US4310601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal hydride storage device and method for its manufacture
Assignee: Daimler Benz AG
•
Filing: 1979-12-10
•
Granted: 1982-01-12
•
Expires: 1999-12-10
Abstract
Abstract A metal hydride storage device with a hydrogenatable storage metal powder and with an encapsulation of non-hydrogenatable material receiving the storage metal powder; the storage metal powder with a substantially uniformly distributed addition of about 2 to 10% by weight of powder-shaped non-hydrogenatable material forming a matrix powder, is contained in the encapsulation as form-rigid compressed or sintered body.
Inventors
- 👤 Otto Bernauer
- 👤 Horst Baier
- 👤 Helmut Buchner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:31
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/0005; C01B3/001; C01B3/0084; C01B3/0078; F; F17; F17C; F17C11/00; F17C11/005; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/32; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12153; Y10T428/1216
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
81 words
A metal hydride storage device with a hydrogenatable storage metal powder and with an encapsulation means of non-hydrogenatable material receiving the storage metal powder, characterized in that the storage metal powder with a substantially uniformly distributed admixture of about 2 to about 10% by weight of a non-hydrogenatable material in powder form forming a matrix powder, in the form of a form-rigid body, is contained in the encapsulation means, whereby increased resistance to disintegration of the storage metal powder is achieved.
Claim 2
Dependent Claim
81 words
A metal hydride storage device with a hydrogenatable storage metal powder and with an encapsulation means of non-hydrogenatable material receiving the storage metal powder, characterized in that the storage metal powder with a substantially uniformly distributed admixture of about 2 to about 10% by weight of a non-hydrogenatable material in powder form forming a matrix powder, in the form of a form-rigid body, is contained in the encapsulation means, whereby increased resistance to disintegration of the storage metal powder is achieved.
Claim 3
Dependent Claim
31 words
A metal hydride storage device according to claim 1, characterized in that the form-rigid body is a compressed body of said storage metal powder and said non-hydrogenatable material in powder form.
Claim 4
Dependent Claim
31 words
A metal hydride storage device according to claim 1, characterized in that the form-rigid body is a sintered body of said storage metal powder and said non-hydrogenatable material in powder form.
Claim 5
Dependent Claim
57 words
A metal hydride storage device according to claim 1, 2, or 3, with a connection for the supply or removal of hydrogen, characterized in that a dust filter means having a pore size smaller than the grain size of the storage metal powder or non-hydrogenatable material in powder form is arranged within the area of the connection.
Claim 6
Dependent Claim
22 words
A metal hydride storage device according to claim 1, 2 or 3, characterized in that the encapsulation means consists of a metal.
Claim 7
Dependent Claim
25 words
A metal hydride storage device according to claim 5, characterized in that the metal is selected from the group consisting of steel, copper and aluminum.
Claim 8
Dependent Claim
25 words
A metal hydride storage device according to claim 1, 2 or 3, characterized in that the encapsulation means consists of a fiber-reinforced synthetic plastic material.
Claim 9
Dependent Claim
32 words
A metal hydride storage device according to claim 1, 2 or 3, characterized in that the encapsulation means is sintered together with the sintered body of storage metal powder and matrix metal.
Claim 10
Dependent Claim
38 words
A metal hydride storage device according to claim 1, 2, or 3, characterized in that at least one form-rigid body of storage metal powder and non-hydrogenatable material in powder form is cast about with aluminum as encapsulation means.
Claim 11
Independent Claim
128 words
A method for manufacturing a metal hydride storage device which contains a hydrogenatable storage metal powder in an encapsulation of non-hydrogenatable material, comprising the steps of intimately mixing storage metal powder of a grain size of about 8 to about 20 μm with about 2 to 10% by weight of a non-hydrogenatable matrix metal powder of at most approximately the same grain size, compressing the mixture into a form-rigid body, whereby the granules of the matrix metal powder are plastically deformed between the granules of the storage metal powder and together form a load-bearing cohesive support structure for the granules of the storage metal powder, and encapsulating the form-rigid body in said encapsulation of non-hydrogenatable material, whereby increased resistance to disintegration of the storage metal powder is achieved.
