Scholarlink

<p>Ternary transition metal oxide cathode materials have been widely utilized in high-performance power applications due to their high energy density. However, their poor thermal stability and limited cycle life pose significant challenges to broader commercialization. To address these issues, a surface modification strategy was developed by coating the cathode materials with the fast ionic conductor Li<sub>1.3</sub>Al<sub>0.3</sub>Ti<sub>1.7</sub>(PO<sub>4</sub>)<sub>3</sub> (LATP). The LATP-coated cathode materials are synthesized via a kilogram-scale process, enabling large-scale and cost-effective manufacturing. The LATP-coated cathodes demonstrate enhanced reaction kinetics, thermal decomposition temperatures, and surface stability, leading to higher reversible capacity, rate performance, and cycling stability. Furthermore, 60 A·h pouch cells are fabricated with the coated cathodes and demonstrate exceptional cycling performance, retaining 96.2% of their capacity after 700 cycles at 1 C, and maintaining high capacity at 3 C. This work offers a scalable and effective strategy for advancing high-performance ternary cathode materials, accelerating their deployment in nextgeneration power battery systems.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Li1.3Al0.3Ti1.7(PO4)3-coated Ternary Cathode Materials for High Performance Lithium-ion Batteries

  • 期刊论文

  • 发表日期：

    2025年12月1日

查看全文
  • Changbin Cai,
  • Zehui Fan,
  • Yunhua Xu

摘要

Ternary transition metal oxide cathode materials have been widely utilized in high-performance power applications due to their high energy density. However, their poor thermal stability and limited cycle life pose significant challenges to broader commercialization. To address these issues, a surface modification strategy was developed by coating the cathode materials with the fast ionic conductor Li1.3Al0.3Ti1.7(PO4)3 (LATP). The LATP-coated cathode materials are synthesized via a kilogram-scale process, enabling large-scale and cost-effective manufacturing. The LATP-coated cathodes demonstrate enhanced reaction kinetics, thermal decomposition temperatures, and surface stability, leading to higher reversible capacity, rate performance, and cycling stability. Furthermore, 60 A·h pouch cells are fabricated with the coated cathodes and demonstrate exceptional cycling performance, retaining 96.2% of their capacity after 700 cycles at 1 C, and maintaining high capacity at 3 C. This work offers a scalable and effective strategy for advancing high-performance ternary cathode materials, accelerating their deployment in nextgeneration power battery systems.