Supercapacitor

The University of Glasgow has found a way to stabilise aqueous supercapacitors, using a gum taken from the bark of an Indian tree. It’s research team started with a simple supercapacitor made from carbon-based electrodes with a sulphuric acid electrolyte. While not a commercial formulation, it is “one kind of which is mostly researched in the conventional supercapacitor literature” Jun ...

Advanced Linear Devices has introduced a voltage balancing IC for series-connected pairs of 3.3V supercapacitors. Inside is a pair of mosfet-like devices with a sharp ‘knee’ in their voltage-current characteristic. As such, they are not literally balancing, but are clamping against over-voltage and passing spare current to the other cell. Called ALD910030, “this dual mosfet provides auto-balancing capabilities and power ...

Supercapacitors are essential in energy harvesting, processing, and storage systems across various applications. As technology advances, supercapacitors are increasingly used in renewable energy, IoT devices, and more. Eaton Electronics, a leading supplier, offers a wide range of supercapacitors, from miniature components to larger modules for commercial vehicles. These components are crafted using both traditional and innovative technologies, providing versatile solutions ...

Kyocera AVX has released an on-line supercapacitor calculator for its SCC and SCM series. It takes into account discharge requirements, initial and end-of-life capacitance values, and initial and final voltage, in constant current, constant power or constant resistance modes, then offers a selection of part numbers to meet the requirements. “Users can identify recommended supercapacitor solutions ranging from single cells ...

Knowles has introduced two series of triple cell PCB-mount supercapacitor modules, based on Cornell Dubilier’s DGH and DSF series, which it now owns. DGH types work up to 8.1V (-40 to +65°C) and measure between 25 x 8.5 x 16mm high for the 330mF version, to 39 x 13 x 33mm for the 5F. They will also work up to ...

Kemet has introduced three automotive grade supercapacitors. “Optimised design and materials enable a service life of up to 1,000 hours at 85°C or 105°C, and the components meet the special requirements of the 85°C, 85% relative humidity, 1,000 hour test [‘THB test’] for the automotive industry,” according to distributor Rutronik, which is stocking the parts. “Thanks to their characteristics, the ...

E-peas has created a power IC that can mediate between two energy harvesters, a 5V charger, a power store and a load. AEM13920 can work from any combination of two sources including: photo-voltaic cells, thermo-electric generators, RF energy harvesters or kinetic pulsed sources. “For instance, a remote control could have separate PV cells on its front and rear, to maintain ...

Kyocera AVX has announced a range of high-capacity supercapcitor banks with low leakage. “SCM Series supercapacitor modules are rated for operating temperatures from -40°C to +65°C and lifetimes that extend to millions of cycles,” according to the company. “They are also lead-free compatible, RoHS compliant, and compliant with the UL 810A standard for electrochemical capacitors.” Initially there are five versions: ...

Eaton has introduced a pair of 500F sealed supercapacitor banks, replacing its earlier XLR-16R2507-R, according to component distributor Rutronik, which is stocking the new parts. They are: The 16.2V XLR16R2507B-R, which can store up to 18.2Wh and deliver up to 38.6kW or 2.19kA peak (9.6kA shorted, 121A continuous). Maximum ESR is 1.7mΩ and 5.2mA leakage is expected. The 18V XLR-18R0507B-R ...

Cornell Dubilier has introduced supercapacitor modules for use at 9, 18 or 30V. “The DSM series modules are offered in packs with 3, 6 or 10 cells in series, and capacitance values range from 0.15 to 36.6F,” according to New Yorker Electronics, which is stocking the parts. “Unlike lithium-ion batteries, there is no charge-discharge cycle degradation and no risk of ...