Scholarlink

<p>This study investigates the phase and elemental distribution in a suspension plasma-sprayed (SPS) Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub> (LTO) thin-film anode for solid-state lithium batteries, deposited on an SS-304 substrate. Advanced synchrotron-based µXRD and µXRF techniques were employed for micro-scale characterization, revealing distinct phase regions influenced by thermal exposure during the SPS process. The dominant Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub> phase was retained across most of the film, with localized transformations to secondary phases Li<sub>2</sub>Ti<sub>3</sub>O<sub>7</sub>, Li<sub>2</sub>TiO<sub>3,</sub> and TiO<sub>2</sub> near the substrate interface, primarily due to prolonged high-temperature exposure and subsequent lithium loss. These findings underscore the importance of controlling SPS parameters to minimize lithium loss and optimize phase stability and interfacial integrity in solid-state battery components.</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

Localized Phase and Elemental Mapping in Solid-State Lithium Battery LTO Anode Thin-Film Produced by a Novel Suspension Plasma Spray Approach

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年5月8日

查看全文
  • Arman Hasani,
  • Shrikant Joshi,
  • Antti Salminen,
  • Sneha Goel,
  • Joakim Reuteler,
  • Malgorzata Grazyna Makowska,
  • Ashish Ganvir

摘要

This study investigates the phase and elemental distribution in a suspension plasma-sprayed (SPS) Li4Ti5O12 (LTO) thin-film anode for solid-state lithium batteries, deposited on an SS-304 substrate. Advanced synchrotron-based µXRD and µXRF techniques were employed for micro-scale characterization, revealing distinct phase regions influenced by thermal exposure during the SPS process. The dominant Li4Ti5O12 phase was retained across most of the film, with localized transformations to secondary phases Li2Ti3O7, Li2TiO3, and TiO2 near the substrate interface, primarily due to prolonged high-temperature exposure and subsequent lithium loss. These findings underscore the importance of controlling SPS parameters to minimize lithium loss and optimize phase stability and interfacial integrity in solid-state battery components.