Label: Lead-acid batteries that cannot be replaced. Lead-acid batteries have a long history, but they are still widely used today, and their use accounts for more than half of the global battery market. With the development of technology and the emergence of new types of batteries, why can’t this old guy be replaced? First, let's compare the performance of several new types of batteries that are very popular in the battery industry with lead-acid batteries
. Primary battery, lead-acid battery
, nickel-cadmium, nickel-metal hydride battery, lithium-ion battery, fuel cell, moderate performance, moderate performance, moderate high-power discharge energy density, high energy density, very high energy density, moderately poor, moderately good, poor power, moderately good, good, poor, poor, good, good, cost Good Good Medium Poor Poor Environmental Protection Poor Medium Good Good Technology Maturity Good Good Good Poor Poor Advantages Mature technology, high cost performance, compact and portable, excellent cost performance, mature technology, good safety, high rate charge and discharge, mature technology, high rate charge and discharge, technology Mature energy density, high energy density, no memory effect, long cycle life, low self-discharge, high energy density, high energy conversion efficiency, low pollution. There are obvious advantages in terms of life span, but the safe and stable performance of lead-acid batteries and excellent cost performance make it still impossible to be replaced in many fields. We compare the battery type cost from the secondary use economy of the battery (RMB/Wh) Cycle life discharge cost (RMB/kWh times) Service life recovery value (RMB 10,000/ton) Lithium-ion battery 6 >1000 6 5～ 8 years-Ni-MH battery 4.5 >1000 4.5 5～8 years-Lead-acid battery 1.21 >300 4 2～3 years 0.7～1 It can be seen from the above calculation that under the current technology and economic level, if there is no battery performance Or additional requirements in terms of volume and weight, lead-acid batteries still have good economic efficiency compared with lithium-ion batteries and nickel-metal hydride batteries, and they can still have better technical competitiveness in many fields, regardless of the cost of the entire life cycle. , Or the initial investment cost. This is not only the case for single cells, if the complexity of the battery management system is taken into account, the mature technology of lead-acid batteries has more cost advantages. Therefore, we believe that the replacement of the traditional application of lead-acid batteries by new batteries requires a longer period. Of course, the technological maturity progress of new batteries such as lithium-ion batteries and nickel-metal hydride batteries is still difficult to grasp. Once the cost of the two batteries is greatly reduced with the development of technology and industry, the application space of lead-acid batteries will also be significantly restricted.
The increasing consumption demand in key segments such as top lead acid battery manufacturers, top lead acid battery manufacturers and top lead acid battery manufacturers have been driving the sales of and its derivatives worldwide.
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