The main classification and performance comparison of power battery

Source: 2020 - 04 - 12 21:28 hits: the main power battery type classification and performance comparison of batteries than can ( Wh /公斤) Than the power density (Wh/l specific power W/kg) Cycle life costs ( $/ KWH) Lead-acid battery 30 ~ 45 to 60 ~ 90, 200 ~ 300, 400 ~ 600 150 nickel cadmium battery 40 ~ 60 of 80 ~ 110, 150 ~ 350, 600 ~ 1200 air battery, 190 ~ 250, 190 ~ 300 270 105 NA 90 ~ 120 nimh batteries 60 ~ 80, 120 ~ 160, 550 ~ 1350 1000 NA sodium sulfur battery, 100, 150, 200, 800, 250 ~ 450 lithium ion battery of 90 ~ 130 ~ 140 ~ 200, 250 ~ 450 ~ 800 ~ 1200, 200 quality of lead-acid battery, charge and discharge performance is poor, short cycle life. In addition, lead-acid batteries contain heavy metal lead, cause serious pollution to environment, pose a threat to consumer's life safety. Therefore, lead-acid battery will be eliminated. Nickel cadmium battery technology mature, small impact vibration, small self-discharge, stable performance, large discharge current, temperature range of use: 40 ℃ - 65 ℃, almost no maintenance. But the current efficiency and energy efficiency is not high, low, the utilization of active material with memory effects. The fatal shortcomings in cadmium is toxic metal elements. European Union countries since December 31, 2005 banned imports of nickel cadmium battery, in the long run, it will gradually replaced by the more environmental protection, the better performance of battery. Nimh batteries with high power, large current charge and discharge, no pollution, safety performance is good wait for a characteristic. Defect is high temperature memory effect is weak, environment performance is poor, but because of its mature technology and good comprehensive performance, is currently used in hybrid electric vehicle is the most mature green battery. High power nimh batteries in the epoch-making development opportunities. More than 80% of the hybrid cars use nimh batteries as power development or production. Lithium ion battery has a fast charging and discharging large power and high energy density, long cycle life, etc, but the price is high, under the condition of high temperature, its safety performance is poor. However, with the continuous development of the positive anode materials and technology mature, lithium ion battery will occupy the dominant position in the era of electric cars. Fuel cell is a kind of the fuel chemical energy into electrical energy device. However, when the fuel cell to generate electricity, internal reactions involved in the reactants has experienced a continuous consumption of reaction, because its not repeatable use, need continuous input of reactants. After reaction stability, fuel cell need to constantly provide fuel, convert chemical energy into electricity. Hydrogen fuel cell and hydrogen fuel, fuel, although there is no any pollution technology is relatively mature, engine performance is superior to the existing internal combustion engine, but the cost is very high, the rest of the travel time to increase further strengthen, need to have a huge infrastructure, these techniques work for a long time, it is difficult to achieve the desired effect, commercialization is difficult.