US 12,438,222 B2
Battery module
Ryan Pitre, Wessling (DE); Angel Plaza, Wessling (DE); Joerg Weber, Wessling (DE); Gerd Fritsch, Wessling (DE); Jason Dunthorn, Wessling (DE); Felix Scheile, Wessling (DE); Armin Ader, Wessling (DE); Stefan Kneissl, Wessling (DE); Pradeep Pulipaka, Wessling (DE); and Marina Leal, Wessling (DE)
Assigned to Lilium eAircraft GmbH, Wessling (DE)
Filed by Lilium eAircraft GmbH, Wessling (DE)
Filed on Feb. 17, 2022, as Appl. No. 17/673,975.
Claims priority of application No. 21158236.6 (EP), filed on Feb. 19, 2021.
Prior Publication US 2022/0328918 A1, Oct. 13, 2022
Int. Cl. H01M 50/211 (2021.01); H01M 10/658 (2014.01); H01M 50/342 (2021.01)
CPC H01M 50/211 (2021.01) [H01M 10/658 (2015.04); H01M 50/3425 (2021.01); H01M 2220/20 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A battery module for a vehicle, the battery module comprising two end plates and a cell stack comprising an arrangement of several interconnected battery cells that are arranged in a row along a stacking direction(S), wherein the cell stack is sandwiched between the two end plates in the stacking direction(S), wherein the battery module further comprises a separate tube-like enclosure comprising a heat insulating material, the tube-like enclosure having a front opening and a back opening that are closed by the end plates, so that the tube-like enclosure and the two end plates form a housing in which the cell stack is accommodated,
wherein the tube-like enclosure is fitted over and fixed to the end plates, the tube-like enclosure being fixed to a peripheral wall of each of the end plates by means of fasteners provided in holes provided in different places around the perimeter of the housing where the tube-like enclosure overlaps the peripheral wall of each of the end plates, each peripheral wall extending in parallel to the stacking direction, wherein the maximum cross-sectional area of at least one of the end plates is smaller than a minimum cross-sectional area of an interior space of that region of the enclosure in which the end plates and the cell stack are arranged.