L-Cysteine-Assisted Synthesis of Urchin-Like γ-MnS and Its Lithium Storage Properties.
L-Cysteine-Assisted Synthesis of Urchin-Like γ-MnS and Its Lithium Storage Properties.
复制标题
L-半胱氨酸辅助合成海胆状γ-MnS及其储锂性能
DOI:
10.1186/s11671-016-1664-6
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发表时间:
2016-12
影响因子:
--
通讯作者:
Di Y
中科院分区:
文献类型:
--
作者:
Xu D;Jiao R;Sun Y;Sun D;Zhang X;Zeng S;Di Y
MnS has been attracting more and more attentions in the fields of lithium ion batteries (LIBs) because of its high energy density and low voltage potential. In this paper, we present a simple method for the preparation of urchin-like γ-MnS microstructures using l-cysteine and MnCl2 · 4H2O as the starting materials. The urchin-like γ-MnS microstructures exhibit excellent cycling stability (823.4 mA h g−1 at a current density of 500 mA g−1, after 1000 cycles). And the discharge voltage is about 0.75 V, making it a good candidate for the application as the anode material in LIBs. SEM, TEM, and XRD were employed to inspect the changes of the active materials during the electrochemical process, which clearly indicate that the structural pulverization and reformation of the γ-MnS microstructures play important roles for the maintenance of the electrochemical performance during the charge/discharge process.
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