The hearT oF The maT­Ter

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The ar­chi­tec­ture of the e-tron bat­tery is very sim­i­lar to the Jaguar i-Pace’s though there are cer­tain re­mark­able dif­fer­ences. The num­ber of cells in each mod­ule and the num­ber of mod­ules are all the same but each of the cells has a slightly higher ca­pac­ity thereby adding up to 95kWh, as op­posed to 90kWh for the Jaguar. The bat­tery pack is made up of 36 mod­ules con­tain­ing 12 pouch cells each for a to­tal of 432 cells. With 4 cells be­ing used in par­al­lel and there­fore there be­ing 108 cell groups with a nom­i­nal volt­age of 3.6 volts giv­ing the sys­tem a nom­i­nal volt­age of 390 volts and a fully charged volt­age of about 450 volts. The bat­tery pack is wa­ter-cooled with what Audi claims to be a very ef­fi­cient ther­mo­dy­namic sys­tem of tem­per­a­ture op­ti­miza­tion and is also sand­wiched in high strength alu­minium to add to the towr­sional rigid­ity of the floor as can be seen in the il­lus­tra­tions.

Hous­ing cover (alu­minium sheet)BJB (Bat­tery Junc­tion Box)Coolant con­nec­tionMod­ule con­nec­tor Hous­ing tray with crash pro­tec­tionstruc­ture (ex­truded sec­tions)Cell mod­ules with twelve 60 Ah cells Bat­tery Junc­tion Box Alu­minium sheet Hous­ing coverCell mod­ule with twelve 60 Ah cellsBMC (Bat­tery man­age­ment con­troller) Alu­minium crash struc­ture Hous­ing tray Bat­tery frame Cool­ing sys­tem Lower pro­tec­tion cover

Pouch cellAlu­minium case

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