A mesoporous iron-based fluoride cathode of tunnel structure for rechargeable lithium batteries

Chilin Li; Lin Gu; Jianwei Tong; Susumu Tsukimoto; Joachim Maier

doi:10.1002/adfm.201002213

A mesoporous iron-based fluoride cathode of tunnel structure for rechargeable lithium batteries

Chilin Li, Lin Gu, Jianwei Tong, Susumu Tsukimoto, Joachim Maier

Research output: Contribution to journal › Article › peer-review

125 Citations (Scopus)

Abstract

A fluoride-based cathode (FeF₃·0.33H₂O) for lithium batteries, the synthesis of which has been reported recently (C. L. Li et al. Adv. Mater. 2010, 22, 3650), is described in terms of structure, morphology, and performance. A self-assembled mesoporous morphology connected with a high specific surface area is obtained through the soft template role of the ionic liquid. The fluoride exhibits a one-dimensional tunnel structure produced by continuous hexagonal cavities, in which hydration water molecules are located. The high Li-intercalation activity of carbon-free FeF ₃·0.33H₂O is expected to be associated with various factors, including electrolyte-infiltratable mesoporosity, wide Li ⁺-insertable channels, and medium conductivities. A single solid-solution reaction mechanism is indicated by potentiostatic intermittent titration technique and ex situ X-ray diffraction at different reactive potentials.

Original language	English
Pages (from-to)	1391-1397
Number of pages	7
Journal	Advanced Functional Materials
Volume	21
Issue number	8
DOIs	https://doi.org/10.1002/adfm.201002213
Publication status	Published - 2011 Apr 22

Keywords

iron-based fluoride
lithium batteries
mesoporous morphology
tunnel structure

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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abstract = "A fluoride-based cathode (FeF3·0.33H2O) for lithium batteries, the synthesis of which has been reported recently (C. L. Li et al. Adv. Mater. 2010, 22, 3650), is described in terms of structure, morphology, and performance. A self-assembled mesoporous morphology connected with a high specific surface area is obtained through the soft template role of the ionic liquid. The fluoride exhibits a one-dimensional tunnel structure produced by continuous hexagonal cavities, in which hydration water molecules are located. The high Li-intercalation activity of carbon-free FeF 3·0.33H2O is expected to be associated with various factors, including electrolyte-infiltratable mesoporosity, wide Li +-insertable channels, and medium conductivities. A single solid-solution reaction mechanism is indicated by potentiostatic intermittent titration technique and ex situ X-ray diffraction at different reactive potentials.",

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AU - Gu, Lin

AU - Tong, Jianwei

AU - Tsukimoto, Susumu

AU - Maier, Joachim

PY - 2011/4/22

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N2 - A fluoride-based cathode (FeF3·0.33H2O) for lithium batteries, the synthesis of which has been reported recently (C. L. Li et al. Adv. Mater. 2010, 22, 3650), is described in terms of structure, morphology, and performance. A self-assembled mesoporous morphology connected with a high specific surface area is obtained through the soft template role of the ionic liquid. The fluoride exhibits a one-dimensional tunnel structure produced by continuous hexagonal cavities, in which hydration water molecules are located. The high Li-intercalation activity of carbon-free FeF 3·0.33H2O is expected to be associated with various factors, including electrolyte-infiltratable mesoporosity, wide Li +-insertable channels, and medium conductivities. A single solid-solution reaction mechanism is indicated by potentiostatic intermittent titration technique and ex situ X-ray diffraction at different reactive potentials.

AB - A fluoride-based cathode (FeF3·0.33H2O) for lithium batteries, the synthesis of which has been reported recently (C. L. Li et al. Adv. Mater. 2010, 22, 3650), is described in terms of structure, morphology, and performance. A self-assembled mesoporous morphology connected with a high specific surface area is obtained through the soft template role of the ionic liquid. The fluoride exhibits a one-dimensional tunnel structure produced by continuous hexagonal cavities, in which hydration water molecules are located. The high Li-intercalation activity of carbon-free FeF 3·0.33H2O is expected to be associated with various factors, including electrolyte-infiltratable mesoporosity, wide Li +-insertable channels, and medium conductivities. A single solid-solution reaction mechanism is indicated by potentiostatic intermittent titration technique and ex situ X-ray diffraction at different reactive potentials.

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A mesoporous iron-based fluoride cathode of tunnel structure for rechargeable lithium batteries

Abstract

Keywords

ASJC Scopus subject areas

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