The difference between lithium ion batteries and batteries

The difference between lithium-ion battery and storage battery 1. The principle is different. The storage battery is a kind of battery. Its purpose is to store the limited electric energy and use it in the right place. Its working principle is to convert chemical energy into electrical energy. Lithium-ion battery is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. 2. Different prices Lithium-ion batteries are expensive, and lithium-ion batteries are about three times more expensive than lead-acid batteries. Combined with the service life analysis, the same cost is invested, and the life cycle of lithium-ion batteries is still longer. 3. Different safety performance Lithium ion batteries come from the stability of the positive electrode material and reliable safety design. The lithium iron phosphate battery has passed strict safety tests and will not explode even in severe collisions. Lithium iron phosphate is hot High stability, low electrolyte oxidation ability, so high safety. However, lead-acid batteries will explode under strong collisions, posing a threat to consumers' lives. 4. Different environmental protection Li-ion battery materials do not contain any toxic and harmful substances, and are regarded as green batteries in the world. The batteries are pollution-free in production and use, and comply with European RoHS regulations and are environmentally friendly batteries. However, there is a large amount of lead in lead-acid batteries, which will pollute the environment if they are not handled properly after being discarded. 5. Different chemical properties The chemical properties of lithium metal are very active, which makes the processing, storage and use of lithium metal very demanding on the environment. Therefore, lithium-ion batteries have not been used for a long time. 6. The temperature tolerance is different. The operating temperature of common lithium-ion batteries is -20-60 degrees Celsius. However, the performance of lithium-ion batteries will decrease when the temperature is lower than 0 degrees Celsius, and the discharge capacity will be reduced accordingly, so the performance of lithium-ion batteries is complete. The working temperature is usually 0~40℃. The operating temperature of the battery is generally required to be between 20°C and 25°C. When it is lower than 15°C, its discharge capacity will decrease. 7. Different cycle life The cycle times of lithium-ion batteries are generally about 2000-3000 times, while the cycle times of batteries are about 300-500 times. The cycle life of lithium-ion batteries is about five or six times that of batteries. 8. Weight energy density Lithium-ion battery energy density is generally 200~260wh/g, lithium-ion battery is 3~5 times that of lead-acid, which means that with the same capacity, lead-acid battery is 3~ of lithium-ion battery 5 times, so in the light weight of energy storage devices, lithium-ion batteries occupy an absolute advantage. Lead-acid batteries are generally 50~70wh/g, with low energy density and too bulky. 9. In terms of charging and discharging, different lithium-ion batteries have no memory effect. The battery can be charged and discharged at any time, the battery self-discharge is low, and the battery can be stored for a long time; the power is strong, it can be quickly charged and discharged, and it can be charged more than 80% in 20 minutes, and it is OK in 15 minutes Discharge the battery. The battery has a memory effect and cannot be charged and discharged at any time; there is a serious self-discharge phenomenon, and the battery is easy to be scrapped after being left for a period of time; the discharge rate is small, and it cannot be discharged with a large current for a long time. 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: Detailed explanation of the difference between lithium ion batteries and lead-acid batteries