%0 Journal Article
%A Eongyu Yi
%A Hao Shen
%A Stephen Heywood
%A Judith Alvarado
%A Dilworth Y Parkinson
%A Guoying Chen
%A Stephen W Sofie
%A Marca M Doeff
%B ACS Applied Energy Materials
%D 2020
%G eng
%N 1
%P 170 - 175
%R 10.1021/acsaem.9b02101
%T All-Solid-State Batteries Using Rationally Designed Garnet Electrolyte Frameworks
%V 3
%8 01/2020
%! ACS Appl. Energy Mater.
%X <p><span>Functioning bulk-type all-solid-state batteries in a practical form factor with composite positive electrodes, using Al-substituted Li</span><span>7</span><span>La</span><span>3</span><span>Zr</span><span>2</span><span>O</span><span>12</span><span>&nbsp;(LLZO) as the solid electrolyte, have been demonstrated for the first time. The devices incorporate bilayers composed of dense LLZO membranes and porous LLZO scaffolds infiltrated with LiNi</span><span>0.6</span><span>Mn</span><span>0.2</span><span>Co</span><span>0.2</span><span>O</span><span>2</span><span>&nbsp;and other components as positive electrodes, combined with lithium anodes. The porous scaffolds are prepared using an easily scaled freeze-tape-casting method. The unidirectional pores of the scaffold facilitate infiltration of cathode components and shorten lithium ion diffusion path lengths, while the addition of a soft ionically conductive solid to the scaffold ensures good contact among the components.</span></p>