Effects of surface tension and electrochemical reactions in Li-ion battery electrode nanoparticles
The size- and shape-dependency of the chemo-mechanical behavior of spherical and ellipsoidal nanoparticles in Li-ion battery electrodes are investigated by a stress-assisted diffusion model and 3D finite element simulations. The model features surface tension, a direct coupling between diffusion and...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Stein, Peter [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2016transfer abstract |
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| Schlagwörter: |
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| Umfang: |
16 |
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| Übergeordnetes Werk: |
Enthalten in: Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method - Xiao, Hong ELSEVIER, 2013, the international journal on the science and technology of electrochemical energy systems, New York, NY [u.a.] |
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| Übergeordnetes Werk: |
volume:332 ; year:2016 ; day:15 ; month:11 ; pages:154-169 ; extent:16 |
| Links: |
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| DOI / URN: |
10.1016/j.jpowsour.2016.09.085 |
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| 520 | |a The size- and shape-dependency of the chemo-mechanical behavior of spherical and ellipsoidal nanoparticles in Li-ion battery electrodes are investigated by a stress-assisted diffusion model and 3D finite element simulations. The model features surface tension, a direct coupling between diffusion and elasticity, concentration-dependent diffusivity, and a Butler-Volmer relation for the description of electrochemical reactions that is modified to account for mechanical effects. Simulation results on spherical particles reveal that surface tension causes additional pressure fields in the particles, shifting the stress state towards the compressive regime. This provides mechanical stabilization, allowing, in principle, for higher charge/discharge rates. However, due to this pressure the attainable lithiation for a given potential difference is reduced during insertion, whereas a higher amount of ions is given off during extraction. Ellipsoidal particles with an aspect ratio deviating from that of a sphere with the same volume expose a larger surface area to the intercalation reactions. Consequently, they exhibit accelerated (dis)charge rates. However, due to the enhanced pressure in regions with high curvature, the accessible capacity of ellipsoidal particles is less than that of spherical particles. | ||
| 520 | |a The size- and shape-dependency of the chemo-mechanical behavior of spherical and ellipsoidal nanoparticles in Li-ion battery electrodes are investigated by a stress-assisted diffusion model and 3D finite element simulations. The model features surface tension, a direct coupling between diffusion and elasticity, concentration-dependent diffusivity, and a Butler-Volmer relation for the description of electrochemical reactions that is modified to account for mechanical effects. Simulation results on spherical particles reveal that surface tension causes additional pressure fields in the particles, shifting the stress state towards the compressive regime. This provides mechanical stabilization, allowing, in principle, for higher charge/discharge rates. However, due to this pressure the attainable lithiation for a given potential difference is reduced during insertion, whereas a higher amount of ions is given off during extraction. Ellipsoidal particles with an aspect ratio deviating from that of a sphere with the same volume expose a larger surface area to the intercalation reactions. Consequently, they exhibit accelerated (dis)charge rates. However, due to the enhanced pressure in regions with high curvature, the accessible capacity of ellipsoidal particles is less than that of spherical particles. | ||
| 650 | 7 | |a Lithium-ion batteries |2 Elsevier | |
| 650 | 7 | |a Nanoparticles |2 Elsevier | |
| 650 | 7 | |a Butler-Volmer equation |2 Elsevier | |
| 650 | 7 | |a Reaction kinetics |2 Elsevier | |
| 650 | 7 | |a Stress-enhanced diffusion |2 Elsevier | |
| 650 | 7 | |a Surface tension |2 Elsevier | |
| 700 | 1 | |a Zhao, Ying |4 oth | |
| 700 | 1 | |a Xu, Bai-Xiang |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier |a Xiao, Hong ELSEVIER |t Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method |d 2013 |d the international journal on the science and technology of electrochemical energy systems |g New York, NY [u.a.] |w (DE-627)ELV00098745X |
