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Nanocomposite de bajo coste con mejores propiedades de capacitancia para electrodos de baterías y supercapacitores

Resumen

Tipo:
Oferta Tecnológica
Referencia:
TOES20161020001
Publicado:
24/10/2016
Caducidad:
21/10/2017
Resumen:
Una universidad española ha desarrollado un nanocomposite con mejores propiedades supercapacitivas que se emplea en electrodos para supercapacitores y baterías. Este material, además de utilizarse con fines de almacenamiento de energía, también tiene aplicaciones potenciales en nanotecnología, electrónica o ciencia de materiales. El nuevo nanocomposite tiene unas excelentes propiedades supercapacitivas gracias a la aplicación de un paso galvanostático en presencia de un campo magnético externo durante el proceso de producción, que permite obtener un material mucho más activo desde el punto de vista supercapacitivo. El grupo de investigación busca fabricantes de baterías y supercapacitores con el fin de establecer acuerdos de licencia o cooperación técnica.

Details

Tittle:
Low-cost nanocomposite material with enhanced capacitance properties for use in electrodes for batteries and supercapacitors
Summary:
A Spanish university has developed a cost-effective nanocomposite material with improved supercapacitive properties to be employed in electrodes for supercapacitors and batteries. Apart from energy storage, the material also shows a wide range of potential applications in nanotechnology, electronics, or materials science. The research group is interested in license or technical cooperation agreements with companies producing batteries and/or supercapacitors.
Description:
The rapid increase in energy demand in recent years has accelerated the search for low-cost alternatives for energy storage and conversion. Among others, supercapacitors are an important type of energy storage devices since they store high energy density in short periods of time with the ability to repeat many charge-discharge cycles without losing efficiency. The appropriate selection of the electrodes is decisive in this type of device; the selected material must have a high specific surface, precise pore size distributions, thermal stability and stable electrochemical behaviour. Nanocomposite materials for energy storage applications are becoming of great interest due to the properties provided by its different constituents. Among possible nanocomposites that are being currently synthesized, those from layered double hydroxides (LDH) are attracting particular attention, especially carbon and metal oxides nanocomposites due to their potential applications in electrochemical devices such as supercapacitors. However, most new materials investigated turned out to be unfeasible from the commercial standpoint, due to its high cost and complexity of manufacture.

Researchers from a Spanish university have obtained new nanocomposite material with excellent supercapacitive properties by applying a galvanostatic step in the presence of an external magnetic field during the production process which renders a material much more active from the supercapacitive point of view. The nanocomposite is obtained through a simple, one-step and low temperature synthetic process, and from highly available and low cost materials. This material, electrochemically very active, shows an increase of capacitance much higher than those obtained without the application of the magnetic field (almost 600% more). These increases of capacitance are permanent and are still observed even in the absence of a magnetic field after their generation.

The new nanocomposite material is useful for all those devices that require materials with supercapacitive properties. Supercapacitors (or ultracapacitors) are mainly used for energy storage: "energy smoothing" and momentary-load devices, KERS (Kinetic Energy Recovery System) devices used in vehicles, replacing batteries for specific cases, smaller applications like home solar energy systems, etc. Thus, it has an extremely wide range of potential applications in materials science, electronics, and nanotechnology.

The companies looked for should be active in the fabrication of batteries and supercapacitors The university is mainly interested in license agreement including testing of applications, adaptation to specific needs, production and marketing. However, the research group are also open to technical cooperation agreement for further develope the material.
Advantages and Innovations:
The most innovative aspect of this invention is that the material shows an increase of capacitance much higher than those obtained without the application of the magnetic field (almost 600% more).

While, the main advantages provided by the developed nanocomposite material are:
- Low cost: chemical process of a single step with a single precursor, at low temperature, and using available, non-polluting and economical materials.
- Supercapacitor application: suitable properties for use in electrodes for batteries and supercapacitors, since it shows 600% more capacitance than materials obtained without the application of the magnetic field.
- Good cyclability: testing in cyclability is promising in terms of electrochemical and mechanical stability. After 10000 cycles only 10% of material degradation has been observed.
Stage of Development:
Under development/lab tested
IPs:
Patent(s) applied for but not yet granted
CommeR Statunts Regarding IPR Status:
Spanish patent application

Partner sought

Type and Role of Partner Sought:
Enterprise in the specific area of advanced materials, nanotechnology, energy storage etc., for licensing the invention, testing of applications, adaptation to specific needs, production and marketing.

Client

Type and Size of Client:
University
Already Engaged in Trans-National Cooperation:
No
Languages Spoken:
English
Spanish

Keywords

Technology Keywords:
04001 Almacenamiento y transporte de energía
04008003 Micro y nanotecnología relacionada con la energía
01002007 Nanotechnologies related to electronics & microelectronics
02007 Tecnología de materiales