Center: battery pack/module case. The two magic silver electronic boxes on top are: BCM (Battery Condition Module - left side) and MCM (Motor Control Module -right)
Top (above pack case): wiring harness
Right: bus plate/cover - contains bus bars which interconnect the 20 NiMH sticks/subpacks, through-connected with bolts.
Bottom: battery module cooling fan/duct
Left: junction side components (including wires/cables, connectors, bus bars, contactors, resistor, fuse, induction ammeter coils, etc.); orange plate/bus cover bolted to ends of sticks & battery case
20 sticks/subpacks containing 6 "D" size NiMH cells each. Arrayed so the bolt connections through the end plates create a series string of 120 cells in the pack.
The nominal voltage per cell is 1.2 volts, for a total pack voltage of 144 volts (1.2 V x 120 cells).
The small ring terminals on each stick are the ends of a strip of 6 (one for each cell)
PTC (positive temperature coefficient - "posistor") devices - through this strip, the car's electronics can monitor temperature changes in the pack. (There are additional temperature sensors in the pack.)
I'm free!