In Situ Stress Transition Observations of Electrodeposited Sn-Based Anode Materials for Lithium-Ion Secondary Batteries

Mukaibo, Hitomi; Momma, Toshiyuki; Shacham‐Diamand, Yosi; Osaka, Tetsuya; Kodaira, Muneo

doi:10.1149/1.2426410

Cited by 40 publications

(30 citation statements)

References 10 publications

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“…Our calculated YM for circular and square cross section nanowire is 39 GPa and 51 GPa which is in good agreement with experimental value of 50 GPa. 57…”

Section: A Validation Of Bulk Propertiesmentioning

confidence: 99%

Mechanical properties of stanene under uniaxial and biaxial loading: A molecular dynamics study

Mojumder

Amin

Islam

2015

Journal of Applied Physics

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Stanene, a graphene like two dimensional honeycomb structure of tin has attractive features in electronics application. In this study, we performed molecular dynamics simulations using modified embedded atom method potential to investigate mechanical properties of stanene. We studied the effect of temperature and strain rate on mechanical properties of a-stanene for both uniaxial and biaxial loading conditions. Our study suggests that with the increasing temperature, both the fracture strength and strain of the stanene decrease. Uniaxial loading in zigzag direction shows higher fracture strength and strain compared to the armchair direction, while no noticeable variation in the mechanical properties is observed for biaxial loading. We also found at a higher loading rate, material exhibits higher fracture strength and strain. These results will aid further investigation of stanene as a potential nano-electronics substitute. V

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“…Our calculated YM for circular and square cross section nanowire is 39 GPa and 51 GPa which is in good agreement with experimental value of 50 GPa. 57…”

Section: A Validation Of Bulk Propertiesmentioning

confidence: 99%

Mechanical properties of stanene under uniaxial and biaxial loading: A molecular dynamics study

Mojumder

Amin

Islam

2015

Journal of Applied Physics

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“…In addition to the characterization of structural changes, significant advances have been made in in situ mechanical strain/stress characterization of LIB electrodes using a variety of approaches [18][19][20][21][22]. Among these techniques, the multi-beam optical stress sensor (MOSS) has proven to be an effective method for analyzing the stress evolution in LIB thin film electrodes during battery operation.…”

Section: Introductionmentioning

confidence: 99%

In situ characterization of charge rate dependent stress and structure changes in V2O5 cathode prepared by atomic layer deposition

Jung

Gerasopoulos

Talin

et al. 2017

Journal of Power Sources

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The insertion/extraction of lithium into/from various host materials is the basic process by which lithium-ion batteries reversible store charge. This process is generally accompanied by strain in the host material, inducing stress which can lead to capacity loss. Therefore, understanding of both the structural changes and the associated stressinvestigated almost exclusively separate to dateis a critical factor for developing highperformance batteries. Here, we report an in situ method, which utilizes Raman spectroscopy in parallel with optical interferometry to study effects of varying charging rates (C-rates) on the structure and stress in a V 2 O 5 thin film cathode. Abrupt stress changes at specific crystal phase transitions in the Li-V-O system are observed and the magnitude of the stress changes with the amount of lithium inserted into the electrode are correlated. A linear increase in the stress as a function of x in Li x V 2 O 5 is observed, indicating that Crate does not directly contribute to larger intercalation stress. However, a more rapid increase in disorder within the Li x V 2 O 5 layers is correlates with higher Crate. Ultimately, these experiments demonstrate how the simultaneous stress/Raman in situ approach can be utilized as a characterization platform for investigating various critical factors affecting lithium-ion battery performance.

