US 12,304,099 B2
Method for disassembling a battery housing of a high-voltage battery system
Malte Schulze, Gifhorn (DE); Ernst Storm, Wahrenholz (DE); and Frank Greppler, Wolfenbuettel (DE)
Assigned to Volkswagen Aktiengesellschaft, Wolfsburg (DE)
Filed by Volkswagen Aktiengesellschaft, Wolfsburg (DE)
Filed on May 9, 2022, as Appl. No. 17/739,858.
Claims priority of application No. 10 2021 204 685.1 (DE), filed on May 10, 2021.
Prior Publication US 2022/0355498 A1, Nov. 10, 2022
Int. Cl. B26D 1/147 (2006.01); B60K 1/04 (2019.01); H01M 10/54 (2006.01); H01M 50/262 (2021.01)
CPC B26D 1/147 (2013.01) [B60K 1/04 (2013.01); H01M 10/54 (2013.01); H01M 50/262 (2021.01); B60K 2001/0461 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method for disassembling a battery housing of a high-voltage battery system in a vehicle with a disassembly tool, the battery housing having housing parts that are in material connection with each other along joining flanges, the joining flanges having a joining gap therebetween and each extending along a flange longitudinal direction and having a flange width extending along a flange transverse direction, the method comprising:
providing the disassembly tool, the disassembly tool including a rotary cutter;
inserting, in an infeed movement in the flange transverse direction, the rotary cutter of the disassembly tool into the joining gap between the joining flanges until the rotary cutter reaches a penetration depth in the joining gap in order to loosen the material connection; and
while the rotary cutter is inserted into the joining gap at the penetration depth, moving the rotary cutter in a forward movement in the flange longitudinal direction to separate the material connection along the joining flanges,
wherein the material connection between the joining flanges extends over the flange width in the flange transverse direction, wherein the penetration depth of the rotary cutter is set to be less than the flange width so that after completion of the infeed movement, a residual portion of the material connection remains between the joining flanges over a residual flange width, and wherein after completion of the infeed movement, a levering process takes place, in which a lever force builds up via which the joining flanges are pressed apart so that the residual portion of the material connection tears open.