Title :
The next step in low cost lithium ion polymer systems
Author :
Gross, Oliver J. ; Swoyer, Jeffrey L.
Author_Institution :
Valence Technol. Inc., Austin, TX, USA
Abstract :
The introduction of the Valence P1A system chemistry has generated the ability to significantly reduce lithium ion system material costs, while maintaining comparable electrical performance, and at no reduction to system safety over other lithium ion systems. The P1A system centers around a new phosphate-based cathode material paired with a graphite anode material. The phosphate cathode material exhibits fundamentally superior thermal stability over those for other cathode materials. The material´s fundamental chemistry and method of manufacturing lead to a reduced cathode material cost while providing electrical performance similar to that for Valence´s lithium manganese oxide (LMO) products. Since less environmentally sensitive metals are used in the PIA chemistry, the resulting battery system is more environmentally benign. These features combine with Valence´s large format (>100 mm×200 mm, 35 Wh+) lithium ion polymer manufacturing capabilities, enable lithium ion phosphate to address a significantly greater variety of applications
Keywords :
anodes; cathodes; electrochemical electrodes; electrochemistry; lithium; polymer electrolytes; safety; secondary cells; solid electrolytes; superionic conductivity; 100 mm; 200 mm; 35 Wh; Li; Li-ion secondary batteries; Valence P1A system chemistry; electrical performance; graphite anode; manufacturing; material costs reduction; phosphate-based cathode; polymer manufacturing capabilities; safety; Anodes; Cathodes; Chemistry; Costs; Electrical safety; Lead compounds; Lithium; Manufacturing; Polymers; Thermal stability;
Conference_Titel :
Battery Conference on Applications and Advances, 2002. The Seventeenth Annual
Conference_Location :
Long Beach, CA
Print_ISBN :
0-7803-7132-1
DOI :
10.1109/BCAA.2002.986385