US 11,817,588 B2
Three-dimensional lattice batteries via additive manufacturing
Rahul Panat, Pittsburgh, PA (US); Jie Li, Katy, TX (US); Jonghyun Park, Rolla, MO (US); and Mohammad Sadeq Saleh, Pittsburgh, PA (US)
Assigned to Carnegie Mellon University, Pittsburgh, PA (US); and The Curators of the University of Missouri, Columbia, MO (US)
Filed by Carnegie Mellon University, Pittsburgh, PA (US); and The Curators of the University of Missouri, Columbia, MO (US)
Filed on Oct. 4, 2019, as Appl. No. 16/593,622.
Claims priority of provisional application 62/766,151, filed on Oct. 4, 2018.
Prior Publication US 2020/0112030 A1, Apr. 9, 2020
Int. Cl. H01M 4/80 (2006.01); H01M 4/48 (2010.01); H01M 4/58 (2010.01); H01M 4/525 (2010.01); H01M 4/38 (2006.01); H01M 4/66 (2006.01); H01G 11/26 (2013.01); H01G 11/56 (2013.01); H01G 11/70 (2013.01); H01M 10/0568 (2010.01); H01G 11/68 (2013.01); H01M 4/02 (2006.01); H01G 11/50 (2013.01)
CPC H01M 4/80 (2013.01) [H01G 11/26 (2013.01); H01G 11/56 (2013.01); H01G 11/70 (2013.01); H01M 4/38 (2013.01); H01M 4/483 (2013.01); H01M 4/525 (2013.01); H01M 4/5825 (2013.01); H01M 4/661 (2013.01); H01M 4/663 (2013.01); H01M 4/664 (2013.01); H01M 10/0568 (2013.01); H01G 11/50 (2013.01); H01G 11/68 (2013.01); H01M 2004/021 (2013.01); H01M 2004/025 (2013.01); H01M 2004/028 (2013.01); H01M 2300/0017 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An electrode incorporated within an electrochemical cell, the electrochemical cell comprising:
the electrode;
a cathode;
a polymeric permeable membrane; and
a liquid electrolyte,
wherein the electrode comprises: a three-dimensional open cell lattice comprising a plurality of unit cells defined by a plurality of porous, interconnected, conductive metal[,] or ceramic trusses formed by droplet-based printing having a diameter ranging from 20 μm to 50 μm, periodically-spaced with periodicity ranging from 2 μm to 500 μm per unit cell in an X-dimension, a Y-dimension, and/or a Z-dimension,
wherein the electrode comprises a thickness from about 250 μm to about 450 μm,
wherein the cathode comprises lithium oxide, lithium cobalt oxide, lithium manganese oxide, lithium titanium oxide, lithium nickel oxide, lithium iron phosphate fluoride, lithium cobalt nickel manganese oxide, lithium cobalt nickel manganese oxide, silicon, lithium ferrophosphate, sulfur, a lithium foil, or combinations thereof,
wherein the polymeric permeable separator comprises polyolefin, polyethylene, polypropylene, or combinations thereof, and
wherein the liquid electrolyte comprises ethylene carbonate, propylene carbonate, ethyl methyl carbonate, or a combination thereof and further comprises LiPF6, LiAsF6, LiClO4, LiBF4, lithium triflate, or combinations thereof.