Silicon nanoparticle-containing hydrogen polysilsesquioxane baked product-metal oxide composite and production method thereof, negative electrode active material for lithium ion battery, negative electrode for lithium ion battery, and lithium ion battery

摘要

A silicon nanoparticle-containing hydrogen polysilsesquioxane calcined product-metal oxide composite comprising a silicon nanoparticle-containing hydrogen polysilsesquioxane calcined product and a metal oxide, the silicon nanoparticle-containing hydrogen polysil The fired sesquioxane is a silicon nanoparticle having a volume-based average particle size of more than 10 nm and less than 500 nm, covering 5 to 95% by weight of the silicon nanoparticle, and chemically treating the surface of the silicon nanoparticle. And a silicon oxide structure derived from hydrogen polysilsesquioxane bonded to a hydrogen atom, represented by the general formula SiOxHy (0.01 x 1.35, 0 y 0.35), and a Si—H bond A silicon nanoparticle-containing hydrogen polysilsesquioxane fired product, wherein the metal oxide is titanium, zinc, zirconium, aluminum, And a silicon nanoparticle-containing hydrogen polysilsesquioxane fired product-metal oxide composite, which is a metal oxide composed of one or more metals selected from iron and iron.