US5478667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat dissipating current collector for a battery
Assignee: Valence Technology Inc
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Filing: 1992-10-29
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Granted: 1995-12-26
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Expires: 2012-10-29
Abstract
Abstract A current collector in electrical contact with an anode of a battery is extended beyond the anode to serve as a heat sink and presents a substantial surface area through which heat is dissipated from inside the battery to the atmosphere. When multiple battery cells are stacked, the current collectors extend to form fins across which air flows to efficiently dissipate heat.
Inventors
- 👤 Dale R. Shackle
- 👤 Jerry L. Morris
- 👤 Michael E. McAleavey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:52
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/70; H01M10/00; H01M10/60; H01M10/61; H01M10/613; H01M10/62; H01M10/625; H01M10/64; H01M10/647; H01M10/65; H01M10/655; H01M10/6554; H01M10/656; H01M10/6561; H01M10/6563; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
165 words
A battery comprising: a battery cell including an electrode a second potential electrode in electrical contact with a sheet shaped second potential electrode current collector and an electrolyte in contact with the electrode and the second potential electrode; and an extended portion of the second potential electrode current collector extending beyond the second potential electrode for dissipating heat from inside the battery to the atmosphere, wherein the electrode is a laminate including electrode material in electrical contact with a sheet shaped electrode current collector and wherein the second potential electrode is in electrical contact with the second potential electrode current collector on two sides of the second potential electrode current collector, the laminate is folded around the second potential electrode and the second potential electrode current collector such that the electrolyte is in contact with the second potential electrode on two sides of the second potential electrode current collector, the extended portion of the second potential electrode current collector extending from between the folded laminate.
Claim 2
Dependent Claim
165 words
A battery comprising: a battery cell including an electrode a second potential electrode in electrical contact with a sheet shaped second potential electrode current collector and an electrolyte in contact with the electrode and the second potential electrode; and an extended portion of the second potential electrode current collector extending beyond the second potential electrode for dissipating heat from inside the battery to the atmosphere, wherein the electrode is a laminate including electrode material in electrical contact with a sheet shaped electrode current collector and wherein the second potential electrode is in electrical contact with the second potential electrode current collector on two sides of the second potential electrode current collector, the laminate is folded around the second potential electrode and the second potential electrode current collector such that the electrolyte is in contact with the second potential electrode on two sides of the second potential electrode current collector, the extended portion of the second potential electrode current collector extending from between the folded laminate.
Claim 3
Dependent Claim
14 words
The battery of claim 1, wherein the electrolyte is laminated on the electrode material.
Claim 4
Dependent Claim
32 words
The battery of claim 1, wherein the second potential electrode includes anode material less than fifteen microns thick, which material is mounted on each side of the second potential electrode current collector.
References Cited (Backward Citations)
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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) | 1998-12-25 | 1999-06-26 | 1999-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-12-25 | 2003-06-26 | 2003-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-12-25 | 2007-06-26 | 2007-12-26 | $7700.00 | Window Closed / Lapsed |