EP0111214A2
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EP
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Nonaqueous cell and a method for treating an active metal anode of a nonaqueous cell
Assignee: Edgewell Personal Care Brands LLC
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Filing: 1983-11-23
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Granted: —
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Expires: 2003-11-23
Abstract
Abstract 57 A nonaqueous cell employing a liquid active cathode, such as thionyl chloride, and an anode, such as lithium, coated with a boron-containing surface film that will substantially prevent excessive anode passivation during storage or discharge of the cell.
Inventors
- 👤 John Clark Bailey
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 17:38
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/06; H01M6/00; H01M6/14; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
97 words
A nonaqueous cell comprising an active metal anode, a cathode and an ionically conductive electrolyte solution containing a solute dissolved in a nonaqueous solvent and wherein said solute consists of a salt of a first component of a halide of an element selected from the group consisting of Al, Sb, Zr, and P, and a second component of a halide, sulfide, sulfite, oxide or carbonate of calcium or an alkali metal selected from the group consisting of Li, Na, and K, characterized in that said active metal anode has a surface layer of a boron-containing material thereon.
Claim 2
Dependent Claim
97 words
A nonaqueous cell comprising an active metal anode, a cathode and an ionically conductive electrolyte solution containing a solute dissolved in a nonaqueous solvent and wherein said solute consists of a salt of a first component of a halide of an element selected from the group consisting of Al, Sb, Zr, and P, and a second component of a halide, sulfide, sulfite, oxide or carbonate of calcium or an alkali metal selected from the group consisting of Li, Na, and K, characterized in that said active metal anode has a surface layer of a boron-containing material thereon.
Claim 3
Dependent Claim
24 words
The nonaqueous-cell of claim 1, characterized in that the cathode is a liquid cathode which also functions as a solvent thereby producing a cathode-electrolyte.
Claim 4
Independent Claim
118 words
A method for treating an active metal anode and assembling the anode, along with a cathode collector and a nonaqueous electrolyte to produce a cell, characterized by (a) preparing a boron-containing material in a liquid medium; (b) placing an active metal anode in the boron-containing medium of step (a) for a time period sufficient to form a boron-containing film on at least a portion of the surface of the anode; and (c) removing the anode from the liquid medium and assembling the anode along with a cathode and a nonaqueous electrolyte in a container thereby producing a cell in which the excessive passivation of the active metal anode is substantially prevented during storage and usage of the cell.
Claim 5
Independent Claim
118 words
A method for treating an active metal anode and assembling the anode, along with a cathode collector and a nonaqueous electrolyte to produce a cell, characterized by (a) preparing a boron-containing material in a liquid medium; (b) placing an active metal anode in the boron-containing medium of step (a) for a time period sufficient to form a boron-containing film on at least a portion of the surface of the anode; and (c) removing the anode from the liquid medium and assembling the anode along with a cathode and a nonaqueous electrolyte in a container thereby producing a cell in which the excessive passivation of the active metal anode is substantially prevented during storage and usage of the cell.
Claim 6
Dependent Claim
120 words
The method of claim 3, characterized in that in step (a) the boron-containing material is selected from the group consisting of Li 2 B 10 Cl 10 , Li 2 B 9 Cl 9 and Li 2 B 12 Cl 12 ; in step (b) the anode is selected from the group consisting of lithium, sodium, calcium, potassium, and aluminum; and in step (c) the cathode is a liquid cathode selected from the group consisting of thionyl chloride, sulfuryl chloride, phosphorous oxychloride, thionyl bromide, chromyl chloride, vanadyl tribromide, selenium oxychloride, selenium tetrafluoride, selenium monobromide, thiophosphoryl chloride, thiophopsphoryl bromide, vanadium pentafluoride, lead tetrachloride, titanium tetrachloride, disulfur decafluoride, tin bromide trichloride, tin dibromide dichloride, tin tribromide chloride and liquid SO 2 .
References Cited (Backward Citations)
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