What’s the difference between a normal lithium-ion battery and a lithium polymer battery?

A lithium-ion polymer (LiPo) battery (also known as Li-poly, lithium-poly, PLiON, and other names) is a rechargeable Lithium-ion battery with a polymer electrolyte in the liquid electrolyte used in conventional Li-ion batteries. The integrated batteries in the Spirit 1.0 Plus, Spirit 1.0 Evo and eLite electric outboards.

There are a variety of LiPo chemistries available. All use a high conductivity gel polymer as the electrolyte. LiPos provide higher specific energies than other lithium batteries, often used in systems where weight is an important factor, such as mobile devices, drones, and some electric vehicles. Because of this higher energy density, LiPo batteries are generally more expensive.