US 11,735,711 B2
Battery with enhanced resistance to dendrite formation
Russell Bruch, Seneca, SC (US); Joseph Beauvais, Liberty, SC (US); Jeffrey Armstrong, Pickens, SC (US); Del Charles Brooks, III, Seneca, SC (US); Christopher Hallmark, Pickens, SC (US); and John Duggan, Greenville, SC (US)
Assigned to Pacesetter, Inc., Sunnyvale, CA (US)
Filed by Pacesetter, Inc., Sunnyvale, CA (US)
Filed on Feb. 19, 2021, as Appl. No. 17/180,081.
Application 17/180,081 is a continuation of application No. 16/226,890, filed on Dec. 20, 2018, granted, now 10,964,921.
Application 16/226,890 is a continuation of application No. 15/815,217, filed on Nov. 16, 2017, granted, now 10,727,454, issued on Jul. 28, 2020.
Claims priority of provisional application 62/553,551, filed on Sep. 1, 2017.
Claims priority of provisional application 62/448,843, filed on Jan. 20, 2017.
Claims priority of provisional application 62/423,081, filed on Nov. 16, 2016.
Prior Publication US 2021/0184320 A1, Jun. 17, 2021
Int. Cl. H01M 50/543 (2021.01); H01M 50/112 (2021.01); H01M 50/172 (2021.01); H01M 4/131 (2010.01); H01M 4/133 (2010.01); H01M 50/103 (2021.01); H01M 50/133 (2021.01); H01M 50/119 (2021.01); H01M 50/117 (2021.01); H01M 50/124 (2021.01); H01M 50/533 (2021.01); H01M 50/553 (2021.01); H01M 50/55 (2021.01); H01M 50/176 (2021.01); H01M 50/186 (2021.01); H01M 50/191 (2021.01); C01G 5/00 (2006.01); C01G 31/02 (2006.01)
CPC H01M 4/131 (2013.01) [H01M 4/133 (2013.01); H01M 50/103 (2021.01); H01M 50/112 (2021.01); H01M 50/117 (2021.01); H01M 50/119 (2021.01); H01M 50/124 (2021.01); H01M 50/133 (2021.01); H01M 50/176 (2021.01); H01M 50/533 (2021.01); H01M 50/55 (2021.01); H01M 50/553 (2021.01); C01G 5/00 (2013.01); C01G 31/02 (2013.01); H01M 50/186 (2021.01); H01M 50/191 (2021.01)] 17 Claims
 
1. A battery, comprising:
an outer case;
a cell stack disposed within the outer case, the cell stack including
an anode having a main anode body and an anode tab projecting from the main anode body, the main anode body having an anode outer edge, the anode outer edge having a first peripheral portion distant from the anode tab, and a second peripheral portion that is a remainder of the anode outer edge, surfaces of the main anode body including an anode active material;
a cathode having a main cathode body and a cathode tab projecting from the main cathode body, the main cathode body having a cathode outer edge, the cathode outer edge having a first peripheral portion adjacent the cathode tab, and a second peripheral portion that is a remainder of the cathode outer edge, surfaces of the main cathode body including a cathode active material; and
a separator layer electrically insulating the anode from the cathode, the anode, the cathode and the separator layer being stacked together with the main anode body offset from the main cathode body such that the first peripheral portion of the anode outer edge is recessed from the first peripheral portion of the cathode outer edge by a first distance and the second peripheral portion of the cathode outer edge is recessed from the second peripheral portion of the anode outer edge by a second offset distance, the first offset distance being the same as the second offset distance.