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10.1016/j.jpowsour.2016.09.085 doi GBV00000000000213A.pica (DE-627)ELV014161389 (ELSEVIER)S0378-7753(16)31248-4 DE-627 ger DE-627 rakwb eng 620 620 DE-600 690 VZ 50.92 bkl Stein, Peter verfasserin aut Effects of surface tension and electrochemical reactions in Li-ion battery electrode nanoparticles 2016transfer abstract 16 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The size- and shape-dependency of the chemo-mechanical behavior of spherical and ellipsoidal nanoparticles in Li-ion battery electrodes are investigated by a stress-assisted diffusion model and 3D finite element simulations. The model features surface tension, a direct coupling between diffusion and elasticity, concentration-dependent diffusivity, and a Butler-Volmer relation for the description of electrochemical reactions that is modified to account for mechanical effects. Simulation results on spherical particles reveal that surface tension causes additional pressure fields in the particles, shifting the stress state towards the compressive regime. This provides mechanical stabilization, allowing, in principle, for higher charge/discharge rates. However, due to this pressure the attainable lithiation for a given potential difference is reduced during insertion, whereas a higher amount of ions is given off during extraction. Ellipsoidal particles with an aspect ratio deviating from that of a sphere with the same volume expose a larger surface area to the intercalation reactions. Consequently, they exhibit accelerated (dis)charge rates. However, due to the enhanced pressure in regions with high curvature, the accessible capacity of ellipsoidal particles is less than that of spherical particles. The size- and shape-dependency of the chemo-mechanical behavior of spherical and ellipsoidal nanoparticles in Li-ion battery electrodes are investigated by a stress-assisted diffusion model and 3D finite element simulations. The model features surface tension, a direct coupling between diffusion and elasticity, concentration-dependent diffusivity, and a Butler-Volmer relation for the description of electrochemical reactions that is modified to account for mechanical effects. Simulation results on spherical particles reveal that surface tension causes additional pressure fields in the particles, shifting the stress state towards the compressive regime. This provides mechanical stabilization, allowing, in principle, for higher charge/discharge rates. However, due to this pressure the attainable lithiation for a given potential difference is reduced during insertion, whereas a higher amount of ions is given off during extraction. Ellipsoidal particles with an aspect ratio deviating from that of a sphere with the same volume expose a larger surface area to the intercalation reactions. Consequently, they exhibit accelerated (dis)charge rates. However, due to the enhanced pressure in regions with high curvature, the accessible capacity of ellipsoidal particles is less than that of spherical particles. Lithium-ion batteries Elsevier Nanoparticles Elsevier Butler-Volmer equation Elsevier Reaction kinetics Elsevier Stress-enhanced diffusion Elsevier Surface tension Elsevier Zhao, Ying oth Xu, Bai-Xiang oth Enthalten in Elsevier Xiao, Hong ELSEVIER Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method 2013 the international journal on the science and technology of electrochemical energy systems New York, NY [u.a.] (DE-627)ELV00098745X volume:332 year:2016 day:15 month:11 pages:154-169 extent:16 https://doi.org/10.1016/j.jpowsour.2016.09.085 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 332 2016 15 1115 154-169 16 045F 620 |
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10.1016/j.jpowsour.2016.09.085 doi GBV00000000000213A.pica (DE-627)ELV014161389 (ELSEVIER)S0378-7753(16)31248-4 DE-627 ger DE-627 rakwb eng 620 620 DE-600 690 VZ 50.92 bkl Stein, Peter verfasserin aut Effects of surface tension and electrochemical reactions in Li-ion battery electrode nanoparticles 2016transfer abstract 16 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The size- and shape-dependency of the chemo-mechanical behavior of spherical and ellipsoidal nanoparticles in Li-ion battery electrodes are investigated by a stress-assisted diffusion model and 3D finite element simulations. The model features surface tension, a direct coupling between diffusion and elasticity, concentration-dependent diffusivity, and a Butler-Volmer relation for the description of electrochemical reactions that is modified to account for mechanical effects. Simulation results on spherical particles reveal that surface tension causes additional pressure fields in