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US4883726A
Expired / Lapsed
US
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Multi-cell battery
Assignee: Individual
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Filing: 1987-05-22
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Granted: 1989-11-28
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Expires: 2007-05-22
Abstract
Abstract The invention relates to a multi-cell battery of electro-chemical cells of the type which is likely to be severely damaged and which is apt to release a substantial quantity of heat when short-circuited. According to the invention, the multi-cell unit is provided with a certain filler in the space between the constituent electrochemical cells, which is either a solid with a melting point in a predetermined range of temperature, or a liquid. The filler ought to be electrically non-conducting, and its quantity ought to have an adequate heat capacity and it ought also to be capable to transfer heat to adjacent cells.
Inventors
- 👤 Emanuel Peled
- 👤 Mordechai Brand
- 👤 Esther Elster
- 👤 Josef Kimel
- 👤 Ronen Cohen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:13
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/60; H01M10/65; H01M10/659; H01M10/61; H01M10/613; H01M10/64; H01M10/643; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
82 words
A multi-cell electric battery comprising a housing, a plurality of electrochemical cells of cylindrical cross section positioned in the housing, said cells having a lithium or calcium anode, and an electrically insulating substance provided in the space between the cells, the electrically insulating substance being a solid having a melting point in the range between about 40° C. and about 150° C. and being capable of taking up heat and transferring heat from one cell to the others, in an unimpaired manner.
Claim 2
Dependent Claim
82 words
A multi-cell electric battery comprising a housing, a plurality of electrochemical cells of cylindrical cross section positioned in the housing, said cells having a lithium or calcium anode, and an electrically insulating substance provided in the space between the cells, the electrically insulating substance being a solid having a melting point in the range between about 40° C. and about 150° C. and being capable of taking up heat and transferring heat from one cell to the others, in an unimpaired manner.
Claim 3
Dependent Claim
18 words
A cell according to claim 1, wherein the electrically insulating substance substantially fills the space between the cells.
Claim 4
Dependent Claim
24 words
A battery according to claim 1, wherein the electrically insulating substance has a high heat capacity and a low viscosity in the liquid state.
Claim 5
Dependent Claim
61 words
A multi-cell electric battery comprising a housing, a plurality of electrochemical cells of cylindrical cross section positioned in the housing, said cells having a lithium or calcium anode, and an electrically insulating substance provided in the space between the cells, the electrically insulating substance being a natural or synthetic wax, a paraffin, polyethylene, tar or a mixture of any of these.
Claim 6
Dependent Claim
61 words
A multi-cell electric battery comprising a housing, a plurality of electrochemical cells of cylindrical cross section positioned in the housing, said cells having a lithium or calcium anode, and an electrically insulating substance provided in the space between the cells, the electrically insulating substance being a natural or synthetic wax, a paraffin, polyethylene, tar or a mixture of any of these.
Claim 7
Dependent Claim
14 words
A battery according to claim 1, wherein the cells are high-energy wound electrode cells.
Claim 8
Dependent Claim
20 words
A battery according to claim 1, wherein the cells have a a thionyl chloride, sulfuryl chloride, or sulfur dioxide electrolyte.
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) | 1992-11-27 | 1993-05-29 | 1993-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-27 | 1997-05-29 | 1997-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-27 | 2001-05-29 | 2001-11-28 | $7700.00 | Window Closed / Lapsed |