The Universitat Jaume I presents two patents related to battery service life and gels more resistant to high temperatures



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## The Universitat Jaume I presents two patents related to battery service life and gels more resistant to high temperatures They are part of the Bank's Patent Region of Valencia

02/07/2013 |
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* [![Investigació UJI patents investigacio_uji](/com/noticies/2013/07/1q/patents/investigacio_uji.jpg)](#)

New electrolytes based on ionic liquids that prolong the service life of solar cells and batteries, and a new family of compounds which can develop gels more resistant to high temperatures and are capable of acting with a variety of organic solvents are the two patents that the Universitat Jaume I has presented at the First Forum for Technology Transfer held last week in Valencia.

In the patent on new electrolytes, researchers from CIDETEC in the Basque Country and the Photovoltaic and Optoelectronic Devices Group at the UJI have discovered a new family of ionic liquids that produce electrolytes that improve the performance, stability and durability of electrochemical and electronic devices, such as solar cells or batteries. These materials have the peculiarity of presenting sulphide or polysulphide, a non-volatile ionic liquid that has high ion conductivity and enables to use it at much higher temperatures.

This technology, as explained by the lecturer Joan Bisquert during the presentation, has a promising field of application in the manufacture of batteries with higher energy density. Faced with ion-lithium batteries, the batteries based on lithium-sulphur provide a three times higher autonomy, but without increasing their size and weight, and with a lower cost. Solar cells are also presented as an attractive alternative to reduce production costs, improving aspects such as stability and durability to make them more profitable, and turning photovoltaic electricity into a safe, clean and sustainable choice. Their areas of application are framed in the field of materials technology and chemistry, specifically in electrochemical solar cells, lithium-sulphur batteries, electrochromic devices, electrochemical biosensors or electrodeposition coating materials.

The patent on new organojellifying gels, developed by the Sustainable Chemistry group led by the lecturer Santiago Luis, is a new family of organojellifying compounds with low molecular weight that are capable of producing jellification in a wide range of organic solvents. The invention, as explained by the lecturer María Isabel Burguete at the Forum, is useful in the field of cosmetics and in pharmaceutical and food product industries, since in all three cases it is important to maintain the stability of gels when the products that contain them are transported in relatively high temperature conditions. It could also be applied in biomedical medicine and in clinical biochemistry, or related areas, to prepare smart materials and materials that can be applied in analytical processes or in the preparation of electronic devices.

One advantage of these organojellifying compounds is that they are quick and easy to synthesize, and they have a high end performance and easy scaling. Moreover, the basic chemical structures that make up these compounds are amino acids, very similar to proteins or peptides, although simpler and smaller, that enable the products to be biocompatibles in most cases. In addition to all these advantages, its gelling action takes place with the addition of very small quantities, below 1% for the corresponding solvent, and so these compounds are very inexpensive.

Videonews:

<http://blogs.uji.es/cienciatv/en/2013/07/02/the-uji-presents-two-patents-related-to-battery-service-life-and-gels-more-resistant/>

<http://blogs.uji.es/cienciatv/en/2011/11/24/uji-patents-a-compound-capable-of-forming-more-efficient-gels/>

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