TechConnectWorld 2011 Conference and Expo TechConnect World 2011 Nanotech 2011 Clean Technology 2011 Microtech 2011 Bio Nanotech 2011 TechConnect Summit and Expo 2011

Study of the factors effect on the power storage and generation of a nano-biomimetic membrane electrode-assembling (NBMEA) for battery/fuel cell dual applications

E.T. Chen, C. Ngatchou
Advanced Biomimetic Sensors, Inc., US

Keywords: electrolyte-free and air-independent battery/fuel cell dual utility technology, nanostructure biomimetic membrane electrode assembling (NBMEA)

Abstract:

An unmet need has been identified: a high power and high energy density system that is environmentally safe and economically affordable is in urgent need. E. Chen’s group recently reported an innovative approach: using an electrolyte-free and air-independent membrane electrode assembling (MEA) to overcome the drawbacks of the current battery and fuel cell technologies ( E. Chen and R. Fenkelstien, Development of an Electrolyte-free, Oxygen-free, High-Performance, Single-Cell, Direct Methanol Fuel Cell (DMFC) on the 44th Proceedings of Power Sources Conference, 333-336, 2010). From a laboratory discovery to a commercial application is challenge under the conditions of no refueling, no catalyst and no CO2 or water emission. Membrane thickness and cell temperature effect on the MEA performance were studied. Results from six 0.5 cm2 single DMFC cells were presented. The cells were capable at a steady-state discharge of 50 mA for 12 hrs at 25ºC, 55ºC and -20ºC, with a nominal voltage of 6.7, 5.3, and 3.5V, respectively. The highest power density at room temperature is 2.43 kW/kg with the energy density of 24 kW.h/kg. All cell current density is 100 mA/cm2 regardless of the change of temperature. The charge vs. discharge efficiency results are among 90%.
 
 
Sessions Monday Tuesday Wednesday Thursday Authors Keywords Affiliations Search

TechConnect World 2011 Nanotech 2011 Clean Technology 2011 Microtech 2011 BioNanotech 2011 TechConnect Summit 2011
2011 Events | Program | Speaker | Short Courses Sponsor Exhibit/Showcase Press Venue Register
Subscribe | Contact | Site Map
© Copyright 2010 TechConnect World. All Rights Reserved.