THE CELLS ARE EACH COMPOSED OF SEVERAL (7?) SMALL CELLS IN PARALLELL
In essence, this works like your car-battery, several plates alternately stacked pos-neg-pos-neg to get the surface-area for the capacity and discharge-rate required.....all the plates of each polarity are linked together, so there's only 1 Pos and one Neg connection.
@cockney steve
Yes, the eight "cells" of the 787 battery contain each 6 sub-cells in parallel.
Paralleling increases capacity. So each sub-cell has about 11Ah makes roughly the nominated 65Ah. These eight cell packs in serial a 3,7 V give you 29.6 V/65Ah.
Concerning the comparison with a car-battery, the 6 cells in serial of 2V each (lead-acid) give you 12V, but serial arrangement doesn't increase the capacity, just voltage.
Otherwise I fully agree with your post
