US 12,394,994 B2
Battery system
David Lai, Redwood City, CA (US); Dustin Grace, San Francisco, CA (US); Derek R. Paul, Burlingame, CA (US); Yale Chen, Burlingame, CA (US); and Cagkan Yildiz, Burlingame, CA (US)
Assigned to Proterra Powered LLC, Burlingame, CA (US)
Filed by PROTERRA POWERED LLC, Burlingame, CA (US)
Filed on Apr. 9, 2025, as Appl. No. 19/174,194.
Application 19/174,194 is a continuation of application No. 17/806,989, filed on Jun. 15, 2022.
Application 17/806,989 is a continuation in part of application No. 17/655,091, filed on Mar. 16, 2022, abandoned.
Claims priority of provisional application 63/162,416, filed on Mar. 17, 2021.
Prior Publication US 2025/0239871 A1, Jul. 24, 2025
Int. Cl. H02J 7/00 (2006.01); B60L 50/64 (2019.01); B60L 58/14 (2019.01); B60L 58/18 (2019.01); H01M 10/42 (2006.01); H01M 10/613 (2014.01); H01M 10/625 (2014.01); H01M 10/6554 (2014.01); H01M 50/204 (2021.01); H01M 50/249 (2021.01); H01M 50/583 (2021.01)
CPC H02J 7/00304 (2020.01) [B60L 50/64 (2019.02); B60L 58/14 (2019.02); B60L 58/18 (2019.02); H01M 10/425 (2013.01); H01M 10/613 (2015.04); H01M 10/625 (2015.04); H01M 10/6554 (2015.04); H01M 50/204 (2021.01); H01M 50/249 (2021.01); H01M 50/583 (2021.01); H02J 7/0013 (2013.01); H02J 7/0031 (2013.01); H02J 7/00712 (2020.01); B60L 2210/10 (2013.01); H01M 2010/4271 (2013.01); H01M 2200/103 (2013.01); H01M 2220/20 (2013.01); H02J 2207/20 (2020.01)] 17 Claims
OG exemplary drawing
 
1. A battery system of an electric vehicle, comprising:
a plurality of battery packs, each battery pack comprising a pyro fuse and a plurality of battery cells enclosed within a housing; and
a battery management device electrically connected to each of the battery packs to control an electrical output of the plurality of battery packs, the battery management device comprising a primary contactor and a primary active fuse connected in series with the pyro fuse of each of the plurality of battery packs, the primary contactor being configured to protect all of the plurality of battery packs by being opened when a system current has exceeded a contactor maximum current threshold;
wherein the pyro fuse of each battery pack is connected to a common primary pyro fuse of the battery management device.