Journal ArticleDOI
Elastic moduli of polycrystalline Li15Si4 produced in lithium ion batteries
Zhidan Zeng,Zhidan Zeng,Zhidan Zeng,Nian Liu,Qiaoshi Zeng,Qiaoshi Zeng,Yang Ding,Shaoxing Qu,Yi Cui,Yi Cui,Wendy L. Mao,Wendy L. Mao +11 more
TLDR
In this article, Li 15 Si 4 was synthesized in a Li-ion battery by electrochemically lithiating a thin Si wafer and its stability and compressional behavior were investigated using in situ high-pressure synchrotron X-ray diffraction (XRD) at room temperature.About:
This article is published in Journal of Power Sources.The article was published on 2013-11-15. It has received 37 citations till now. The article focuses on the topics: Bulk modulus & Elastic modulus.read more
Citations
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Elastic Softening of Amorphous and Crystalline Li-Si Phases with Increasing Li Concentration: A First-Principles Study
TL;DR: In this paper, first-principles calculations for both amorphous and crystalline phases observed during lithiation of Si anodes were performed and the anisotropic elastic tensors as well as the homogenized Young's, shear, and bulk moduli and the Poisson's ratios were analyzed.
Journal ArticleDOI
Mechanical behavior of electrochemically lithiated silicon
TL;DR: In this article, the time-independent and time-dependent mechanical behavior of electrochemically lithiated silicon was studied with nanoindentation, and the results indicated that Young's modulus of the fully lithiated phase is in fact somewhat larger than reported in some other studies.
Journal ArticleDOI
The mechanics of large-volume-change transformations in high-capacity battery materials
TL;DR: In this paper, a review of recent work focused on various aspects of the mechanics of alloying anode materials, including in situ characterization of real-time reaction mechanisms and mechanical degradation processes, measurements of mechanical properties, measurements and simulations of spatiotemporal stress generation and evolution in active battery materials and structures, and studies on the interplay between chemistry and mechanics during reaction.
Journal ArticleDOI
Effects of stress on lithium transport in amorphous silicon electrodes for lithium-ion batteries
Jie Pan,Qinglin Zhang,Qinglin Zhang,Juchuan Li,Matthew J. Beck,Xingcheng Xiao,Yang-Tse Cheng +6 more
TL;DR: In this article, the authors established a relationship between stress and the diffusion coefficients of Li in amorphous Si by ab initio molecular dynamics calculations (AIMD), and the prediction from AIMD was validated by the potentiostatic intermittent titration measurements.
Journal ArticleDOI
In situ tensile and creep testing of lithiated silicon nanowires
TL;DR: In this paper, the authors present experimental results for uniaxial tensile and creep testing of fully-lithiated silicon nanowires, showing that a reduction in the elastic modulus is observed when silicon wires are alloyed with lithium and plastic deformation becomes possible when the wires are saturated with lithium.
References
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Journal ArticleDOI
High-performance lithium battery anodes using silicon nanowires
Candace K. Chan,Hailin Peng,Gao Liu,Kevin McIlwrath,Xiao Feng Zhang,Robert A. Huggins,Yi Cui +6 more
TL;DR: The theoretical charge capacity for silicon nanowire battery electrodes is achieved and maintained a discharge capacity close to 75% of this maximum, with little fading during cycling.
Journal ArticleDOI
Two-dimensional detector software: From real detector to idealised image or two-theta scan
TL;DR: Calibration methods and software have been developed for single crystal diffraction experiments, using both approaches for calibrate, and apply corrections, to obtain accurate angle and intensity information.
Journal ArticleDOI
Stable cycling of double-walled silicon nanotube battery anodes through solid-electrolyte interphase control
Hui Wu,Gerentt Chan,Jang Wook Choi,Jang Wook Choi,Ill Ryu,Yan Yao,Matthew T. McDowell,Seok Woo Lee,Ariel Jackson,Yuan Yang,Liangbing Hu,Yi Cui,Yi Cui +12 more
TL;DR: It is shown that anodes consisting of an active silicon nanotube surrounded by an ion-permeable silicon oxide shell can cycle over 6,000 times in half cells while retaining more than 85% of their initial capacity.
Journal ArticleDOI
Vegard's law.
Alan R. Denton,N. W. Ashcroft +1 more
TL;DR: Applications of a density-functional theory of nonuniform fluid mixtures to the fluid-solid transition of simple binary mixtures of hard spheres demonstrates the importance of relative atomic sizes in determining lattice constants and suggests that for sufficiently small disparities in atomic size Vegard's law may also hold along the fluid -solid coexistence curve.
Journal ArticleDOI
Specific volume measurements of Cu, Mo, Pd, and Ag and calibration of the ruby R1 fluorescence pressure gauge from 0.06 to 1 Mbar
TL;DR: In this article, the wavelength shift with pressure of the ruby R1 fluorescence line (Δλ) has been calibrated in the diamond window pressure cell from 0.06 to 1 Mbar.
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