Fusing Ta-doped Li 7 La 3 Zr 2 O 12 grains using nanoscale Y 2 O 3 sintering aids for high-performance solid-state lithium batteries.

Autor: Zhang H; College of Materials, Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Xiamen University, Xiamen, Fujian, 361005, China. linjie@xmu.edu.cn., Wu Y; College of Materials, Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Xiamen University, Xiamen, Fujian, 361005, China. linjie@xmu.edu.cn., Zhu J; College of Materials, Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Xiamen University, Xiamen, Fujian, 361005, China. linjie@xmu.edu.cn., Xie X; College of Materials, Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Xiamen University, Xiamen, Fujian, 361005, China. linjie@xmu.edu.cn., Liu Z; College of Materials, Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Xiamen University, Xiamen, Fujian, 361005, China. linjie@xmu.edu.cn., Zhang Z; College of Materials, Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Xiamen University, Xiamen, Fujian, 361005, China. linjie@xmu.edu.cn., Ma Y; College of Materials, Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Xiamen University, Xiamen, Fujian, 361005, China. linjie@xmu.edu.cn., Huang T; College of Materials, Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Xiamen University, Xiamen, Fujian, 361005, China. linjie@xmu.edu.cn., Wang L; College of Materials, Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Xiamen University, Xiamen, Fujian, 361005, China. linjie@xmu.edu.cn., Lin J; College of Materials, Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Xiamen University, Xiamen, Fujian, 361005, China. linjie@xmu.edu.cn., Xie Q; College of Materials, Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Xiamen University, Xiamen, Fujian, 361005, China. linjie@xmu.edu.cn., Peng DL; College of Materials, Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Xiamen University, Xiamen, Fujian, 361005, China. linjie@xmu.edu.cn.
Jazyk: angličtina
Zdroj: Nanoscale [Nanoscale] 2024 Aug 13; Vol. 16 (31), pp. 14871-14878. Date of Electronic Publication: 2024 Aug 13.
DOI: 10.1039/d4nr01992j
Abstrakt: Solid-state lithium batteries have advantages of high energy density and usage safety and are considered as promising next-generation power sources. Among them, the garnet-type oxide electrolyte has become a widely studied inorganic electrolyte due to its high ionic conductivity and chemical stability. In this paper, nanoscale Y 2 O 3 (NYO) particles are introduced as sintering aids for fabricating Ta-doped Li 7 La 3 Zr 2 O 12 (LLZTO) ceramics, and the sintering effects of various NYO ratios on the properties of LLZTO are investigated. Among the samples, the LLZTO-5%NYO sample exhibits the highest ionic conductivity (7.39 × 10 -4 S cm -1 ) and the lowest activation energy (0.17 eV). At various current densities, the polarization voltage of LLZTO-5%NYO is also the lowest without a short circuit. The full cells of LFP|LLZTO-5%NYO|Li exhibit a high capacity of 163.9 mA h g -1 with a high initial coulombic efficiency of 97.4%, and the capacity retention rate is up to 98.1% after 50 cycles. This work may inspire the development of analogous solid-state electrolytes and lithium batteries.
Databáze: MEDLINE
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