Overview about polymer lithium ion battery

Source: 2020 - 04 - At 10 hits: summary of polymer lithium ion battery polymer lithium ion battery with structure of liquid lithium ion battery is the same, is made up of iH extremely, cathode and electrolyte. The working principle of the basic same. , in the process of charging and discharging lithium ion through the ionic conductivity of the electrolyte embedding release between positive and negative electrode, so as to realize the transformation of chemical energy to electrical energy. The anode material and anode materials and the traditional liquid lithium ion battery is the same, the difference is that using the polymer electrolyte. The present study more polymer system with polyoxyethylene ( PEO) Groups, polyacrylonitrile ( PAN) Groups, polyacrylic acid methyl ester ( PMMA) Group, poly (ethylene 2 partial divinyl ( PVDF) Groups, etc. Polymer lithium ion battery electrolyte is both an ion conductor and electrical insulators, has certain mechanical strength and can be used as diaphragm material. Polymer lithium ion battery with polymer electrolyte instead of electrolyte, make its can thin shape, and the advantages of arbitrary shape, arbitrary area and will not leak, combustion, explosion and other security issues. Polymer lithium ion battery can be packed in plastic composite film instead of the traditional lithium ion battery of stainless steel or shell, thereby significantly reducing the weight of the battery, improve the capacity of the battery; Due to the density of the polymer melt can effectively prevent the formation of the positive dendritic lithium deposits, so the metal lithium as negative, is expected to greatly improve the electrochemical capacity of the battery. Polymer lithium ion battery can also be used as the anode polymer materials, the mass energy is expected to 50% higher than the current lithium ion secondary battery. The development direction of lithium ion battery industry has been further improve the energy density of battery, safety and environmental performance, reduce manufacturing cost, research and development of new electrode materials and the manufacturing technology of the lighter. Polymer lithium ion battery conform to the trend of the development of lithium industry, known as the 'next-generation lithium-ion batteries. Since put into production in 1999, its growth has been faster than the liquid lithium ion batteries, polymer lithium ion battery will continue to grow rapidly in the future.