Which Type Of Battery Is Better: Li-Ion vs Li polymer?With the continuous advancement of technology, more and more devices in our lives require battery power. Among the various types of batteries, lithium-ion (Li-Ion) and lithium polymer (Li-Polymer) batteries are the most common choices. Is li polymer battery good? I believe so many people are curious about this question. And which type of battery is better? Let's find out.
First, let's understand the difference between lithium polymer batteries and lithium-ion batteries. The positive and negative electrode materials used in lithium polymer batteries are the same as those used in liquid lithium-ion batteries. The positive electrode materials include lithium cobalt oxide, lithium manganese oxide, ternary materials, and lithium iron phosphate materials, while the negative electrode is graphite. The working principle of the batteries is also essentially the same. The main difference lies in the electrolyte. Liquid lithium-ion batteries use liquid electrolytes, while lithium polymer batteries use solid polymer electrolytes. This polymer can be solid state or colloidal state with most batteries currently using polymer gel electrolytes.
So, which type of battery is better? The comparison between Li-ion battery and Li-polymer battery is shown as followings.
1.Price
When it comes to compare the cost of lithium-ion and lithium polymer batteries, li-ion batteries have the advantage. The price of a lithium-ion battery cost starts around USD 3 per piece.
Whereas, the price of a lithium polymer battery starts at approximately USD 9 per piece. The price of lithium polymer battery is 3 times of the lithium-ion one.
2.Versatility
Because of its character, lithium polymer batteries can be different shapes and sizes. Besides, lithium-polymer batteries can be molded by many ways and applied in multiple products. Therefore, lithium-polymer batteries are more versatile than lithium-ion batteries.
3.High power
When charging lithium ion batteries, you can feel the lithium ion battery working powerfully. Lithium-ion batteries are more effective and prevalent than lithium-polymer batteries. Both lithium-ion and lithium-polymer batteries are suitable for high power. But lithium-ion batteries has higher power levels so that they can fit for massive usage.
4.Solid and light
Lithium-polymer batteries are highly prevalent in terms of their rigid or colloidal nature and the character of being lightweight than lithium-ion batteries. Due to their solid state, lithium-polymer batteries doesn't have the risk of leakage.
5.Suitability and portability
Although lithium-ion and lithium-polymer batteries are both compact. Lithium-poly batteries are more portable as they are available to hold a small and sleek design.
When it comes to suitability, though lithium-ion and lithium-polymer batteries are both fitting and effective in various ways. There’s difference between lithium-ion and lithium-poly batteries. Lithium-ion is suitable for electric transport, but lithium-poly is suitable for mobile phones.
6.Safety
The safety of a battery is a primary concern for many consumers and producers. When comparing lithium-ion and lithium-polymer batteries, the internal construction of li-ion batteries are likely to collapse in extreme circumstances because the two contrasting elements in these batteries can quickly meet.
On the contrary, lithium polymer batteries are pretty safe compared to lithium-ion batteries as their solid or colloidal electrolyte is not likely to leak.
7.Lifespan
The lifespan of lithium-ion batteries is relatively higher than that of lithium polymer batteries, and there is no retention impact in the lithium-ion batteries. However, lithium-ion batteries are likely to lose their storage capacity as they grow old.
8.Self-discharge
The lithium-polymer battery life circle is shorter, and these batteries save less energy than the equivalent-sized lithium-ion batteries. However, the lithium-polymer batteries are more secure, hold fast charging, and possess a low self-discharge level. This implies that these lithium-polymer batteries would not drain off much if you do not utilize them for quite some time.
While both lithium-ion and lithium-polymer batteries come with their own advantages and disadvantages, if you prefer a battery that presents adequate power without caring about the high delivery time, you can opt for lithium-polymer batteries. This is because lithium-polymer batteries hold reduced storage space, though they can render enough power.
On the other hand, if you need power for a long time with a low delivery time, you can opt for lithium-ion batteries as they carry a higher charge and run for an extended time.
As a conclusion, the topic on Which type of battery is better: Li-Ion vs Li polymer is not an absolute answer. Which type of battery better depends your own demand. Ufine New Energy, a China battery company, focuses on research and develop lithium-ion and lithium polymer batteries. Its products including battery 3.7v、high voltage battery and lifepo4 lithium batteries have high quality and excellent performance through different kind tests. If this essay strike your fancy, you could follow our official website www.gdufinebattery.com and learn more information for lithium batteries.