VTT Technical Research Centre of Finland developed an extremely efficient small-size energy storage, a micro-supercapacitor, which can be integrated directly inside a silicon microcircuit chip.
The high energy and power density of the miniaturized energy storage relies on the new hybrid nanomaterial developed recently at VTT. This technology opens new possibilities for integrated mobile devices and paves the way for zero-power autonomous devices required for the future Internet of Things (IoT).
Supercapacitors resemble electrochemical batteries. However, in contrast to for example mobile phone lithium ion batteries, which utilize chemical reactions to store energy, supercapacitors store mainly electrostatic energy that is bound at the interface between liquid and solid electrodes. Similarly to batteries supercapacitors are typically discrete devices with large variety of use cases from small electronic gadgets to the large energy storages of electrical vehicles.
The energy and power density of a supercapacitor depends on the surface area and conductivity of the solid electrodes. VTT’s research group has developed a hybrid nanomaterial electrode, which consists of porous silicon coated with a few nanometre thick titanium nitride layer by atomic layer deposition (ALD). This approach leads to a record large conductive surface in a small volume. Inclusion of ionic liquid in a micro channel formed in between two hybrid electrodes results in extremely small and efficient energy storage.
The new supercapacitor has excellent performance. For the first time, silicon based micro-supercapacitor competes with the leading carbon and graphene based devices in power, energy and durability.
Micro-supercapacitors can be integrated directly with active microelectronic devices to store electrical energy generated by different thermal, light and vibration energy harvesters and to supply the electrical energy when needed. This is important for autonomous sensor networks, wearable electronics and mobile electronics of the IoT.
VTT’s research group takes the integration to the extreme by integrating the new nanomaterial micro-supercapacitor energy storage directly inside a silicon chip. The demonstrated in-chip supercapacitor technology enables storing energy of as much as 0.2 joule and impressive power generation of 2 watts on a one square centimetre silicon chip. At the same time it leaves the surface of the chip available for active integrated microcircuits and sensors.
VTT is currently seeking a party interested in commercializing the technique.
The Latest on: Micro-supercapacitors
via Google News
The Latest on: Micro-supercapacitors
- Need more energy storage? Just hit 'print' on April 17, 2019 at 6:12 am
"But our findings show that all-MXene printed micro-supercapacitors, made with an advanced inkjet printer, are an order of magnitude greater than existing energy storage devices made from other ... […]
- Scalable synthesis of hierarchically structured carbon nanotube-graphene fibres for capacitive energy storage. on March 25, 2019 at 5:00 pm
Micro-supercapacitors are promising energy storage devices that can complement or even replace batteries in miniaturized portable electronics and microelectromechanical systems. Their main limitation, ... […]
- Tin nanocrystals for gen-next energy-storing devices on March 6, 2019 at 3:10 am
Researchers have synthesised tin nanocrystals that can be used to make micro-power systems such as micro-supercapacitors 1. These supercapacitors possess excellent abilities to charge and discharge ... […]
- Is there a micro-supercapacitor in your future? Don't bet against it on December 22, 2018 at 3:53 pm
In a paper published in the April 23, 2010 issue of the journal Science, titled “Monolithic Carbide-Derived Carbon Films for Micro-Supercapacitors,” Chmiola and Yury Gogotsi of Drexel University, ... […]
- Chinese researchers develop ultrahigh-voltage integrated micro-supercapacitors with alterable shapes on December 18, 2018 at 7:59 am
Chinese researchers have developed high voltage planar integrated micro-supercapacitors with superior flexibility. The ultrahigh-voltage micro-supercapacitors were developed by a research group made ... […]
- Chinese researchers develop ultrahigh-voltage integrated micro-supercapacitors with alterable shapes on December 18, 2018 at 12:00 am
SHENYANG, Dec. 18 (Xinhua) -- Chinese researchers have developed high voltage planar integrated micro-supercapacitors with superior flexibility. The ultrahigh-voltage micro-supercapacitors were ... […]
- 2018 Advancements in Micro-supercapacitors, Virtual Retinal Displays, Bone Conduction, and Radio Frequency - ResearchAndMarkets.com on October 22, 2018 at 2:32 am
The "Advancements in Micro-supercapacitors, Virtual Retinal Displays, Bone Conduction, and Radio Frequency" report has been added to ResearchAndMarkets.com's offering. This report profiles ... […]
- Indian scientists find faster way to fabricate flexible micro-supercapacitors on July 12, 2018 at 3:10 am
Flexible, lightweight and highly efficient micro-supercapacitors have been developed by Indian scientists, for potential use in advanced miniaturized digital devices. A team of scientists led by Prof ... […]
- Micro-Supercapacitors Could Boost Lifetime of Portable Devices on April 27, 2018 at 5:00 pm
Micro-supercapacitors could enable future geeks to go longer without recharging their smartphones or computers. Researchers have developed a way to build the energy-storing supercapacitors by using ... […]
via Bing News