Explore How the Graphene Supercapacitor Optimize the Battery Performance?

What are supercapacitor batteries?

Supercapacitor battery, also known as electric double layer capacitor（EDLC）, is a new type of energy storage device, which is a battery that can be quickly discharged and charged in a short time. It has the characteristics of high power density, short charging time, long cycle life, wide temperature compatibility, and environmental friendly, and can be applied to a wide range of energy storage systems. Compared with activated carbon supercapacitors, graphene/activated carbon composite electrode supercapacitors have greater energy and longer life.

Advantages of supercapacitor batteries

Ø Fast energy storage and discharge capability

Supercapacitor batteries can achieve energy storage and discharge in a very short time; 

Ø High power density

Supercapacitor batteries has high power density and high energy efficiency.

Ø Long cycle life

Supercapacitor batteries can perform deep charge and discharge cycles without loss of performance. Compared with traditional batteries, supercapacitor batteries have long cycle life and low maintenance costs.

Ø Low internal resistance

The internal resistance of the supercapacitor battery is small, enabling fast charging and discharging.

Ø Safe and reliable

Supercapacitor batteries do not contain toxic and harmful substances, and have high safety and reliability.

The craft of manufacturing graphene supercapacitor battery

It's a type of energy storage system, which can be imagined as a cross between an ordinary capacitor and a battery, by combining the properties of batteries and supercapacitor structures to create supercapacitor battery in one device. In this type of energy storage, one of the carbon-based electrodes in a supercapacitor is replaced with a lithium-doped carbon electrode similar to LIB. This increases the operating voltage to 3.7 V (where standard EDLCs are rated to 2.7 V maximum, including 3.0V electric double layer capacitor) as well as the capacitance by nearly 15 times.

Prospect ahead for graphene supercapacitor battery-Keep an eye!

Supercapacitors are superior to traditional capacitors due to their ability to store and release energy; The Graphene-based Supercapacitors consist of two Graphene layers, with an electrolyte layer between them. The film is strong, thin, and can release large amounts of energy in a short time. The hybridization of Lithium-ion and Supercapacitor will drive the future energy landscape.

The Applications of Supercapacitor Battery

Ø Residential energy storage system

Widely used in residences, villas, sun rooms, load monitoring and setting.

Applicable to the application scenarios of domestic villas. In the general mode, the load consumes photovoltaic power first, followed by the battery, and finally the grid; photovoltaic power is given priority to the load, and the remaining power is used to charge the battery when it meets the needs, and finally there is ample power. It will be fed back to the power grid; in backup mode, the power of the energy storage battery is only used when the power grid is cut off; in economic mode, the charging and discharging time can be set, the battery is charged at night, released during the day, and used for peak peaks. It should be noted that the back-up output of the device does not support access to power; the installation position of the meter and Current Transformer should be noted that the direction of the CT always points to the grid, and its position in the system determines the size of the entire load.

Ø Commercial & Industrial Projects

Industrial and commercial energy storage refers to the energy storage equipment equipped on the power consumption side of office buildings, factories, etc. Its main goals include self-use, as a backup power supply, improving the reliability of power supply and energy quality for users; peak-valley price difference arbitrage, participation in the electricity market, etc. Get benefits.

Ø Island project (pure off-grid project)

When the power grid is disconnected, the on grid power is cut off, and the speed of the device is <10ms to switch modes to ensure the normal use of important loads at the back-up end.

Ø Solar Storage Project

The significance of the solar storage charging project is to reduce the dependence on the distribution network of the project through the power provided by the solar storage.

Ø Telecom station application project (with grid)

The communication base station is usually built in a remote location, and the power quality of the power grid is not high. At this time, in order to meet the uninterrupted power demand, the load can be connected to the back-up terminal, and the energy storage machine is set to the backup mode. The power supply grid is supplemented, and the battery power supply is switched in case of emergency power failure.