Super Capacitor Application In Electric Vehicles
Super Capacitor Application In Electric Vehicles
Super Capacitor Electric bus is the best urban public transport modernization program?? Environmental protection, energy saving, low cost!
A super Capacitance Technical characteristics of devices
Super capacitor energy storage device is successfully developed (build Battery ) Is a revolution: the other energy storage devices, by electric energy into chemical energy, then chemical energy into electrical energy, loss of energy of the two changes, the super capacitor charge directly, and then direct discharge, there is no change in the form of energy, energy is also no loss; charge-discharge efficiency of 98%, the economic value of large, only the lead-acid Battery 70%.
Super capacitor is the late seventies of last century, there's a product that breaks through the traditional capacitor design, from the micro-farad capacitor grade level increased to Farah (1 farad = 106 microfarads), created 1000 farad super capacitor; to the end of last century, it has emerged 10,000-100,000 traction Farah super capacitor, super capacitor from the beginning to enter the battery applications market, there's a new super capacitor electric vehicle concept, which with its excellent performance, change people's traditional knowledge, the establishment of a new electric car transportation design.
Supercapacitors than the power, its features are: charging, the charging capacity, charge level is fast; discharge, the discharge capacity, discharge faster. In the electric vehicle is running, start fast, accelerate quickly, climb strong, 30 times more than the large lead-acid batteries, electric cars that can use this is the most important performance.
Super capacitor specific energy is small, its features are: an equal weight of super-capacitor driving range, and only lead-acid battery 1 / 3, which is a big flaw in supercapacitors. Super capacitor driving range is short, running short; but the charging speed can make up for deficiencies in the short driving range, a remedy is in urban traffic lines at both ends to establish charging stations, so super capacitor driving range of electric vehicles can unrestricted.
2, super capacitors advantages:
1, super capacitor is green energy (carbon), does not pollute the environment.
2, super capacitor long life (1-10 million); lead-acid battery life (500), easily damaged, difficult to manage, lead-acid batteries is 20 to 200 times, the same fate with equipment.
3, Super capacitor charging speed (0.3 seconds to 15 minutes); lead-acid battery charge time (5 to 8 hours), many battery charge time is long, short driving range.
4, super-capacitor charge-discharge efficiency (98%); lead-acid battery charging and discharging efficiency is low (70%);
5, super-capacitor power density (10.000W/kg); lead-acid battery power density low (300W/kg), 30 times worse.
6, super capacitors completely maintenance-free, working temperature range (-40 ~ 50); lead-acid battery electric vehicle driving range at -40 90% reduction in the super capacitor is only reduced by 10%.
7, super capacitor energy recovery strong electric buses, emergency braking energy recovery of 75%; lead-acid battery energy recovery is only 5%, this is too important a public bus, you can save a lot of fuel.
8, a relatively low cost. Lead-acid battery supercapacitor prices double in mass production the price will drop after; but the life of a super capacitor 10 times higher than the lead acid battery, this industrialization on public buses is very important.
3, dual power super capacitors for electric vehicles to fuel-efficient Why? Why can reduce pollution?
Dual power super capacitor electric vehicles, the biggest advantage is the full super-capacitors at low rpm, high load case, the basic free energy loss; in the slow, downhill, braking situation, the energy can recovery.
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