Do you know the difference between polymer battery and lithium battery?

1. The fundamental difference is the raw material, which is the total source of the different performance of the two. Polymer battery refers to the use of polymer materials in at least one of the three major components: positive electrode, negative electrode or electrolyte. Macromolecule means high molecular weight, and the corresponding concept is small molecule. Macromolecule has 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 inorganic compound of the lithium battery, the positive electrode material of the polymer battery can also use the conductive polymer; ②The electrolyte of the polymer battery includes the polymer electrolyte (solid or colloidal) and the organic electrolyte, and the lithium battery uses the electrolyte. (Liquid or gel) 2. The plastic-differential polymer battery can be thinned, arbitrarily shaped and arbitrarily shaped. The reason is that its electrolyte can be solid or colloidal rather than liquid. Lithium batteries use electrolyte, which requires one The sturdy housing serves as a secondary package to contain the electrolyte. Therefore, this also makes the lithium battery a new part of the weight. 3. In terms of safety, most of the current polymers are soft-packed batteries, using aluminum plastic film as the outer shell. When organic electrolytes are used inside, they will not explode even if the liquid is hot, because the aluminum plastic film polymer battery uses solid or colloidal No leakage, but spontaneous rupture. But nothing is absolute. If the instantaneous current is large enough and a short circuit occurs, it is not impossible for the battery to spontaneously ignite or burst. The safety accidents of mobile phones and tablet computers are mostly caused by this situation. 4. Battery cell voltage Since polymer batteries use polymer materials, they can be made into a multi-layer combination to achieve high voltage, while the nominal capacity of lithium battery cells is 3.6V. If you want to achieve high voltage in actual use, A number of batteries must be connected in series to form an ideal high-voltage working platform. If you compare polymer batteries and lithium batteries with the above characteristics, the conclusion is certain. However, the application of lithium batteries still dominates the market. This shows that lithium batteries also have relative advantages. We will continue to compare. 5. The solid electrolyte ion conductivity of conductive 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 batteries to maintain a stable value, and will not be affected by the quality of auxiliary materials. 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 is the important reason for the fire of the lithium battery pack?