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A major battery structure improvement has been released to help reduce the gap between semiconductor and battery technology. Traditional battery technology has been lagging behind semiconductors because of its inability to change chemical reactions.
Instead of using the main battery to store energy, they only feed a small amount of power to these devices based on the needs of individual devices - this new hybrid capacitor /battery stores enough energy for the current energy usage of nearby devices. Ioxus Inc. said the company has solved the "battery problem" by defining a new distributed-energy architecture.
“In many applications, our hybrid ultra-capacitors are superior to traditional battery structures,†said Chad Hall, co-founder and vice president of Ioxus. “When you need a small or backup power supply, we can provide a solution that meets these needs without the problems of using a traditional battery.â€
The field of application of this technology ranges from simple to extremely complex applications. For example, a simple flashlight can be fully charged in just 20 seconds with a hybrid supercapacitor. And a complex regenerative braking system can also switch to hybrid supercapacitors, charging each time you brake and stop, and then you can restart the car when you step on the throttle - this is expected to eliminate All pollution caused by the stopping and starting of the car.
In automotive applications, this hybrid capacitor can be embedded in a variety of different applications in a more cost-effective way. It can store a small amount of energy, and it can be used to indicate LED lights, on-board computers, and electric windows. The electric door lock and safety system provide the required power. When the car's main battery fails completely, all systems powered by hybrid supercapacitors will still operate smoothly. In addition, Ioxus also estimates that if the electric vehicle uses this distributed hybrid supercapacitor instead of the original single large centralized battery design, it will reduce the weight by about 20 to 30 pounds (about 9 to 14 KG).
There are also a few other vendors on the market that claim to have hybrid supercapacitors similar to Ioxus, but these products lack the unique integration features of Ioxus. For example, Evans Capacitor Co. introduced a low-energy hybrid capacitor with higher voltage, but it is more similar to a stand-alone supercapacitor than Ioxus' hybrid supercapacitor. JM Energy Corp. has also developed a "lithium ion capacitor", but similarly, it is more like a lithium-ion battery than the Ioxus hybrid supercapacitor. Ioxus also stressed that the company's intellectual property rights make its products more efficient than Evan and JM Energy's products.
How does “hybrid supercapacitor†work?
Ioxus' hybrid supercapacitors combine a capacitor architecture that accumulates charge on separate insulating plates, as well as a chemically stored lithium-ion battery. This hybrid supercapacitor, which uses the same chemicals as a lithium-ion battery, disperses these chemicals onto the surface of the solid-state electrode instead of embedding these chemicals in the porous electrode – a slow “intercalation†process It is necessary for charging and discharging.
As a result, Ioxus' hybrid supercapacitors can be charged and discharged at almost any rate, which allows them to deplete and release large or small currents as needed for the application. There is only one drawback: they can't store as much power as traditional batteries, and they don't last long, but distributed architecture can compensate for these flaws, Ioxus said.
“Mixed capacitors can be added where energy is needed,†says Hall. "They can store more energy than a single-type ultracapacitor, and it can withstand an almost unlimited number of charge-discharge cycles compared to a lithium-ion battery."
Hybrid supercapacitors can't store as much power as lithium-ion batteries, but they can store about twice as much power as a single-type ultracapacitor, plus an almost unlimited number of charge/discharge cycles. Most lithium-ion batteries have only a few hundred charge/discharge cycles, while some versions that emphasize long-term effects have a charge/discharge cycle that is limited to thousands of times. However, the number of charge/discharge cycles of hybrid supercapacitors is usually several times that of their products. Ioxus' test shows that the product can be overcharged and discharged more than 20,000 times.
Hybrid supercapacitors also offer a much faster start-up power supply than the most powerful batteries available today - up to 5kW per kilogram, and other higher-priced batteries may only reach 3kW/kg. Ioxus also claims that its hybrid supercapacitors have an energy efficiency of 95%, while the best lithium-ion batteries are only 70%.
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