Journal
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume 163, Issue 8, Pages A1666-A1671Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/2.0961608jes
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Funding
- Robert A. Welch Foundation [CBM F-1436, AH F-1131]
- National Science Foundation (NSF) Integrative Graduate Education and Research Traineeship (IGERT) [0966298]
- Department of Defense (DoD) through the National Defense Science & Engineering Graduate Fellowship (NDSEG) Program
- Direct For Education and Human Resources
- Division Of Graduate Education [0966298] Funding Source: National Science Foundation
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Because lead telluride (PbTe) was found to rapidly and reversibly lithiate to form Li+-conductive Li2Te and a series of Li-Pb alloys, we explored the reversibility and rate of lithiation of PbSe. As expected, PbSe was also reversibly lithiated to Li2Se and Li-Pb alloys, but the electrode was less stable and could not be cycled as rapidly. When the electrode was cycled at a slow rate, an electroactive polymer gel film derived of the 1 M LiPF6 in 1:1 fluoroethylene carbonate/ diethyl carbonate (w/w) electrolyte built up in the initial 25 cycles. Electroreduction and electrooxidation of this film added to the capacity by as much as 300 mAh g(-1) above its theoretical value. (C) 2016 The Electrochemical Society. All rights reserved.
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