NIMTE OpenIR  > 2018专题
High ion conductive Sb2O5-doped beta-Li3PS4 with excellent stability against Li for all-solid-state lithium batteries
Xie, Dongjiu; Chen, Shaojie; Zhang, Zhihua; Ren, Jie; Yao, Lili; Wu, Linbin; Yao, Xiayin; Xu, Xiaoxiong
2018
Source PublicationJOURNAL OF POWER SOURCES
Volume389Pages:140-147
AbstractThe combination of high conductivity and good stability against Li is not easy to achieve for solid electrolytes, hindering the development of high energy solid-state batteries. In this study, doped electrolytes of Li3P1-xSbxS4-2.5xO2.5x are successfully prepared via the high energy ball milling and subsequent heat treatment. Plenty of techniques like XRD, Raman, SEM, EDS and TEM are utilized to characterize the crystal structures, particle sizes, and morphologies of the glass-ceramic electrolytes. Among them, the Li3P0.98Sb0.02S3.95O0.05 (x = 0.02) exhibits the highest ionic conductivity (similar to 1.08 mS cm(-1)) at room temperature with an excellent stability against lithium. In addition, all-solid-state lithium batteries are assembled with LiCoO2 as cathode, Li10GeP2S12/Li3P0.98Sb0.02S3.95O0.05 as the bi-layer electrolyte, and lithium as anode. The constructed solid-state batteries delivers a high initial discharge capacity of 133 mAh g(-1) at 0.1C in the range of 3.0-4.3 V vs. Li/Li+ at room temperature, and shows a capacity retention of 78.6% after 50 cycles. Most importantly, the all-solid-state lithium batteries with the Li10GeP2S12/Li3P0.98Sb0.02S3.95O0.05 electrolyte can be workable even at - 10 degrees C. This study provides a promising electrolyte with the improved conductivity and stability against Li for the application of all-solid-state lithium batteries.
KeywordUltralong Cycle Life Superionic Conductors Glass-ceramics Electrolytes Li10gep2s12 Li2s-p2s5 Strategy Li3ps4 Anode
Subject AreaChemistry ; Energy & Fuels ; Materials Science
Language英语
Document Type期刊论文
Identifierhttp://ir.nimte.ac.cn/handle/174433/17389
Collection2018专题
Recommended Citation
GB/T 7714
Xie, Dongjiu,Chen, Shaojie,Zhang, Zhihua,et al. High ion conductive Sb2O5-doped beta-Li3PS4 with excellent stability against Li for all-solid-state lithium batteries[J]. JOURNAL OF POWER SOURCES,2018,389:140-147.
APA Xie, Dongjiu.,Chen, Shaojie.,Zhang, Zhihua.,Ren, Jie.,Yao, Lili.,...&Xu, Xiaoxiong.(2018).High ion conductive Sb2O5-doped beta-Li3PS4 with excellent stability against Li for all-solid-state lithium batteries.JOURNAL OF POWER SOURCES,389,140-147.
MLA Xie, Dongjiu,et al."High ion conductive Sb2O5-doped beta-Li3PS4 with excellent stability against Li for all-solid-state lithium batteries".JOURNAL OF POWER SOURCES 389(2018):140-147.
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