The characteristics, types and differences of lithium batteries

What are the characteristics of lithium batteries? 1. It has a higher weight-to-energy ratio and volume-to-energy ratio; 2. The voltage is high, and the voltage of a single-cell lithium battery is 3.6V, which is equal to the series voltage of three nickel-cadmium or nickel-metal hydride rechargeable batteries; 3. The self-discharge is small and can last for a long time. Storage, this is the most prominent advantage of the battery; 4. No memory effect. Lithium batteries do not have the so-called memory effect of nickel-cadmium batteries, so there is no need to discharge lithium batteries before charging; 5. Long life. Under normal working conditions, the number of charge/discharge cycles of lithium batteries is far greater than 500; 6. It can be quickly charged. Lithium batteries can usually be charged with a current of 0.5 to 1 times the capacity, which shortens the charging time to 1 to 2 hours; 7. It can be used in parallel at will; 8. Because the battery does not contain heavy metal elements such as cadmium, lead, and mercury, it is not environmentally friendly. Pollution is the most advanced green battery in the contemporary era; 9. High cost. Compared with other rechargeable batteries, lithium batteries are more expensive. Types and differences of lithium batteries 1. Classification according to battery positive and negative materials. 1. Lithium cobalt oxide battery: its high specific energy makes the lithium cobalt oxide battery turn into a mobile phone. Due to the excellent chemical molecular formula of lithium cobalt oxide batteries, the structure of rechargeable batteries is stable, the volume is relatively high, and the comprehensive type can be prominent, but its safety factor is poor, and the cost is also high. The key is to use large, medium and small lithium batteries, which are widely used in middle Small and medium-sized electronic products such as small notebooks, smart phones, MP3/4, notebook computers, digital cameras, etc. The product characteristics are particularly stable. The maximum battery charging power and working voltage are all normal from beginning to end. The comprehensive type can be highlighted. The standard working voltage is normal. 2. Manganese acid Lithium battery: Lithium manganate battery can be charged and discharged at a current of 20-30A, and has a suitable standard for hotness. Although low cost, high safety factor, and good ultra-low temperature characteristics, the raw materials themselves are not stable and easily dissolve to cause vapor. Therefore, they are mostly used to mix with other raw materials to reduce the cost of lithium batteries, but their cycle time service life attenuation coefficient is relatively low. Fast, prone to swelling, weak high-temperature characteristics, and short service life. The key is to use small lithium batteries and power lithium batteries. The nominal voltage is the working voltage. Lithium manganese battery spare parts for pneumatic tools, medical equipment, hybrid vehicles and new energy vehicles. 2324.jpg3. Lithium iron phosphate battery: Lithium iron phosphate battery has excellent safety, photoelectric catalytic characteristics and small resistors. The relative density of power energy is high. If the processing manufacturer has good winding processing technology, the processing capacity can be larger, which can achieve 185 watts/kg. The safety factor is excellent. During the entire process of battery charging, the structure of the internal rechargeable battery is not prone to major changes, nor will there be a strong explosion, even if there are unexpected events such as short-circuit failure, overcharging, and collision. Very safe. 2. According to the general classification of the internal structure raw material lithium battery. 1. Lithium metal batteries: Lithium metal batteries generally use manganese dioxide as the battery cathode material, metal lithium or its alloy steel metal as the battery anode material, and the battery uses a non-aqueous electrolyte reaction solution. 2. Lithium batteries: Lithium batteries generally use lithium alloy steel metal oxides as battery cathode materials, high-purity graphite as battery anode materials, and rechargeable batteries with non-aqueous electrolytes. 3. Carry out classification according to shell raw materials. 1. One is a battery with a steel case, in short, a steel case. Most processing manufacturers choose steel as the raw material for rechargeable battery casings, because the physical reliability and compressive resistance of steel raw materials are much higher than that of aluminum shell materials. After the reliability design and construction of various processing manufacturers, the safety device has been installed Coming to the lithium battery core, the safety factor of the aluminum shell column-type rechargeable battery has achieved a new aspect ratio. 2. Another type, aluminum shell rechargeable battery, the same reason, the shell is made of aluminum material. Aluminum shell rechargeable batteries have a shell type and a soft shell type. There are many kinds of battery cathode materials. Depending on which one you like to use, the application of different raw materials is still different. 3. Polymer lithium battery, the casing is made of polymer raw materials, most of which are silver, and a few are dark gray, which are called black in the field. It is mainly used for car electronic equipment (GPS positioning tracking rechargeable battery, tire pressure inspection rechargeable battery, driving recorder rechargeable battery, shared bicycle, solar power energy storage technology light, low temperature wireless walkie-talkie, etc.. Statement: Some pictures of articles published on this site And the content is from the Internet, if there is any infringement, please contact to delete the previous article: What are the differences between lithium batteries and mobile phone lithium batteries