New Fabrication Strategies for Polymer Electrolyte Batteries.
NORTHWESTERN UNIV EVANSTON IL DEPT OF CHEMISTRY
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The current approaches to the fabrication of solid state lithium cells are based on mechanically joining discrete layers of electrodes and electrolytes. The individual layers are typically produced by a variety of processing techniques. Lithium foil is produced by rolling, and polymer electrolytes and anode films are often formed by doctor blade methods. The films are then laminated together and sealed in an air tight case. Lithium is sensitive to oxygen, nitrogen and moisture, so considerable care is necessary to exclude these contaminants in the fabrication process. The objective of this research was to fabricate lithium-polymer batteries by techniques that may produce a thin electrolyte and cathode films and with minimal contamination during fabrication. One such technique, ultrasonic spray was used. Another objective of this research was to test lithium cells that incorporate the new polymer electrolytes and polyelectrolytes.
- Electrochemical Energy Storage
- Manufacturing and Industrial Engineering and Control of Production Systems