What is the difference between polymer lithium batteries and ordinary lithium-ion batteries?

Li-polymer battery (Li-polymer, also known as polymer lithium ion battery): It has many obvious advantages such as high energy density, smaller size, ultra-thinness, light weight, high safety and low cost, etc. It is a kind of New battery. In terms of shape, lithium polymer batteries have ultra-thin characteristics, and can be made into batteries of any shape and capacity according to the requirements of various products. The minimum thickness that this type of battery can reach can reach 0.5mum. Ordinary lithium ion battery 1. Packaging appearance Polymer battery core: soft aluminum-plastic composite film. Ordinary lithium-ion battery: hard aluminum shell or steel shell (recently, there are also fish-eye mixed beads changed to soft packaging, but the battery-sensing shell is soft and easy to bend). 2. Electrolyte polymer batteries: semi-solid polymer. Ordinary lithium ion battery: liquid conductive liquid. 3. Performance polymer batteries: stable discharge, high efficiency, and low internal resistance. Ordinary lithium-ion battery: Gas is prone to appear during charging, explosive, and internal resistance is large. The capacity of a lithium-ion battery with the same volume is about 2-3 times that of a polymer. 4. Safety performance polymer batteries: over-current and over-voltage protection devices. Ordinary lithium-ion battery: no overcurrent and overvoltage protection devices. 5. Life-span polymer batteries: about 500 charge-discharge cycles. Ordinary lithium ion battery: The number of charge and discharge cycles is about 300. The characteristics of lithium polymer batteries are as follows: 1. There is no battery leakage problem, the battery does not contain liquid electrolyte inside, and uses colloidal solids. 2. Can be made into a thin battery: with a capacity of 3.6V400mAh, its thickness can be as thin as 0.5mm. 3. The battery can be designed into a variety of shapes. 4. The battery can be bent and deformed: the polymer battery can be bent up to about 90%. 5. Can be made into a single high voltage: the battery with liquid electrolyte can only obtain high voltage by connecting several batteries in series, while the polymer battery can be made into a multi-layer combination in a single battery to achieve high voltage because there is no liquid itself. 6. The capacity will be twice as high as a lithium-ion battery of the same size. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are dry batteries and lithium-ion batteries? What is the difference between them?