[image] [Batteries Types] Li-ion vs. Li-Po

Virtues and Virtues: [Batteries Types] Li-ion vs. Li-Po

June 18, 2015

You cannot in any way over emphasize the massive importance of batteries in our lives.

Batteries have greatly enhanced the mobility of technology and you can’t really imagine a world without battery packs.

Lithium-ion (Li-Ion) and Lithium Polymer (Li-Po) batteries are the two most common types of battery systems. Majority of smartphones draw their power from Li-on batteries while a section use Li-Po batteries.

So, what are the factors that influence the choice between Li-Ion and Li-Po batteries?

Well, here are some,

[image]  [Batteries Types] Li-ion vs. Li-Po

Energy Density Level

Energy density is by definition ‘the amount of energy stored in a given system’. Li-ion batteries have an average energy density of 110-160 Wh/kg, while Li-Po batteries have a 100-130 Wh/Kg average rating.

Therefore, under optimum conditions, a 1Kg Li-ion battery can produce 160 Watts of Power while a 1 Kg Li-Po battery will produce 130 watts of Power.

A win for Li-on batteries

Related: Next Generation Super Li-on Batteries to last up to Three Times longer

Battery Life          

The durability of a smartphone battery is largely determined by its cycle life.

By definition, the Cycle life of a battery is the number of charge/discharge cycles that the battery is able to support before its capacity falls below 80% of its original capacity.

Li-ion batteries have a cycle life of between 500 to 1000 charge/discharge cycles, while Li-Po batteries have a cycle life of between 300 to 500 charge/discharge cycles.

Another win for Li-Ion batteries


You must have heard tales of smartphones bursting into flames and causing some serious bodily harm. In most instances, mishandled Li-Ion batteries are the culprit behind such occurrences.

Li-ion battery are susceptible to combustion when overheated or overcharged. Battery manufacturers have to include a series of protection mechanisms to keep this from happening.

Li-Po batteries have an improved resistance to overheating and overcharging, an aspect that makes them less susceptible to combusting and therefore, are much safer.

A win for Li-Po batteries


Li-Ion batteries are thick, rigid and have a low level of flexibility. This makes the batteries in appropriate in the design of flexible smartphones concepts.

Li-Po batteries on the other hand, are lighter, thinner and have a flexible form factor. This aspect makes the Li-Po batteries perfect for flexible smartphones concepts.

Another win for Li-Po batteries.


Li-Po batteries are more expensive to manufacture when compared to Li-Ion batteries. Li-Po are only economical to manufacture when they are mass produced.

This is a win for Li-ion batteries.

Next: Stanford develops Next-gen battery; it takes just a minute to recharge

Kevin is a Passionate Technology Enthusiast and the Lead Writer at MobiTrends. He has been writing about Smartphones and Mobile Technology since 2012. Drop him your comments below :)