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US 10,522,836 B2Granted
Carbon-lead blends for use in hybrid energy storage devices
AssigneeBASF SE
InventorsLeah A. Thompkins, Aaron M. Feaver, Henry R. Costantino, Alan Tzu-Yang Chang, Katharine Geramita, Avery Sakshaug, Matthew J. Maroon
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Abstract
The present application is directed to blends comprising a plurality of carbon particles and a plurality of lead particles. The blends find utility in any number of electrical devices, for example, in lead acid batteries. Methods for making and using the blends are also disclosed.
Claims41
A blend comprising a plurality of amorphous carbon particles and a plurality of lead particles, wherein:
- the amorphous carbon particles have a specific surface area of at least 500 m2/g, a pH greater than 8, and a total pore volume of at least 0.5 cc/g;
- and
- the blend comprises a total impurity content of less than 500 ppm of all elements having atomic numbers ranging from 11 to 92, excluding lead, as measured by proton induced x-ray emission.
Dependencies are inferred from the claim text.