Which is better lithium-ion battery or lithium polymer battery?

Before moving to the comparison of the lithium-ion and the lithium-polymer battery, we have to first understand, what is Lithium-ion and Lithium-polymer battery.

What is a Lithium-Ion Battery?

lithium-ion batteries are a family of rechargeable batteries having high energy density and are commonly used in consumer electronics. Unlike the disposable lithium primary battery, a LIB uses intercalated lithium compound instead of metallic lithium as its electrode.Usually, LIBs are significantly lighter than other kinds of rechargeable batteries of similar size.
Lithium-Ion Batteries are heavily used in portable electronics.
Lithium ions move from the negative electrode (anode) to the positive electrode (cathode) when a Lithium-Ion Batteries is discharging (cathode). Lithium ions move in the opposite direction when a LIB is charging, the negative electrode becomes the cathode and the positive electrode becomes the anode.

 

lipo-battery

Advantages of Lithium-Ion batteries
A typical LIB can store 150 watt-hours of electricity per kg of battery, compared to 100 watt-hours in a nickel-metal hydride (NiMH) battery and only 25 watt-hours in a lithium-ion battery.

Disadvantages of Lithium-ion Batteries
The LIBs start to degrade the moment they leave the factory. They usually last for only two to three years from the date of manufacture, regardless of whether used or unused.

What is a lithium-polymer battery?


A lithium-polymer (LiPo, LIP, or Li-Poly) battery is a rechargeable battery with a soft polymer casing and a soft external "pouch" for the lithium-ion battery inside. It could also be a lithium-ion battery with a gelled polymer as the electrolyte. However, the term is most commonly used to describe a type of lithium-ion battery that comes in a pouch. The more accurate name for this type of battery is lithium-ion polymer battery. are lighter and more flexible than other kinds of lithium-ion batteries because of their soft shells, allowing them to be used in mobile and other electronic devices, as well as in remote control vehicles.

The lithium-polymer batteries(Lipo) are most commonly used in mobile devices, power banks, very thin laptop computers, portable media players, wireless controllers for video game consoles, wireless PC peripherals, electronic cigarettes, and other applications where small form factors are considered.

Advantages of the LiPo battery
It offers high specific energy compared to other lithium batteries.
Disadvantages of LiPo Battery
It supports less recharge life which is about 300 to 400 cycles.
Comparison between Lithium-Ion and Lithium-Polymer Batteries

 


Post time: Feb-24-2023