the particles, shifting the stress state towards the compressive regime. This provides mechanical stabilization, allowing, in principle, for higher charge/discharge rates. However, due to this pressure the attainable lithiation for a given potential difference is reduced during insertion, whereas a higher amount of ions is given off during extraction. Ellipsoidal particles with an aspect ratio deviating from that of a sphere with the same volume expose a larger surface area to the intercalation reactions. Consequently, they exhibit accelerated (dis)charge rates. However, due to the enhanced pressure in regions with high curvature, the accessible capacity of ellipsoidal particles is less than that of spherical particles. The size- and shape-dependency of the chemo-mechanical behavior of spherical and ellipsoidal nanoparticles in Li-ion battery electrodes are investigated by a stress-assisted diffusion model and 3D finite element simulations. The model features surface tension, a direct coupling between diffusion and elasticity, concentration-dependent diffusivity, and a Butler-Volmer relation for the description of electrochemical reactions that is modified to account for mechanical effects. Simulation results on spherical particles reveal that surface tension causes additional pressure fields in the particles, shifting the stress state towards the compressive regime. This provides mechanical stabilization, allowing, in principle, for higher charge/discharge rates. However, due to this pressure the attainable lithiation for a given potential difference is reduced during insertion, whereas a higher amount of ions is given off during extraction. Ellipsoidal particles with an aspect ratio deviating from that of a sphere with the same volume expose a larger surface area to the intercalation reactions. Consequently, they exhibit accelerated (dis)charge rates. However, due to the enhanced pressure in regions with high curvature, the accessible capacity of ellipsoidal particles is less than that of spherical particles. Lithium-ion batteries Elsevier Nanoparticles Elsevier Butler-Volmer equation Elsevier Reaction kinetics Elsevier Stress-enhanced diffusion Elsevier Surface tension Elsevier Zhao, Ying oth Xu, Bai-Xiang oth Enthalten in Elsevier Xiao, Hong ELSEVIER Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method 2013 the international journal on the science and technology of electrochemical energy systems New York, NY [u.a.] (DE-627)ELV00098745X volume:332 year:2016 day:15 month:11 pages:154-169 extent:16 https://doi.org/10.1016/j.jpowsour.2016.09.085 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 332 2016 15 1115 154-169 16 045F 620 |
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10.1016/j.jpowsour.2016.09.085 doi GBV00000000000213A.pica (DE-627)ELV014161389 (ELSEVIER)S0378-7753(16)31248-4 DE-627 ger DE-627 rakwb eng 620 620 DE-600 690 VZ 50.92 bkl Stein, Peter verfasserin aut Effects of surface tension and electrochemical reactions in Li-ion battery electrode nanoparticles 2016transfer abstract 16 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The size- and shape-dependency of the chemo-mechanical behavior of spherical and ellipsoidal nanoparticles in Li-ion battery electrodes are investigated by a stress-assisted diffusion model and 3D finite element simulations. The model features surface tension, a direct coupling between diffusion and elasticity, concentration-dependent diffusivity, and a Butler-Volmer relation for the description of electrochemical reactions that is modified to account for mechanical effects. Simulation results on spherical particles reveal that surface tension causes additional pressure fields in the particles, shifting the stress state towards the compressive regime. This provides mechanical stabilization, allowing, in principle, for higher charge/discharge rates. However, due to this pressure the attainable lithiation for a given potential difference is reduced during insertion, whereas a higher amount of ions is given off during extraction. Ellipsoidal particles with an aspect ratio deviating from that of a sphere with the same volume expose a larger surface area to the intercalation reactions. Consequently, they exhibit accelerated (dis)charge rates. However, due to the enhanced pressure in regions with high curvature, the accessible capacity of ellipsoidal particles is less than that of spherical particles. The size- and shape-dependency of the chemo-mechanical behavior of spherical and ellipsoidal nanoparticles in Li-ion battery electrodes are investigated by a stress-assisted diffusion model and 3D finite element simulations. The model features