Detailed analysis of the benefits and shortcomings of polymer lithium batteries

Polymer lithium battery 1. Benefits: 1. Good safety performance. The polymer lithium battery uses aluminum-plastic soft packaging in the structure, which is different from the metal shell of the liquid battery. Once a safety hazard occurs, the liquid battery will simply explode, while the polymer battery The core will only blow up at best. 2. The thickness is small, it can be made thinner and ultra-thin, and the battery can be assembled into a credit card. Generally, liquid lithium batteries use the method of customizing the shell first, and then plugging the positive and negative electrodes. The thickness is below 3.6mm and there is a technical bottleneck. Polymer batteries do not have this problem. The thickness can be below 1mm, which meets the needs of current mobile phones. direction. 3. Lightweight, polymer electrolyte batteries do not require a metal shell as a maintenance package. The weight of the polymer battery is 40% lighter than the standard steel shell lithium battery of the same capacity, and 20% lighter than the aluminum shell battery. 4. Large-capacity polymer batteries have a capacity of 10-15% higher than that of steel shell batteries of the same standard and 5-10% higher than aluminum shell batteries. They have become the first choice for color screen mobile phones and MMS phones. The new color screen and MMS are currently on the market. Most mobile phones also use polymer batteries. 5. Small internal resistance. The internal resistance of polymer batteries is smaller than that of ordinary liquid batteries. At present, the internal resistance of domestic polymer batteries can even be less than 35m, which greatly reduces the self-consumption of the battery and extends the standby of the mobile phone. Time, it can completely reach the level of connecting with the world. This kind of polymer lithium battery that supports large discharge current is the ambition choice of remote control model, and it has become the most promising product to replace nickel-hydrogen battery. 6. The shape can be customized. The manufacturer does not need to be limited to the standard shape, and can be economically made into the appropriate size. Polymer batteries can add or reduce the thickness of the battery cell according to the needs of customers, and develop new battery cell types, which are cheap and have a short mold-opening cycle. Some can even be tailored to the shape of the mobile phone to make full use of the battery shell space and increase the battery. capacity. 7. Good discharge characteristics. Polymer batteries use colloidal electrolytes. Compared with liquid electrolytes, colloidal electrolytes have stable discharge characteristics and higher discharge channels. 8. Simple maintenance board planning. Because the polymer material is selected, the battery core does not catch fire or explode, and the battery itself has sufficient safety. Therefore, the maintenance circuit plan of the polymer battery can be considered to omit the PTC and fuse, and then save the battery cost. 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 are the uses of lithium battery caps?