Lithium-sulfur battery cathode material and method for making the same
AssigneesTsinghua University, Hon Hai Precision Industry Co., Ltd.
InventorsLi Sun, Jia-Ping Wang, Kai-Li Jiang, Shou-Shan Fan
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Abstract
A method for making a lithium-sulfur battery cathode material includes steps of providing a carbon nanotube source; providing sulfur and a first solvent; adding the carbon nanotube source and the sulfur into the first solvent, and ultrasonically agitating the first solvent to form a first suspension. A second solvent is added during an agitation process to form a second suspension and the first solvent and the second solvent are removed from the second suspension. The present disclosure also relates to a lithium-sulfur battery cathode material obtained by the method.
Claims12
A method for making a lithium-sulfur battery cathode material comprising:
- providing a carbon nanotube source;
- providing sulfur, and a first solvent, wherein the sulfur is soluble in the first solvent, the first solvent is methanol, ethanol, or acetone;
- adding the carbon nanotube source and the sulfur into the first solvent, and ultrasonically agitating the first solvent having the carbon nanotube source and the sulfur, to form a first suspension, wherein a concentration of the sulfur in the first solvent ranges from about 0.1 g/L to about 5 g/L;
- adding a second solvent into the first suspension during an agitation process to form a second suspension, wherein the sulfur is soluble in the second solvent, the first solvent and the second solvent is miscible;
- and
- removing the first solvent and the second solvent from the second suspension, to obtain the lithium-sulfur battery cathode material.
Dependencies are inferred from the claim text.