#lithium ion polymer battery

You've probably noticed that they also differ in composition: There are those that are built with Lithium-Ion (Li-Ion) and those with Lithium Polymer (Li-Poly). Lithium-Ion (Li-Ion) Then came Lithium-Ion, a type of battery in which lithium ions move from the negative electrode to the positive electrode during discharge and back when charging. *Priming is a conditioning cycle that is applied as a service tool to improve battery performance during usage or after prolonged storage. Lithium Polymer (Li-Poly) Lithium-Ion Polymer, more commonly known as Lithium Polymer (also abbreviated as LiPo, Li-Po, but we're using Li-Poly in this article), were first introduced in the 1970s. It is a rechargeable battery of lithium-ion technology in a pouch format. As a result of being flexible and lightweight, Li-Polys carry lower energy densities, suffer less cycle counts, and are more expensive to produce -- the cost-to-energy ratio is higher than that of Lithium-Ion. It features SGS 5-star drop protection and an even larger 7,000mAh battery with 18W charging. The Xiaomi 15T comes with 5,500mAh Li-ion Polymer battery with 67W HyperCharge. Read more in our articles including "Battery 101: Intro to Li-Ion and Li-Poly" and "Smartphones Under P10,000 | Q2 2026".