Advantages of Li-Po battery：
(1)High operating voltage：
Li-Po battery single cell operating voltage up to 3. 6v ~ 3.8v which is much higher than NiCd battery and NiMH voltage.
(2)High capacity density：
Li-Po capacity density is 1.5 ~ 2.5 times that of NiMH or NiCd batteries, or higher.
Although Li-Po batteries are placed for a long time, its capacity loss is small.
(4)No Memory Effect:
Li-Po batteries do not need to empty the remaining power before charging, easy to use. It is a common characteristic in Li-ion batteries.
(5)Good Safety Performance:
Li-Po batteries in the structure of the aluminum-plastic soft packaging, as opposed to the metal shell of the liquid battery cells. In the event of a safety hazard, liquid cells are prone to explosion, while polymer cells will at most only gas drum.
(6)More thinner & lighter
Li-Po batteries are ultra-thin, the battery can be assembled into the credit card. Ordinary liquid lithium using a custom shell first, then plug the positive and negative materials, the thickness to 3.6mm below the technical bottleneck. Polymer cells do not have this problem, the thickness can be achieved below 1mm, in line with the direction of the current demand for cell phones.
Lithium-ion batteries use polymer electrolytes, so there is no need for a metal casing to protect the outer packaging. In terms of weight, the polymer battery is 40 percent lighter than a steel-encased lithium battery of the same size, and 20 percent lighter than an aluminum-encased battery.
In the case of the same size specifications, the capacity of lithium polymer battery is 10 to 15% higher than that of steel shell battery, and 5 to 10% higher than that of aluminum shell battery. Lithium-polymer batteries have become the preferred choice for smart-phone manufacturers. Most of the new smart-phones on the market today also use polymer batteries.
(9)Small Internal Resistance:
the internal resistance of Li-Po battery cells is smaller than the general liquid cells. At present, the internal resistance of domestic polymer cells can even do below 35mΩ. Small internal resistance greatly reduces the self-consumption of the battery, extending the standby time of the phone. Such a small internal resistance can already reach the international level. This kind of polymer lithium battery that supports large discharge current is ideal for remote control models, becoming the most promising alternative to NiMH batteries.
(10)Shape Can Be Customized:
manufacturers do not have to be limited to the standard shape, able to make the right size. Li-polymer batteries can increase or decrease the thickness of the cells according to demand. In addition, Li-polymer batteries develop new cell models with cheap prices and short open-mold cycles. It can even be tailored to the shape of the device to make full use of the battery casing space and enhance the battery capacity.
(11)Good Discharge Characteristics:
Li-polymer batteries use colloidal electrolyte. Compared with liquid electrolyte, colloidal electrolyte has smooth discharging characteristics and higher discharging platform.
(12)Simple Design of Protection Plate:
Because of the use of polymer materials, Li-polymer battery cells do not catch fire and do not explode. The cell itself has enough safety, so the protection circuit design of polymer battery can consider omitting PTC and fuse, thus saving battery cost.
Want More Details: Download our battery design ebook.
Lithium Battery Design Design Ebook Download(2M, 20 pages, PDF)