Visualizing the chemistry and structure dynamics in lithium-ion batteries by in-situ neutron diffraction

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

80 Scopus Citations
View graph of relations

Author(s)

  • Ke An
  • Lu Cai
  • Zhili Feng
  • Stephen E. Nagler
  • Claus Daniel
  • Kevin J. Rhodes
  • Alexandru D. Stoica
  • Harley D. Skorpenske
  • Chengdu Liang
  • Wei Zhang
  • Joon Kim
  • Yue Qi
  • Stephen J. Harris

Detail(s)

Original languageEnglish
Article number747
Journal / PublicationScientific Reports
Volume2
Publication statusPublished - 2012

Link(s)

Abstract

We report an in-situ neutron diffraction study of a large format pouch battery cell. The succession of Li-Graphite intercalation phases was fully captured under an 1C charge-discharge condition (i.e., charge to full capacity in 1 hour). However, the lithiation and dilithiation pathways are distinctively different and, unlike in slowing charging experiments with which the Li-Graphite phase diagram was established, no LiC 24 phase was found during charge at 1C rate. Approximately 75 mol. % of the graphite converts to LiC 6 at full charge, and a lattice dilation as large as 4% was observed during a charge-discharge cycle. Our work demonstrates the potential of in-situ, time and spatially resolved neutron diffraction study of the dynamic chemical and structural changes in real-world batteries under realistic cycling conditions, which should provide microscopic insights on degradation and the important role of diffusion kinetics in energy storage materials.

Research Area(s)

Citation Format(s)

Visualizing the chemistry and structure dynamics in lithium-ion batteries by in-situ neutron diffraction. / Wang, Xun-Li; An, Ke; Cai, Lu; Feng, Zhili; Nagler, Stephen E.; Daniel, Claus; Rhodes, Kevin J.; Stoica, Alexandru D.; Skorpenske, Harley D.; Liang, Chengdu; Zhang, Wei; Kim, Joon; Qi, Yue; Harris, Stephen J.

In: Scientific Reports, Vol. 2, 747, 2012.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

Download Statistics

No data available