US 12,261,284 B2
Protective structures for electrodes
Marina M. Safont Sempere, Sahuarita, AZ (US); and Chariclea Scordilis-Kelley, Tucson, AZ (US)
Assigned to Sion Power Corporation, Tucson, AZ (US)
Filed by Sion Power Corporation, Tucson, AZ (US)
Filed on Mar. 15, 2013, as Appl. No. 13/833,377.
Prior Publication US 2014/0272594 A1, Sep. 18, 2014
Int. Cl. H01M 4/1395 (2010.01); H01M 4/04 (2006.01); H01M 4/134 (2010.01); H01M 4/38 (2006.01); H01M 4/62 (2006.01); H01M 4/02 (2006.01); H01M 4/36 (2006.01); H01M 6/18 (2006.01); H01M 10/0525 (2010.01)
CPC H01M 4/1395 (2013.01) [H01M 4/0402 (2013.01); H01M 4/134 (2013.01); H01M 4/382 (2013.01); H01M 4/62 (2013.01); H01M 2004/021 (2013.01); H01M 4/366 (2013.01); H01M 6/187 (2013.01); H01M 10/0525 (2013.01); H01M 2300/0094 (2013.01); Y02E 60/10 (2013.01)] 29 Claims
OG exemplary drawing
 
1. An electrode structure comprising:
a metallic lithium layer;
a substantially continuous and substantially nonporous buffer layer disposed directly on the metallic lithium layer, wherein the buffer layer is a ceramic layer, a glassy-ceramic layer, or a glass layer and is conductive to lithium ions, wherein the buffer layer comprises carbon, wherein lithium makes up between 45 mol % and 65 mol % of the buffer layer, wherein nitrogen makes up between 0 mol % and 5 mol % of the buffer layer, wherein oxygen makes up between 25 mol % and 40 mol % of the buffer layer, and for which a molar ratio of lithium to carbon is greater than or equal to 1.75:1; and
a substantially continuous and substantially nonporous lithium nitride layer disposed directly on the buffer layer.