US4719159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed lithium battery
Assignee: Ultralife Corp
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Filing: 1986-05-19
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Granted: 1988-01-12
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Expires: 2006-05-19
Abstract
Abstract A battery is disclosed which comprises a container having a plurality of cell cavities and folded generally flat electrodes in each of the cavities. A container cover is affixed to the container to seal the cell cavities. In order to provide a fluid-tight battery, the container cover includes a plurality of electrically-conductive inserts sealed therein which form intercell electrical connections and the electrical connections between the cells and the battery terminals.
Inventors
- 👤 Peter S. Clark
- 👤 Richard T. Cataldi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:40
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/42; H01M6/46; H01M50/00; H01M50/10; H01M50/102; H01M50/147; H01M6/14; H01M6/16; H01M6/162; H01M6/164; H01M6/166; H01M2220/00; H01M2220/30; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/52; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
112 words
A battery comprising: a container having a plurality of cell cavities; an electrode assembly in each of said cavities including a pair of electrodes and a separator material between the electrodes, one of said electrodes in each pair being a lithium anode; an electrolyte in each of said cell cavities, said electrolyte containing a lithium salt; a cover on said container and fused thereto to hermetically seal each of said cell cavities, said cover being formed from a chemically modified polyolefin and having conductive inserts molded therein, said inserts being bonded to said polyolefin, and said inserts forming electrical connections between electrodes in adjacent cell cavities and between electrodes and battery terminals.
Claim 2
Dependent Claim
112 words
A battery comprising: a container having a plurality of cell cavities; an electrode assembly in each of said cavities including a pair of electrodes and a separator material between the electrodes, one of said electrodes in each pair being a lithium anode; an electrolyte in each of said cell cavities, said electrolyte containing a lithium salt; a cover on said container and fused thereto to hermetically seal each of said cell cavities, said cover being formed from a chemically modified polyolefin and having conductive inserts molded therein, said inserts being bonded to said polyolefin, and said inserts forming electrical connections between electrodes in adjacent cell cavities and between electrodes and battery terminals.
Claim 3
Dependent Claim
19 words
A battery, as defined in claim 1, wherein said container is formed from polypropylene having a reinforced filler therein.
Claim 4
Dependent Claim
18 words
A battery, as defined in claim 1, wherein said electrode assembly is formed from folded generally flat electrodes.
Claim 5
Dependent Claim
22 words
A battery, as defined in claim 1, wherein a generally U-shaped insert forms the electrical connection between electrodes in adjacent cell cavities.
Claim 6
Dependent Claim
21 words
A battery, as defined in claim 1, wherein the other electrode in each pair of electrodes is a MnO 2 cathode.
Claim 7
Dependent Claim
16 words
A battery, as defined in claim 1, wherein said separator material is a porous electrically-insulating material.
Claim 8
Dependent Claim
21 words
A battery, as defined in claim 6, wherein said electrolyte contains LiBF 4 in a solvent mixture of 4-butyrolactone and dimethoxyethane.
Claim 9
Dependent Claim
22 words
A battery, as defined in claim 6, wherein said electrolyte contains LiBF 4 in a solvent mixture of propylene carbonate and dimethoxyethane.
Claim 10
Dependent Claim
23 words
A battery, as defined in claim 6, wherein said electrolyte contains LiCF 3 SO 3 in a solvent mixture of 4-butyrolactone and dimethoxyethane.
Claim 11
Dependent Claim
17 words
A battery, as defined in claims 7, 8 or 9, wherein said container has three cell cavities.
Claim 12
Dependent Claim
13 words
A battery, as defined in claim 1, wherein said inserts are stainless steel.
Claim 13
Dependent Claim
12 words
A battery, as defined in claim 1, wherein said inserts are aluminum.
Claim 14
Dependent Claim
12 words
A battery, as defined in claim 1, wherein said inserts are copper.
Claim 15
Dependent Claim
16 words
A battery, as defined in claim 1, wherein said polyolefin is Polybond™ 1016 chemically modified polyolefin.
Claim 16
Dependent Claim
16 words
A battery, as defined in claim 1, wherein said polyolefin is Polybond™ 1001 chemically modified polyolefin.
Claim 17
Dependent Claim
16 words
A battery, as defined in claim 1, wherein said polyolefin is Plexar 2511 chemically modified polyolefin.
Claim 18
Dependent Claim
30 words
A battery, as defined in claim 1, wherein two of said inserts extend from a side of said cover bounding said cell cavities to an opposite side of the cover.
Claim 19
Dependent Claim
43 words
A battery, as defined in claim 17, wherein a terminal plate is bonded to said cover, and said terminal plate has a positive terminal connected to one of said two inserts and a negative terminal connected to the other of said two inserts.
Claim 20
Dependent Claim
113 words
A battery comprising: a container having a plurality of cell cavities, said container being formed from polypropylene having a reinforcing filler therein; a pair of folded electrodes in each of said cavities, one of said electrodes being a lithium anode and the other of the electrodes being a MnO 2 cathode; an electrolyte in each of said cell activities; a cover on said container and fused thereto, said cover being formed from a polyolefin and having stainless steel inserts molded therein, said inserts being bonded to said polyolefin, said cover having battery terminals thereon, and said inserts forming electrical connections between electrodes in adjacent cell cavities and between electrodes and said battery terminals.
Claim 21
Dependent Claim
113 words
A battery comprising: a container having a plurality of cell cavities, said container being formed from polypropylene having a reinforcing filler therein; a pair of folded electrodes in each of said cavities, one of said electrodes being a lithium anode and the other of the electrodes being a MnO 2 cathode; an electrolyte in each of said cell activities; a cover on said container and fused thereto, said cover being formed from a polyolefin and having stainless steel inserts molded therein, said inserts being bonded to said polyolefin, said cover having battery terminals thereon, and said inserts forming electrical connections between electrodes in adjacent cell cavities and between electrodes and said battery terminals.
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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) | 1991-01-11 | 1991-07-13 | 1992-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-11 | 1995-07-13 | 1996-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-11 | 1999-07-13 | 2000-01-12 | $7700.00 | Window Closed / Lapsed |