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BMW i3 and BMW i8 (2014 - Current) The BMW i3 and BMW i8 are the first two cars launch under BMW's new sub brand BMW i. The i3 is an all carbon fiber, all electric vehicle meant for urban mobility. The BMW i8 is a carbon fiber and aluminum hybrid halo car.
Extensive BMW expertise goes into the special packaging and assembly of the battery. In all, the assembly process comprises 400 operations. The battery casing protects the lithium-ion cells and at the same time improves the rigidity of the vehicle as a whole. After the battery cells have been packaged into modules, the assembly process begins. The modules are lifted one by one into an aluminium tray, then manually connected in series using a communication cable harness. Finally, the battery top cover and bottom cover are fitted and the finished batteries undergo an end-of-line test. The battery is designed in such a way that individual battery modules can be easily swapped for repair purposes.