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US 12,763,333 B2Granted
Aluminum-coated fiber additive for resistance reduction in a battery and battery materials
AssigneeBATTERY ELECTRON TRANSPORT ASSOCIATES, iNC.
InventorGeorge Clayton Hansen
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Abstract
The electrical resistance of active cathodic and anodic films may be significantly reduced by the addition of small fractions of conductive additives within a battery system. The decrease in resistance in the cathode and/or anode leads to easier electron transport through the battery, resulting in increases in power, capacity and rates while decreasing joules heating losses.
Claims1
A battery cathode with enhanced electrical conductivity for use in a battery, the battery cathode comprising:
- an active base cathode material comprising lithium iron phosphate;
- and
- an additive dispersed within the active base cathode material creating a dispersed mixture, the additive comprising:
- a plurality of aluminum-coated fibers having a diameter of from 3 microns to 20 microns, an aluminum-coating thickness between 0.1 micron and 3 microns;
- and a fiber length of from 0.1 mm to 1.0 mm, each aluminum-coated fiber has a fiber substrate wherein the fiber is selected from the group of materials consisting of pan ox, silica, quartz, silicates, alumina, aluminosilicates, borosilicates, glass, minerals, carbides, nitrides, borides, polymers, cellulose, inorganic fibers, and organic fibers;
- and
- the additive is dispersed into the active base cathode material in a loading weight range 1% of up to 10% of the active base cathode material.
4 more elements
Dependencies are inferred from the claim text.