EP0050441A1
Expired / Lapsed
EP
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Anhydrous battery or cell
Assignee: Rohm and Haas Co
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Filing: 1981-10-06
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Granted: —
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Expires: 2001-10-06
Abstract
Abstract An anhydrous battery or cell comprises an anode, a cathode, an electrolyte and an anhydrous solvent, the cathode comprising a mixture of p-doped polyacetylene in admixture with 5-75% by weight of an electrically conductive material e.g. graphite or carbon black.Electrolytes include hexafluorophosphate, perchlorate etc. and suitable solvents are propylene carbonate, sulfolane etc.
Inventors
- 👤 Richard Thomas Gray
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 08:34
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/16; H01M4/00; H01M4/02; H01M4/36; H01M4/60; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
74 words
An anhydrous battery or cell comprising an anode, a cathode and an electrolyte in solution in an anhydrous solvent which is inert with respect to the cathode and anode, characterised in that the cathode comprises a mixture of polyacetylene and from 5-75% by weight based on the weight of the mixture of an electrically conductive material, the said polyacetylene either being p-doped prior to assembly or which becomes p-doped upon contact with the electrolyte.
Claim 2
Dependent Claim
74 words
An anhydrous battery or cell comprising an anode, a cathode and an electrolyte in solution in an anhydrous solvent which is inert with respect to the cathode and anode, characterised in that the cathode comprises a mixture of polyacetylene and from 5-75% by weight based on the weight of the mixture of an electrically conductive material, the said polyacetylene either being p-doped prior to assembly or which becomes p-doped upon contact with the electrolyte.
Claim 3
Dependent Claim
23 words
A battery or cell according to claim 1, wherein the electrically conductive material has a conductivity of at least 10 -6 (ohm-cm) l.
Claim 4
Dependent Claim
28 words
A battery or cell according to claim 2, wherein the electrically conductive material is carbon black, graphite or acetylene black or a mixture of two or more thereof.
Claim 5
Dependent Claim
18 words
A battery or cell according to claim 3, wherein the electrically conductive material is carbon black and/or graphite.
Claim 6
Dependent Claim
31 words
A battery or cell according to any one of the preceding claims, wherein-the cathode is formed from an intimate mixture of polyacetylene powder and said electrically conductive material in powder form.
Claim 7
Dependent Claim
21 words
A battery or cell according to any one of the preceding claims, wherein the anode is lithium, aluminum, sodium or magnesium.
Claim 8
Dependent Claim
27 words
A battery or cell according to any one of the preceding claims, wherein the electrolyte is a salt of the same metal as that of the anode.
Claim 9
Dependent Claim
26 words
A battery or cell according to any one of the preceding claims, wherein the electrolyte is a perchlorate, tetrafluoroborate, hexafluorophosphate, hexafluoroarsenate, hexafluoroantimonate, fluorosulfonate or trifluoromethane sulfonate.
Claim 10
Dependent Claim
37 words
A battery or cell according to any one of the preceding claims, wherein the anhydrous solvent is propylene carbonate, sulfolane, dimethoxyethane, bis(methoxyethyl) ether, dioxane, 3-methylsulfolane, tetrahydrofuran, 2-methyl tetrahydrofuran, dioxolane, ethylene carbonate, methyl formate, butyrolactone or dimethyl sulfile.
Claim 11
Dependent Claim
26 words
A battery or cell according to any one of claims 1-8, wherein the anode is lithium, the electrolyte is lithium hexafluorophosphate and the solvent is sulfolane.
References Cited (Backward Citations)
US3907597A
Cited
US4009323A
Cited
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