Patent ID: 8940446
Filing Date: 2015-01-27
Classification: H01M,Y02E

Abstract:
1. A solid state battery device, the battery device comprising: a current collector region; a lithium containing anode member overlying the current collector region; an electrolyte material comprising a first garnet material overlying the lithium containing anode member, the electrolyte material having a density ranging from about 80 percent to 100 percent of a theoretical density associated with the first garnet material, the first garnet material comprising La a porous cathode material consisting essentially of a second garnet material overlying the electrolyte material, the porous cathode material having a porosity of greater than about 30 percent and less than about 95 percent, the second garnet material being La a carbon bearing material overlying a surface region of the porous cathode material, the carbon bearing material comprising substantially carbon material; an oxygen bearing source in contact with the surface region of the porous cathode material; and a current collector structure configured to expose the surface region to the oxygen bearing source, and having a conductivity in a predetermined amount.