Disordered Lithium-Rich Oxyfluoride as a Stable Host for Enhanced Li+ Intercalation Storage

被引：158

作者：

Chen, Ruiyong ^{[1
,2
]}

Ren, Shuhua ^{[2
]}

Knapp, Michael ^{[1
,3
]}

Wang, Di ^{[2
]}

Witter, Raiker ^{[2
,4
]}

Fichtner, Maximilian ^{[1
,2
]}

Hahn, Horst ^{[1
,2
,5
]}

机构：

[1] Helmholtz Inst Ulm, D-89081 Ulm, Germany

[2] Karlsruhe Inst Technol, Inst Nanotechnol, D-76021 Karlsruhe, Germany

[3] Karlsruhe Inst Technol, Inst Appl Mat, D-76021 Karlsruhe, Germany

[4] Tallinn Univ Technol, Technomedicum, EE-19086 Tallinn, Estonia

[5] Tech Univ Darmstadt, Joint Res Lab Nanomat, D-64287 Darmstadt, Germany

来源：

ADVANCED ENERGY MATERIALS | 2015年 / 5卷 / 09期

关键词：

X-RAY-DIFFRACTION; CATHODE MATERIALS; ION BATTERIES; 1ST-PRINCIPLES CALCULATIONS; ELECTRODE MATERIALS; PHOSPHO-OLIVINES; HIGH-CAPACITY; METAL-OXIDES; LIXCOO2; SPECTROSCOPY;

D O I：

10.1002/aenm.201401814

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

A new intercalation compound Li2VO2F with disordered rock-salt structure enables up to ≈1.8 Li+ storage (420 mAh g-1) at ≈2.5 V with a lattice volume change of only ≈3%. A high capacity of 300 mAh g-1 at 1C rate is observed. At -10 °C, Li2VO2F can deliver a reversible capacity of 280 mAh g-1 at ≈2.4 V. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页数：7

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