Production method for cathode material of lithium sulfur battery, cathode material of lithium sulfur battery, and lithium sulfur battery
AssigneeNational University Corporation Yokohama National University
InventorsMasayoshi Watanabe, Kaoru Dokko, Zhe Li, Shiguo Zhang
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Abstract
A production method for a cathode material of a lithium sulfur battery includes, in sequence: a step of preparing a first dispersed solution in which a carbon particle is dispersed in a lithium sulfate solution; a step of adding a solvent in the first dispersed solution, the solvent being a solvent in which lithium sulfate is insoluble; a step of separating a precursor particle from the first dispersed solution in which the solvent is added; and a step of changing the precursor particle into a cathode active material particle by heating the precursor particle under an inert atmosphere.
Claims5
A production method for a cathode material of a lithium sulfur battery, the production method comprising, in sequence:
- a step of preparing a first dispersed solution in which a carbon particle is dispersed in a lithium sulfate solution;
- a step of adding a solvent in the first dispersed solution, the solvent being a solvent in which lithium sulfate is insoluble;
- a step of separating a precursor particle from the first dispersed solution in which the solvent is added;
- and
- a step of changing the precursor particle into a cathode active material particle by heating the precursor particle under an inert atmosphere.
Dependencies are inferred from the claim text.