The contrast between the lithium battery and lead acid battery

Source: 2020 - 03 - 31 about clicks occurred: the ratio of lithium battery and lead acid battery now local sales of electric cars, regardless of the battery brand, style or brand in their confusion is diverse, lead-acid battery and lithium battery occupies the dominant position, the author by comparing to let you know the relationship and difference between the two. In general, lead-acid battery components in 16 - Between 30 kg, volume is larger; The lithium battery components in 2. 5 - 3. Between 0 kg, the volume is relatively small, so convenient, carrying is convenient. From a quality point of view, the quality is hard to define, but consumers can purchase normal manufacturer production according to own actual need good battery. The cost of lithium-ion batteries is far higher than that of lead-acid batteries. However, lead-acid battery assembly costs of auxiliary materials and an external circuit system is very low. Due to the cause of the production process, the cost of lithium-ion batteries is opposite bigger. In production costs, labor costs accounted for more than 40%, lithium-ion batteries and lead-acid battery artificial cost is commonly 10% ~ 20%. Used for lithium battery production equipment is expensive, has the very high use value. Most of lithium battery production process is not reversible, the lead-acid battery is reversible transformation and recycling. Lead-acid batteries in the recovery of over 40%, and the recovery rate of lithium-ion batteries is almost zero. Lithium battery can the volume and composition of three times more than could be lead-acid batteries. Smaller lighter lithium-ion batteries. Long cycle life. The service life of electric car lithium-ion batteries in more than 800 times. Using lithium iron phosphate cathode material of lithium battery can reach about 2000 times of lead-acid batteries, lead-acid battery is 1. 5 ~ 5 times. This greatly reduces the lithium batteries the use of funds, prolong the service life of the battery, improves the efficiency of the battery. It has a wide range of charging effect. This is the unique advantages of lithium battery. When need to charge, the charging time can be controlled in 20 min ~ 1 h, charging power can reach more than 84%. On the basis of further technological innovation, better play to the characteristics. Lead acid battery and lithium battery which is better as we know, in general, energy storage products should be from the part of the energy density, volume density, applicability, price, service life, the respect such as national policy for: the energy density of the component is the energy density of lithium-ion batteries is in commonly 200 ~ 260 wh/g, lead acid is in commonly 50 ~ 70 wh/g, so the energy density of lithium battery components is lead-acid 3 ~ 5 times, this means that the same capacity, lead-acid battery is lithium battery 3 ~ 5 times, so the light energy storage equipment, lithium battery occupies the absolute advantage. The volume energy density of lithium-ion batteries capacity volume density is generally lead-acid battery 1. Five times, so in the case of the same capacity, the volume of a lithium battery is about 30% smaller than lead-acid batteries. System life cycle is now more popular material is ternary lithium iron, three yuan power lithium battery cycles were generally more than 1000 times, lithium iron phosphate battery cycles of more than 2000 times, lead-acid battery cycles generally as long as 300 ~ 350 times, so the lithium battery life is 3 - of lead-acid batteries 6 times. Prices are now on the prices more expensive than lead-acid batteries, lithium-ion batteries about 3 times, but the service life of the number analysis, the same capital investment, long cycle or for the lithium battery. Applicability due to the safety of the lithium battery is slightly worse than lead acid battery, so when use to do all kinds of safety precautions, such as to prevent external force or accident damage of lithium battery, because it may cause fire or explosion. Today's lithium ion batteries are also friendly to the temperature, so in other respects their adaptability is not worse than lead-acid batteries. Countries are planning to lead-acid batteries due to production or abandon battery formation of serious damage to the environment, so from the national policy guidance, expand the lead-acid battery again investment constraints, or in some areas, use lead-acid batteries, lithium batteries to replace the future trends of lead-acid battery will be more obvious, will gradually speeded up.