What are the advantages and disadvantages of polymer lithium-ion battery cells

Advantages 1. High safety: It cannot be denied that, relatively speaking, polymer batteries are safer than 18650 batteries, or the dangerous damage is not so great. Generally speaking, polymer batteries only have bulging, rupture and burning, and no explosion occurs. Directly destructive. 2. Larger capacity: Compared with ordinary batteries, the polymer has a relatively large capacity, with a gram capacity of up to 100~200mAh/g. 3. Flexible appearance: Because the polymer is packaged in aluminum film and has no fixed shape, it can be made into flat batteries, or customized batteries of different shapes according to different customers' requirements, so as to meet different needs very flexibly. 4. Fast charging speed: Compared with other battery types, polymer batteries have a faster charging speed and relatively stable discharge current. 5. The weight is relatively light: because of the use of hard shell protection, the polymer battery is lighter than the 18650 battery. Disadvantages 1. High cost: Compared with other batteries, the cost of polymer batteries is almost the highest, and it is difficult to reduce the concentration on the electrolyte. The high cost has become an important factor restricting the development of polymer batteries. 2. There is no fixed model: Due to the variability of the shape of the polymer lithium ion battery cell, although it can better meet the needs of the market, it also leads to no unified model and no possibility of replacement, thus losing the market. Persistent. 3. Severe copycats: As the polymer battery market has a bright future, but the manufacturing cost is very high, there are many 18650 battery flats on the market that turn into polymer batteries, and a copycat crisis once appeared. 4. Low energy density: Compared with other lithium ion batteries, the energy density of polymer lithium ion battery cells is relatively low when polymer lithium ion battery manufacturers do lithium battery cell design, which has led many manufacturers to increase capacity And desperately compress security protection. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: A brief introduction to fuel-powered battery vehicles