Summarize the difference between lithium-ion batteries and lead-acid batteries

The difference between lithium-ion batteries and lead-acid batteries is understood from the market. At present, where electric vehicles are sold, whether it is battery brands, designs or a wide range of brands, lead-acid batteries are iron phosphate lithium-ion batteries, then lithium-ion batteries and lead-acid batteries What is the difference between batteries? The following is the difference between Li-ion batteries and lead-acid batteries summarized by Carolita Battery for consumers' reference. The details are as follows: Mass and volume Normally, the weight of a lead-acid battery is between 16 and 30 kg, which is relatively large. Lithium-ion batteries generally weigh 2.5-3.0 kg and are relatively small in size, so they are light and easy to carry. From a quality point of view, it is difficult to judge the pros and cons of the two, but consumers can buy high-quality batteries produced by regular manufacturers according to their actual needs. Battery capacity Li-ion batteries generally have a capacity of 8-10 amps. The capacity of a lead-acid battery is approximately 20 amps. Kilometer travel For example, using the same 48V battery, both lithium-ion and lead-acid electric vehicles can travel 30-40 kilometers with a full charge, depending on the size of the motor used. Durability Lithium-ion batteries are durable, consume slowly, charge and discharge more than 500 times, have no memory, and generally have a service life of 4-5 years. Lead-acid batteries generally have a depth of 400 times less than the memory after deep charge and deep discharge, and their life span is about 2 years. If you use a maintenance-free lead-acid battery, it should be noted that the battery loses less water, and generally do not add distilled water when using it. In terms of durability, lithium-ion batteries have good impact resistance. A fully charged battery is safely secured. It vibrates for 1 hour with an amplitude of 4mm and a frequency of 16.7hz. Overcharge resistance, 25℃, fully charged battery 0.1ca charge for 48 hours, no leakage, no swelling or breakage of the battery, normal open circuit voltage, capacity retention rate above 95%; high current resistance, full charge 2CA discharge for 5 minutes or 10CA discharge for 5 Seconds, the non-conductive part is fused and the appearance is not deformed. Price and warranty period At present, the mainstream battery on the market is 48v. If it needs to be replaced, the lead-acid battery is about 450, and the warranty period is 1 year; lithium-ion batteries are more expensive, about 1,000 yuan, but the warranty period is two years. Environmental protection In 2012, the state announced the entry conditions for the lead-acid industry. Since then, the lead-acid industry has been integrated. Most manufacturers use the internalized free green production of cadmium and arsenic, which is more energy-efficient and environmentally friendly. In the process, if the method is not appropriate, it may cause pollution; lithium-ion batteries are relatively environmentally friendly in terms of production and recycling. Currently, lithium-ion batteries cover a variety of technologies, but the differences are also very large. Usually called lithium-ion batteries are actually lithium-ion batteries, which rely on the insertion and swimming of lithium ions between the positive and negative poles to realize the mutual conversion of chemical energy and electrical energy. According to the different anode materials, there are many kinds of lithium-ion batteries, and the current mainstream anode is important: the battery is lithium cobalt oxide, lithium manganese oxide and ternary materials, and the anode uses graphite. When charging, after the anode lithium ions swim to the anode, the electrolyte is embedded in the inner layer of graphite. When discharging, the lithium ions swim from the cathode graphite lining through the electrolyte to the anode material. The greater the storage capacity of lithium ion positive and negative materials. The greater the potential difference between lithium and lithium intercalation, the higher the energy density of the battery. Therefore, when testing the battery, the internal resistance of the battery is as small as possible. Therefore, lithium-ion batteries, lithium, and lithium are better embedded, and the battery is charged and discharged more fully. This is what we usually say, the battery has good durability and quality well. 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: Why does Tesla prefer ternary lithium-ion batteries?