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

1. The basic difference is the raw material, which is the total source of the various differences between the two. Polymer battery refers to the use of polymer materials in at least one of the three major components of the positive electrode, the negative electrode or the electrolyte. Macromolecules mean large molecular weights. The corresponding concept is small molecules. Macromolecules have high strength, high toughness and high elasticity. The polymer materials currently developed for polymer batteries are mainly used for positive electrodes and electrolytes. ①In addition to the recovery of inorganic compounds of lithium-ion batteries, the positive material of polymer batteries can also recover conductive high-molecular polymers; ②The electrolytes of polymer batteries include polymer electrolytes (solid or colloidal) and organic electrolytes, which are used in lithium-ion batteries. Electrolyte (liquid or colloid) 2. In terms of shaping, polymer batteries can be thinned, arbitrarily shaped and arbitrarily shaped, because the electrolyte can be solid or colloidal rather than liquid, while lithium-ion batteries are recycled For the electrolyte, a robust shell is required as a secondary package to contain the electrolyte. Therefore, this also adds a part of the weight of lithium-ion batteries. 3. In terms of safety: most of the current polymers are soft-pack batteries, and the aluminum plastic film is recycled as the outer shell. When the organic electrolyte is recycled inside, the liquid will not explode even if the liquid is hot, because the aluminum plastic film polymer battery recycles solid or colloidal state. There is no leakage, but a natural separation. However, any work is not absolute. If the instantaneous current is large enough to produce a short circuit, it is not impossible for the battery to spontaneously ignite or burst. The safety of mobile phones and computers are mostly caused by this environment. 4. Battery cell voltage: Because polymer batteries recycle high polymer materials, they can be made into a multilayer combination in the cell to reach a high voltage, while the nominal capacity of the lithium ion battery cell is 3.6V, if you want to reach a high voltage in actual use Voltage, multiple cells must be connected in series to form an aspirational high-voltage platform. 5. Conductivity: The ionic conductivity of the solid electrolyte of polymer batteries is low. At present, it is important to add some additives to make it a gel electrolyte to improve the conductivity. This is just a new addition of ionic conductivity, unlike the conductivity of lithium-ion batteries to maintain a constant value, and will not be affected by the quality of the help materials. 6. Capacity: The capacity of polymer batteries has not been effectively promoted, and compared with standard capacity lithium-ion batteries, it has been eliminated. 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: Do you know what to pay attention to when charging lithium-ion battery electric vehicles for the first time?