US3615835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Generation of dc voltage
Assignee: Ovonic Battery Co Inc
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Filing: 1969-01-16
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Granted: 1971-10-26
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Expires: 1989-01-16
Abstract
Abstract A room temperature DC voltage generating device comprising a solid body of lithium metal carrying on and in direct contact with at least a part of its surface a solid layer of a composition consisting essentially of at least one oxygencontaining lithium compound such as lithium nitrate or lithium sulfate, or lithium chloride or lithium bromide, said solid layer being effective to prevent direct contact of a water-moisturecontaining gaseous environment with said body of lithium metal in the area of said solid layer, an electrical circuit including electrical contacts respectively connecting (i) said body of solid lithium metal, and (ii) said solid layer, and means providing a water-moisture-containing gaseous environment whereby to moisten said layer, generation of DC voltage occurring on contact of said moisture with said layer.
Inventors
- 👤 Stanford R Ovshinsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:23
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/18; H01M12/00; H01M12/04; H01M12/06
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
12 words
The method of claim 1, in which the gaseous environment is air.
Claim 2
Dependent Claim
20 words
The method of claim 1, in which the gaseous environment comprises a gas in which free nitrogen is essentially absent.
Claim 3
Dependent Claim
22 words
The method of claim 1, in which the DC voltage generated is in the range of about 1 to about 3 volts.
Claim 4
Dependent Claim
28 words
The method of claim 1, in which the generation of the DC voltage is effected at a temperature in the range of about 20* to about 60* C.
Claim 5
Dependent Claim
22 words
The method of claim 1, in which the generated voltage is controlled by controlling the water moisture content of the gaseous environment.
Claim 6
Dependent Claim
158 words
A DC voltage generating device which generates voltage of a temperature in the range of about 20* to about 60* C. comprising: a. a solid body of lithium metal carrying on, and in direct contact with, at least a part of its surface, a solid layer of a composition consisting of at least one oxygen-containing lithium compound selected from the group consisting of lithium sulfate, lithium nitrate, lithium acetate, lithium phosphate, lithium silicate, lithium borate, and chlorine-, bromine- and iodine-containing lithium compounds selected from the group consisting of lithium chloride, lithium bromide and lithium iodide, said solid layer being effective to prevent direct contact of a water-moisture containing gaseous environment with said solid body of lithium metal in the area of said solid layer, b. an electrical circuit including electrical contacts respectively connecting (i) said body of solid lithium metal, and (ii) said solid layer, and c. means providing a moisture-containing gaseous environment whereby to moisten said layer.
Claim 7
Dependent Claim
37 words
A voltage-generating device according to claim 7, which is effective to generate a substantial DC voltage at a temperature in the range of about 20* to about 60* C., and in which the gaseous environment is air.
Claim 8
Dependent Claim
48 words
A voltage-generating device according to claim 8, in which the DC voltage is in the range of volts for a water-moisture content in said gaseous environment in the range of 90 to 95% R.H., and in the range of a volt for water moisture contents below 30% R.H.
Claim 9
Dependent Claim
75 words
A voltage-generating device according to claim 7, in which said water-moisture-containing gaseous environment to which said solid layer of said composition is exposed has its water moisture content varied in accordance with the vacuum condition thereof, and wherein said body of lithium metal and said moistened layer of said composition generate a substantial DC voltage in said electrical circuit in accordance with the water moisture content and hence the vacuum condition of the gaseous environment.
Claim 10
Dependent Claim
77 words
A voltage-generating device according to claim 7, in which the solid lithium metal is in the form of a sheet or disc and is disposed within and in electrical contact with a cup- or dish-shaped member of an electrically conducting material, thE solid composition layer being disposed on an exposed surface of said solid lithium metal sheet or disc, the electrical contact to said solid lithium metal sheet or disc being through said cup- or dish-shaped member.
Claim 11
Dependent Claim
159 words
A room temperature voltage-generating device comprising a solid body of lithium metal, a solid layer of a composition consisting essentially of at least one chlorine-, bromine- or iodine-containing lithium compound in intimate contact with at least one surface of the body of lithium metal, means including said solid layer of said composition for preventing contact of a water moisture containing gaseous environment with the body of lithium metal, at least a portion of the outer surface of said solid layer of said composition being exposed to and in contact with a water moisture containing gaseous environment to be moistened thereby, and an electrical circuit including electrical connections respectively contacting said body of lithium metal and the outer surface of said solid layer of said composition which is exposed to and moistened by the water moisture containing gaseous environment, said body of lithium metal and said moistened layer of said composition generating a substantial DC voltage in said electrical circuit.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |