Journal ArticleDOI
Effect of particle morphology on lithium intercalation rates in natural graphite
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In this paper, the role of the particle size and fraction of edge sites on the rate of intercalation and de-intercalation of Li + ions in graphite was investigated, and it was shown that 3D natural graphite with a particle size of 12-μm may provide the optimum combination of reversible capacity and irreversible capacity loss in the electrolyte and discharge rates used in this study.About:
This article is published in Journal of Power Sources.The article was published on 2003-11-24. It has received 37 citations till now. The article focuses on the topics: Intercalation (chemistry) & Graphite.read more
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Fast Charging of Lithium-Ion Batteries: A Review of Materials Aspects
Manuel Weiss,Raffael Ruess,Johannes Kasnatscheew,Yehonatan Levartovsky,Natasha Ronith Levy,Philip Minnmann,Lukas Stolz,Thomas Waldmann,Margret Wohlfahrt-Mehrens,Doron Aurbach,Martin Winter,Martin Winter,Yair Ein-Eli,Jürgen Janek +13 more
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Rate capability of graphite materials as negative electrodes in lithium-ion capacitors
TL;DR: In this article, the performance of various commercial graphite materials were evaluated using galvanostatic charge/discharge cycling in a half-cell configuration over a wide range of C-rates (0.1 similar to 60C) and showed that graphite is capable of de-intercalating stored charge at high rates, but has poor intercalating rate capability.
Rate capability of graphite materials as negative electrodes in lithium-ion capacitors
TL;DR: In this article, the performance of various commercial graphite materials were evaluated using galvanostatic charge/discharge cycling in a half-cell configuration over a wide range of C-rates (0.1 similar to 60C) and showed that graphite is capable of de-intercalating stored charge at high rates, but has poor intercalating rate capability.
Journal ArticleDOI
Electrochemical stiffness in lithium-ion batteries
TL;DR: It is shown that dramatic changes in electrochemical stiffness occur due to the formation of different graphite-lithium intercalation compounds during cycling, providing new insights into the origin of rate-dependent chemomechanical degradation and the evaluation of advanced battery electrodes.
Journal ArticleDOI
Quantifying inhomogeneity of lithium ion battery electrodes and its influence on electrochemical performance
TL;DR: In this paper, an approach to quantify microstructural inhomegeneity in lithium ion battery electrodes over multiple length scales and examines the impact of this micro-structural inhomogeneity on electrochemical performance is presented.
References
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Journal ArticleDOI
Simulation and Optimization of the Dual Lithium Ion Insertion Cell
TL;DR: In this article, the galvanostatic charge and discharge of a dual lithium ion insertion (rocking chair) cell are modeled with concentrated solution theory, and the insertion of lithium into and out of active electrode material is simulated using superposition, greatly simplifying the numerical calculations.
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Determination of the Lithium Ion Diffusion Coefficient in Graphite
TL;DR: In this article, a complex impedance model for spherical particles was used to determine the lithium ion diffusion coefficient in graphite as a function of the state of charge (SOC) and temperature.
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Solid‐State Electrochemistry of the Li Single Wall Carbon Nanotube System
TL;DR: In this paper, electrochemical doping has been used to study a new carbon guest-host system: Li/carbon nanotubes, which can be distinguished according to their structural properties: multiwall (MWNT) and single wall (SWNT).
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The Limits of Low‐Temperature Performance of Li‐Ion Cells
TL;DR: In this article, the results of electrode and electrolyte studies reveal that the poor low-temperature (<-30 degrees C) performance of Li-ion cells is mainly caused by the carbon electrodes and not the organic electrolytes and solid electrolyte interphase, as previously suggested.
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Graphites for lithium-ion cells : The correlation of the first-cycle charge loss with the Brunauer-Emmett-Teller surface area
TL;DR: In this article, the authors investigated the correlation of the irreversible charge loss during the first lithium intercalation into graphite electrodes with the Brunauer-Emmett-Teller (BET) specific surface area of Timrex graphites.