METHOD OF PRODUCING CATHODE MATERIAL FOR SOLID-STATE LITHIUM-ION BATTERIES Russian patent published in 2024 - IPC H01M4/139 

FIELD: electrode materials.

SUBSTANCE: invention relates to the field of electrode materials based on an organic compound and can be used for lithium-ion all-solid-state accumulators and batteries. Result is achieved due to modification of the interphase layer between the electrolyte and the cathode in order to eliminate the bad contact of the solid body with the solid body and reduce high interphase resistance. For this purpose, polymer glue is used as interphase layer. When heated, the polymer adhesive crystallizes into a solid ion-conducting polymer, which is placed on the interface, thereby increasing the contact area of the electrolyte and the cathode. Method is characterized by a sequence of steps and enables to obtain homogeneous thin films on top of the electrode mass on negative and positive electrodes, which enables to optimize their characteristics.

EFFECT: wider range of currents, higher stability of cycling and operating characteristics during long-term operation.

1 cl, 1 dwg