1.Different Raw Materials
The electrolyte in lithium-ion batteries is liquid or colloid. The electrolytes in polymer lithium batteries include polymer electrolytes (solid or colloidal) and organic electrolytes.
2.Different Security
Li-ion batteries are generally made of steel shells, which are easy to explode in high temperature and high pressure environments. Li-polymer batteries use aluminum-plastic film as shells. When organic electrolytes are used inside, even if the liquid is very hot, it will not explode. Greenbatt pouch cell have aluminum-plastic film, which has higher security for electric cars.
3.Different Shape
Polymer batteries can be very thin and can vary in size and shape. Because li-polymer battery electrolytes can be solid or colloidal rather than liquid. Li-ion batteries use liquid electrolytes and require a solid case as a secondary package to hold the electrolyte.
4.Difference in Cell Voltage
Since the polymer battery uses polymer materials, it can be made into a multi-layer combination in the battery core to achieve high voltage. The nominal capacity of lithium battery cells is 3.6V or 3.2V. LiFePO4 cell is 3.2V, NMC cell is 3.65V. In order to achieve high voltage in practical applications, multiple cells need to be connected in series to form an ideal high-voltage working platform.
5.Different Manufacturing Process
The thinner the polymer battery, the better for production. The thicker the lithium battery, the better for production, which makes the lithium battery has more application area.
6.Capacity
The capacity of li polymer batteries has not been effectively improved, and it has been reduced compared with standard capacity lithium batteries. Usually for li-ion batteries, capacity has 5Ah, 10Ah, 30Ah, 50Ah, 70Ah and 100Ah.
7.Price
Price determines market share. At present, the price of li polymer batteries is generally higher than that of li ion batteries.
