Journal ArticleDOI
Determination of the diffusion coefficient of lithium ions in nano-Si
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TLDR
In this paper, the diffusion coefficients of lithium ions (D Li + ) in nano-Si were determined by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and galvanostatic intermittent titration technique (GITT).About:
This article is published in Solid State Ionics.The article was published on 2009-03-09. It has received 476 citations till now. The article focuses on the topics: Lithium & Amorphous solid.read more
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Li-ion battery materials: present and future
TL;DR: In this article, a review of the key technological developments and scientific challenges for a broad range of Li-ion battery electrodes is presented, and the potential/capacity plots are used to compare many families of suitable materials.
Journal ArticleDOI
Nanostructured silicon for high capacity lithium battery anodes
Jeannine R. Szczech,Song Jin +1 more
TL;DR: In this paper, the authors present an overview of rechargeable lithium batteries and the challenges and opportunities for silicon anodes, then survey the performance of various morphologies of nanostructured silicon (thin film, nanowires/nanotubes, nanoparticles, and mesoporous materials) and their nanocomposites.
Journal ArticleDOI
In Situ TEM of Two-Phase Lithiation of Amorphous Silicon Nanospheres
Matthew T. McDowell,Seok Woo Lee,Justin T. Harris,Brian A. Korgel,Chongmin Wang,William D. Nix,Yi Cui,Yi Cui +7 more
TL;DR: In situ transmission electron microscopy is used to observe the lithiation/delithiation of amorphous Si nanospheres, revealing that the first lithiation occurs via a two-phase mechanism, contrary to previous understanding and has important consequences for mechanical stress evolution during lithiation.
Journal ArticleDOI
High‐Capacity Anode Materials for Lithium‐Ion Batteries: Choice of Elements and Structures for Active Particles
Naoki Nitta,Gleb Yushin +1 more
TL;DR: In this paper, the periodic table is used to explore how the choice of anode material affects rate performance, cycle stability, Li-ion insertion/extraction potentials, voltage hysteresis, volumetric and specific capacities, and other critical parameters.
Journal ArticleDOI
Studying the kinetics of crystalline silicon nanoparticle lithiation with in situ transmission electron microscopy.
TL;DR: In situ transmission electron microscopy is used to study the electrochemical lithiation of high-capacity crystalline Si nanoparticles for use in Li-ion battery anodes, and analysis suggests that this behavior is due to diffusion limitation but instead to the influence of mechanical stress on the driving force for reaction.
References
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Journal ArticleDOI
Nano- and bulk-silicon-based insertion anodes for lithium-ion secondary cells
TL;DR: In this paper, a review of methodologies adopted for reducing the capacity fade observed in silicon-based anodes, discuss the challenges that remain in using silicon and siliconbased anode, and propose possible approaches for overcoming them.
Journal ArticleDOI
Electrochemical and In Situ X‐Ray Diffraction Studies of Lithium Intercalation in Li x CoO2
Jan N. Reimers,J. R. Dahn +1 more
TL;DR: In this article, high precision voltage measurements and in situ x-ray diffraction indicate a sequence of three distinct phase transitions as varies from 1 to 0.4, two of which are situated slightly above and below and are caused by an order/disorder transition of the lithium ions.
Journal ArticleDOI
Determination of the Kinetic Parameters of Mixed‐Conducting Electrodes and Application to the System Li3Sb
Werner Weppner,Robert A. Huggins +1 more
TL;DR: In this paper, an electrochemical galvanostatic intermittent titration technique (GITT) is described which combines both transient and steady-state measurements to obtain kinetic properties of solid mixed-conducting electrodes, as well as thermodynamic data.
Journal ArticleDOI
Application of A-C Techniques to the Study of Lithium Diffusion in Tungsten Trioxide Thin Films
TL;DR: In this paper, the small signal a-c impedance of the cell Li]LiAsF6 (0.75M) in propylene carbonatel Lip V~O3 thin film on tin oxide covered glass substrate has been measured at room temperature as a function of frequency from 5 10 -4 Hz to 5 X l0 s Hz at various open-circuit voltages.
Journal ArticleDOI
All‐Solid Lithium Electrodes with Mixed‐Conductor Matrix
TL;DR: In this paper, the concept of all-solid composite electrodes is presented, which contains a finely dispersed reactant,, in a solid mixed-conducting matrix, and the polarization is found to be comparable to values typical of highly porous electrode systems in molten salt electrolytes.
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