US4107403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrochemical cell
Assignee: Toshiba Corp
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Filing: 1977-10-20
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Granted: 1978-08-15
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Expires: 1997-10-20
Abstract
Abstract An electrochemical cell which includes a sealed metallic container at least partially composed of an anode metal member and a cathode metal member, said container containing a power generating material. At each edge portion of the metal members is covered by a seal material including a coating layer of thermoplastic resin containing a functional group with hydrogen bonding capability. Sealing of the metallic container is achieved by heat-pressure bonding the seal members formed on the respective metal members with each other or these seal members with similar seal members formed on another metal member forming the metallic container.
Inventors
- 👤 Tsutomu Takamura
- 👤 Tamotsu Shirogami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:38
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/50; H01M50/543; H01M50/552; H01M50/559; H01M50/56; H01M50/10; H01M50/183; H01M50/186; H01M50/19; H01M50/193; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
88 words
An electrochemical cell comprising a sealed metallic container at least partially composed of an anode metal member and a cathode metal member with their respective edge portions; a power generating material contained in said metallic container; and insulating seal members formed over said respective edge portions, said insulating seal members including coating layers of thermoplastic resin containing a functional group with hydrogen bonding capability and formed on said respective edge portions of the metal members, sealing of said metallic container being achieved by heat-pressure bonding said seal members.
Claim 2
Dependent Claim
88 words
An electrochemical cell comprising a sealed metallic container at least partially composed of an anode metal member and a cathode metal member with their respective edge portions; a power generating material contained in said metallic container; and insulating seal members formed over said respective edge portions, said insulating seal members including coating layers of thermoplastic resin containing a functional group with hydrogen bonding capability and formed on said respective edge portions of the metal members, sealing of said metallic container being achieved by heat-pressure bonding said seal members.
Claim 3
Dependent Claim
28 words
An electrochemical cell according to claim 1, wherein said seal members further includes a layer or layers of thermosetting resin formed on said coating layers of thermoplastic resin.
Claim 4
Dependent Claim
62 words
An electrochemical cell according to claim 1, wherein said cathode metal member forms a body of said sealed metallic container and said anode metal member forms a cover to close said container body, sealing of said metallic container being achieved by heat-pressure bonding said seal members formed over the respective edge portions of said anode and cathode metal members with each other.
Claim 5
Dependent Claim
13 words
An electrochemical cell according to claim 3, wherein said thermoplastic resin is Nylon.
Claim 6
Dependent Claim
13 words
An electrochemical cell according to claim 4, wherein said thermoplastic resin is 12-Nylon.
Claim 7
Dependent Claim
28 words
An electrochemical cell according to claim 3, wherein said seal members further includes a layer or layers of thermosetting resin formed on said coating layers of thermoplastic resin.
Claim 8
Dependent Claim
20 words
An electrochemical cell according to claim 6, wherein said thermosetting resin is a mixture of phenol resin and epoxy resin.
Claim 9
Dependent Claim
27 words
An electrochemical cell according to claim 6, wherein said layer of thermosetting resin is a laminate composed of a phenol resin layer and an epoxy resin layer.
Claim 10
Dependent Claim
120 words
An electrochemical cell according to claim 1, wherein said sealed metallic container comprises a bottom composed of said cathode metal member, a side wall composed of a third metal member with said seal members formed over both edge portions thereof, and a cover composed of said anode metal member; sealing of said metallic container being achieved by heat-pressure bonding said seal member formed over the edge portion of said anode metal member and said seal member formed over one edge portion of said third metal member, as well as said seal member formed over the edge portion of said cathode metal member and said seal member formed over the other edge portion of said third metal member, with each other.
Claim 11
Dependent Claim
13 words
An electrochemical cell according to claim 9, wherein said thermoplastic resin is Nylon.
Claim 12
Dependent Claim
13 words
An electrochemical cell according to claim 10, wherein said thermoplastic resin is 12-Nylon.
Claim 13
Dependent Claim
28 words
An electrochemical cell according to claim 9, wherein said seal members further includes a layer or layers of thermosetting resin formed on said coating layers of thermoplastic resin.
Claim 14
Dependent Claim
20 words
An electrochemical cell according to claim 12, wherein said thermosetting resin is a mixture of phenol resin and epoxy resin.
Claim 15
Dependent Claim
27 words
An electrochemical cell according to claim 12, wherein said layer of thermosetting resin is a laminate composed of a phenol resin layer and an epoxy resin layer.
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) | 1981-08-14 | 1982-02-13 | 1982-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-14 | 1986-02-13 | 1986-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-14 | 1990-02-13 | 1990-08-15 | $7700.00 | Window Closed / Lapsed |