In situ XAFS study on cathode material for Li secondary batteries (5) - The temperature dependence of local atomic structure -

Shigehiro Kawauchi; Chikaaki Okuda; Hideyuki Nakano; Takamasa Nonaka; Yoshiki Seno; Yoshio Ukyo; Tokuhiko Okamoto

doi:10.14853/pcersj.2002F.0.408.0

15th Fall Meeting of The Ceramic Society of Japan

DOI https://doi.org/10.14853/pcersj.2002F.0.408.0

Conference information

Host: The Ceramic Society of Japan

In situ XAFS study on cathode material for Li secondary batteries (5)

- The temperature dependence of local atomic structure -

Shigehiro Kawauchi, Chikaaki Okuda, Hideyuki Nakano, Takamasa Nonaka, Yoshiki Seno, Yoshio Ukyo, Tokuhiko Okamoto

Author information

Keywords: in situ XAFS measurement, Synchrotron radiation, Lithium secondary battery, Lithium included transition metal oxide, degradation

CONFERENCE PROCEEDINGS FREE ACCESS

Pages 408

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Abstract

The local atomic structures of Ni and Co in LiNi_0.8Co_0.2O₂ during the first charge and discharge were examined by in-situ XAFS measurement on Li//LiNi_0.8Co_0.2O₂ coin cell at room temperature and 60°C. The XAFS analysis suggests that the change of Co-O interaction during charge and discharge at 60°C is associated with the degradation of the performance for battery.

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