US 12,030,655 B2
Aircraft battery system including a pressure-sensitive element sealing a battery venting region from a fluid channel
Michael Adam Zagrodnik, Singapore (SG); Krishnamoorthi Sivalingam, Singapore (SG); Satyanarayana Reddy Gajjela, Singapore (SG); Vidor Veres-Szekely, Mosdós (HU); Daniel Lorincz, Singapore (SG); István Örökös-Tóth, Egar (HU); and Anand Prabhu Mathivanan, Singapore (SG)
Assigned to ROLLS-ROYCE plc, London (GB)
Filed by ROLLS-ROYCE plc, London (GB)
Filed on May 23, 2022, as Appl. No. 17/751,172.
Claims priority of application No. 2108574 (GB), filed on Jun. 16, 2021.
Prior Publication US 2022/0402620 A1, Dec. 22, 2022
Int. Cl. H01M 10/613 (2014.01); B60L 50/64 (2019.01); B60L 58/26 (2019.01); B64C 29/00 (2006.01); B64D 27/24 (2024.01)
CPC B64D 27/24 (2013.01) [B60L 50/64 (2019.02); B60L 58/26 (2019.02); B64C 29/0033 (2013.01); H01M 10/613 (2015.04); B60L 2200/10 (2013.01); H01M 2220/20 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An aircraft comprising:
a battery pack having a plurality of battery cells; and
a channel in fluid communication with an aircraft air inlet and an aircraft air outlet whereby, during flight, air enters the aircraft through the inlet, flows through the channel and exits the aircraft through the outlet, wherein:
each of the battery cells is arranged to vent into a venting region of the battery pack;
a path is between the venting region of the battery pack and the channel, whereby thermal products vented by the battery cells can exit the aircraft via the path and the channel; and
a pressure-sensitive element is arranged in the path between the venting region and the channel, the pressure-sensitive element being configured to seal the venting region from the channel until a pressure in the venting region exceeds a threshold level.