Frequesntly Asked Questions

If the answers did not solve your queries, please go to Contact Us page and send your questions by completing the form.

What are the advantages and disadvantages of Lithium Polymer battery?

Lithium-ion Polymer batteries differ from Lithium-ion batteries only in construction, they can be made by same chemistry, so they have almost same performance. However, Lithium Polymer has its own characteristics:


Lithium Polymer battery advantages:

Better safety performance - Lithium-ion polymer batteries with aluminum composite flexible packaging in the structure, differ from liquid metal case of batteries, in the event of a safety hazard, liquid batteries easy explosion, but Lithium polymer battery mostly can be swelled to avoid explosion.

Flexible sizes and diversified shape - Lithium-ion polymer cells can be ultra-thin with 1mm thickness and assemble into a credit card. Also they can be curved, rounded or other special structure.

Customizable - There is no standard Lithium-ion polymer cells like Lithium-ion 18650, 26650, 14500..., but they can be built with any sizes to fit into your application. And the low cost for developing a new model.

There are also other advantages same as Lithium-ion battery:

High energy density

Small and light

Low self-discharge

Non memory effect

Quick charging

High open-circuit voltage

Long service life

Low maintenance

No requirement for priming


Lithium Polymer battery disadvantages:

* Swelling or meteorism - Because of special structure and soft packaging, Lithium Polymer cells has a probabilistic of swelling in about 3‰, the cell should be shielded once swelled.

* Higher cost than Lithium-ion - As there is no full-automatic equipment for mass production, the production cost of Lithium Polymer battery is much higher than Lithium-ion cells.

Other disadvantages are same as Lithium-ion battery:

* Protection required

* Aging effect

* Transportation problems

* Deep discharge

* Safety concerns

* Sensitivity to high temperature