Abstract:
A primary cell having an anode comprising lithium and a cathode comprising iron disulfide (FeS2) and carbon particles. The electrolyte comprises a lithium salt dissolved in a nonaqueous solvent mixture comprising a cyclic carbonate which contains an additive, iodine or bromine, suppressing voltage delay. A cathode slurry is prepared comprising iron disulfide powder, carbon, binder, and liquid solvent. The mixture is coated onto a conductive substrate and solvent evaporated leaving a dry cathode coating on the substrate. The anode and cathode can be spirally wound with separator therebetween and inserted into the cell casing with electrolyte then added.
Abstract:
Cathodes that include an active cathode material and a binder are described. The binder includes a first polymeric material and a second material.
Abstract:
A cathode includes a foil current collector including a coating containing iron disulfide on one side that covers less than 100% of the side.
Abstract:
A primary cell having an anode comprising lithium and a cathode comprising iron disulfide (FeS2) and carbon particles. The electrolyte comprises a lithium salt dissolved in a nonaqueous solvent mixture which contains an additive, preferably iodine, suppressing voltage delay. A cathode slurry is prepared comprising iron disulfide powder, carbon, binder, and liquid solvent. The mixture is coated onto a conductive substrate and solvent evaporated leaving a dry cathode coating on the substrate. The anode and cathode can be spirally wound with separator therebetween and inserted into the cell casing with electrolyte then added.
Abstract:
A primary lithium battery can include a current collector that includes aluminum, a cap that includes aluminum, or both. The aluminum battery components can have high mechanical strength and low electrical resistance.
Abstract:
A cathode for a lithium battery is described. The cathode includes: (a) a current collector including aluminum foil; and (b) an active cathode material including: (i) manganese dioxide; (ii) conductive materials; and (iii) a binder selected from the group consisting of linear di- and tri-block polymers, linear tri-block polymers cross-linked with melamine resin, ethylene-propylene copolymers, ethylene-propylene-diene terpolymers, tri-block fluorinated thermoplastics, hydrogenated nitrile rubbers, fluoro-ethylene-vinyl ether copolymers, thermoplastic polyurethanes, thermoplastic olefins, and polyvinylidine fluoride homopolymers.
Abstract:
Applying materials, e.g. electrolytes and other materials, in the form of a spray during battery manufacture, particularly using a vibrator nebulizer (4) to produce a small droplet, low velocity spray. Preferably the droplet size is about 5 micron to about 30 micron and the spray velocity is about 10 inch/sec or less, particularly about 3 to about 5 inch/sec. The method includes providing a separator and applying the electrolyte to at least one portion of the separator; providing the separator in a battery can prior to the applying the material by spraying; applying the electrolyte such that substantial pooling of the electrolyte in the bottom of the can is provided.
Abstract:
Cathodes that include an active cathode material and a binder are described. The binder includes a first polymeric material and a second material.
Abstract:
A primary lithium battery can include a current collector that includes aluminum, a cap that includes aluminum, or both. The aluminum battery components can have high mechanical strength and low electrical resistance.
Abstract:
A primary cell having an anode comprising lithium or lithium alloy and a cathode comprising iron disulfide (FeS 2 ), iron sulfide (FeS) and carbon particles. The electrolyte comprises a lithium salt dissolved in a solvent mixture. A cathode slurry is prepared comprising iron disulfide (FeS 2 ) powder, iron sulfide (FeS) powder, carbon, binder, and a liquid solvent. The mixture is coated onto a conductive substrate and solvent evaporated leaving a dry cathode coating on the substrate. The anode and cathode can be spirally wound with separator therebetween and inserted into the cell casing with electrolyte then added.