Abstract: A device has a voltage source, an electric conductor connected to an electric pole of the voltage source and acting as an electrode, and a substrate arranged in an electromagnetic field which is formed in the vicinity of the electric conductor when the voltage source is active.
Supercaps provide advantages over batteries for many applications. David Wright, Director of Application Engineering, talks to technology editor Bill Wong about supercaps and how the variety of form factors allow them to be used in all sorts of places.
In the race to develop the perfect energy storage solution, ultracapacitors are an exciting horse to bet on. They deliver energy quickly, can be recharged in seconds, and have a long life span — but their capacity for storing energy is limited. An MIT startup company has now unveiled a novel version that can store twice as much energy and deliver about 10 times as much power as a conventional device can...
Interested in energy harvesting, also known as power harvesting or energy scavenging? Here is a collection of the Design Articles, Case Studies, Product How-To articles that have been published on Smart Energy Designline and, in some cases, Power Management Designline over the last few years.
Graphene is a two dimensional material consisting of a single layer of carbon atoms arranged in a honeycomb structure. It is one of the strongest known materials, but also one of the thinnest. It has a high electrical conductivity along with light weight. Based on these features, there has been a high degree of research performed in the last few years on the use of these materials for future electrode manufacturing in the ultra capacitor market. Ultra capacitors, also known as Super capacitors or Electrochemical Capacitors are passive electronic devices capable of storing electrical charge and delivering it at a high rate. Because of its high power density, these devices are finding their way into many common applications from industrial, to automotive and consumer electronics. Tecate Group, being one of the leaders in the super capacitor market, provides a variety of standard and custom super capacitor cells and modules to satisfy the peak power and back-up requirements for these, and many other applications.
Johnson Controls (JCI) released the results of a nationwide survey that found that 97 percent of Americans are ready for micro-hybrids with stop-start idle elimination, the most sensible automotive innovation in years.
One day, donning a T-shirt could mean you're also sporting a smart device charger. Engineers have successfully transformed cotton into a flexible, highly conductive component, which means it could charge devices.
The idea to use supercapacitors is crucial in a world where weight is the enemy and quick charging versus quick bursts of electron boosts are key to squeezing extra fraction of seconds with accelerations. Supercapacitors, or ultracapacitors, unlike their heavier lithium battery counter parts are very light with the capacity to charge and discharge very quickly.
By monitoring the capacitance and ESR levels of up to 5 individual series connected supercapacitors, or a 9 cell stack, the new TI chip optimizes battery and supercapacitor performance and life. Tecate Groups supplies a host of supercapacitor cells, as well as multi cell modules in both standard and custom configurations.
The cycle life of ultracapacitors is in excess of 500,000 cycles and can be sized to last the life of the product. Batteries typically require replacement in 2-3 years. This makes ultracapacitors an ideal choice as a source of back-up power when primary power interruptions occur. The ultracapacitors, also known as Electric Double Layer Capacitors (EDLC) provide energy source to allow various medical equipment to safely shutdown. Tecate Group offers an array of ultracapacitor cells, and both standard and custom modules, to suit a variety of back-up power needs.
With increasing recognition as a reliable “green” alternative to batteries, with zero maintenance, ultra capacitors, also known as Electric Double Layer capacitors (EDLC), are finding acceptance in many Industrial and Transportation applications.
Ultra capacitors coupled with non volatile flash memory, allow the elimination of battery backed RAID adapters. This addresses the green issues associated with battery hazardous waste disposal as well as eliminating the need for battery replacement/maintenance. The EDLC capacitors, also known as ultra capacitors or super capacitors can be sized for the life of the system, and feature a wide temperature range and a cycle life of up to 500K cycles.
Continued advances in electrode materials offering increased porosity and increased surface area will increase the energy density of ultracapacitors. Coupled with alternative electrolytes, this promises to allow ultracapacitors, also known as super capacitors, to achieve energy densities that will compete with today’s Lithium Ion batteries.
The CAP-XX series of super capacitors, also known as Electric Double Layer Capacitors (EDLC), provide the pulse power support, based on the very low ESR and high capacitance available in their extremely low profile package.
Utilizing the benefits of NAND flash memory and a back-up power supply that runs on ultra capacitors, also commonly referred to as super capacitors or EDLC capacitors, it is possible to eliminate the maintenance costs, system vulnerabilities and downtimes associated with battery backed systems.
