LiFePO4 with an alluaudite crystal structure for lithium ion batteries

Jongsoon Kim; Hyungsub Kim; Inchul Park; Young-Uk Park; Jung-Keun Yoo; Kyu-Young Park; Seongsu Lee; Kisuk Kang

doi:10.1039/C3EE24393A

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LiFePO₄ with an alluaudite crystal structure for lithium ion batteries†

Jongsoon Kim,^a Hyungsub Kim,^a Inchul Park,^a Young-Uk Park,^a Jung-Keun Yoo,^b Kyu-Young Park,^a Seongsu Lee^c and Kisuk Kang*^ad

Author affiliations

* Corresponding authors

^a Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea
E-mail: matlgen1@snu.ac.kr

^b Department of Materials Science and Engineering, KAIST (Korea Advanced Institute of Science and Technology), Gwahangno 335, Yuseong-gu, Daejeon 305-701, Korea

^c Korea Atomic Energy Research Institute, P.O. Box 105, Yuseong-gu, Daejeon 305-600, Korea

^d Research Institute of Advanced Materials, Seoul National University, Seoul 151-742, Republic of Korea

Abstract

A novel Na-pillared LiFePO₄ with an alluaudite structure is reported and its structure is investigated. The alluaudite-LiFePO₄ allowed fast lithium diffusion with stable electrochemical cycling in lithium batteries. ∼0.8 Li⁺ could be extracted and reinserted reversibly for extended cycles via one-phase reaction in contrast to the well-known two-phase reaction in olivine-LiFePO₄.

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Article information

DOI: https://doi.org/10.1039/C3EE24393A
Article type: Communication
Submitted: 17 Dec 2012
Accepted: 21 Jan 2013
First published: 21 Jan 2013

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Energy Environ. Sci., 2013,6, 830-834

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LiFePO₄ with an alluaudite crystal structure for lithium ion batteries

J. Kim, H. Kim, I. Park, Y. Park, J. Yoo, K. Park, S. Lee and K. Kang, Energy Environ. Sci., 2013, 6, 830 DOI: 10.1039/C3EE24393A

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