Unexpected 5 V Behavior of Zn-Doped Mn Spinel Cathode Material
Authors:
- 1 January 2005
- journal article
- Published by The Electrochemical Society in Electrochemical and Solid-State Letters
- Vol. 8 (3) , A141-A144
Abstract
Zn-doped Mn spinel was investigated for its unique 5 V reversible Li intercalation. Only at a certain Zn doping, lithium ions can be extracted at 5 V, while at high Zn doping of no reversible capacity was observed. Electrochemical extraction of lithium ions during charge at 5 V is partially reversible. The two Zn doped compositions and 0.5 in have a single phase cubic spinel structure, possessing a primitive cubic atomic arrangement, in contrast to the face centered cubic spinel. All materials synthesized have a tetradecahedra grain structure, bonded via the hexagon facets. © 2005 The Electrochemical Society. All rights reserved.Keywords
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