US 12,337,526 B2
3D printed battery and method of 3D printing a battery
Teng-Sing Wei, Santa Clara, CA (US); and Jennifer A. Lewis, Cambridge, MA (US)
Assigned to President and Fellows of Harvard College, Cambridge, MA (US)
Appl. No. 16/969,681
Filed by President and Fellows of Harvard College, Cambridge, MA (US)
PCT Filed Feb. 11, 2019, PCT No. PCT/US2019/017492
§ 371(c)(1), (2) Date Aug. 13, 2020,
PCT Pub. No. WO2019/160810, PCT Pub. Date Aug. 22, 2019.
Claims priority of provisional application 62/631,146, filed on Feb. 15, 2018.
Prior Publication US 2021/0008789 A1, Jan. 14, 2021
Int. Cl. B29C 64/118 (2017.01); B29K 105/16 (2006.01); B29L 31/34 (2006.01); B33Y 10/00 (2015.01); B33Y 70/10 (2020.01); B33Y 80/00 (2015.01); H01M 4/04 (2006.01); H01M 4/66 (2006.01); H01M 10/0525 (2010.01); H01M 10/0585 (2010.01); H01M 50/403 (2021.01)
CPC B29C 64/118 (2017.08) [B33Y 10/00 (2014.12); B33Y 70/10 (2020.01); B33Y 80/00 (2014.12); H01M 4/0404 (2013.01); H01M 4/663 (2013.01); H01M 10/0525 (2013.01); H01M 10/0585 (2013.01); H01M 50/403 (2021.01); B29K 2105/16 (2013.01); B29L 2031/3468 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of 3D printing a lithium-ion battery, the method comprising:
extruding a packaging ink formulation and depositing one or more continuous filaments comprising the packaging ink formulation in a predetermined pattern on a substrate to form a first package portion;
extruding a first electrode ink formulation through a first deposition nozzle moving relative to the substrate, and depositing one or more continuous filaments comprising the first electrode ink formulation in a predetermined pattern to print a first electrode on a first current collector disposed on the first package portion;
extruding a separator ink formulation through a second deposition nozzle moving relative to the substrate, and depositing one or more continuous filaments comprising the separator ink formulation in a predetermined pattern to print a separator on the first electrode;
extruding a second electrode ink formulation through a third deposition nozzle moving relative to the substrate, and depositing one or more continuous filaments comprising the second electrode ink formulation in a predetermined pattern to print a second electrode on the separator; and
extruding the packaging ink formulation through a fourth deposition nozzle moving relative to the substrate, and depositing one or more continuous filaments comprising the packaging ink formulation in a predetermined pattern to form a second package portion in contact with the first package portion, the second package portion overlying a second current collector disposed on the second electrode, thereby forming a lithium-ion battery by 3D printing.