Comparison of the advantages and disadvantages of lithium batteries and polymer lithium batteries

The advantages of lithium batteries depend on the high output power of charging and discharging. Under the same working voltage, the limit current exceeds the polymer lithium battery cell. In other words, the lithium battery has good output characteristics and high output power, so it can be used in some machinery and equipment that must have a large amount of current in an instant, in order to ensure reliability. The defects of lithium batteries depend on their small volume, generally around 800MAH. In addition, lithium batteries are unstable under short-circuit failures and extreme external natural environments, and are very prone to explosions. When a lithium battery explodes due to short-circuit failures, the plastic shell on its surface is destructive. The advantages of polymer batteries depend on strong endurance and large volume. The volume of the polymer lithium battery of the same volume is 20% larger than that of the lithium battery, and it has a strong endurance under the condition of stable current output. In addition, the surface layer of the polymer lithium battery is used as the soft raw material for the outer box. If the short-circuit fault causes the battery to bulge, it is not easy to explode and always cracks, so it is safe. Polymer lithium batteries should be more stable. Why are polymer lithium batteries more stable than lithium batteries? This should start from the structure of the two. Lithium battery is a kind of rechargeable lithium battery, which uses lithium battery to move between positive stage and negative stage. During the whole process of battery charging, Li is intercalated and deintercalated between the two levels: when the battery is charged, Li is deintercalated from the positive level, according to the lithium battery electrolyte is placed in the negative level, and the negative level is in the lithium-rich condition; The time is the other way around. At this stage, there are two kinds of raw materials for processing and manufacturing lithium batteries, one is lithium cobalt oxide and the other is lithium iron phosphate. At the current stage, the cathode materials for lithium batteries on the market are generally lithium cobalt oxide, so lithium batteries are also called lithium cobalt oxide batteries. In addition, there is also a lithium battery made of lithium iron phosphate. Lithium iron phosphate has bright physical properties, short charging cycle for circulatory system batteries, easy to swell, and low operating characteristics. Consumer electronic devices generally do not use lithium batteries made of lithium iron phosphate. As everyone knows, rechargeable batteries made of lithium cobalt oxide have a stable structure, have a higher specific volume than lithium iron phosphate, and are more expensive than lithium iron phosphate but have a higher safety factor. Therefore, most consumer electronic devices choose lithium cobalt oxide as Raw material for rechargeable batteries. Before mobile chargers became popular, the lithium battery that everyone could often touch should be a laptop battery. Perhaps you can think that laptop batteries are rectangular, while lithium batteries are cylindrical. How do the two communicate? The answer is how the power circuit is connected (series or series). This is what we usually call a 6-cell rechargeable battery. In the case of buying a laptop, the salesperson will most likely tell you to use genuine laptop batteries as much as possible, and never buy fake rechargeable batteries. However, the price of a genuine laptop battery can be several thousand yuan, and the counterfeit rechargeable battery with the same capacitor is likely to be one or two hundred yuan, the price difference is huge. What are the differences between the two? The answer depends on the design of the rechargeable battery and power circuit. The cost of a good rechargeable battery is at least twice the price of a bad battery. The double price is to better obtain a longer service life and safer rechargeable battery structure. In addition, the design method will carefully design methods to maintain the power supply circuit to ensure the safety factor of the rechargeable battery to the greatest extent. Counterfeit processors don't do that. With the help of cost fees, they minimize the cost of products without causing more serious quality damage, sell them at a lower price, and gain market share. 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: How to use the lithium battery of the sweeping robot correctly?