JP2017111954A5

JP2017111954A5 -

Info

Publication number: JP2017111954A5
Application number: JP2015244925A
Authority: JP
Filing date: 2015-12-16
Publication date: 2019-01-17

Claims

And metallic alkoxide compound,
An alkanolamine compound,
A formamide compound,
A metal oxide film-forming composition comprising a solvent.

The molar ratio when the metal alkoxide compound is 1, the alkanolamine compound is 0.5 or more and 3.0 or less, the formamide compound is 0.5 or more and 3.0 or less, The composition for forming a metal oxide film according to claim 1.

To include _{_{Z rO 2, LiNbO 3, Al}} 2 O 3, Li 2 ZrO 3, Li 3 PO 4, Li 3 BO 3, Li said metal alkoxide compound of ₃ to form a kind Ru selected from SbO ₃ The metal oxide film-forming composition according to claim 1 or 2, characterized in that it is characterized.

The metal alkoxide compound is tetramethoxy zirconium, tetraethoxy zirconium, tetra-i-propoxy zirconium, tetra-n-propoxy zirconium, tetra-i-butoxy zirconium, tetra-n-butoxy zirconium, tetra-sec-butoxy zirconium, tetra -T-butoxyzirconium, methoxylithium, ethoxylithium, i-propoxylithium, n-propoxylithium, i-butoxylithium, n-butoxylithium, sec-butoxylithium, t-butoxylithium, 2-butoxyethoxylithium, trimethoxy Aluminum, triethoxyaluminum, tri-i-propoxyaluminum, tri-n-propoxyaluminum, tri-i-butoxyaluminum, tri-n- Toxialuminum, tri-sec-butoxyaluminum, tri-t-butoxyaluminum, pentamethoxyniobium, pentaethoxyniobium, penta-i-propoxyniobium, penta-n-propoxyniobium, penta-i-butoxyniobium, penta-n- Butoxy niobium, penta-sec-butoxy niobium, trimethyl phosphate, triethyl phosphate, tri-n-butyl phosphate, trimethyl phosphite, triethyl phosphite, trimethoxy boron, triethoxy boron, tri-i-propoxy boron , tri -n- propoxy boron, trimethoxy antimony, triethoxy antimony, tri -i- propoxy antimony, tri -n- propoxy antimony, tri -i- butoxy antimony, one of Ru is selected from tri -n- butoxy antimony Characterized Mukoto, metal oxide film-forming composition according to any one of claims 1 to 3.

The alkanolamine compound is monoethanolamine, monopropanolamine, monoisopropanolamine, mononormalpropanolamine, monobutanolamine, mononormalbutanolamine, mono-2-hydroxybutylamine, diethanolamine, diisopropanolamine, di-2-hydroxy characterized butylamine, N- methylethanolamine, N- ethyl ethanolamine, N- benzyl ethanolamine, methyldimethanolamine, methyldiethanolamine, triethanolamine, triisopropanolamine, to include one of Ru is selected from tributanolamine The metal oxide film-forming composition according to any one of claims 1 to 4.

The formamide compound, formamide, N, N-wherein the dimethyl include one that Ru is selected from formamide, metal oxide film-forming composition according to any one of claims 1 to 5 .

A positive electrode composite in which a positive electrode active material layer and a solid electrolyte layer are combined,
Using a metal oxide film-forming composition according to any one of claims 1 to 6, wherein the positive electrode active material layer and the solid was found provided between the electrolyte layer, the metal oxide A positive electrode composite comprising a film.

A method for producing a positive electrode composite in which a positive electrode active material layer and a solid electrolyte layer are combined,
Applying the metal oxide film-forming composition to the positive electrode active material layer, using the metal oxide film-forming composition according to any one of claims 1 to 6;
Solidifying the applied metal oxide film-forming composition to form a metal oxide film on the surface of the positive electrode active material layer;
The positive electrode active material layer on which the metal oxide film is formed and the solid electrolyte layer to form the positive electrode composite. Production method.

The method for producing a positive electrode composite according to claim 8, wherein the metal oxide film-forming composition is solidified at a temperature of 500 ° C or higher.

A positive electrode composite according to claim 7;
And a negative electrode.

A method for producing a battery having a positive electrode composite in which a positive electrode active material layer and a solid electrolyte layer are combined, and a negative electrode including a negative electrode active material layer,
Applying the metal oxide film-forming composition on the surface of the positive electrode active material layer using the metal oxide film-forming composition according to any one of claims 1 to 6,
Solidifying the applied metal oxide film-forming composition to form the metal oxide film on the surface of the positive electrode active material layer;
Forming the cathode composite by combining the cathode active material layer on which the metal oxide film is formed and the solid electrolyte layer;
And a step of bonding the positive electrode composite and the negative electrode.

A method for producing a battery comprising: a positive electrode active material layer; a solid electrolyte layer; and a current collector in contact with the positive electrode active material layer exposed from the solid electrolyte layer,
A step of obtaining a porous positive electrode active material layer by heat-treating a mixture containing the positive electrode active material and a binder under a temperature condition of 850 ° C. or higher and lower than the melting point of the positive electrode active material;
Applying the metal oxide film-forming composition according to any one of claims 1 to 6 to the porous positive electrode active material layer;
Solidifying the applied metal oxide film-forming composition to form a metal oxide film on the surface including the inside of the pores of the porous positive electrode active material layer;
And a step of forming a solid electrolyte layer by applying a heat treatment to the surface of the positive electrode active material layer by applying a liquid containing the material for forming the solid electrolyte layer and heat-treating it. .

The method for producing a battery according to claim 12, wherein the metal oxide film-forming composition is solidified at a temperature of 500 ° C or higher.