surface tension, a direct coupling between diffusion and elasticity, concentration-dependent diffusivity, and a Butler-Volmer relation for the description of electrochemical reactions that is modified to account for mechanical effects. Simulation results on spherical particles reveal that surface tension causes additional pressure fields in the particles, shifting the stress state towards the compressive regime. This provides mechanical stabilization, allowing, in principle, for higher charge/discharge rates. However, due to this pressure the attainable lithiation for a given potential difference is reduced during insertion, whereas a higher amount of ions is given off during extraction. Ellipsoidal particles with an aspect ratio deviating from that of a sphere with the same volume expose a larger surface area to the intercalation reactions. Consequently, they exhibit accelerated (dis)charge rates. However, due to the enhanced pressure in regions with high curvature, the accessible capacity of ellipsoidal particles is less than that of spherical particles. Lithium-ion batteries Elsevier Nanoparticles Elsevier Butler-Volmer equation Elsevier Reaction kinetics Elsevier Stress-enhanced diffusion Elsevier Surface tension Elsevier Zhao, Ying oth Xu, Bai-Xiang oth Enthalten in Elsevier Xiao, Hong ELSEVIER Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method 2013 the international journal on the science and technology of electrochemical energy systems New York, NY [u.a.] (DE-627)ELV00098745X volume:332 year:2016 day:15 month:11 pages:154-169 extent:16 https://doi.org/10.1016/j.jpowsour.2016.09.085 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 332 2016 15 1115 154-169 16 045F 620 |
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10.1016/j.jpowsour.2016.09.085 doi GBV00000000000213A.pica (DE-627)ELV014161389 (ELSEVIER)S0378-7753(16)31248-4 DE-627 ger DE-627 rakwb eng 620 620 DE-600 690 VZ 50.92 bkl Stein, Peter verfasserin aut Effects of surface tension and electrochemical reactions in Li-ion battery electrode nanoparticles 2016transfer abstract 16 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The size- and shape-dependency of the chemo-mechanical behavior of spherical and ellipsoidal nanoparticles in Li-ion battery electrodes are investigated by a stress-assisted diffusion model and 3D finite element simulations. The model features surface tension, a direct coupling between diffusion and elasticity, concentration-dependent diffusivity, and a Butler-Volmer relation for the description of electrochemical reactions that is modified to account for mechanical effects. Simulation results on spherical particles reveal that surface tension causes additional pressure fields in the particles, shifting the stress state towards the compressive regime. This provides mechanical stabilization, allowing, in principle, for higher charge/discharge rates. However, due to this pressure the attainable lithiation for a given potential difference is reduced during insertion, whereas a higher amount of ions is given off during extraction. Ellipsoidal particles with an aspect ratio deviating from that of a sphere with the same volume expose a larger surface area to the intercalation reactions. Consequently, they exhibit accelerated (dis)charge rates. However, due to the enhanced pressure in regions with high curvature, the accessible capacity of ellipsoidal particles is less than that of spherical particles. The size- and shape-dependency of the chemo-mechanical behavior of spherical and ellipsoidal nanoparticles in Li-ion battery electrodes are investigated by a stress-assisted diffusion model and 3D finite element simulations. The model features surface tension, a direct coupling between diffusion and elasticity, concentration-dependent diffusivity, and a Butler-Volmer relation for the description of electrochemical reactions that is modified to account for mechanical effects. Simulation results on spherical particles reveal that surface tension causes additional pressure fields in the particles, shifting the stress state towards the compressive regime. This provides mechanical stabilization, allowing, in principle, for higher charge/discharge rates. However, due to this pressure the attainable lithiation for a given potential difference is reduced during insertion, whereas a higher amount of ions is given off during extraction. Ellipsoidal particles with an aspect ratio deviating from that of a sphere with the same volume expose a larger surface area to the intercalation reactions. Consequently, they exhibit accelerated (dis)charge rates. However, due to the enhanced pressure in regions with