Tags: There are many types of secondary batteries, and new types of batteries with high efficiency and durability are continuously being developed. Does it mean that lead-acid batteries
will be replaced by the elderly? But in reality, the use of lead-acid batteries in all walks of life is still Sit firmly in the position of brother one. Let's compare the characteristics of various secondary batteries. Perhaps we can find the reasons: primary battery lead-acid batteries, nickel-cadmium batteries, nickel-metal hydride batteries, lithium-ion batteries, fuel cells, moderate performance, moderate performance, high power discharge energy density, high energy density. High Energy Density Medium Poor Good Good Power Poor Medium Good Good Medium Service Life Poor Medium Good Good Good Cost Good Good Medium Poor Environmental Protection Poor Medium Good Good Technology Maturity Good Good Good Good Poor Bad Advantages Mature technology, high cost performance, smart portability, excellent cost performance , Mature technology, good safety, high rate charge and discharge, mature technology, high rate charge and discharge, mature technology, high energy density, no memory effect, long cycle life, low self-discharge, high energy density, high energy conversion efficiency, low pollution from the top We can see from the table that nickel-cadmium and nickel-hydrogen batteries are actually better than lead-acid batteries in terms of efficiency and environmental protection, but the important thing is China’s current economic conditions. The price and cost of nickel-cadmium and nickel-hydrogen batteries are relatively high. Enterprises and ordinary people Unwilling to choose. Compared with lithium-ion batteries and nickel-metal hydride batteries, lead-acid batteries still have good economic efficiency, and can still have better technical competitiveness in many fields, whether it is the full life cycle use cost or the initial input 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. So far, there is no secondary battery that can truly replace lead-acid batteries.
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