Patent ID: 6982132

Claim:
A rechargeable, stackable thin film electrochemical cell for a thin film, solid-state battery comprising: a dense, non-porous, thin film, unannealed inorganic cathode comprised of a first reversible lithium insertion material, said cathode formed by irradiating a depositing cathode film with an ion source having an ion beam energy of less than 100 eV; a dense, non-porous, thin film, inorganic anode comprised of a second reversible lithium insertion material; said first and second insertion materials having intrinsically anisotropic crystallographic lithium ion diffusion directions; a dense, non-porous, thin film, inorganic, solid-state electrolyte disposed between said cathode and said anode films, said electrolyte film forming a first and second interface respectively with said cathode and anode films; a first crystallographic lithium ion diffusion direction of said first insertion material aligned in a predominately non-parallel orientation to said cathode-electrolyte interface; and a second crystallographic lithium ion diffusion direction of said second insertion material aligned in a predominately non-parallel orientation to said anode-electrolyte interface.