US 12,308,391 B2
Segmented cell architecture for solid state batteries
Jeffrey Sakamoto, Ann Arbor, MI (US); and Travis Thompson, Ann Arbor, MI (US)
Assigned to The Regents of the University of Michigan, Ann Arbor, MI (US)
Filed by Jeffrey Sakamoto, Ann Arbor, MI (US); and Travis Thompson, Ann Arbor, MI (US)
Filed on Feb. 1, 2017, as Appl. No. 15/421,499.
Claims priority of provisional application 62/289,559, filed on Feb. 1, 2016.
Prior Publication US 2017/0222254 A1, Aug. 3, 2017
Int. Cl. H01M 10/058 (2010.01); H01M 4/04 (2006.01); H01M 4/131 (2010.01); H01M 4/133 (2010.01); H01M 4/134 (2010.01); H01M 4/136 (2010.01); H01M 4/1391 (2010.01); H01M 4/1393 (2010.01); H01M 4/1395 (2010.01); H01M 4/1397 (2010.01); H01M 4/485 (2010.01); H01M 4/58 (2010.01); H01M 10/052 (2010.01); H01M 10/0525 (2010.01); H01M 10/0562 (2010.01); H01M 10/0565 (2010.01)
CPC H01M 10/058 (2013.01) [H01M 4/0471 (2013.01); H01M 4/0485 (2013.01); H01M 4/131 (2013.01); H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/136 (2013.01); H01M 4/1391 (2013.01); H01M 4/1393 (2013.01); H01M 4/1395 (2013.01); H01M 4/1397 (2013.01); H01M 4/485 (2013.01); H01M 4/5825 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); H01M 10/0562 (2013.01); H01M 10/0565 (2013.01); H01M 2300/0071 (2013.01); H01M 2300/0077 (2013.01); H01M 2300/0082 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An electrochemical device comprising:
a first layer comprising a cathode comprising a first array of first segments embedded within a first structural matrix;
a second layer comprising an anode comprising a second array of second segments embedded within a second structural matrix; and
a third layer comprising a solid-state electrolyte comprising a third array of third segments embedded within a third structural matrix,
wherein each of the first structural matrix, the second structural matrix, and the third structural matrix comprises a flexible polymeric material,
wherein the first layer, the second layer, and the third layer are stacked and bonded together to form a unit cell with the third layer positioned between the first layer and the second layer,
wherein at least one of the first segments of the cathode and the second segments of the anode contact a current collector,
wherein the distance across the first segments, the second segments, and the third segments is in a range of 1 micrometer to 5 centimeters,
wherein the thickness of the first segments, the second segments, and the third segments is in a range of 1 micrometer to 100 micrometers, and
wherein the first segments, the second segments, and the third segments have a ratio of a distance across the segment to a thickness of the segment in a range of 1:1 to 50,000:1.