US4446213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrochemical storage cell
Assignee: BBC Brown Boveri AG Germany
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Filing: 1982-05-03
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Granted: 1984-05-01
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Expires: 2002-05-03
Abstract
Abstract Electrochemical storage cell or battery with at least one anode space for receiving the anolyte and one cathode space for receiving the catholyte which spaces are separated from each other by an alkali ion-conducting solid electrolyte and are bounded at least in some places by a metallic housing. A safety space which is subdivided into at least two safety zones, adjoins at least in some places, the solid electrolyte.
Inventors
- 👤 Gunther Steinleitner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:44
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/36; H01M10/39; H01M10/3909; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
177 words
An electrochemical storage cell or battery of alkali metal and chalcogen comprising at least one anode space receiving the alkali metal anolyte and one cathode space receiving the chalcogen catholyte, an alkali ion-conducting solid electrolyte separating the said reactant spaces from each other, said cell bounded at least in some places by a metallic housing, and a safety space subdivided into at least two safety zones adjoining said solid electrolyte, wherein a first safety zone of said two safety zones is arranged in the anode space parallel to the lateral boundary surfaces of the solid electrolyte and bounded by a support element shaped as a tube open at its bottom also arranged in the anode space, and a second safety zone of said two safety zones is arranged in the cathode space parallel to the closed end of the solid electrolyte and bounded by a casing shaped as a cap also arranged in the cathode space and that the distance between the solid electrolyte, the support element and the casing is at most 1 to 2 mm.
Claim 2
Dependent Claim
177 words
An electrochemical storage cell or battery of alkali metal and chalcogen comprising at least one anode space receiving the alkali metal anolyte and one cathode space receiving the chalcogen catholyte, an alkali ion-conducting solid electrolyte separating the said reactant spaces from each other, said cell bounded at least in some places by a metallic housing, and a safety space subdivided into at least two safety zones adjoining said solid electrolyte, wherein a first safety zone of said two safety zones is arranged in the anode space parallel to the lateral boundary surfaces of the solid electrolyte and bounded by a support element shaped as a tube open at its bottom also arranged in the anode space, and a second safety zone of said two safety zones is arranged in the cathode space parallel to the closed end of the solid electrolyte and bounded by a casing shaped as a cap also arranged in the cathode space and that the distance between the solid electrolyte, the support element and the casing is at most 1 to 2 mm.
Claim 3
Dependent Claim
19 words
Electrochemical storage cell according to claim 1, wherein the anode space is in the interior of the solid electrolyte.
Claim 4
Dependent Claim
20 words
Electrochemical storage cell according to claim 1, wherein the anode space is between the solid electrolyte and the metallic housing.
Claim 5
Dependent Claim
19 words
Electrochemical storage cell according to claim 1 or claim 2 or claim 3, wherein the solid electrolyte is cup-shaped.
Claim 6
Dependent Claim
28 words
Electrochemical storage cell according to claim 1 or claim 2 or claim 3, wherein the solid electrolyte is cup-shaped and has a round dome at its closed end.
Claim 7
Dependent Claim
29 words
Electrochemical storage cell according to claim 1 or claim 2 or claim 3, wherein the solid electrolyte is cup-shaped and closed at its closed end by a round disc.
Claim 8
Dependent Claim
24 words
Electrochemical storage cell according to claim 1 or claim 2 or claim 3, wherein the two safety zones of the safety space partially overlap.
Claim 9
Dependent Claim
31 words
Electrochemical storage cell according to claim 1 or claim 2 or claim 3, wherein the solid electrolyte is cup-shaped, and wherein the two safety zones of the safety space partially overlap.
Claim 10
Dependent Claim
30 words
Electrochemical storage cell according to claim 1 or claim 2 or claim 3, wherein the space between the solid electrolyte and the support element is filled with a capillary-active material.
Claim 11
Dependent Claim
48 words
Electrochemical storage cell according to claim 1 or claim 2 or claim 3, wherein the solid electrolyte is cup-shaped, wherein the two safety zones of the safety space partially overlap, and wherein the space between the solid electrolyte and the support element is filled with a capillary-active material.
Claim 12
Dependent Claim
30 words
Electrochemical storage cell according to claim 1 or claim 2 or claim 3, wherein the support element defining the first safety zone conforms to the geometry of the solid electrolyte.
Claim 13
Dependent Claim
45 words
Electrochemical storage cell according to claim 1 or claim 2 or claim 3, wherein the solid electrolyte is cup-shaped and has a round dome at its end, and wherein the support element defining the first safety zone conforms to the geometry of the solid electrolyte.
Claim 14
Dependent Claim
26 words
Electrochemical storage cell according to claim 1 or claim 2 or claim 3, wherein the casing conforms to the geometry of the closed solid electrolyte end.
Claim 15
Dependent Claim
41 words
Electrochemical storage cell according to claim 1 or claim 2 or claim 3, wherein the solid electrolyte is cup-shaped and has a round dome at its end, and wherein the casing conforms to the geometry of the closed solid electrolyte end.
Claim 16
Dependent Claim
24 words
Electrochemical storage cell according to claim 1, wherein an inert material is placed between the casing and the closed end of the solid electrolyte.
Claim 17
Dependent Claim
27 words
Electrochemical storage cell according to claim 1, wherein the support element is made of material selected from the group consisting of aluminum, an aluminum alloy and steel.
Claim 18
Dependent Claim
31 words
Electrochemical storage cell according to claim 1, wherein the casing is made of a material selected from the group consisting of aluminum, an aluminum alloy, alloy steel, graphite, ceramic and molybdenum.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-01 | 1987-10-31 | 1988-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-01 | 1991-10-31 | 1992-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-01 | 1995-10-31 | 1996-05-01 | $7700.00 | Window Closed / Lapsed |