This is slightly story related, so chances are you won't miss this. This is stage two of a series of trophies tied to the collection of Power Cells (101 in total):
The final 101 value will not come into play until the end, and you will see why. If you go into the start menu, you should be able to see brief descriptions from every area along with how many Power Cells can be found in each. A note of interest would be to make sure that you stay in the area to collect all you can (Precursor Orbs, Power Cells, Scout Flies) before moving on.
*Note: Some instances will require you to back-track at later times through your gameplay. Examples would be turning on the Blue Vents in the Forbidden Jungle or the Yellow Vents in Snowy Mountain.
**As all areas come with listings for how many Power Cells are found in each, I will avoid listing unnecessary numbers.