Method for manufacturing all-solid-state battery
AssigneeMtek-Smart Corporation
InventorMasafumi Matsunaga
Life of this patent
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Abstract
To lower electrical resistance by increasing the interfacial surface area and the adhesion between a current collector and an active material or an electrolyte, or between the active material and the electrolyte in an all-solid-state battery. In addition, to improve battery performance by eliminating or minimizing residual carbon originating from a binder. A slurry, composed of an electrode active material and a solvent, and a slurry, composed of electrolyte particles and a solvent, can be impacted against a target and thereby attached thereto to form a high-density layer and improve adhesion. Moreover, residual carbon is eliminated or minimized by eliminating or minimizing the content of binders, thereby improving battery performance.
Claims9
A method for manufacturing a storage battery, comprising:
- pulsed-spraying different electrode slurries at a gas pressure of 0.15 to 0.3 MPa on an object by independent heads to laminate each electrode slurry in order to form a positive or negative electrode on the object, wherein a distance between the object and each head is 70 mm or less, an angle of each head to the object is 30 degrees or less, a number of pulses per second is 10 Hz or higher, a base material is heated to between 30 and 150° C. when the different electrode slurries are pulsed-sprayed, each of the different electrode slurries contains a binder, and an amount of the binder in each electrode slurry is 2% or less of a total solid content by weight.
Dependencies are inferred from the claim text.