Exploring two dimensional Co0.33In2.67S2.29Se1.71 as alloy type negative electrode for Li-ion battery with olivine LiFePO4 cathode. (September 2018)

• Record Type: Journal Article
• Authors: Chaturvedi, Apoorva; Morris, Samuel Alexander; Hu, Peng; Long, Yi; Kloc, Christian; Duchamp, Martial; Madhavi, Srinivasan; Aravindan, Vanchiappan
• Is Part Of: Materials today energy. Volume 9(2018)
• Page Start: 19
• Page End: 26
• Publication Date: 2018-09
• Subjects: 2 dimensional material -- Anode -- Alloying -- Energy density -- Pre-treating -- Olivine; Energy development -- Periodicals; Energy industries -- Periodicals; Power resources -- Periodicals; Energy policy -- Periodicals; Energy development; Energy industries; Energy policy; Power resources; Electronic journals; Periodicals; 621.042
• DOI: 10.1016/j.mtener.2018.04.008
• Languages: English
• ISSNs: 2468-6069

Abstract

Abstract: We report the synthesis and Li-storage properties of two-dimensional Co0.33 In2.67 S2.29 Se1.71 as an anode for Li-ion battery applications. Chemical vapour transport technique is adopted to prepare high quality Co0.33 In2.67 S2.29 Se1.71 single crystals with high yield. Li-storage properties are assessed using a half-cell configuration in which the cell is cycled in the alloying region (0.005–1 V vs. Li) that provides better characteristics than the extended region ( i.e. allowing the materials to undergo a conversion pathway) in terms of cycling stability and retention. This logically think us to evaluate the suitability of the prepared negative electrode to fabricate the practical cell i.e. full-cell with olivine phase LiFePO4 cathode. The irreversible capacity loss observed in the negative electrode is effectively tackled by using an electrochemical pre-treatment with Li and subsequently assembled the full-cell by adjusting the loading of LiFePO4 . The practical-cell, LiFePO4 /pre-treated Co0.33 In2.67 S2.29 Se1.71 displayed a very decent electrochemical activity and exhibits a maximum energy density of ∼103 Wh kg −1 (including dead mass weight). Graphical abstract: Highlights: Two-dimensional Co0.33 In2.67 S2.29 Se1.71 single crystal is prepared via chemical vapour transport. Co0.33 In2.67 S2.29 Se1.71 is evaluated as alloy type anode for Li-ion battery applications. Full-cell assembly is conducted with LiFePO4 by adjusting the mass loading. LiFePO4 /Co0.33 In2.67 S2.29 Se1.71 delivered a maximum energy density of ∼103 Wh kg −1 .