pressure (as hereinbefore defined) at the working temperature so as to form a hydride of the intermetallic compound, wherein subsequently during storage of the hydrogen the hydride of the intermetallic compound remains exposed to a hydrogen pressure exceeding the equilibrium pressure at the storage temperature, and wherein the hydrogen gas is released from the hydride of the intermetallic compound by reducing the hydrogen gas pressure to which the said hydride is subjected to a value which is less than the equilibrium pressure at the release temperature, wherein the intermetallic compound XQp is capable of absorbing hydrogen gas at one combination of temperature and pressure and the hydride is capable of releasing the absorbed hydrogen gas at another combination of pressure and temperature.
4. Apparatus for absorbing, storing and releasing hydrogen, comprising a reservoir having an obturable opening and containing an intermetallic compound having a composition XQp as defined in Claim 1, and means for heating the reservoir.
5. Apparatus for absorbing, storing and releasing hydrogen, substantially as hereinbefore described with reference to any of Examples 1 to 5 and to the accompanying drawing.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (5)
1 YFe2 YFe2H4.2 245
2 YMn2 YMn2H3.4 191
3 YFe3 YFe3H4.8 225
4 Y6Mn23 Y6Mn23H2l 132
5. Apparatus for absorbing, storing and releasing hydrogen, substantially as hereinbefore described with reference to any of Examples 1 to 5 and to the accompanying drawing.
5 GdFe2 GdFe2H4 175
Other compounds which form hydrides are, for example, CeFe2, TbFe2, DyFe2, HoFe2,
ErFe2, ErFe3.
The drawing shows an apparatus for absorbing, storing and releasing hydrogen, which apparatus consists of a reservoir 1 containing an intermetallic compound 2 having a composition defined in the Table, an electric heating coil 3, which surrounds the reservoir 1, a combined supply and discharge valve 4 for hydrogen and a pressure gauge 5.
Hydrogen can be withdrawn from the reservoir 1, filled with a hydride of the intermetallic compound, by heating the reservoir 1 which causes the hydrogen pressure over the hydride to rise, and/or by pumping the hydrogen off through valve 4. When all the hydrogen has been removed from the reservoir 1, the hydride can be prepared by passing hydrogen into the reservoir 1 through the valve 4 until, after full saturation at ambient temperature, the pressure in the reservoir starts rising above the equilibrium pressure.
WHAT WE CLAIM IS:
1. A hydride of an intermetallic compound, the compound having a composition defined by the empirical formula XQp, wherein X is at least one of the rare earth metals (as hereinbefore defined), wherein optionally up to a total of 10 atom % of the rare earth metal
of X is replaced by one or more of the metals Th, Zr, Ca Mg and Hf, wherein Q is Fe and/or
Mn or is a mixture of Fe and/or Mn with Cu containing up to 10 atom % of copper, and wherein 2spas8.5.
2. A hydride as claimed in Claim 1, wherein X is a mischmetal containing at least 85% by weight of La, Y or Ce, andp has a value of 2 or 3.
3. A method of absorbing, storing and subsequently releasing hydrogen using an intermetallic compound having a composition defined by the empirical formula XQp as specified in Claim 1, the method comprising the steps of subjecting the intermetallic compound to an external hydrogen pressure which exceeds the equilibrium pressure (as hereinbefore defined) at the working temperature so as to form a hydride of the intermetallic compound, wherein subsequently during storage of the hydrogen the hydride of the intermetallic compound remains exposed to a hydrogen pressure exceeding the equilibrium pressure at the storage temperature, and wherein the hydrogen gas is released from the hydride of the intermetallic compound by reducing the hydrogen gas pressure to which the said hydride is subjected to a value which is less than the equilibrium pressure at the release temperature, wherein the intermetallic compound XQp is capable of absorbing hydrogen gas at one combination of temperature and pressure and the hydride is capable of releasing the absorbed hydrogen gas at another combination of pressure and temperature.
4. Apparatus for absorbing, storing and releasing hydrogen, comprising a reservoir having an obturable opening and containing an intermetallic compound having a composition XQp as defined in Claim 1, and means for heating the reservoir.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NLAANVRAGE7512836,A NL170401C (en) | 1975-11-03 | 1975-11-03 | METHOD FOR THE PREPARATION OF HYDRIDES OF INTERMETALLIC COMPOUNDS AND METHOD FOR STORING, STORING AND DISPOSING OF HYDROGEN. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1560120A true GB1560120A (en) | 1980-01-30 |
Family
ID=19824774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB45067/76A Expired GB1560120A (en) | 1975-11-03 | 1976-10-29 | Hydrides of intermetallic compounds and method and apparatus for storing hydrogen |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5258100A (en) |
| DE (1) | DE2647755A1 (en) |
| FR (1) | FR2329587A1 (en) |
| GB (1) | GB1560120A (en) |
| NL (1) | NL170401C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2129534A (en) * | 1982-04-28 | 1984-05-16 | Energy Conversion Devices Inc | Hydrogen storage materials and manufacture thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6906305A (en) * | 1969-01-24 | 1970-10-27 | ||
| SU509528A1 (en) * | 1974-05-20 | 1976-04-05 | Московский Ордена Ленина И Орденатрудового Красного Знамени Государственныйуниверситет Имени М.В.Ломоносова | Intermetallic hydrides |
| JPS51108687A (en) * | 1975-03-20 | 1976-09-27 | Mitsubishi Heavy Ind Ltd | SUISOKY UZOYO GOKIN |
| JPS51115295A (en) * | 1975-04-02 | 1976-10-09 | Toshiba Corp | Hydrogen-release-materials |
-
1975
- 1975-11-03 NL NLAANVRAGE7512836,A patent/NL170401C/en not_active IP Right Cessation
-
1976
- 1976-10-22 DE DE19762647755 patent/DE2647755A1/en active Granted
- 1976-10-29 GB GB45067/76A patent/GB1560120A/en not_active Expired
- 1976-11-01 JP JP51130584A patent/JPS5258100A/en active Pending
- 1976-11-03 FR FR7633124A patent/FR2329587A1/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2129534A (en) * | 1982-04-28 | 1984-05-16 | Energy Conversion Devices Inc | Hydrogen storage materials and manufacture thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| NL170401B (en) | 1982-06-01 |
| JPS5258100A (en) | 1977-05-13 |
| DE2647755C2 (en) | 1987-06-19 |
| FR2329587A1 (en) | 1977-05-27 |
| NL170401C (en) | 1982-11-01 |
| DE2647755A1 (en) | 1977-05-05 |
| NL7512836A (en) | 1977-05-05 |
| FR2329587B1 (en) | 1981-06-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19961028 |