What is the difference between lead-acid batteries and lithium batteries?

Speaking of lead-acid batteries, the application we can think is to electric bike. In fact, according to its structural and use, the lead acid battery is divided into four categories: 1, activation 2, power 3, fixed valve control sealing 4, small valve control sealing. This approach is mainly classified from the structure, and it is also necessary to understand the use of non-battery practitioners. If it is classified from the perspective of pure market applications, it is better to understand, according to this standard, lead-acid battery Divided into two categories: 1. Main power supply, including: communication equipment, industrial instrumentation, power control machine, portable equipment 2, spare power, including: emergency equipment, communication base station, electronic switching system, solar system. This application classification, with a number of intersections with lithium-ion batteries, in terms of market capacity, this intersection is mainly focused on power batteries such as electric bicycles and small passenger cars. In the field of power battery, the main thing is also the dispute between these two technologies, so we have representative of lead-acid batteries and lithium batteries in this area. Otherwise, the reference matter is uncertain, and it is more than marginal. Everything about the two, the source is based on the properties of the material, the positive and negative electrode material of the lead-acid battery is the lead, metal lead, concentrated sulfuric acid; the lithium ion battery has four components: positive electrode (lithium cobaltate / manganese Sketium / lithium iron phosphate / triple), negative electrode graphite, diaphragm and electrolyte, thereby leading to different mainly: 1, the nominal voltage is different: the monomer lead-acid battery 2.0V, monomer lithium battery 3.6V; 2, the energy density is different: the lead-acid battery 30Wh / kg, lithium battery 110WH / kg; 3, the life expectancy is different, the lead-acid battery is 300-500 times, the lithium battery is more than a thousand times, from the two mainstream technology routes of lithium battery bicycles, the three-dimensional battery and the lithium iron phosphate battery are also relatively large. The three-dimensional lithium battery discharge life is 1000 times, and the life of the lithium iron phosphate can reach 2000 times; 4, charging method: lithium battery uses a limiting limit method, that is, a limit for a limit on current and voltage, and a more charging method of lead-acid batteries, and choosing to be: constant current charging method, constant Pressure charge method, stage and other flow charge and floating charge, can not be described. The above is the difference between the two electrical performance characteristics based on the different working principles. In addition, there are other two factors that affect the promotion of the two: safety and cost, which can be called market factors. Different from electrical performance characteristics of lithium batteries, the lead-acid battery is dominated on market factors. 1. Safety: The lead-acid battery high current discharge is not easy to accident, as it has a high sealing property, even if it is unexpected (such as leak), its positive and lead acid electrolytes are not flammable. The electrolyte of the lithium-ion battery is ester solution, flammable and volatility. The working principle of lithium battery is that the lithium ion is embedded / embedded between the positive electrode and the negative electrode, and the large current passes the lithium delegation crystal, both of which are the root cause of lithium battery combustion and explosion. 2, cost: The materials and work requirements used in lead-acid batteries are much lower. As far as electric bicycles are seen, the lithium electric carrier is the battery, which may be the value of the entire electric vehicle assembled with lead acid batteries. In the electric bicycle and small household car market, lead-acid batteries and lithium batteries are in applications because they have interoperable comparative advantages, lithium batteries have electrical properties and convenient advantages, while lead-acid batteries have safety and cost advantages. The performance of these two types of batteries in other applications is also true. Recommend: LiFePO4 Battery Manufacturer Energy storage battery Manufacturer Integrated machine energy storage battery series Manufacturer Lead lithium battery Manufacturer Outdoor Backup Battery Manufacturer Portable outdoor power supply Manufacturer Power battery Manufacturer Powerwall LiFePO4 Battery Manufacturer Battery rack Manufacturers Telecom LiFePO4 Battery Manufacturer Wall mounted battery storage Manufacturer China Lifepo4 Battery