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Micro supercondensadores con alta densidad de energía y excelente ciclabilidad

Resumen

Tipo:
Oferta Tecnológica
Referencia:
TOES20160211001
Publicado:
29/02/2016
Caducidad:
28/02/2017
Resumen:
Investigadores españoles y franceses han desarrollado recientemente un nuevo tipo de electrodo que puede utilizarse en micro supercondensadores de alta densidad de potencia. Los micro supercondensadores son dispositivos miniaturizados de almacenamiento electroquímico de energía que pueden ofrecer densidades de potencia de varios órdenes de magnitud mayores que las que ofrecen las baterías y supercondensadores convencionales. Los micro supercondensadores se utilizan para fabricar dispositivos electrónicos tales como sensores-actuadores, microsistemas de recolección de energía, sistemas de comunicaciones inalámbricas y buffers de baja potencia como memorias de acceso aleatorio y tarjetas de ordenadores. Se buscan fabricantes de dispositivos electrónicos, baterías y supercondensadores para licenciar la patente o establecer acuerdos de colaboración.

Details

Tittle:
Micro-supercapacitors with high energy density and excellent cycling stability
Summary:
Spanish and French researchers have recently developed a novel type of electrode material that they have used as part of high power density micro-supercapacitors.Micro-supercapacitors are miniaturized electrochemical energy storage devices which can offer power densities several orders of magnitude larger than those of conventional batteries and supercapacitors. Manufacturers of electronic devices, baatteries and/or supercapacitors are being sought for patent license or collaboration agreement.
Description:
Energy storage is in the midst of a revolutionary change which will turn it into a key factor within the upcoming sustainable energy model.
Micro-supercapacitors are miniaturized electrochemical energy storage devices which can offer power densities several orders of magnitude larger than those of conventional batteries and supercapacitors due to their short ion diffusion lengths.
The novel electrode is based on silicon nanowires and a nanostructured oxide coating (for improved energy density) that permits it to be used for
energy storage either as part of a micro-supercapacitor or as anode in a Lithium-ion battery, both with excellent cycling stability.
Thanks to the use of these robust electrode materials and ionic liquid electrolytes the micro-supercapacitors are able to stand harsh reflow conditions (280ºC for 40 seconds) which are specific operationalconditions for many manufacturing electronic devices such as sensors-actuators, energy-harvesting microsystems, wireless communications systems and low-power buffers like random access memories and computer cards. They could also find use in any other application where very
robust, sturdy and long-lasting devices are needed such as in microsatellites, street lights, drones, aerospace systems or power emergency actuators (defribillators).
Advantages and Innovations:
The novel electrode is based on silicon nanowires and a nanostructured oxide coating (for improved energy density) that permits it to be used for energy storage either as part of a micro-supercapacitor or as anode in a Li-ion battery, both with excellent cycling stability.
Thanks to the use of these robust electrode materials and ionic liquid electrolytes the micro-supercapacitors are able to stand harsh reflow conditions (280ºC for 40 seconds) which are specific operational conditions for manufacturing electronic devices.

The novel technology presents:
- A high power with enhanced energy density (maximum energy density of 9.1 -Y-micro;Whcm-2 which is between 3 and 10 time that of competing.
- Faster charge/discharge than conventional batteries and high lifetime.
- Efficient cyclability (stabilized >90% after 5000 cycles).
- Easy and direct integration into other miniaturized electronic devices such as sensors-actuators or energy-harvesting microsystems providing excellent 20 nano-/micro-scale peak power.
- Possibility to be used as part of asymmetric capacitator.
- They could also find use in any application where very
robust, sturdy and long-lasting devices are needed like microsatellites, street lights, drones, aerospace systems, power emergency actuators and/or defibrillators.
Stage of Development:
Available for demonstration
IPs:
Patent(s) applied for but not yet granted
CommeR Statunts Regarding IPR Status:
In priority year

Partner sought

Type and Role of Partner Sought:
Manufacturers of supercondensators, batteries or electronic devices are sought for patent license or collaboration agreement.

Client

Type and Size of Client:
R&D Institution
Already Engaged in Trans-National Cooperation:
No
Languages Spoken:
English

Keywords

Technology Keywords:
04007001 Gestión de la energía
04001003 Storage of electricity, batteries