Lithium insertion into oriented microcrystals and gels of anhydrous and hydrated vanadium pentoxide

✍ Scribed by E. Andrukaitis; E.A. Bishenden; P.W.M. Jacobs; J.W. Lorimer

• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 597 KB
• Volume: 26
• Category: Article
• ISSN: 0378-7753
• DOI: 10.1016/0378-7753(89)80167-3

✦ Synopsis

Electrodes composed of pure crystalline orthorhombic Vz05 suitable for use as insertion cathodes can be prepared by electrolytic deposition of (NH&V,Oi,*H,O, or by spreading hydrated V*O, gels on graphite cloth and subsequently heating to 350 "C. The insertion of Li into these electrodes can be followed by measurements of open-circuit potential, which show clearly the phase changes that accompany Li insertion. Maximum values of 3c in Li,V205 are 1.49 for VzO, made electrochemically and 1.23 for nonstoichiometric VzO, made from a heated gel.