Features and advantages of polymer lithium batteries
As the third-generation lithium-ion battery, the polymer lithium battery, what are the characteristics and advantages, let's briefly introduce it below. With the increasing application of portable electronic products and increasing market demand, the demand for lithium batteries has also increased. Based on such a broad market, in order to gain a leading position in this market, the world’s major battery companies are all committed to the development of higher energy density, miniaturization, thinning, lightweight, high safety, long cycle life and low battery life. Cost of new batteries. Among them, the polymer lithium ion (Lithiumionpolymer) battery has the above-mentioned advantages, and it is the target of various manufacturers' research and development. Based on the characteristics of safety, lightness and thinness, polymer lithium ion batteries meet the requirements of portable and mobile products. Therefore, in the next 2 to 3 years, polymer lithium batteries will replace lithium ion batteries with a market share of 50%, which is called the 21st century. The best power solution for mobile devices. Eight reasons for using polymer lithium batteries: good safety performance. Polymer lithium batteries are structured with aluminum-plastic soft packaging, which is different from the metal shell of liquid batteries. Once a safety hazard occurs, liquid batteries are easy to explode, and polymer batteries are the most It will only be mad. Small thickness, can be made thinner. Ordinary liquid lithium batteries adopt 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. The polymer cell does not have this problem, and the thickness can be made. Below 1mm, it is in line with the current demand for mobile phones. The light weight polymer battery is 40% lighter than a steel shell lithium battery of the same capacity and 20% lighter than an aluminum shell battery. Large-capacity polymer batteries have a capacity of 10-15% higher than steel-shell batteries of the same size and 5-10% higher than aluminum-shell batteries. They have become the first choice for color screen mobile phones and MMS mobile phones. Nowadays, the new color screen and MMS mobile phones on the market are also available. Most of them use polymer batteries. Low 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 below 35mΩ, which greatly reduces the self-consumption of the battery and prolongs the standby time of the mobile phone. It can fully meet the international standards. This kind of polymer lithium battery that supports large discharge current is an ideal choice for remote control models, and it has become the most promising product to replace nickel-hydrogen batteries. The shape can be customized. The polymer battery can increase or reduce the thickness of the battery cell according to the needs of customers. New battery cell models can be developed. The price is cheap and the mold opening cycle is short. Some can even be tailored to the shape of the mobile phone to make full use of the battery shell space. , Improve battery capacity. Good discharge characteristics. Polymer batteries use colloidal electrolytes. Compared with liquid electrolytes, colloidal electrolytes have stable discharge characteristics and a higher discharge platform. The design of the protection board is simple. Because the polymer material is used, the battery core does not fire or explode, and the battery itself has sufficient safety. Therefore, the protection circuit design of the polymer battery can be considered to omit the PTC and fuse, thereby saving battery costs.