Power sources for portable electronics and hybrid cars: lithium batteries and fuel cells

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Abstract
The activities in progress in our laboratory for the development of batteries and fuel cells for portable electronics and hybrid car applications are reviewed and discussed. In the case of lithium batteries, the research has been mainly focused on the characterization of new electrode and electrolyte materials. Results related to disordered carbon anodes and improved, solvent‐free, as well as gel‐type, polymer electrolytes are particularly stressed. It is shown that the use of proper gel electrolytes, in combination with suitable electrode couples, allows the development of new types of safe, reliable, and low‐cost lithium ion batteries which appear to be very promising power sources for hybrid vehicles. Some of the technologies proven to be successful in the lithium battery area are readapted for use in fuel cells. In particular, this approach has been followed for the preparation of low‐cost and stable protonic membranes to be proposed as an alternative to the expensive, perfluorosulfonic membranes presently used in polymer electrolyte membrane fuel cells (PEMFCs). © 2005 The Japan Chemical Journal Forum and Wiley Periodicals, Inc. Chem Rec 5: 286–297; 2005: Published online in Wiley InterScience ( www.interscience.wiley.com) DOI 10.1002/tcr.20054