What are the important differences between lithium batteries and storage batteries?

The difference between a lithium battery and a storage battery, what is the difference between a lithium battery and a storage battery? 1. The conceptual nature of a lithium battery is different: it is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. It mainly depends on the movement of lithium ions between the positive electrode and the negative electrode to work. In the process of charging and discharging, Li+ intercalates and deintercalates back and forth between the two electrodes; during charging, Li+ deintercalates from the positive electrode and inserts into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge. Due to the very active chemical characteristics of lithium batteries, the production, storage and use of lithium metal have very high environmental requirements. Storage battery: storage battery is also called secondary battery. It is a device that directly converts chemical energy into electrical energy. It is a rechargeable battery designed to be recharged through a reversible chemical reaction. It usually refers to a lead-acid battery. After discharging, the internal active material can be regenerated by charging to store electrical energy as chemical energy; when it is to be discharged, chemical energy is converted into electrical energy again. A storage battery is an electrochemical device that stores chemical energy and releases electrical energy when necessary. 2. Different safety performance Lithium batteries: Lithium batteries come from the stability of the positive electrode material and reliable safety design. Lithium iron phosphate batteries have passed strict safety tests and will not explode even in severe collisions. Iron phosphate Lithium has high thermal stability and low oxidizing ability of electrolyte, so it has high safety. Batteries: Lead-acid batteries will explode under a strong collision, posing a threat to the lives of consumers. 3. Different prices of lithium batteries: Lithium batteries are expensive, and lithium 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 batteries is still longer. Storage battery: The price of a storage battery ranges from a few hundred yuan to a few thousand yuan. The price of each manufacturer is similar. 4. Different materials for green and environmental protection. Lithium battery materials do not have any toxic and harmful substances, and are regarded as green batteries in the world. The batteries are pollution-free during processing and use. They comply with European RoHS regulations and are environmentally friendly batteries. There is a large amount of lead in lead-acid batteries. If they are not handled properly after being discarded, they will pollute the environment. 5. In terms of cycle life, lithium batteries have a longer service life, and batteries have a relatively short service life. The cycle times of lithium batteries are generally around 2000-3000 times. The number of cycles of the battery is about 300-500 times. 6. Weight energy density Lithium battery energy density is generally 200~260wh/g, lithium battery is 3~5 times that of lead-acid, which means that with the same capacity, lead-acid battery is 3~5 times that of lithium battery. Therefore, in the light weight of energy storage devices, lithium batteries occupy an absolute advantage. Lead-acid batteries are generally 50~70wh/g, with low energy density and too bulky. 7. Volumetric energy The volume capacity density of lithium batteries is usually about 1.5 times that of batteries, so under the same capacity, the volume of lithium batteries is about 30% smaller than that of lead-acid batteries. 8. The operating temperature of the lithium battery is -20-60 degrees Celsius in different temperature ranges, and the thermal peak of the lithium iron phosphate battery can reach 350-500 degrees Celsius, and it can still release 100% of the capacity under high temperature conditions. The normal operating temperature of the battery is -5-45 degrees. When the temperature drops by 1 degree, the relative battery capacity drops about 0.8%. 9. In terms of charging and discharging, different lithium 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. It has strong power and can be charged and discharged quickly. It can be fully charged by more than 80% in 20 minutes and can be used in 15 minutes. The power is over. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.