Experimental visualization of lithium diffusion in LixFePO 4

Shin Ichi Nishimura, Genki Kobayashi, Kenji Ohoyama, Ryoji Kanno, Masatomo Yashima, Atsuo Yamada

Research output: Contribution to journalArticlepeer-review

589 Citations (Scopus)


Chemical energy storage using batteries will become increasingly important for future environmentally friendly (green) societies. The lithium-ion battery is the most advanced energy storage system, but its application has been limited to portable electronics devices owing to cost and safety issues. State-of-the-art LiFePO"4 technology as a new cathode material with surprisingly high charge-discharge rate capability has opened the door for large-scale application of lithium-ion batteries such as in plug-in hybrid vehicles. The scientific community has raised the important question of why a facile redox reaction is possible in the insulating material. Geometric information on lithium diffusion is essential to understand the facile electrode reaction of Li(x)FePO"4 (0<x<1), but previous approaches have been limited to computational predictions. Here, we provide long-awaited experimental evidence for a curved one-dimensional chain for lithium motion. By combining high-temperature powder neutron diffraction and the maximum entropy method, lithium distribution along the [010] direction was clearly visualized.

Original languageEnglish
Pages (from-to)707-711
Number of pages5
JournalNature Materials
Issue number9
Publication statusPublished - 2008 Sep
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


Dive into the research topics of 'Experimental visualization of lithium diffusion in LixFePO 4'. Together they form a unique fingerprint.

Cite this