Sulfur cathodes, sulfur cathode materials, and apparatus and methods for making same
AssigneeCarbonIP Technologies Inc.
InventorsJin Kwon TAK, Earl JENSON
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Abstract
A method for embedding sulfur into conductive carbon is provided. Elemental sulfur is dissolved in liquid ammonia to form a sulfur-ammonia solution. Conductive carbon is soaked in the sulfur-ammonia solution to embed the conductive carbon with the dissolved sulfur. The liquid ammonia in the sulfur-ammonia solution can be removed as gaseous ammonia to yield sulfur-embedded conductive carbon. The sulfur-embedded conductive carbon can be used to manufacture sulfur cathodes. Such sulfur cathodes and batteries incorporating such sulfur cathodes are provided.
Claims2
-30. (canceled)
An apparatus for embedding sulfur into conductive carbon, the apparatus comprising:
- a sulfur dissolving tank comprising a first inlet for flowing liquid ammonia into the sulfur dissolving tank, a second inlet for loading elemental sulfur into the sulfur dissolving tank, and an outlet for withdrawing a sulfur-ammonia solution from the sulfur dissolving tank, and
- a sulfur impregnating tank in selective fluid communication with the sulfur dissolving tank, the sulfur impregnating tank comprising a first inlet connected to the outlet of the sulfur dissolving tank, a second inlet for adding conductive carbon into the sulfur impregnating tank, a release valve for evaporating the liquid ammonia, and a release conduit for discharging gaseous ammonia.
Dependencies are inferred from the claim text.