Patent ID: 11876216
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A method for producing an electrode, the method comprising:
preparing a slurry including a sulfide solid electrolyte, an electrode active material, a carbon-containing material, and a solvent, by
stirring a first mixture including the sulfide solid electrolyte, the carbon-containing material, and the solvent, using an ultrasound homogenizer,
adding the electrode active material to the first mixture to prepare a second mixture, and
stirring the second mixture;

applying the slurry to a current collector to form a coating film on the current collector; and
removing the solvent from the coating film to form an electrode mixture layer,
[wherein the slurry is prepared by stirring a first mixture including the sulfide solid electrolyte, the carbon-containing material, and the solvent, using an ultrasound homogenizer, adding the electrode active material to the first mixture to prepare a second mixture, and stirring the second mixture,] and
wherein an intensity ratio C/S determined from a spectrum obtained by analyzing the electrode mixture layered by Auger electron spectroscopy satisfies 0.2≤C/S≤1, where C is an intensity of a first peak in the spectrum, the first peak corresponding to carbon included in the carbon-containing material, and S is an intensity of a second peak in the spectrum, the second peak corresponding to sulfur including in the sulfide solid electrolyte.