Construction of Core-shell TiNb2O7/Li4Ti5O12 Composites with Improved Lithium Storage for Lithium-Ion Batteries
學年 112
學期 1
出版（發表）日期 2024-01-30
作品名稱 Construction of Core-shell TiNb2O7/Li4Ti5O12 Composites with Improved Lithium Storage for Lithium-Ion Batteries
作品名稱（其他語言）
著者 Yu-Sheng Hsiao; Lin-Yang Weng; Ta-Hung Cheng; Tzu-Yen Huang; Yen-Ju Wu; Jen-Hsien Huang ; Nian-Jheng Wu; Shih-Chieh Hsu; Huei Chu Weng; Chih-Ping Chen
單位
出版者
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.
關鍵字
語言 en
ISSN 2352-1538
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 否
國別 NLD
公開徵稿
出版型式 ,電子版
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機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/125506 )