Difference between Lithium Ion and Lithium Polymer battery.
                     Differences between 
Lithium Ion and 
Lithium Polymer 
battery
Lithium ion battery
• A lithium-ion battery is a rechargeable battery 
format that first grew in popularity thanks to their 
adoption by major electronics companies in the 
early 1990s. They are essentially a group of very 
rigid electricity generating compartments.
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Li-ion battery
• It consists of three pieces: a positive electrode; a 
negative electrode; and an electrolyte, or liquid 
chemical compound between them. Most lithium-ion 
batteries, unlike more traditional ones, also include an 
electronic controller, which regulates power and 
discharge flows so your battery doesn’t overheat or 
explode.
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Lithiubmat-tpeorylymer 
• Lithium-polymer batteries can be dated back to 
the 1970’s. Their first design included a dry solid 
polymer electrolyte that resembled a plastic film. 
Therefore, this type of battery can result in credit 
card thin designs while still holding relatively 
good battery life.
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Li-Pol battery
• Lithium-polymer batteries can be dated back to 
the 1970’s. Their first design included a dry solid 
polymer electrolyte that resembled a plastic film. 
Therefore, this type of battery can result in credit 
card thin designs while still holding relatively 
good battery life.
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Manufacturing
• Manufacturing of traditional Li ion versus Li poly is 
vastly different. For Li ion, a vast array of expensive 
automated equipment and tooling is required to 
produce the cells. The cylindrical cell configuration 
has become the workhorse of the industry, being 
the most commonly used.
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Differences
• Both lithium-ion and lithium-polymer batteries 
have their pros and cons. Typically, the 
advantages of a lithium-ion is their high power 
density, lack of what’s called the memory effect 
(when batteries become harder to charge over 
time), and their significantly lower cost than 
lithium-polymer.
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Issuebs awttiethr yLi-ion 
• Lithium-ion batteries are inherently unstable, suffer 
from aging, and are potentially dangerous. If the 
barrier that separates the positive and negative 
electrode is ever breached, the chemical reaction can 
cause fire. As Li-ion batteries have become more 
popular in consumer electronics, businesses have 
tried to lower costs by cutting corners.
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Other differences
• Lithium-polymer batteries, on the other hand, 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. 
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Conclusion
Li-poly offers several advantages over Li-ion in 
portable applications as it is very safe, excellent 
thermal stability, light weight, great power density, 
better low-temperature performance, limited voltage 
depression, and higher capacity delivery.
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