Which is better, lithium polymer battery or lithium battery

Which is better, lithium polymer battery or lithium battery? Lithium polymer battery is good. Polymer lithium battery is an upgraded product of lithium battery. Compared with the current popular lithium battery, it has the advantages of large capacity, small size (thin), safety (no explosion) and so on. However, since the upgrade of the entire industrial chain takes a certain amount of time and the cost is relatively high, it is only used for high-end digital products (ultra-thin notebooks, etc.). The advantages of polymer lithium batteries include the following aspects: 1. The operating voltage of polymer lithium batteries can reach 3,6v~3,8v, which is much higher than that of nickel-hydrogen batteries and nickel-cadmium batteries. 2. The capacity density of polymer lithium battery is relatively large, and its capacity density is 1.5~2.5 times that of nickel-hydrogen battery or nickel-cadmium battery. 3. The self-discharge of polymer lithium battery is small, and its capacity loss is also small after long-term storage. 4. The polymer lithium battery has a long life, and its cycle life can reach more than 500 times in normal use. 5. The polymer lithium battery has no memory effect, and there is no need to exhaust the remaining power before charging, which is convenient to use. 6. Good safety performance Polymer lithium battery adopts aluminum-plastic soft packaging in structure, which is different from liquid battery with metal shell. Once there is a safety hazard, liquid battery is easy to explode, while polymer battery will only swell. 7. The thickness is small and can be made thinner. The lithium polymer battery is very thin and can be assembled into a credit card. Ordinary liquid lithium batteries adopt the method of customizing the shell first, and then sealing the positive and negative materials. When the thickness is less than 3 or 6mm, there is a technical bottleneck, but polymer batteries do not have this problem. The thickness can be less than 1mm, which is in line with the current demand for mobile phones. 8. Lightweight lithium polymer batteries use polymer electrolyte batteries and do not use metal casings as protective packaging. Polymer batteries are 40% lighter than steel lithium batteries of the same capacity and 20% lighter than aluminum batteries. 9. The capacity of large-capacity polymer lithium battery is 10~15% larger than steel shell battery of the same size and specification, and 5~10% larger than aluminum shell battery. It has become the first choice for color screen mobile phones and MMS mobile phones. Currently, most new color screen and MMS mobile phones on the market also use polymer batteries. 10. Low internal resistance The internal resistance of polymer lithium batteries is less than that of liquid batteries. At present, the internal resistance of domestic polymer batteries can even be less than 35m, which greatly reduces battery power consumption and extends the standby time of mobile phones, which can reach international standards. This polymer lithium battery supports a large discharge current and is an ideal choice for remote control models. It is the most promising alternative to nickel-metal hydride batteries. 11. The shape can be customized. Manufacturers do not limit their standard shapes, and can make them economically suitable sizes. Polymer lithium batteries can add or reduce the thickness of cells. According to customer needs, develop new cell models. The price is cheap and the mold cycle is very short. Some can even be customized according to the shape of the phone, in order to make full use of the battery shell space and increase the battery capacity. . 12. Good discharge characteristics Polymer lithium batteries use gel electrolyte. Compared with liquid electrolyte, gel electrolyte has stable discharge characteristics and a higher discharge platform. 13. The design of the protective plate is simple. Due to the use of polymer materials, the polymer lithium battery will not catch fire or explode, and the battery itself has sufficient safety. Therefore, the design of the polymer battery protection circuit can consider omitting the PTC and fuse, thereby saving 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: Strengths and Defects of Lithium Batteries