Comparison between two of the most popular batteries i.e Li-ion and LiPo batteries on various parameters.
Lithium-ion Battery vs Lithium-polymer Battery
In the below table, we covered all the parameters of both lithium-ion and lithium-Polymer battery.
| Parameters | Li-ion battery | Li-polymer battery |
| Usable voltage range | from 3V to 4.2V | From 3V to 4.2V |
| Energy density | High energy density | Low and decreased cycle count compared to Li-ion |
| Flexibility | Low | High |
| Weight | Relatively heavier | Light weight |
| Safety/Explosive risk | More volatile as compared to Li-Po | More safety. Less chances to explosion |
| Charging duration | Relatively longer charge | Shorter charge |
| Cost | Cheaper | Slightly expensive |
| Capacity | Relatively lower | same volume Li-Po batteries, capacity is around 2 times of Li-ion battery |
| Life span | Long | Long |
| Aging | Loses actual charging capacity over time | Retains charging capacity better than Li-ion |
| Temperature range usage | -20 to 60º C | -20 to 70º C |
| Impedance | <100 mΩ | <50 mΩ |
| Charge temperature | 0 to 40º C | 0 to 40º C |
| Storage temperature | -20 to 35º C | -20 to 35º C |
| Applications | Used in power backups/UPS, Mobile, Laptops, and other commonly used consumer electronic goods. Also used in Electric mobility and Energy Storage Systems | Mostly used i radio controller equipments and aircrafts,Mobile, laptops and other commonly used electronic products. Also, used in Electrical vehicles. |
Hope this article helps you to understand the actual difference between Lithium-ion and Lithium- Polymer battery.
Lithium-ion Battery
The most significant difference between lithium-ion and lithium-polymer batteries is the chemical electrolyte between their positive and negative electrodes. Both lithium-ion and lithium-polymer batteries have their pros and cons. Typically, the advantages of a lithium-ion are their high power density and lower cost than lithium-polymer battery. Lithium-ion batteries are incredibly efficient. Li-ion in a more flexible casing.
Lithium-ion batteries are inherently unstable, suffer from aging, and are potentially dangerous. As Li-ion batteries have become more popular in
Lithium-Polymer battery:
On the other hand, Li-Po batteries are generally robust and flexible. Especially when it comes to the size and shape of their build.
They are also lightweight, have an extremely low profile and have a lower chance of suffering from leaking electrolyte. But Li-Po batteries aren’t perfect as they are significantly more costly to manufacture and they do not the same energy density nor lifespan as a lithium-ion.