Construction of a High-Performance Composite Solid Electrolyte Through In-Situ Polymerization within a Self-Supported Porous Garnet Framework

被引:17
|
作者
Nguyen, An-Giang [1 ]
Lee, Min-Ho [1 ]
Kim, Jaekook [1 ]
Park, Chan-Jin [1 ]
机构
[1] Chonnam Natl Univ, Dept Mat Sci & Engn, 77 Yongbong Ro, Gwangju 61186, South Korea
基金
新加坡国家研究基金会;
关键词
Scalable tape-casting method; Self-supported porous Li6.4La3Zr1.4Ta0.6O12; Composite solid electrolyte; LiF-and B-rich interphase layers; LITHIUM METAL BATTERIES; ION; DESIGN;
D O I
10.1007/s40820-023-01294-0
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Composite solid electrolytes (CSEs) have emerged as promising candidates for safe and high-energy-density solid-state lithium metal batteries (SSLMBs). However, concurrently achieving exceptional ionic conductivity and interface compatibility between the electrolyte and electrode presents a significant challenge in the development of high-performance CSEs for SSLMBs. To overcome these challenges, we present a method involving the in-situ polymerization of a monomer within a self-supported porous Li6.4La3Zr1.4Ta0.6O12 (LLZT) to produce the CSE. The synergy of the continuous conductive LLZT network, well-organized polymer, and their interface can enhance the ionic conductivity of the CSE at room temperature. Furthermore, the in-situ polymerization process can also construct the integration and compatibility of the solid electrolyte-solid electrode interface. The synthesized CSE exhibited a high ionic conductivity of 1.117 mS cm(-1), a significant lithium transference number of 0.627, and exhibited electrochemical stability up to 5.06 V vs. Li/Li+ at 30 degrees C. Moreover, the Li|CSE|LiNi0.8Co0.1Mn0.1O2 cell delivered a discharge capacity of 105.1 mAh g(-1) after 400 cycles at 0.5 C and 30 degrees C, corresponding to a capacity retention of 61%. This methodology could be extended to a variety of ceramic, polymer electrolytes, or battery systems, thereby offering a viable strategy to improve the electrochemical properties of CSEs for high-energy-density SSLMBs.
引用
收藏
页数:15
相关论文
empty
未找到相关数据