Claim 12
Independent Claim
128 words
A method for manufacturing a metal hydride storage device which contains a hydrogenatable storage metal powder in an encapsulation of non-hydrogenatable material, comprising the steps of intimately mixing storage metal powder of a grain size of about 8 to about 20 μm with about 2 to 10% by weight of a non-hydrogenatable matrix metal powder of at most approximately the same grain size, compressing the mixture into a form-rigid body, whereby the granules of the matrix metal powder are plastically deformed between the granules of the storage metal powder and together form a load-bearing cohesive support structure for the granules of the storage metal powder, and encapsulating the form-rigid body in said encapsulation of non-hydrogenatable material, whereby increased resistance to disintegration of the storage metal powder is achieved.
Claim 13
Dependent Claim
26 words
A method according to claim 10, characterized in that about 5% by weight of non-hydrogenatable matrix metal powder are mixed together with the storage metal powder.
Claim 14
Dependent Claim
34 words
A method according to claim 10, characterized in that during the manufacture, pressure and heat of such a temperature are used at which exclusively the granules of the matrix metal powder will become soft.
Claim 15
Dependent Claim
23 words
A method according to claim 12, characterized in that the pressure and heat is used after the step of compressing the powder mixture.
Claim 16
Dependent Claim
23 words
A method according to claim 12, characterized in that the pressure and heat is used during the step of compressing the powder mixture.
Claim 17
Dependent Claim
22 words
A method according to claim 10, 11 or 12, characterized in that one of aluminum and copper is used as matrix metal.
Claim 18
Dependent Claim
26 words
A method according to claim 15, characterized in that the form-rigid body is compressed in an encapsulation of the same material as the matrix metal powder.
Claim 19
Dependent Claim
26 words
A method according to claim 15, characterized in that the form-rigid body is sintered in an encapsulation of the same material as the matrix metal powder.
Claim 20
Dependent Claim
27 words
A method according to claim 15, characterized in that the form-rigid body is cast about with an encapsulation of the same material as the matrix metal powder.
Claim 21
Dependent Claim
29 words
A method according to claim 10, 11 or 12, characterized in that the form-rigid body is compressed in an encapsulation of the same material as the matrix metal powder.
Claim 22
Dependent Claim
29 words
A method according to claim 10, 11 or 12, characterized in that the form-rigid body is sintered in an encapsulation of the same material as the matrix metal powder.
Claim 23
Dependent Claim
30 words
A method according to claim 10, 11 or 12, characterized in that the form-rigid body is cast about with an encapsulation of the same material as the matrix metal powder.
Claim 24
Dependent Claim
33 words
A metal hydride storage device according to claim 1, 2, or 3, characterized in that said storage metal powder is admixed with about 5% by weight of said non-hydrogenatable material in powder form.
Claim 25
Dependent Claim
63 words
A metal hydride storage device according to claim 2, characterized in that said non-hydrogenatable material in powder form is softer than said storage metal powder, whereby in said compressed body the granules of said non-hydrogenatable material in powder form are plastically deformed to occupy the hollow spaces between the storage metal powder and form a load-bearing support matrix for the storage metal powder.
Claim 26
Dependent Claim
28 words
A metal hydride storage device according to claim 7, characterized in that said fiber-reinforced plastic has metal particles embedded therein to increase the heat conductivity of said plastic.
Claim 27
Dependent Claim
22 words
A metal hydride storage device according to claim 9, characterized in that a plurality of form-rigid bodies are cast about with aluminum.
Claim 28
Dependent Claim
31 words
A metal hydride storage device according to claim 1, 2, or 3, characterized in that the material of the encapsulation means is the same as the non-hydrogenatable material in powder form.
Claim 29
Dependent Claim
23 words
A method according to claim 10, 11, or 12, characterized in that the matrix metal powder is softer than the storage metal powder.
Claim 30
Dependent Claim
23 words
A method according to claim 10, 11, or 12, characterized in that the rigid-form body is charged with hydrogen prior to being encapsulated.
References Cited (Backward Citations)
US4134491A
Cited
US4134490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-01-11 | 1985-07-13 | 1986-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-11 | 1989-07-13 | 1990-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-11 | 1993-07-13 | 1994-01-12 | $7700.00 | Window Closed / Lapsed |