US 12,266,959 B2
Safe battery energy management systems, battery management system nodes, and methods
Seth Marshall Kahn, Sonoma, CA (US); Anthony John Stratakos, Edgartown, MA (US); Corrado Cammi, Mountain View, CA (US); and Anderson Rennie John, Santa Clara, CA (US)
Assigned to Element Energy, Inc., Meno Park, CA (US)
Filed by Element Energy, Inc., Menlo Park, CA (US)
Filed on Sep. 25, 2023, as Appl. No. 18/474,136.
Application 17/212,787 is a division of application No. 17/066,238, filed on Oct. 8, 2020, granted, now 10,992,149, issued on Apr. 27, 2021.
Application 18/474,136 is a continuation of application No. 17/495,011, filed on Oct. 6, 2021, granted, now 11,791,642.
Application 17/495,011 is a continuation in part of application No. 17/212,787, filed on Mar. 25, 2021, granted, now 11,258,279, issued on Feb. 22, 2022.
Prior Publication US 2024/0014674 A1, Jan. 11, 2024
Int. Cl. H02J 7/00 (2006.01); H01M 10/42 (2006.01)
CPC H02J 7/0036 (2013.01) [H01M 10/4235 (2013.01); H01M 10/4257 (2013.01); H02J 7/0063 (2013.01); H01M 2010/4271 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A first battery management system (BMS) node with reverse voltage failure mode protection, comprising:
a battery including a positive terminal and a negative terminal;
a direct-current to direct-current (DC-DC) converter including an output port configured to be electrically coupled in series with at least a second BMS node;
a first isolation switch electrically coupling the battery to the DC-DC converter and configured to selectively connect and disconnect the battery from the DC-DC converter; and
a second isolation switch configured to prevent flow of electric current in event of a short circuit between the first BMS node and the second BMS node.