LiMnPO[sub 4] as the Cathode for Lithium Batteries
- 1 January 2002
- journal article
- Published by The Electrochemical Society in Electrochemical and Solid-State Letters
- Vol. 5 (6), A135-A137
- https://doi.org/10.1149/1.1475195
Abstract
Olivine has been produced using a new synthetic method. Reversible extraction and insertion of lithium into olivine at 4.1 V vs. lithium demonstrated that this material is a promising candidate for the cathode in lithium-ion batteries. When charged to 4.5 V, ca. 0.94 Li per formula unit can be extracted during the first charge. When charged to 4.8 V, 152 mAh/g was delivered in the first discharge. An overall reversible capacity of 140 mAh/g has been attained at room temperature. A flat two-phase region with open-circuit voltage V was identified. The thermal stability of the charged cathode was evaluated by thermogravimetric analysis and differential scanning calorimetry. © 2002 The Electrochemical Society. All rights reserved.Keywords
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