high curvature, the accessible capacity of ellipsoidal particles is less than that of spherical particles. Lithium-ion batteries Elsevier Nanoparticles Elsevier Butler-Volmer equation Elsevier Reaction kinetics Elsevier Stress-enhanced diffusion Elsevier Surface tension Elsevier Zhao, Ying oth Xu, Bai-Xiang oth Enthalten in Elsevier Xiao, Hong ELSEVIER Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method 2013 the international journal on the science and technology of electrochemical energy systems New York, NY [u.a.] (DE-627)ELV00098745X volume:332 year:2016 day:15 month:11 pages:154-169 extent:16 https://doi.org/10.1016/j.jpowsour.2016.09.085 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 332 2016 15 1115 154-169 16 045F 620 |
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10.1016/j.jpowsour.2016.09.085 doi GBV00000000000213A.pica (DE-627)ELV014161389 (ELSEVIER)S0378-7753(16)31248-4 DE-627 ger DE-627 rakwb eng 620 620 DE-600 690 VZ 50.92 bkl Stein, Peter verfasserin aut Effects of surface tension and electrochemical reactions in Li-ion battery electrode nanoparticles 2016transfer abstract 16 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The size- and shape-dependency of the chemo-mechanical behavior of spherical and ellipsoidal nanoparticles in Li-ion battery electrodes are investigated by a stress-assisted diffusion model and 3D finite element simulations. The model features surface tension, a direct coupling between diffusion and elasticity, concentration-dependent diffusivity, and a Butler-Volmer relation for the description of electrochemical reactions that is modified to account for mechanical effects. Simulation results on spherical particles reveal that surface tension causes additional pressure fields in the particles, shifting the stress state towards the compressive regime. This provides mechanical stabilization, allowing, in principle, for higher charge/discharge rates. However, due to this pressure the attainable lithiation for a given potential difference is reduced during insertion, whereas a higher amount of ions is given off during extraction. Ellipsoidal particles with an aspect ratio deviating from that of a sphere with the same volume expose a larger surface area to the intercalation reactions. Consequently, they exhibit accelerated (dis)charge rates. However, due to the enhanced pressure in regions with high curvature, the accessible capacity of ellipsoidal particles is less than that of spherical particles. The size- and shape-dependency of the chemo-mechanical behavior of spherical and ellipsoidal nanoparticles in Li-ion battery electrodes are investigated by a stress-assisted diffusion model and 3D finite element simulations. The model features surface tension, a direct coupling between diffusion and elasticity, concentration-dependent diffusivity, and a Butler-Volmer relation for the description of electrochemical reactions that is modified to account for mechanical effects. Simulation results on spherical particles reveal that surface tension causes additional pressure fields in the particles, shifting the stress state towards the compressive regime. This provides mechanical stabilization, allowing, in principle, for higher charge/discharge rates. However, due to this pressure the attainable lithiation for a given potential difference is reduced during insertion, whereas a higher amount of ions is given off during extraction. Ellipsoidal particles with an aspect ratio deviating from that of a sphere with the same volume expose a larger surface area to the intercalation reactions. Consequently, they exhibit accelerated (dis)charge rates. However, due to the enhanced pressure in regions with high curvature, the accessible capacity of ellipsoidal particles is less than that of spherical particles. Lithium-ion batteries Elsevier Nanoparticles Elsevier Butler-Volmer equation Elsevier Reaction kinetics Elsevier Stress-enhanced diffusion Elsevier Surface tension Elsevier Zhao, Ying oth Xu, Bai-Xiang oth Enthalten in Elsevier Xiao, Hong ELSEVIER Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method 2013 the international journal on the science and technology of electrochemical energy systems New York, NY [u.a.] (DE-627)ELV00098745X volume:332 year:2016 day:15 month:11 pages:154-169 extent:16 https://doi.org/10.1016/j.jpowsour.2016.09.085 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 332 2016 15 1115 154-169 16 045F 620 |
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Enthalten in Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method New York, NY [u.a.] volume:332 year:2016 day:15 month:11 pages:154-169 extent:16 |
