Nanoscale spinel LiFeTiO4 for intercalation pseudocapacitive Li+ storage

Literature Information

Publication Date 2014-11-21
DOI 10.1039/C4CP04655B
Impact Factor 3.676
Authors

Shuhua Ren, Ralf Heinzmann


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Abstract

Intercalation pseudocapacitive Li+ storage has been recognized recently in metal oxide materials, wherein Li+ intercalation into the lattice is not solid-state diffusion-limited. This may bridge the performance gap between electrochemical capacitors and battery materials. To date, only a few materials with desired crystal structure and with well-defined nanoarchitectures have been found to exhibit such attractive behaviour. Herein, we report for the first time that nanoscale spinel LiFeTiO4 as a cathode material for Li-ion batteries exhibits intercalation pseudocapacitive Li+ storage behaviour. Nanoscale LiFeTiO4 nanoparticles with native carbon coating were synthesized by a sol–gel route. A fast and large-amount of Li+ storage (up to 1.6 Li+ per formula unit over cycling) in the nanoscale LiFeTiO4 host has been achieved without compromising kinetics.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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