Patent ID: 8722229

Claim:
Power train battery assembly of an electric, fuel-cell or hybrid vehicle for transporting passengers and/or goods, said assembly having a plurality of prefabricated battery cells ( 12 ), each encased in an individual, externally-closed cell housing ( 14 ) and a housing that fixes the battery cells ( 12 ) together, the battery cells ( 12 ) being arranged in rows, wherein the housing has at least two gripping walls ( 2 to 8 ) per row, which walls are arranged at opposite outer areas of the circumference of the battery cells ( 12 ) and which walls are braced by holding means ( 32 ; 60 ; 62 ) in the radial direction of the battery cells ( 12 ) against one another in order to radially clamp the battery cells ( 12 ) therebetween, each wall having a corresponding clamp section ( 26 ) for each battery cell ( 12 ), wherein at least one tube ( 18 ) that conducts cooling fluid extends through the housing to dissipate heat energy from the battery cells ( 12 ), wherein the at least one tube ( 18 ) is joined with cooling fins ( 16 ) that abut the battery cells ( 12 ), and wherein press-on fin sections ( 44 ) protrude from the wall and press the cooling fins ( 16 ) snugly against the periphery of the battery cells ( 12 ).