The difference between polymer lithium battery and lithium battery.
With the development of science and technology, there are more and more types of batteries, among which lithium batteries and polymer lithium batteries are the two most commonly used batteries. Although they are both lithium batteries, there are certain differences in materials, properties, and uses. This article will detail the difference between polymer lithium batteries and lithium batteries.
I. Definitions and Materials.
1.Lithium battery.
Lithium batteries are mainly composed of lithium metal, cathode materials, electrolytes, and separators. The cathode material is the key factor that determines the performance of lithium batteries, and the commonly used cathode materials include lithium cobalt oxide, lithium manganese oxide, lithium iron phosphate, etc. The electrolyte is the medium that conducts current in lithium batteries, which has an important impact on the capacity, internal resistance, and safety of the battery.
2.Polymer lithium batteries.
Polymer lithium batteries, also known as polymer lithium batteries, are mainly composed of cathode materials, polymer electrolytes and anode materials. The cathode materials are the same as those of lithium batteries, including lithium cobalt oxide, lithium manganese oxide, lithium iron phosphate, etc. Polymer electrolyte is a new type of ionic conductor with good mechanical properties and chemical stability. The anode material is generally carbon material, such as graphite, hard carbon, etc.
2. Performance and use.
1.Lithium battery.
Lithium batteries have the advantages of high energy density, high voltage, and low self-discharge rate, so they have been widely used in mobile communications, notebook computers, video cameras and other fields. In addition, lithium batteries also have the advantages of long cycle life and no memory effect, so they occupy an important position in the field of rechargeable batteries.
2.Polymer lithium batteries.
Compared with lithium batteries, polymer lithium batteries have higher safety and a wider range of uses. Due to the good flexibility and processability of polymer electrolytes, batteries of various shapes and sizes can be made to meet the needs of different fields. In addition, polymer lithium batteries have a lower self-discharge rate and can be stored for a long time without loss of power. Therefore, polymer lithium batteries have been widely used in medical equipment, smart cards, sensors, and other fields.
3. Summary. To sum up, there are certain differences between polymer lithium batteries and lithium batteries in terms of materials, properties and uses. Compared with lithium batteries, polymer lithium batteries have higher safety and a wider range of uses, which can meet the needs of different fields. In the future development, with the continuous progress of technology and the continuous expansion of application fields, polymer lithium batteries will be more widely used.