| abstract |
The present application relates to batteries, separators, battery packs, electronic devices, electric vehicles, power storage devices, and power systems. A battery includes: an electrode body having a positive electrode and a negative electrode oppositely disposed through a separator; and an electrolyte, wherein the separator includes: a substrate; and a surface layer formed on at least one surface of the substrate and having pores larger than the substrate. Higher porosity, wherein the surface layer comprises particles and a resinous material, wherein the particles comprise particles selected from the group consisting of alumina, boehmite, yttrium oxide, titanium oxide, magnesium oxide, zirconium oxide, silicon oxide, zinc oxide, nitride Aluminum, boron nitride, silicon nitride, titanium nitride, silicon carbide, boron carbide, barium titanate, strontium titanate, barium sulfate, porous aluminosilicate, layered silicate, Li2O4, Li3PO4, LiF, hydrogen At least one of alumina, graphite, carbon nanotubes and diamond. |