Method for manufacturing all-solid-state battery
AssigneeMtek-Smart Corporation
InventorMasafumi Matsunaga
Life of this patent
Estimating the term…
Abstract
A high-density layer can be formed and adherence increased by causing a slurry formed primarily from an electrode active material and a solvent and a slurry formed primarily from electrolyte particles and the solvent to alternately collide with a subject material with an impact force and to adhere and be layered thereon in thin film. A slurry formed primarily from a conductive additive and the solvent is separately created and is coated in a dispersed manner in a small quantity at a desired position. Carbon residue is eliminated or greatly reduced and battery performance improved by eliminating a binder or greatly reducing the binder content.
Claims11
A method for manufacturing an all-solid-state battery by forming electrode layers on positive and negative current collectors for the all-solid-state battery, forming an electrolyte layer on at least one of the electrode layers, and sandwiching a positive electrode layer, the electrolyte layer, and a negative electrode layer between the positive current collector and the negative current collector and in contact with each other or sandwiching the electrolyte layer between the electrode layers to form a laminated structure, comprising:
- a preparing step;
- a lamination step;
- wherein in the preparing step, a slurry containing electrode active material and solvent, and a slurry containing electrolyte particles or electrolyte fibers and solvent are prepared,
- in the lamination step, at least two slurries are alternatively applied to the current collector in a film to stack each slurry so that two or more layers are formed, and
- a conductive agent is prepared so as to be contained in an independent slurry and applied on the electrolyte particles or fibers or on the electrode active material in a state where particles or fibers of the conductive agent are dispersed so that the particles or the fibers of the conductive agent do not form a film.
Dependencies are inferred from the claim text.