Ultra capacitors continue to find new markets as their unique attributes for almost endless cycle life and quick power delivery allow them to replace and/or supplement batteries in a host of applications ranging from Enterprise server cache memory back-up to regenerative braking on city busses.
Energy storage devices, such as ultracapacitors, also known as supercapacitors, fill a niche by delivering short term back-up power quickly, due to the low ESR of the devices. Several other technologies continue to compete for the dynamic energy requirements of the smart grid.
The Tecate Group PC5 ultracapacitor has been recognized by Electronic Design News in their Top 101 Components list, in the Power Source category. The PC5 comes in at number 3! The PC5 is a prismatic 4.0F, 2.5V ultracapacitor that provides excellent short term power back-up, in an extremely low profile package. The PC5 is also used as a building block to create super capacitor modules at voltages ranging from 5 to 25V, and custom modules in even higher voltages. These super capacitor modules consist of the PBF and PB series of Tecate PowerBurst products.
The use of ultracapacitors has expanded over the last 5 years. From where small format cells were used in digital electronics for backup, today we see high power ultracapacitors being used as the main energy source for a variety of applications including driving a city bus. In the video below the use of these devices as the main energy source in an all electric bus is discussed.
The use of ultra capacitors in Uninterruptible Power Supplies (UPS) provides benefits beyond today’s systems that use conventional battery back-up. Tecate offers many ultra capacitor cells with values ranging from 100 mF to up to 3000F cells. As these cell voltages are low, on the order of 2.5 to 2.7V, it is necessary to connect in series or series/parallel. Tecate Group has engineers on staff who can work with designers to develop custom ultracapacitor modules to meet unique electrical and mechanical system requirements, through innovative circuit and packaging proposals. Read more on ultra capacitors and UPS in the link below.
Ultracapacitors are finding their way into a myriad of new applications, where they provide a longterm reliable source of short term back-up power in environments that do not lend themselves to the maintenance demands, and disposal requirements, of batteries. Tecate Group provides a variety of ultracapacitor cells and modules, both custom and standard, that can open the door to designers looking for non battery power back-up. See complete article link below.
The world of mobile handsets are becoming more power hungry as new features are added. Batteries are the backbone of the main energy source in these applications, but they cannot satisfy all the power demands. Today Supercapacitors or Ultracapacitors are becoming a tandem partner of batteries in these applications. Tecate Group offers a variety of low profile ultracapacitor cells and modules geared to the mobile handheld arena. These Powerburst products can be used in tandem with Li-ion batteries to satisfy the power requirements of many applications including smart phones and other consumer products. For an informative article on the benefits and challenges of combining ultracapacitors and batteries refer to the link below:
Batteries have always showed a limitation when it comes to power. One solution that has worked and is currently being investigated is the combination of batteries with ultracapacitors. Tecate Group offers a wide variety of ultracapacitor products ranging from several farad to several thousand of farads. These PowerBurst® products can be used individually or in custom modules to fit any battery voltage desired for a variety of applications ranging from hybrid vehicles to AMR, RAID controllers and consumer electronics. For more information on the benefits of combining ultracapacitors and batteries in an electric vehicle please refer to the following article linked below:
As ultracapacitor technology continues to move forward the breadth of applications continues to expand. Tecate Group offers standard and customPowerBurst® ultracapacitor cells and modules to support applications as diverse as providing seconds of back-up for a RAID controller that needs to save critical information from volatile to non-volatile memory, in the event of a power loss, to large modules using Tecate’s patented integration system, using the Maxwell Boostcap® ultracapacitor cells, that range from 650-3000F. These large modules are especially effective in cold engine start applications, where battery performance is dramatically diminished. For more on ultracapacitors please refer to the link below:
Ultracapacitors offer the unique ability to provide power to portable devices almost instantaneously. These power delivery capabilities are forecast to change the future landscape of how we charge all our tiny gadgets….. wirelessly! CAP-XX and PowerBurst® super capacitors sold through Tecate Group, are already used in several portable electronic gadgets and wireless remote sensing applications and are well positioned to support the trend toward the use of super capacitors, in conjunction with inductive technology, to charge devices wirelessly over short distances. For the complete story follow the below link:
"Ultracapacitors are super high capacity versions of electric capacitor components that store energy in an electric field. These are devices that have raised the “capacity” of a capacitor so high that ultracapacitors or “supercapacitors” are now thought of as energy storage devices that can replace batteries in some applications. They are available in various cylindrical, square, and flat shapes and sizes. With increasing production volumes and economies of scale, their prices can be competitive with batteries."