US4369237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-element anode structures for electrochemical cells
Assignee: Yardney Technical Products Inc
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Filing: 1981-11-09
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Granted: 1983-01-18
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Expires: 2001-11-09
Abstract
Abstract Anode structures for primary electrochemical cells. An anode structure in accordance with a first embodiment of the invention includes a metal screen (e.g., of nickel) and a plurality of spaced-apart lithium anode elements arranged in a predetermined pattern (e.g., row and column) and embedded within the metal screen. A metal frame is connected with and surrounds the metal screen and has an electrical terminal extending therefrom. An anode structure in accordance with a second embodiment of the invention is similar to that of the first embodiment with the exception that the spaces between the lithium anode elements of the anode structure of the second embodiment are filled with a heat-absorbing porous insulative separator material.
Inventors
- 👤 Franz Goebel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:14
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/06; H01M6/00; H01M6/14
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
32 words
An anode structure for an electrochemical cell, comprising: a metal screen; and a plurality of spaced-apart discrete lithium anode elements arranged in a pattern and in physical contact with the metal screen.
Claim 2
Dependent Claim
32 words
An anode structure for an electrochemical cell, comprising: a metal screen; and a plurality of spaced-apart discrete lithium anode elements arranged in a pattern and in physical contact with the metal screen.
Claim 3
Dependent Claim
50 words
An anode structure in accordance with claim 1 wherein: the metal screen is of a predetermined thickness and has interconnected portions defining a plurality of openings in the screen; and the lithium anode elements are embedded within the screen by way of the interconnected portions and openings in the screen.
Claim 4
Dependent Claim
18 words
An anode structure in accordance with claim 2 wherein: the metal screen is a flat expanded metal screen.
Claim 5
Dependent Claim
24 words
An anode structure in accordance with claim 3 wherein: the plurality of lithium anode elements are arranged in a pattern of rows and columns.
Claim 6
Dependent Claim
26 words
An anode structure in accordance with claim 4 wherein: the lithium anode elements in each row are spaced apart from each other by an equal distance.
Claim 7
Dependent Claim
26 words
An anode structure in accordance with claim 2 wherein: each of the lithium anode elements has a generally cylindrical configuration and a generally circular cross section.
Claim 8
Dependent Claim
27 words
An anode structure in accordance with claim 2 further comprising: a metal frame connected with and surrounding the metal screen and having an electrical terminal extending therefrom.
Claim 9
Dependent Claim
29 words
An anode structure in accordance with claim 1 further comprising: a porous insulative separator material disposed between the lithium anode elements and in physical contact with the metal screen.
Claim 10
Dependent Claim
27 words
An anode structure in accordance with claim 8 wherein: the porous separator material is selected from the group consisting of alumina, fiberglass, a silicate, and mixtures thereof.
Claim 11
Dependent Claim
54 words
An anode structure in accordance with claim 8 wherein: the metal screen is of a predetermined thickness and has interconnected portions defining a plurality of openings in the screen; and the lithium anode elements and the separator material are embedded within the screen by way of the interconnected portions and openings in the screen.
Claim 12
Dependent Claim
18 words
An anode structure in accordance with claim 10 wherein: the metal screen is a flat expanded metal screen.
Claim 13
Dependent Claim
24 words
An anode structure in accordance with claim 11 wherein: the plurality of lithium anode elements are arranged in a pattern of rows and columns.
Claim 14
Dependent Claim
26 words
An anode structure in accordance with claim 12 wherein: the lithium anode elements in each row are spaced apart from each other by an equal distance.
Claim 15
Dependent Claim
26 words
An anode structure in accordance with claim 10 wherein: each of the lithium anode elements has a generally cylindrical configuration and a generally circular cross section.
Claim 16
Dependent Claim
27 words
An anode structure in accordance with claim 10 further comprising: a metal frame connected with and surrounding the metal screen and having an electrical terminal extending therefrom.
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) | 1986-01-17 | 1986-07-19 | 1987-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-17 | 1990-07-19 | 1991-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-17 | 1994-07-19 | 1995-01-18 | $7700.00 | Window Closed / Lapsed |