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Yes, the raw materials of supercapacitors are environmentally friendly.
In addition, supercapacitors can better absorb and release energy, that is, the energy utilization rate is relatively high.
For example, a battery charge of 1 kWh will release about a degree, while a supercapacitor can reach a degree.
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The characteristics of supercapacitors (1) fast charging speed, charging for 10 seconds and 10 minutes can reach more than 95% of its rated capacity;
2) Long cycle life, deep charge and discharge cycle use times up to 1.5 million times, no "memory effect";
3) Super high-current discharge ability, high energy conversion efficiency, small process loss, high-current energy cycle efficiency of 90%;
4) High power density, up to 300w kg 5000w kg, equivalent to 5 10 times of the battery;
5) There is no pollution in the composition, production, use, storage and dismantling process of the raw materials, which is an ideal green power supply;
6) The charging and discharging circuit is simple, there is no need for a charging circuit like a rechargeable battery, the safety factor is high, and it is maintenance-free for long-term use;
7) Good ultra-low temperature characteristics, wide temperature range -40 +70;
8) Easy to detect, the remaining power can be read directly;
9) The capacity range is usual.
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It has to be.
At present, Yutong does the bus gas and electricity (supercapacitor) mixing, and the fuel saving rate is more than 30%.
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Supercapacitors can already be used as energy storage devices to replace batteries in specific occasions, such as the trams in Wuhan, which can be quickly charged at every stop. The disadvantage is that the energy density is still low, after all, the battery chemical energy storage is much higher than the energy density, and the output voltage of a capacitor is linearly reduced, unlike the battery, the voltage is relatively stable in the whole cycle, so that the circuit corresponding to the supercapacitor is more complicated. Of course, the core is the issue of energy density.
** In the two supercapacitors I bought, charged to 5V after series connection, discharged to about 1700mAh, because the capacitor discharge is a straight line, according to the average voltage (calculation, the discharge energy is only about, much less than a 18650 lithium battery (calculated according to the most entry-level 2000mAh) 7 2wh。And this capacitor size is dozens of times larger than that of the 18650 battery.
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The premise of this formula is that the capacitor is a self-contained system isolated from the outside world.
And the harsh reality is that the charges don't sit on the plates and wait for you to come, and they (platelets, platelets, queue) ......The vast world is so full of fun, and the heavens and the earth are always filled with heart-warming moments that can hook up electric charges away from the plates......
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That's just the capacitance rather than the energy, this material generally has a very low breakdown electric field strength, and the charging process is accompanied by a huge deformation, and there is a high dielectric loss and poor thermal stability, resulting in a very low discharge voltage, so the actual energy obtained is not high, and the effect of energy storage is not good.
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Summary. High-efficiency electronic economizers are not capacitors, they have different physical principles and functions. High-efficiency electronic energy saver is an electrical equipment that reduces the energy consumption of electrical appliances during use by adjusting the voltage and current waveforms, so as to achieve the purpose of energy saving.
A capacitor is a passive component that stores or releases charge to achieve different functions in a circuit, such as filtering, signal coupling, etc.
High-efficiency electronic economizers are not capacitors, they have different physical principles and functions. High-efficiency electronic energy saver is a kind of electrical equipment, which adjusts the voltage and current waveform to reduce the energy consumption of electrical appliances in the process of use, so as to achieve energy saving. A capacitor is a passive component that stores or releases charge to achieve different functions in a circuit, such as filtering, signal coupling, etc.
I'm still a little confused, can you be more detailed?
High-grinding silver efficiency electronic economizers are not capacitors, they have different physical principles and functions. According to my search on the Internet, a high-efficiency electronic energy saver is an electrical device that reduces the energy consumption of electrical appliances in the process of use by adjusting the voltage and current waveform, so as to achieve the purpose of energy saving. The capacitor is a passive component that stores electric charge, and its main function is to realize different functions in the circuit by storing or releasing charge, such as filtering, signal coupling, etc.
Therefore, the two are fundamentally different.
Hello, the inspection of the capacitor: the capacitor works poorly or fails, which will weaken the high-voltage spark, and the power-off contact is often burned, the inspection method is: remove the distributor cover ** high-voltage line, 5-7 mm away from the cylinder body, open the ignition switch, toggle the breakpoint contact to check the high-voltage flashover, and then remove the capacitor wire, check the high-voltage flashover, at this time the spark should be greatly weakened, such as the two high-voltage flashovers are not much different, indicating that the capacitor is invalid and should be replaced.
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1 is the meaning, that is, the mark 104Yes, there is also a mark. 1