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Enthalten in Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method New York, NY [u.a.] volume:332 year:2016 day:15 month:11 pages:154-169 extent:16 |
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effects of surface tension and electrochemical reactions in li-ion battery electrode nanoparticles |
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Effects of surface tension and electrochemical reactions in Li-ion battery electrode nanoparticles |
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The size- and shape-dependency of the chemo-mechanical behavior of spherical and ellipsoidal nanoparticles in Li-ion battery electrodes are investigated by a stress-assisted diffusion model and 3D finite element simulations. The model features surface tension, a direct coupling between diffusion and elasticity, concentration-dependent diffusivity, and a Butler-Volmer relation for the description of electrochemical reactions that is modified to account for mechanical effects. Simulation results on spherical particles reveal that surface tension causes additional pressure fields in the particles, shifting the stress state towards the compressive regime. This provides mechanical stabilization, allowing, in principle, for higher charge/discharge rates. However, due to this pressure the attainable lithiation for a given potential difference is reduced during insertion, whereas a higher amount of ions is given off during extraction. Ellipsoidal particles with an aspect ratio deviating from that of a sphere with the same volume expose a larger surface area to the intercalation reactions. Consequently, they exhibit accelerated (dis)charge rates. However, due to the enhanced pressure in regions with high curvature, the accessible capacity of ellipsoidal particles is less than that of spherical particles. |
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The size- and shape-dependency of the chemo-mechanical behavior of spherical and ellipsoidal nanoparticles in Li-ion battery electrodes are investigated by a stress-assisted diffusion model and 3D finite element simulations. The model features surface tension, a direct coupling between diffusion and elasticity, concentration-dependent diffusivity, and a Butler-Volmer relation for the description of electrochemical reactions that is modified to account for mechanical effects. Simulation results on spherical particles reveal that surface tension causes additional pressure fields in the particles, shifting the stress state towards the compressive regime. This provides mechanical stabilization, allowing, in principle, for higher charge/discharge rates. However, due to this pressure the attainable lithiation for a given potential difference is reduced during insertion, whereas a higher amount of ions is given off during extraction. Ellipsoidal particles with an aspect ratio deviating from that of a sphere with the same volume expose a larger surface area to the intercalation reactions. Consequently, they exhibit accelerated (dis)charge rates. However, due to the enhanced pressure in regions with high curvature, the accessible capacity of ellipsoidal particles is less than that of spherical particles. |
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The size- and shape-dependency of the chemo-mechanical behavior of spherical and ellipsoidal nanoparticles in Li-ion battery electrodes are investigated by a stress-assisted diffusion model and 3D finite element simulations. The model features surface tension, a direct coupling between diffusion and elasticity, concentration-dependent diffusivity, and a Butler-Volmer relation for the description of electrochemical reactions that is modified to account for mechanical effects. Simulation results on spherical particles reveal that surface tension causes additional pressure fields in the particles, shifting the stress state towards the compressive regime. This provides mechanical stabilization, allowing, in principle, for higher charge/discharge rates. However, due to this pressure the attainable lithiation for a given potential difference is reduced during insertion, whereas a higher amount of ions is given off during extraction. Ellipsoidal particles with an aspect ratio deviating from that of a sphere with the same volume expose a larger surface area to the intercalation reactions. Consequently, they exhibit accelerated (dis)charge rates. However, due to the enhanced pressure in regions with high curvature, the accessible capacity of ellipsoidal particles is less than that of spherical particles. |
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