Daegu Gyeongbuk Institute of Science and Technology
Question
Asked 8 July 2019
What is the difference between lithium ion and lithium polymer battery?
Lithium ion and lithium polymer battery charging and discharging profile was found to be same. Then what is the major difference between both battery?
Most recent answer
In case on battery production, the difference is on fabricated-cell used. Lithium Polymer used special polymer to coating and the order of the cell is different. However, since only lithium ion intercalation happened in the cell, then it's supposed to be the same as lithium ion battery.
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Popular answers (1)
Aalto University
Dear Ramesh,
The biggest difference between the two is only used within the type of electrolyte a Li-ion battery is a liquid electrolyte , and Li-ion polymer batteries instead places the solid polymer electrolyte , the polymer may be a solid, may be a semi-solid (gel).
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All Answers (4)
Aalto University
Dear Ramesh,
The biggest difference between the two is only used within the type of electrolyte a Li-ion battery is a liquid electrolyte , and Li-ion polymer batteries instead places the solid polymer electrolyte , the polymer may be a solid, may be a semi-solid (gel).
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University of Cologne
A Li-ion battery is an anorganic battery whereas a lithium polymer battery consists of one organic electrode (the polymer) besides the Li-electrode.
I can recommend this paper of Schubert et al. for deeper information: Chem. Rev.2016, 116, 16, 9438-9484
Gujarat Arts and Science College, Ahmedabad, Gujarat, INDIA. (Government College, Pincode - 380006.)
Dear Ramesh Murthy,
The most significant difference between lithium-ion and lithium-polymer batteries is the chemical electrolyte between their positive and negative electrodes.
- Lithium ion batteries: They have high energy density and cost less than lithium polymer. They are essentially a group of very rigid electricity generating compartments, which 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.
- Lithium polymer batteries: They are light weight and have improved safety. However their cost is high (30% average) as compared to lithium ion. Also the the energy density of Li-Polymer battery compared to Li-Ion Batteries is quite less. In Li-Po batteries it isn’t a liquid. Instead, Li-Po technology uses one of three forms: a dry solid, which was largely phased out during the prototype years of lithium polymer batteries; a porous chemical compound; or, a gel-like electrolyte. The most popular among these is the last one, which is the type of battery you’ll find in newer laptop computers and electric cars. The catch is that plenty of companies are not actually selling you a true Li-Po battery, instead it’s a lithium-ion polymer battery, or a Li-ion in a more flexible casing. Lithium-polymer batteries are generally robust and flexible, especially when it comes to the size and shape of their build. They have an extremely low profile, and have a lower chance of suffering from leaking electrolyte. But they are significantly more costly to manufacture, and they do not they have the same energy density nor lifespan as a lithium-ion.
I hope the information will help you.
With Best Wishes,
Samir G. Pandya
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Daegu Gyeongbuk Institute of Science and Technology
In case on battery production, the difference is on fabricated-cell used. Lithium Polymer used special polymer to coating and the order of the cell is different. However, since only lithium ion intercalation happened in the cell, then it's supposed to be the same as lithium ion battery.
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