Which is better, solid-state lithium ion battery or liquid lithium ion battery?

Wholesale lithium-ion batteries Solid lithium-ion batteries or liquid lithium-ion batteries are better. According to different electrolyte materials used, lithium-ion batteries can be divided into liquid lithium-ion batteries and solid polymer lithium-ion batteries. The polymer lithium ion battery and liquid lithium ion use the same positive and negative materials, and the working principle of the battery is also the same. The important difference between liquid lithium ion batteries and solid polymer lithium ion batteries is the electrolyte. Lithium-ion batteries use liquid electrolytes; polymer lithium-ion batteries are replaced by solid polymer electrolytes. This polymer can be dry or colloidal. At present, most polymers use colloidal electrolytes. Polymer lithium ion batteries can be divided into three categories: (1) Solid electrolyte lithium ion batteries. The electrolyte is a mixture of polymer and salt. The battery has low ionic conductivity at room temperature and is suitable for use at high temperatures. (2) Gel polymer electrolyte lithium ion battery. That is, additives such as plasticizers are added to the solid polymer electrolyte to increase the ionic conductivity, so that the battery can be used at room temperature. (3) Polymer anode material lithium ion battery. Using conductive polymer as the cathode material, its energy is three times that of existing lithium-ion batteries (the latest generation of lithium-ion batteries). Characteristics of polymer lithium-ion batteries: 1. Solid electrolyte replaces liquid electrolyte, 2. Lithium ion anode material replaces carbon anode material. 3. The steel shell and aluminum shell are replaced by aluminum-plastic composite film. 4. Compared with liquid lithium ion batteries, polymer lithium ion batteries have the advantages of thinness, any area, and any shape, and will not cause safety problems such as leakage, combustion and explosion. Therefore, the aluminum-plastic composite film can be used to make the battery shell, thereby increasing the specific capacity of the entire battery; 5. Because its outer packaging (compared with steel and aluminum) is very light, polymer lithium ion batteries can also be used as cathode materials, and its quality The energy ratio will be 20% to 50% higher than that of current liquid lithium-ion batteries. 6. In addition, compared with lithium-ion batteries, the operating voltage and cycle life of polymer lithium-ion batteries have also been improved. Based on these advantages, polymer lithium-ion batteries are called next-generation ultra-thin lithium-ion batteries. 7. The battery protection circuit is relatively simple. Disadvantages of polymer lithium ion batteries: 1. If the polymer lithium ion battery is made into a battery with a thickness of more than 5mm, its cost and other advantages will not exist. However, the traditional lithium-ion battery manufacturing technology has not yet matured. 2. Since polymer lithium ion batteries are generally made into ultra-thin soft bags, their durability is extremely poor and their mechanical strength is extremely low. 3. Poor battery interchangeability. Since the polymer lithium-ion battery is customized according to the size of the buyer (product manufacturer), it is not universal, so it is more troublesome to replace, and the welding requirements are also relatively high. 4. Poor overcharge and overdischarge capability, once it happens, the battery will be damaged. Compared with lithium iron phosphate batteries, its practical application is very fragile. 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: Lithium-ion battery compared with lead-acid battery