What is the Difference Between Lithium Ion and Lithium Polymer Batteries?

With improvements in technology, and a greater demand in a longer battery life, there has been a increase in demand for improved battery designs. In the past, consumer products relied on alkaline batteries, and they still do today. Recent years of innovation in technology increased the usage of lithium batteries.

Currently, there are two kinds of lithium batteries popular in consumer products: Lithium Ion and Lithium Polymer. As interesting and fancy as they sound, they both might be made from the same general material, Lithium, they both have some similarities and differences that make each of them unique and better over the other.

In general, lithium batteries were first made in 1912 to be one time use and weren't rechargeable. It wasn't until a few years later that they were redesigned to be rechargeable.

One of the main benefits of lithium type batteries compared to regular alkaline is the fact that they store a lot more energy and weigh a lot less. Not only that, there is the convenience of size.

What is the Difference Between Lithium Ion and Lithium Polymer?

Lithium Ion Batteries

Lithium Ion Battery

Lithium ion batteries weren't popularized until 1991 by Sony. Lithium Ion batteries have a low self-discharge rate, lower cost, but do decrease in quality overtime regardless of usage, and has no memory issues. Memory issues are apparent in batteries such as nickel-metal hydride. What memory issues do to batteries is they cause them to hold less charge/energy over time.

Lithium Polymer Batteries

Lithium Polymer Battery

Lithium polymer batteries are lower in energy density when compared to Lithium Ion batteries, but have a lower profile, somewhat flexible, lightweight, a bit more expensive to manufacture compared to Li-Ion, and does not have any standard sizes.

----------------------------------------------------------------

Sources

https://en.wikipedia.org/wiki/Lithium-ion_battery

http://batteryuniversity.com/learn/article/is_lithium_ion_the_ideal_battery


Leave a comment

Please note, comments must be approved before they are published