No, they used a Lithium IRON battery. LiFePO₄ literally means Lithium Iron Phosphate. These batteries are safer, more thermally stable, and have a longer cycle life compared to typical Lithium-Ion (LiCoO₂) batteries. However, LiFePO₄ has a lower energy density, meaning less capacity for the same size and weight.
This should be "Lithium Ion Phosphate...", right?