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“…This behavior is interesting as it coincides with previous studies of monitoring insitu pressure development over the course of Sn lithiation. 30 Mukaibo et al found no detectable tensile stress development until after the LiSn phase is formed and postulated a "stress accumulation" occurring in Region 1 and 2 leading to rapid volume change in Region 3. Once sufficient expansion has occurred in a number of the Sn particles, other Sn is reconnected and can undergo lithiation, rationalizing the very little change in the voltage profile of the ambient condition in Regions 3 to 5.…”

Section: Resultsmentioning

confidence: 99%

Tin Networked Electrode Providing Enhanced Volumetric Capacity and Pressureless Operation for All-Solid-State Li-Ion Batteries

Whiteley

Kim

Kang

et al. 2015

J. Electrochem. Soc.

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Pure tin (Sn) metal nano-powder is investigated as a high capacity negative electrode for rechargeable all-solid-state Li-ion batteries. Sn is used to form a fully dense network intertwining with solid electrolyte negating necessary conductive additive. Galvanostatic cycling of the Sn composite electrode delivers a reversible capacity 800 mAh g −1 of Sn with a constant coulombic efficiency over 99.2%. We report on the effect of pressure and rate upon the delithiation mechanics, drawing correlations between Sn volume increase factors and stress accumulation over the course of Sn-Li phase transformations. Due to the fabricated electrode microstructure, we are able to operate the cell at ambient pressure conditions -the next step toward commercialization of the solid-state battery. We believe that this initial work provides new opportunities to study the electrochemical expansion of Sn with the inclusion of rigid electrolyte particles. In 1997, Fuji announced a tin (Sn)-based amorphous composite oxide material for commercial Li-ion batteries.1 Ensuing anode deployments include the Sony developed Sn-based compound (Sn-Co-C) in 2005.2 Although these were the first commercial deployments of Sn-based anodes, Sn has been extensively studied for decades as a candidate in rechargeable Li-ion batteries because of its substantial lithium storage capabilities and quicker charging times.3 Despite the theoretical capacity of Sn being lower than the currently spotlighted silicon (Si) anode, Sn has exceptionally appealing features: high gravimetric and volumetric capacity (959 mAh g −1 and 2,476 mAh mL −1 for 4.25 Li-ions), 4 excellent electrical conductivity (9.17 × 10 6 S m −1 ), and room temperature Li-ion diffusivity (5.9 × 10 −7 cm 2 s −1 of Li 4.4 Sn). 5 The commercialized Sn-Co-C anode by Sony provides a significant capacity advantage over the currently utilized graphite anode material (372 mAh g −1 ). However, wide use of the Sn-Co-C anode has been limited due to the high cost and environmental concerns about cobalt. Iron and nickel have been introduced as replacements for cobalt forming amorphous Sn-Fe and Sn-Ni with similar electrochemical properties to the Sn-Co alloy.6-10 Despite the low cost and high capacity of the Sn-Fe and Sn-Ni anodes, poor cycling stability and coulombic efficiency (CE) hinder their practical use in Li-ion batteries. These drawbacks mainly result from the notorious volume change of Sn (∼255% when 4.25 Li-ion inserted), 4,11 leading to a loss of electric contact, pulverization, and cracking.12 Therefore, controlling the microstructure of the expandable active material during lithiation/delithiation processes is a key point to realize a high energy-dense Li-ion battery using Sn-based anode materials.Recently, Molina Piper et al. reported the effect of compressive stress on the electrochemical performance of a Si anode in an allsolid-state Li-ion cell, which similarly suffers from pulverization due to immense volume changes.13 By applying external compressive stress to the silicon/solid-state elec...

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In Situ Stress Transition Observations of Electrodeposited Sn-Based Anode Materials for Lithium-Ion Secondary Batteries

Cited by 40 publications

References 10 publications

Mechanical properties of stanene under uniaxial and biaxial loading: A molecular dynamics study

Mechanical properties of stanene under uniaxial and biaxial loading: A molecular dynamics study

In situ characterization of charge rate dependent stress and structure changes in V2O5 cathode prepared by atomic layer deposition

Tin Networked Electrode Providing Enhanced Volumetric Capacity and Pressureless Operation for All-Solid-State Li-Ion Batteries

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