LiPo Battery (Features, Types and Specifications)
If you are looking for the insightful analysis on the LiPo Batteries, this is the right article for you. It includes all the necessary details you need know before buying a LiPo Battery along with the guidelines regarding how to use it properly in order to get the optimum results from the LiPo Batteries.
This article will also elaborate the most commonly used types of LiPo Batteries, their technical specifications and the applications.
What is a LiPo Battery
If you happen to use a laptop, Mobile Phone, Radio or similar devices then you hopefully are familiar with the term Lithium-ion Batteries. If you care to increase the power of your electronic devices, you should probably give this article a good read because a LiPo Battery is what you are going to need in the coming days.
LiPo is the short form for two words – Lithium and Polymer. A LiPo Battery contains Lithium-ion and Polymer as a chemical solution. It is sometimes called as LIP Battery and Li-Poly Battery too.
It is a rechargeable battery which is its extensive benefit and it contains the technology of Lithium-ions. These batteries are lighter in weight because a soft material is used in them and thus they are not much rigid to hold.
Developments in Manufacturing a LiPo Battery
As most of the battery lovers already know that most batteries contain liquid electrolyte inside them, the LiPo battery is a little different from them. LiPo battery uses Polymer electrolyte rather than using a liquid. This is a developing technology hence used successfully in the LiPo Batteries.
Still this technology is under massive research and needs to be developed further to reach perfection. Once developed, we can expect a positive change in LiPo batteries and their performance. Using this technology, the users expected a finely slim and soft battery with the low risk of liquid spill due to polymer electrolytes.
With the passage of time, as the technology and the research advanced, few OEMs started to manufacture the batteries using Lithium ions and the Polymer. It proved to be more successful in the market and was commercially accepted. Hence, this combination of Lithium-ion and the Polymer started gaining attention in the battery world.
Polymer is not used as an electrolyte rather it is used as the container in which the systems and the operations of the battery are carried out. The liquid is still used in this battery and will be completely replaced in the days to come but this liquid is thickened to turn it into the paste or gel which is sufficient to do its task.
As the electrochemistry of these cells or batteries match the Lithium ion batteries, still the LiPo batteries stay apart and have their separate reputation and identity. These batteries are widely used in the electronic devices all over the globe in daily life.
Design of a LiPo Battery
The electrolyte used in the LiPo Batteries can be in any of the forms like gel form, porous form or paste form but the LiPo is the terminology which was also being used where Polymer and the Lithium-ions were used together regardless of the fact that the liquid or gel is used inside them. They started to be used in the battery world in the late 1990s.
Roles of Lithium and Polymer in a LiPo Battery
Most of the battery users would be aware of the fact there four primary sections of every battery – Two electrodes (Positive and Negative, one electrolyte and a Separator. The roles of Lithium and Polymer may be different but related to each other.
Role of Polymer
The separator itself may possibly be made up of Polymer in a LiPo Battery and it is mostly in a porous form. Whether or not a battery contains a liquid or dry electrolyte, the polymer may still be there as a separator. However, the quantity of the Polymer used in the separator may depend upon the manufacturers. It is generally in a small proportion. The role of Polymer in such batteries is to ensure the smooth transfer of electricity in the battery system. Therefore, the transfer of the current very well depends upon the Polymer in a LiPo Battery.
Role of Lithium
Lithium or the Lithium-ions are responsible for the charging and discharging of a LiPo Battery due to the flow of ions from Positive to negative electrode and vice versa.
Working principle of a LiPo Battery
The working principle of a LiPo battery is not different than a normal rechargeable battery. As already told in our article CR123 Batteries, Lithium ions move from positive to negative electrode when the battery is being charged and from negative to positive electrode when the battery is discharging itself by being used in an electronic device or even when put alone.
Types of a LiPo Battery
LiPo Batteries may be divided into different types depending upon the number of the cells used in them. Higher the voltage of a LiPo Battery would mean that higher number of cells are used in it. For example:
- 1S LiPo Battery: 1 cell LiPo battery with a voltage of around 3.7V.
- 2S LiPo Battery: 2 cells LiPo Battery with a voltage of around 7.4V.
- 3S LiPo Battery: 3 cells LiPo Battery with a voltage of around 11.1V.
- 4S LiPo Battery: 4 cells LiPo Battery with a voltage of around 14.8V and so on…!!
The daily life electronic applications use LiPo Batteries to provide extended power to the devices like:
- Electric vehicles like Electronic Wheel Chairs
- Personal Computers
- Mobile Phones
- Electronic Notebooks
- Other Personal Electronics
LiPo Batteries are beneficial for both the users and the manufacturers. Manufacturers can easily manufacture the batteries in any shape for any device due to the non rigidness of LiPo cells used in these batteries.
Users have an additional benefit of Self Discharging tendency of a LiPo Battery which is quite bearable – 3 % to 7% discharging per month if unused.