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Super Capacitor In The Car To Start The Application Prospect (figure)
, Also known as electric double layer Capacitor (ElectricalDoule-LayerCapacitor), gold capacitor, farad capacitor, through the electrolyte to the polarization energy storage. It is an electrochemical device, but its energy storage is not a chemical reaction process, this energy storage process is reversible, which is why the super-capacitor can repeatedly charge and discharge hundreds of thousands of times.
Super capacitor has a small resistance, long life, safe, reliable, large energy storage, charging rapid. It is the last ten years, breakthroughs in materials science with the emergence of new power-based energy storage devices, mass production, but a few years. United States, the world's leading technology journal
"Discover" magazine in January 2007 number, the super capacitor technology as found in 2006, one of the world's seven, that the "super capacitor energy storage is a revolutionary development in the field, and replace the traditional build in certain areas Battery . "
Super capacitor energy storage device as a new, super storage ability.
In the energy storage mechanism, the highly reversible, very long, can be millions of times repeatedly charge and discharge, and greater power; have a very wide voltage range and operating temperature range. It combines the traditional capacitor
high current fast charge and discharge characteristics of battery energy storage properties, fill the common capacitor and the battery specific energy and power ratio between the gap, the discharge power nearly ten times higher than the battery, make up aluminum Electrolytic Capacitor And rechargeable battery technology gap between the same time overcome the shortcomings of both, both with battery energy storage properties, but also has the power characteristics of capacitors, electrolytic capacitors than traditional high-energy density of thousands of times, up to 1000W / kg of magnitude, while the leakage current decimal thousand times.
It to thousands of high Farah Farah and even thousands of super-power capacity, energy storage capacity, long time; to instantaneous release of hundreds to thousands of A current, high current or short circuit will not discharge any of its impact; can charge and discharge in more than 100,000 without any maintenance and maintenance, life for more than a decade.
It can be used with great transient discharge current work status, but not easy to produce heat on fire and so on; charging time is very short, can be completed within a few seconds, is an ideal high-power secondary Power supply .
It can be very extreme low temperature environments, and pollution-free, safe and reliable for the range, green Environmental protection And easy to maintain, improve and solve the breakthrough power-power applications components.
Battery is Car The key electrical components, which directly affects the car boot. Now start the car, without exception, start motor starting methods used.
Start an instant, due to motor speed is zero, does not produce induced electric potential, thus starting current:
I = E / (RM + RS + RL) where: E is the battery voltage, RM to start the motor resistance, RS for the battery internal resistance, RL the line resistance. As the RM, RS, RL are very low, so very large starting current. For example: with 12V, 45Ah battery starts 1.9L car, battery voltage 12.6V Start a moment, reduced to about 3.6V, the instantaneous current start times up to the high rate discharge 550A10: significant damage to the battery caused strong caused by electromagnetic interference Electric Device power-down, the computer freezes solve one of the options is to increase battery capacity, but need to increase a lot, and it increases the volume is not a good choice.
Super capacitors and batteries in parallel will be a good solution to this problem.
Other cars Electronic In the field of high temperature capacitors, high resistance to complex environment and have high reliability requirements for capacitor applications market.
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