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US 12,113,222 B2Granted
Method for producing cathode material and cathode including cathode material produced thereby
AssigneesHyundai Motor Company, Kia Corporation
InventorsYong Sub Yoon, Hong Seok Min, Hajime Tsuchiya, Yuki Sasaki
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Abstract
The present disclosure relates to a method for producing a cathode material and a cathode including a cathode material produced thereby. More specifically, the present disclosure provides a production method which improves process efficiency while improving cathode performance in consideration of the practical use of an all-solid-state battery in the production of a cathode for the all-solid-state battery.
Claims9
A method for producing a cathode material, the method comprising steps of:
- preparing a coating solution by adding, mixing, and dissolving a coating material comprising lithium (Li) and niobium (Nb) in a solvent containing water (H2O);
- forming a coating layer by spraying the coating solution onto surfaces of lithium oxide-based particles;
- and
- heat-treating the coating layer;
- wherein preparing the coating solution comprises:
- an addition step of adding the coating material to the solvent containing water;
- a dissolution step of dissolving the coating material in the solvent to obtain a solution;
- and
- a neutralization step of neutralizing the solution by adding hydroxide thereto;
- wherein the solvent further contains an adjuvant, and the adjuvant comprises a surfactant;
- wherein the surfactant comprises at least one of an anionic surfactant and a nonionic surfactant;
- and
- wherein the adjuvant is contained in an amount of 0.001 to 0.30 parts by weight based on 100 parts by weight of the solvent.
10 more elements
Dependencies are inferred from the claim text.