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US5869206A
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Electrode including organic disulfide compound and method of producing the same
Assignee: Panasonic Holdings Corp
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Filing: 1997-03-18
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Granted: 1999-02-09
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Expires: 2017-03-18
Abstract
Abstract An electrode of the present invention comprises a complex of at least one organic disulfide compound and at least one copper ion. The electrode maintains a high charging and discharging efficiency and has favorable charge and discharge cycle characteristic without losing a high energy density that is characteristic of the organic disulfide compound.
Inventors
- 👤 Tadashi Sotomura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:20
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/13; H01M4/137; G; G02; G02F; G02F1/00; G02F1/01; G02F1/15; G02F1/153; G02F1/155; G02F2001/1555; H01M4/36; H01M4/60; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
98 words
An electrode comprising a conductive support member, wherein said conductive support member is a carbon sheet or a titanium foil, and a mixture supported by said conductive support member, said mixture comprising a complex of at least one copper ion and at least one organic disulfide compound, and a conductive material, wherein said organic disulfide compound contains at least one sulfur--sulfur bond, and wherein said sulfur--sulfur bond is cleaved when electrolytically reduced to form a sulfur-metal ion bond, and said sulfur-metal ion bond is regenerated into said sulfur--sulfur bond when electrolytically oxidized, said metal ion including a proton.
Claim 2
Dependent Claim
98 words
An electrode comprising a conductive support member, wherein said conductive support member is a carbon sheet or a titanium foil, and a mixture supported by said conductive support member, said mixture comprising a complex of at least one copper ion and at least one organic disulfide compound, and a conductive material, wherein said organic disulfide compound contains at least one sulfur--sulfur bond, and wherein said sulfur--sulfur bond is cleaved when electrolytically reduced to form a sulfur-metal ion bond, and said sulfur-metal ion bond is regenerated into said sulfur--sulfur bond when electrolytically oxidized, said metal ion including a proton.
Claim 3
Dependent Claim
11 words
The electrode of claim 1 wherein said mixture further comprises polyaniline.
Claim 4
Dependent Claim
13 words
The electrode of claim 1 wherein said mixture further comprises a gel electrolyte.
Claim 5
Dependent Claim
13 words
The electrode of claim 2 wherein said mixture further comprises a gel electrolyte.
Claim 6
Dependent Claim
16 words
The electrode of claim 1 wherein said conductive material is carbon powder or metallic copper powder.
Claim 7
Dependent Claim
16 words
The electrode of claim 2 wherein said conductive material is carbon powder or metallic copper powder.
Claim 8
Dependent Claim
28 words
A lithium secondary battery comprising a cathode, wherein said cathode comprises the electrode of claim 1, an anode comprising lithium as an active material, and a non-aqueous electrolyte.
Claim 9
Dependent Claim
96 words
An electrode comprising a conductive support member, wherein said conductive support member is a carbon sheet or a titanium foil, and a mixture supported by said conductive support member, said mixture comprising a complex of at least one copper ion and at least one organic disulfide compound, and polyaniline, wherein said organic disulfide compound contains at least one sulfur--sulfur bond, and wherein said sulfur--sulfur bond is cleaved when electrolytically reduced to form a sulfur-metal ion bond, and said sulfur-metal ion bond is regenerated into said sulfur--sulfur bond when electrolytically oxidized, said metal ion including a proton.
Claim 10
Dependent Claim
96 words
An electrode comprising a conductive support member, wherein said conductive support member is a carbon sheet or a titanium foil, and a mixture supported by said conductive support member, said mixture comprising a complex of at least one copper ion and at least one organic disulfide compound, and polyaniline, wherein said organic disulfide compound contains at least one sulfur--sulfur bond, and wherein said sulfur--sulfur bond is cleaved when electrolytically reduced to form a sulfur-metal ion bond, and said sulfur-metal ion bond is regenerated into said sulfur--sulfur bond when electrolytically oxidized, said metal ion including a proton.
Claim 11
Dependent Claim
13 words
The electrode of claim 8 wherein said mixture further comprises a gel electrolyte.
Claim 12
Dependent Claim
28 words
A lithium secondary battery comprising a cathode, wherein said cathode comprises the electrode of claim 8, an anode comprising lithium as an active material, and a non-aqueous electrolyte.
Claim 13
Independent Claim
132 words
A method of producing an electrode including an organic disulfide compound, said method comprising the steps of: dissolving an organic disulfide compound in N-R-2-pyrrolidone, where R denotes a hydrogen atom or an alkyl group, to prepare a solution, wherein said-organic disulfide compound contains at least one sulfur--sulfur bond, and wherein said sulfur--sulfur bond is cleaved when electrolytically reduced to form a sulfur-metal ion (including proton) bond and said sulfur-metal ion bond is regenerated into said sulfur--sulfur bond when electrolytically oxidized, said metal ion including a proton; adding polyaniline to said solution to prepare a solution A; dissolving a copper salt in N-R-2-pyrrolidone to prepare a solution B; mixing said solution A with said solution B to obtain a mixture; and heating said mixture in an inert gas atmosphere or in a vacuum.
Claim 14
Independent Claim
132 words
A method of producing an electrode including an organic disulfide compound, said method comprising the steps of: dissolving an organic disulfide compound in N-R-2-pyrrolidone, where R denotes a hydrogen atom or an alkyl group, to prepare a solution, wherein said-organic disulfide compound contains at least one sulfur--sulfur bond, and wherein said sulfur--sulfur bond is cleaved when electrolytically reduced to form a sulfur-metal ion (including proton) bond and said sulfur-metal ion bond is regenerated into said sulfur--sulfur bond when electrolytically oxidized, said metal ion including a proton; adding polyaniline to said solution to prepare a solution A; dissolving a copper salt in N-R-2-pyrrolidone to prepare a solution B; mixing said solution A with said solution B to obtain a mixture; and heating said mixture in an inert gas atmosphere or in a vacuum.
Claim 15
Dependent Claim
33 words
A method in accordance with claim 11, further comprising the step of applying said mixture of said solution A and said solution B onto a conductive support member, prior to said heating step.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2002-02-08 | 2002-08-10 | 2003-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-02-08 | 2006-08-10 | 2007-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-02-08 | 2010-08-10 | 2011-02-09 | $7700.00 | Window Closed / Lapsed |