US4195989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogen storage material
Assignee: Panasonic Holdings Corp
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Filing: 1978-10-25
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Granted: 1980-04-01
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Expires: 1998-10-25
Abstract
Abstract The disclosure relates to a hydrogen storage material composed of a Ti-Mn-M alloy in which M represents at least one metal selected from the group consisting of vanadium, chromium, iron, cobalt, nickel, copper and molybdenum, and which defines an alloy phase of a Laves phase having a hexagonal crystal structure of MgZn2(C14) type and crystal lattice parameters a=4.86 DIFFERENCE 4.90A and C=7.95 DIFFERENCE 8.02A. The hydrogen storage material is economical and suited to practical purposes, since it readily absorbs a large amount of hydrogen at room temperature and reversibly discharges a large amount of hydrogen with safety through variations of ambient hydrogen pressure, temperature conditions or electro-chemical conditions.
Inventors
- 👤 Takaharu Gamo
- 👤 Yoshio Moriwaki
- 👤 Toshio Yamashita
- 👤 Masataro Fukuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:06
CPC Classifications
C; C22; C22C; C22C22/00; C01; C01B; C01B3/00; C01B3/0005; C01B3/001; C01B3/0018; C01B3/0031; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/32; Y10; Y10S; Y10S420/00; Y10S420/90
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
92 words
A metallic material for storing of hydrogen which comprises a substance able to store hydrogen and composed of a Ti-Mn-M alloy defining an alloy phase which is substantially a Laves phase constituted by an intermetallic compound, which has a hexagonal crystal structure of the MgZn 2 (C 14 ) type, and crystal structure parameters a and c which have values in the ranges: a=4.86˜4.90 A c=7.95˜8.02 A said M of said Ti-Mn-M alloy representing at least one metal selected from the group consisting of vanadium, chromium, iron, cobalt, nickel, copper and molybdenum.
Claim 2
Dependent Claim
92 words
A metallic material for storing of hydrogen which comprises a substance able to store hydrogen and composed of a Ti-Mn-M alloy defining an alloy phase which is substantially a Laves phase constituted by an intermetallic compound, which has a hexagonal crystal structure of the MgZn 2 (C 14 ) type, and crystal structure parameters a and c which have values in the ranges: a=4.86˜4.90 A c=7.95˜8.02 A said M of said Ti-Mn-M alloy representing at least one metal selected from the group consisting of vanadium, chromium, iron, cobalt, nickel, copper and molybdenum.
Claim 3
Dependent Claim
17 words
A metallic material as claimed in claim 1, wherein said M of said Ti-Mn-M alloy represents iron.
Claim 4
Dependent Claim
33 words
A metallic material as claimed in claim 1, wherein said Ti-Mn-M alloy is prepared through synthesization by homogeneously melting at least ferrotitanium and manganese as raw material in an atmosphere of inert gas.
Claim 5
Dependent Claim
98 words
A hydride formed by causing hydrogen to be absorbed into a metallic material which comprises a substance able to store hydrogen and composed of a Ti-Mn-M alloy defining an alloy phase which is substantially a Laves phase constituted by an intermetallic compound, which has a hexagonal crystal structure of the MgZn 2 (C 14 ) type, and crystal structure parameters a and c which have values in the ranges: a=4.86˜4.90 A c=7.95˜8.02 A said M of said Ti-Mn-M alloy representing at least one metal selected from the group consisting of vanadium, chromium, iron, cobalt, nickel, copper and molybdenum.
Claim 6
Dependent Claim
98 words
A hydride formed by causing hydrogen to be absorbed into a metallic material which comprises a substance able to store hydrogen and composed of a Ti-Mn-M alloy defining an alloy phase which is substantially a Laves phase constituted by an intermetallic compound, which has a hexagonal crystal structure of the MgZn 2 (C 14 ) type, and crystal structure parameters a and c which have values in the ranges: a=4.86˜4.90 A c=7.95˜8.02 A said M of said Ti-Mn-M alloy representing at least one metal selected from the group consisting of vanadium, chromium, iron, cobalt, nickel, copper and molybdenum.
Claim 7
Independent Claim
116 words
A method of storing, transporting and preserving hydrogen comprising the steps of preparing a metallic material able to store hydrogen and composed of a Ti-Mn and M alloy defining an alloy phase which is substantially a Laves phase constituted by an intermetallic compound, which has a hexagonal crystal structure of the MgZn 2 (C 14 ) type, and crystal structure parameters a and c which have values in the ranges: a=4.86˜4.90 A c=7.95˜8.02 A, and forming said Ti-Mn and M alloy into a hydride by causing hydrogen to be absorbed thereinto, said M of said Ti-Mn-M alloy representing at least one metal selected from the group consisting of vanadium, chromium, iron, cobalt, nickel, copper and molybdenum.
Claim 8
Independent Claim
116 words
A method of storing, transporting and preserving hydrogen comprising the steps of preparing a metallic material able to store hydrogen and composed of a Ti-Mn and M alloy defining an alloy phase which is substantially a Laves phase constituted by an intermetallic compound, which has a hexagonal crystal structure of the MgZn 2 (C 14 ) type, and crystal structure parameters a and c which have values in the ranges: a=4.86˜4.90 A c=7.95˜8.02 A, and forming said Ti-Mn and M alloy into a hydride by causing hydrogen to be absorbed thereinto, said M of said Ti-Mn-M alloy representing at least one metal selected from the group consisting of vanadium, chromium, iron, cobalt, nickel, copper and molybdenum.
Claim 9
Dependent Claim
16 words
A method as claimed in claim 5, wherein said M of said Ti-Mn-M alloy represents iron.
Claim 10
Dependent Claim
32 words
A method as claimed in claim 6, wherein said Ti-Mn-M alloy is prepared through synthesization by homogeneously melting at least ferrotitanium and manganese as raw materials in an atmosphere of inert gas.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-01 | 1983-10-01 | 1984-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-01 | 1987-10-01 | 1988-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-01 | 1991-10-01 | 1992-04-01 | $7700.00 | Window Closed / Lapsed |