Enhanced electrochemical properties and interfacial stability of poly(ethylene oxide) solid electrolyte incorporating nanostructured Li 1. 3 Al 0 . 3 Ti 1 .7 ( PO 4 ) 3 fillers for all solid state lithium ion batteries

International Journal of Energy ResearchVolume 45, Issue 5 p. 6876-6887 RESEARCH ARTICLE Enhanced electrochemical properties and interfacial stability of poly(ethylene oxide) solid electrolyte incorporating nanostructured Li1.3Al0.3Ti1.7(PO4)3 fillers for all solid state lithium ion batteries Erqing Zhao, School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang, ChinaSearch for more papers by this authorYudi Guo, Corresponding Author guoydhappy@126.com orcid.org/0000-0003-4488-8059 School of Chemistry and Materials Engineering, Xinxiang University, Xinxiang, China Correspondence Yudi Guo, School of Chemistry and Materials Engineering, Xinxiang University, Xinxiang 453003, China. Email: guoydhappy@126.comSearch for more papers by this authorYuan Xin, School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang, ChinaSearch for more papers by this authorGuangri Xu, School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang, ChinaSearch for more papers by this authorXiaowei Guo, School of Chemistry and Materials Engineering, Xinxiang University, Xinxiang, ChinaSearch for more papers by this author Erqing Zhao, School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang, ChinaSearch for more papers by this authorYudi Guo, Corresponding Author guoydhappy@126.com orcid.org/0000-0003-4488-8059 School of Chemistry and Materials Engineering, Xinxiang University, Xinxiang, China Correspondence Yudi Guo, School of Chemistry and Materials Engineering, Xinxiang University, Xinxiang 453003, China. Email: guoydhappy@126.comSearch for more papers by this authorYuan Xin, School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang, ChinaSearch for more papers by this authorGuangri Xu, School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang, ChinaSearch for more papers by this authorXiaowei Guo, School of Chemistry and Materials Engineering, Xinxiang University, Xinxiang, ChinaSearch for more papers by this author First published: 03 December 2020 https://doi.org/10.1002/er.6278 Funding information: Henan Institute of Science and Technology, Grant/Award Number: 2016034; National Natural Science Foundation of China, Grant/Award Numbers: 41606096, 51502318; The Education Department of Henan Province, Grant/Award Number: S201911071004 Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinked InRedditWechat Summary Poly(ethylene oxide) (PEO) polymer electrolyte has been regarded as a potential solid electrolyte which can be applied in all-solid-state lithium-ion batteries (ASSLIBs). Nevertheless, low electrochemical properties and poor electrolyte/Li anode interfacial stability hinder its further application. In our work, the Li1.3Al0.3Ti1.7(PO4)3 (LATP) nanomaterials with Nasicon structure have been synthesized using a simple solvent-thermal method, followed by being embedded into PEO polymer to form LATP filled PEO solid composite electrolytes. Effects of LATP content and particle size on electrochemical performances of solid electrolytes have been studied. By adjusting the calcination temperature, the uniformly distributed Nasicon-type LATP powders with different sizes can be obtained. The electrochemical properties of PEO polymer electrolyte have been effectively enhanced by filling LATP nanoparticles. The composite electrolyte filled with 5 wt% LATP particles calcined at 850°C exhibits a high ionic conductivity of 5.24×10−4 S cm−1 at 55°C, which has a high electrochemical stability window of over 5 V versus Li/Li+ and a superior interfacial stability with Li metal. A LiFePO4/Li ASSLIB fabricated with the optimum composite electrolyte shows the excellent rate capability, and its discharge capacities at 0.2C, 0.5C, 1C, and 2C are 151.97, 151.56, 145.51, and 128.02 mAh·g−1. Moreover, the discharge capacity of the cell decreases from 151.69 to 130.53 mAh·g−1 after 100 charge-discharge cycles at 0.5C rate, and the corresponding capacity retention is 86.05%. These results demonstrate that LATP nanoparticles obtained via the solvent-thermal method are the alternative fillers for PEO polymer electrolyte. Open Research DATA AVAILABILITY STATEMENT The data that support the findings of this study are available from the corresponding author upon reasonable request. Volume45, Issue5April 2021Pages 6876-6887 RelatedInformation