Lithium intercalation in Na1+xV3O8 synthesized by a solution technique

✍ Scribed by M. Pasquali; G. Pistoia

• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 788 KB
• Volume: 36
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(91)85005-r

✦ Synopsis

Na , +xV,O, has been synthesized with a simple precipitation technique. Its performance as a cathode for rechargeable Li cells is far superior to that of the analogous material prepared at high temperature in terms of specific capacity and rate capability. As a result of the possibility of intercalating about 4.5 Li+ mol-', low temperature Na, +x )

V 0 has a theoretical energy density of 900 Wh kg-i. The s diffusion coefficients, measured by impedance spectroscopy, have values of 1O-8-1O-9 cm2s-', this matching the fast kinetics observed. A comparison is made of the performance of this new material with that of Li, +xV,O, prepared with the same technique.