Cericola D.,Paul Scherrer Institute |
Cericola D.,TIMCAL Ltd. |
Kotz R.,Paul Scherrer Institute
The demand for electrochemical energy sources is nowadays extremely large and it addresses very different application, from small portable devices, over electric vehicles, to large stationary applications. The requirements for the electrochemical energy sources are therefore extremely various in terms of cost, specific power and energy, cycle life, safety. In spite of the large variety of electrochemical energy storage systems available today they may not fulfil all of the requirements requested. The need of achieving both high energy density and power density has been pointed out in the last decade and, among the different possible approaches, the hybridization of two types of electrochemical energy storage devices, rechargeable battery and electrochemical double layer capacitor, has been strongly investigated. This work reviews the different approaches to the hybridization, such as internal and external, serial and parallel and provides a collection of today's achievements. © 2012 Elsevier Ltd. All rights reserved. Source
Scocchi G.,University of Applied Sciences and Arts Southern Switzerland |
Ortona A.,University of Applied Sciences and Arts Southern Switzerland |
Grossi L.,University of Applied Sciences and Arts Southern Switzerland |
Bianchi G.,University of Applied Sciences and Arts Southern Switzerland |
And 3 more authors.
Composites Part A: Applied Science and Manufacturing
Finite element (FE) techniques can be used for the calculation of the effective properties of random heterogeneous materials, the required input simply consisting of phase properties and representative three-dimensional models of material microstructure. This approach has been widely exploited in recent years, although limited by the considerable amount of computational power required to obtain statistically accurate results. By using simple microstructural models of compression moulded polymer-graphite composites and a FE code modified for execution on graphical processing units, we show that reliable predictions of electrical properties for these materials can now be obtained in a reasonable computational time and with acceptable accuracy and precision. By using an approach based on design of experiments, we also perform a set of simulations aimed at determining the microstructural details which are most significant for the effective properties of these materials. © 2013 Elsevier Ltd. All rights reserved. Source
TIMCAL Ltd and Johnson Matthey | Date: 2012-09-19
A catalyst includes (i) a primary metal or alloy or mixture including the primary metal, and (ii) an electrically conductive carbon support material for the primary metal or alloy or mixture including the primary metal, wherein the carbon support material: (a) has a specific surface area (BET) of 100-600 m
Timcal Ltd. and Emhart Glass S.A. | Date: 2013-03-15
A system and method for coating glass gobs with a liquid-based lubricating dispersion during their drop to blank glass container molds which provides sufficient lubrication to the glass container molds without requiring swabbing of the glass container molds. The lubricating dispersion is sprayed onto hot glass gobs as they fall from the gob supply system prior to their distribution by the gob distribution system into blank molds. The lubricating dispersion coats the falling glass gobs to lubricate the glass gobs as well as the molds.
Johnson Matthey and Timcal Ltd | Date: 2014-04-02
The present invention provides use of a porous carbon material in a metal air battery, wherein the porous carbon material The present inventors have found that this porous carbon material exhibits advantageous properties such as corrosion resistance.