出版日期：2023-12-14 00:00:00

著者：Yu-Sheng Hsiao, Lin-Yang Weng, Ta-Hung Cheng, Tzu-Yen Huang, Yen-Ju Wu, Jen-Hsien Huang, Nian-Jheng Wu

著錄名稱、卷期、頁數：Journal of Energy Storage 77, 109860

摘要：In this study, the (TiNb2O7) TNO and modified (Li4Ti5O12) LTO composites with the core–shell (CS) structures have been designed and prepared by the spry-dried method. In the structural composite, the modified LTO core can stabilize the dimensional stability with excellent rate capability, and the TNO shell can offer a larger capacity, leading to high-performance anode materials. Our results indicate that the CS composites without the TNO nanoparticles (NPs) aggregation reveal a more negligible electrochemical polarization (EP) with improved kinetics than traditional composites. The optimal TNO content in the CS composite is 30 wt%, which can show a larger capacity than that of bare LTO, with the C-rate ranging between 17.5 and 3500 mA g−1. It delivers a capacity of 164.9 mA h g−1 at 1050 mA g−1, higher than bare LTO (157.6 mA h g−1) and traditional composite (154.6 mA h g−1). Furthermore, the full lithium-ion battery (LIB) is fabricated using the CS composite as the anode and LiNi0.5Mn1.5O4 (LNMO) as the cathode. The designed LIB shows an improved energy density of 122.0 W h kg−1 with remarkable cycling stability.

語言：en

ISSN：2352-1538; 2352-152X

期刊性質：國外

收錄於：SCI

審稿制度：否

國別：NLD

出版型式：電子版