Projects
Projects: Projects for Investigator |
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| Reference Number | GR/S76120/01 | |
| Title | Ionic Conductivity in Crystalline Polymer Electrolytes | |
| Status | Completed | |
| Energy Categories | Other Power and Storage Technologies(Energy storage) 100%; | |
| Research Types | Basic and strategic applied research 100% | |
| Science and Technology Fields | PHYSICAL SCIENCES AND MATHEMATICS (Chemistry) 50%; PHYSICAL SCIENCES AND MATHEMATICS (Physics) 50%; |
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| UKERC Cross Cutting Characterisation | Not Cross-cutting 100% | |
| Principal Investigator |
Professor P Bruce No email address given Chemistry University of St Andrews |
|
| Award Type | Standard | |
| Funding Source | EPSRC | |
| Start Date | 01 October 2004 | |
| End Date | 31 May 2010 | |
| Duration | 68 months | |
| Total Grant Value | £511,866 | |
| Industrial Sectors | Electronics | |
| Region | Scotland | |
| Programme | Materials, Mechanical and Medical Eng, Physical Sciences | |
| Investigators | Principal Investigator | Professor P Bruce , Chemistry, University of St Andrews (99.999%) |
| Other Investigator | Dr D Tunstall , Physics and Astronomy, University of St Andrews (0.001%) |
|
| Web Site | ||
| Objectives | ||
| Abstract | There is a great deal of interest in polymer electrolytes because they hold the key to realising truly all-solid-state rechargeable lithium batteries for applications in consumer electronics, medical devices and hybrid electric vehicles. The level of conductivity achieved by amorphous polymer electrolytes has proved insufficient. Crystalline polymer electrolytes represent an exciting new direction which may yield levels of conductivity sufficient for applications. The present proposal will laya foundation of fundamental understanding concerning these materials. Such a foundation is essential if the full potential of crystalline polymer electrolytes is to be developed. For 25 years ionic conductivity in polymer electrolytes was considered to occur only in amorphous polymers above the glass transition temperature Tg, crystalline polymer electrolytes were believed to be insulators. We have helped to overturned this conventional view and have demonstrated that the crystalline polymerelectrolytes, poly(ethylene oxide)6:LD(F6, where X = P, As, Sb not only conduct but do so better than the analogous amorphous phases! This is an interesting breakthrough which defines a new direction in polymer electrolyte research. The aim of the present application is to develop a fundamental understanding of crystalline polymer electrolytes. In particular we seek to understand how ions move in these materials, especially the role of chain ends within the crystal structure, to investigate the role of doping in order to enhance ion conductivity and to study the interface formed between crystalline polymer electrolytes and electrodes typically used in lithium batteries | |
| Publications | (none) |
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| Final Report | (none) |
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| Added to Database | 01/01/07 | |
