Super capacitor (EDLC) is also called super capacity capacitor, capacitors, farad capacitors, gold or gold electric double layer capacitor, is a kind of long life and high reliable energy storage electric device, more can be on the market at present there are more than 500000 times cycle life, more than 10 years service life, high reliability, functional and good high and low temperature properties, A product that can be used normally at minus 30 to over 70 degrees Celsius. Due to the great temperature difference in different parts of China, ultracapacitors are often used in power systems under harsh conditions.

In 2008, the total size of China's ultracapacitors has reached 860 million yuan, and in recent years, it is growing at a more rapid speed. Due to the broad application prospect of this field, ordinary technical strength and industrialization capacity can no longer meet the needs of high-end market. Murata Manufacturing Institute (China) (hereinafter referred to as: Murata) has developed products with small installation area, high voltage bearing capacity and high temperature resistance to solve this problem. It can be used not only as an auxiliary power source for LED flash in digital cameras, but also as a backup power source for controllers and memory in control devices such as smart meters.

  

EDLC usually includes four parts: double electrode, electrolyte, fluid collector and isolation section. Currently, the common types of EDLC in the market include button type, canning type, prism type and laminated type structure. Among them, laminated structure has become the trend of high-end market development due to its characteristics of large electric storage, long cycle service life, high charging and discharging speed and wide range of use.

Compared with ordinary EDLC, MURata DMF and DMT series have more advantages in packaging technology compared with current products on the market. One: ultra-thin, product thickness of 2.5~4.0mm. Second: high output, low ESR. Rated voltage 4.2V(there are also 5.5V series), ESR is 30-130m ω, it can be said that such a low ESR in the industry is countable. Murata achieves ultra-low ESR by using the most suitable electrode material and construction. It can charge and discharge up to 10 amps and achieve ultra-low ESR at both high and low temperatures.

In addition to the advantages of ultra-thin package, high current discharge and constant power discharge, the advantages of Murata EDLC are high temperature guarantee (ordinary EDLC can only be used between -30 ℃ and +70 ℃, while Murata can ensure normal operation between -30 ℃ and +85℃), ultra-low leakage current, and high reliability (advanced package, long life, Low leakage) and so on.

The following figure shows the variation characteristics of ESR and capacity of Murata'S EDLC at different temperatures.

As a new energy storage device, EDLC can replace traditional energy storage batteries in many fields. Today, energy conservation and environmental protection are increasingly valued, and the application of EDLC is also paid more attention to and increasingly extensive. EDLC is applied in different fields and industries, which may be indistinguishable by naked eyes. However, the absence of EDLC will bring multiple inconvenience to our life.

First, Murata's EDLC can be applied to high-power data backup in case of power failure, such as enterprise-level SSD, server, switch and other applications.

Second, Murata EDLC is used in LED flash, motor drive and other devices that need large current discharge at a moment to assist peak output. Below is a comparison of two unused and EDLC LED flash bulbs.

【 note 】

Murata was founded in October 1944, but the company was founded in 1950. The first product was based on the chaotic post-war era, when radio was the only source of entertainment and information. Compared with the previous super regenerative mode, super heterodyne radio with outstanding performance has been rapidly popularized. Our first product, a cylindrical magnetic capacitor used for temperature compensation in this radio, uses titanium oxide as a medium and uses a pen to coat the surface of the electrode material. The electrostatic capacity is 500pF.

In the year to March 2013, murata, total turnover reached 681.021 billion yen, individual turnover reached 535.155 billion yen, in a constantly changing market demand, the globalization progress quickly bin penguin emerging markets growing environment, murata and dramatically change the maelstrom, also requires that enterprises should adapt to change quickly. What remains unchanged is murata's business philosophy. As the "Innovator in Electronic", the company should continue to surprise and move customers and the market. At the same time, the company also needs continuous development. Including materials. Product design and process design of production equipment and product manufacturing site as a whole, Murata will further enhance the essential strength of manufacturing, to contribute to the development of the world electronics industry.

For Murata's EDLC, we can summarize as follows:

Because of its large capacity, the EDLC can be used as an energy supply device, as a backup power source, or to provide power for peak power output. Unlike batteries, the potential of EDLC decreases with discharge. In general, when the temperature drops 10° , the life of EDLC will double. EDLC has two decay forms, one is electrochemical system decay, the other is evaporation of electrolyte resulting in drying. In both cases, the ESR goes up and the electrostatic capacity goes down. For long-term and reliable use of EDLC, close attention must be paid to the temperature conditions in which it operates. That's why Murata's EDLC is so important because it can work at high temperatures. The following are the features of murata EDLC:

Low ESR, high discharge efficiency

High pressure, large capacity

Small and thin packaging technology

Ultra low leakage current

The ESR also has a very low service life at low temperature

Recycled over 100,000 times

Remark:

EDLC stands for Electric Double Layer Capacitor

ESR stands for Equivalent Series Resistance

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