EP0797264A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Electrode including organic disulfide compound and method of producing the same
Assignee: Panasonic Holdings Corp
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Filing: 1997-03-20
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Granted: —
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Expires: 2017-03-20
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. <IMAGE>
Inventors
- 👤 Tadashi Sotomura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 19:42
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: 11
Claim 1
Independent Claim
65 words
An electrode comprising a complex of at least one copper ion and at least one organic disulfide compound, 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
12 words
An electrode in accordance with claim 1, further comprising a conductive material.
Claim 3
Dependent Claim
18 words
An electrode in accordance with claim 2, wherein said conductive material is carbon power or metallic copper powder.
Claim 4
Dependent Claim
10 words
An electrode in accordance with claim 1, further comprising polyaniline.
Claim 5
Dependent Claim
24 words
An electrode in accordance with claim 2, wherein a mixture comprising said complex and said conductive material is supported by a conductive support member.
Claim 6
Dependent Claim
20 words
An electrode in accordance with claim 2, wherein said conductive support member is a carbon sheet or a titanium foil.
Claim 7
Dependent Claim
23 words
An electrode in accordance with claim 4, wherein a mixture comprising said complex and said polyaniline is supported by a conductive support member.
Claim 8
Dependent Claim
20 words
An electrode in accordance with claim 7, wherein said conductive support member is a carbon sheet or a titanium foil.
Claim 9
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 10
Dependent Claim
33 words
A method in accordance with claim 9, 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.
Claim 11
Dependent Claim
28 words
A lithium secondary battery comprising a cathode composed of the electrode in accordance with claim 1, an anode comprising lithium as an active material, and a non-aqueous electrolyte.
References Cited (Backward Citations)
No citation records indexed.
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