US4816357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intensification of ion exchange in lithium batteries
Assignee: NORSONS INTERNATIONAL LLC
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Filing: 1987-11-25
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Granted: 1989-03-28
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Expires: 2007-11-25
Abstract
Abstract The contact area of the anode of lithium batteries with the electrolyte is substantially increased by deposition of minute lithium particles on the anode base layer to form an irregular layer in contact with the electrolyte which reduces the manufacturing cost and increases the contact area which increases the ion exchange between the lithium particles and the electrolyte.
Inventors
- 👤 Henry F. Hope
- 👤 Stephen F. Hope
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:33
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/18; H01M6/181; H01M4/00; H01M4/02; H01M4/06; H01M4/08; H01M4/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
89 words
In a solid-state lithium battery of the type comprising a lithium composite anode, a polymeric electrolyte, and a cathode, the improvement comprising: an anode having a base metal layer, a multiplicity of lithium particles on said base metal layer, a plurality of which are in fused adherent contact with said metal layer and all of which are in electrical and mechanical contact with each other, with spaces therebetween forming an irregular porous layer on said base metal layer for contact with said electrolyte whereby ion exchange therebetween is intensified.
Claim 2
Dependent Claim
89 words
In a solid-state lithium battery of the type comprising a lithium composite anode, a polymeric electrolyte, and a cathode, the improvement comprising: an anode having a base metal layer, a multiplicity of lithium particles on said base metal layer, a plurality of which are in fused adherent contact with said metal layer and all of which are in electrical and mechanical contact with each other, with spaces therebetween forming an irregular porous layer on said base metal layer for contact with said electrolyte whereby ion exchange therebetween is intensified.
Claim 3
Dependent Claim
34 words
The battery as described in claim 1 wherein said lithium particles are formed by melting lithium to form micro particles which are discharged to be deposited on said base metal layer forming said anode.
Claim 4
Dependent Claim
15 words
The battery as described in claim 1 in which said particles are of spherical shape.
Claim 5
Dependent Claim
15 words
The battery as described in claim 1 in which said particles are of triangular shape.
Claim 6
Dependent Claim
15 words
The battery as described in claim 1 in which said particles are of square shape.
Claim 7
Dependent Claim
15 words
The battery as described in claim 1 in which said particles are of irregular shape.
Claim 8
Dependent Claim
14 words
The battery as described in claim 1 wherein said base metal layer is nickel.
References Cited (Backward Citations)
US4578326A
Cited
GB2157066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-03-27 | 1992-09-26 | 1993-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-27 | 1996-09-26 | 1997-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-27 | 2000-09-26 | 2001-03-28 | $7700.00 | Window Closed / Lapsed |