Scholarlink

<p>The need to use renewable energy resources has motivated researchers to develop new electrochemical energy storage technologies like solid-state lithium batteries. One of the most critical challenges regarding solid-state batteries is electrode/electrolyte interfacial impedance. One way to overcome this challenge is the surface modification of solid-state electrolytes (SSEs) with thin layers that can strengthen the interface. This study investigated the structure–property relationship of ZnO-surface modified garnet-type Li<sub>6.4</sub>Ga<sub>0.2</sub>La<sub>3</sub>Zr<sub>1.5</sub>Ta<sub>0.4</sub>O<sub>12</sub> (LLZO) electrolyte via detailed electrochemical measurements, distribution of relaxation time (DRT) analyses, and TEM inspections. LLZO was synthesized by a solid-state synthesis process, and the ZnO shell was deposited on LLZO particles using the sol–gel process. The key innovation in this paper is the utilization of a facile sol–gel coating process offering a straightforward and cost-effective route to achieve a conformal ZnO shell around LLZO particles. The EIS results showed that ZnO-coated LLZO exhibited a substantial reduction in interfacial impedance (&gt; 70%). These findings highlight the potential of ZnO surface modification in improving the performance of garnet-based SSEs for lithium batteries.</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

Electrode/Electrolyte interfacial engineering of nanostructured ZnO/Li6.4Ga0.2La3Zr1.5Ta0.4O12 to improve electrochemical behavior of solid electrolyte for solid-state lithium batteries

  • 期刊论文

  • 发表日期：

    2026年5月18日

查看全文
  • Mohammad Golmohammad,
  • Sajjad Mohammadi,
  • Siavash M. Alizadeh,
  • Hamid Abdoli

摘要

The need to use renewable energy resources has motivated researchers to develop new electrochemical energy storage technologies like solid-state lithium batteries. One of the most critical challenges regarding solid-state batteries is electrode/electrolyte interfacial impedance. One way to overcome this challenge is the surface modification of solid-state electrolytes (SSEs) with thin layers that can strengthen the interface. This study investigated the structure–property relationship of ZnO-surface modified garnet-type Li6.4Ga0.2La3Zr1.5Ta0.4O12 (LLZO) electrolyte via detailed electrochemical measurements, distribution of relaxation time (DRT) analyses, and TEM inspections. LLZO was synthesized by a solid-state synthesis process, and the ZnO shell was deposited on LLZO particles using the sol–gel process. The key innovation in this paper is the utilization of a facile sol–gel coating process offering a straightforward and cost-effective route to achieve a conformal ZnO shell around LLZO particles. The EIS results showed that ZnO-coated LLZO exhibited a substantial reduction in interfacial impedance (> 70%). These findings highlight the potential of ZnO surface modification in improving the performance of garnet-based SSEs for lithium batteries.