A Review on Modeling of Chemo-mechanical Behavior of Particle–Binder Systems in Lithium-Ion Batteries

Iqbal, Noman; Choi, Jinwoong; Lee, Changkyu; Khan, Asif; Tanveer, Muhammad; Lee, Seung Jun

doi:10.1007/s42493-022-00082-z

Cited by 8 publications

(9 citation statements)

References 76 publications

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“…Similar to the phenomenological approach presented by Liu et al [32], the fatigue deterioration of contact between AM particles and CBD during cycling is realized in this work by a decreased spring constant along this interface. Equation (18) expresses the considered degradation of the spring stiffness per cycle, where k d represents the rate at which the spring stiffness decreases per cycle, and n cyc indicates the cycle number.…”

Section: Mechanicsmentioning

confidence: 99%

“…Mechanics play a pivotal role in determining both the performance and longevity of lithium-ion batteries. With the growing demand for extended cycle life, fast charging, and increased driving range in EV applications, mechanical degradation is one of the obstacles that directly regulates the mechanisms of capacity deterioration [17,18]. Therefore, the mutual impacts of electrochemistry and mechanics in LIB cells need to be addressed in the pursuit of electrodes with high energy density.…”

Section: Introductionmentioning

confidence: 99%

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3D Heterogeneous Model for Electrodes in Lithium-Ion Batteries to Study Interfacial Detachment of Active Material Particles and Carbon-Binder Domain

Mirsalehian,

Vossoughi,

Kaiser

et al. 2023

Energies

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Mechanics plays a crucial role in the performance and lifespan of lithium-ion battery (LIB) cells. Thus, it is important to address the interplay between electrochemistry and mechanics in LIBs, especially when aiming to enhance the energy density of electrodes. Accordingly, this work introduces a framework for a fully coupled electro-chemo-mechanical heterogeneous 3D model that allows resolving the inhomogeneities accompanied by electrochemical and mechanical responses of LIB electrodes during operation. The model is employed to numerically study the mechanical degradation of a nickel manganese cobalt (NMC) cathode electrode, assembled in a half-cell, upon cycling. As opposed to previous works, a virtual morphology for a high-energy electrode with low porosity is developed in this study, which comprises distinct domains of active material (AM) particles, the carbon-binder domain (CBD), and the pore domain to resemble real commercial electrodes. It is observed that the mechanical strain mismatch between irregularly and randomly positioned AM particles and the CBD might lead to local contact detachment. This interfacial gap, in combination with the diminishing contact strength over cell cycling, continuously deteriorates the electrode performance upon cycling by impedance rise and capacity drop. In agreement with previous experimental reports, the presented simulation results exhibit that the contact loss mostly takes place in the regions closer to the separator. Eventually, the resulting gradual capacity drop and change in impedance spectrum over cycling, as the consequence of interfacial gap formation, are discussed and indicated.

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Section: Mechanicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

3D Heterogeneous Model for Electrodes in Lithium-Ion Batteries to Study Interfacial Detachment of Active Material Particles and Carbon-Binder Domain

Mirsalehian,

Vossoughi,

Kaiser

et al. 2023

Energies

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“…1(d). 37 The resultant SEI debonding, imparts electrochemical isolation of the carbon particle from the surrounding binder-electrolyte mixture, 34,50,51 as reported by Verma, Maire, and Novák. 15 Partial, 52,53 or complete particle debonding [54][55][56][57][58] of carbon substrates coated with an SEI layer and in contact with the binder-electrolyte mixture have resulted on a qualitative understanding of the impact of one phase into the other one, but does not consider the two-way effect of the fully coupled particle-SEI system.…”

mentioning

confidence: 91%

“…Referred to as the Solid Electrolyte Interphase (SEI) by Peled and Yamin, 30 this layer is known to form during the first instants of contact of a carbon substrate with the electrolyte, 31 while others propose that it develops during the first electrochemical insertion event of lithium in carbon. [32][33][34] The structure of the SEI is heterogeneous and complex, 15,35 and possesses a thickness that ranges from 5 nm 32,36 to more than 100 nm, 37 with a typical value of ∼20 nm. 38,39 In contrast, the thickness of the SEI layer is usually much smaller than the characteristic size of particles of active anode material, which range in the 500 nm to 100 μm.…”

mentioning

confidence: 99%

“…Most recently, SEI theoretical analyses have been carried out by abstracting the problem as a spherical carbon particle covered by a rigid SEI shell. 33,34,[55][56][57][58][59][60][61][62][63] This allowed to compute the stress discontinuity effect that the SEI layer imposes, even though the thermodynamic coupling effect of the stress on the lithium-ion flux is missing.…”

mentioning

confidence: 99%

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SEI-Coated Carbon Particles: Electrochemomechanical Fracture Mechanisms

Sanjuan,

Surya Mitra,

Edwin García

2024

J. Electrochem. Soc.

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By starting from fundamental physical principles, a generalized theoretical framework was developed to engineer the intercalation-induced mechanical degradation in SEI-coated carbon particles from the surrounding electrolyte in rechargeable lithium-ion batteries (LIBs). Six elemental regimes of fracture formation in spherical electrochemically active carbon particles of radius, r p , coated with an SEI layer of thickness, δ ≪ r p , have been identified: The pristine regime, the SEI debonding regime, the SEI surface flaw regime, the surface carbon flaw regime (delithiation), the internal circular carbon flaw regime (lithiation), and the carbon exfoliation regime (lithiation); as well as four combined regimes during delithiation and four combined regimes during lithiation. Results are summarized in terms of C-Rate versus particle size, degradation maps, to identify LIB operation conditions where the performance can be optimized, while suppressing the decrepitation of the SEI-coated carbon particle system. Improved porous electrode layers that deliver longer battery life are possible by selecting electrolytes that considering the design of SEI-coated carbon particles of tailored elastic stiffness and critical stress intensity factor, so that they are safe from developing a chemomechanically induced flaw, exfoliation, or carbon re-forming, during both lithiation or delithiation in the 1 to 10 μm size particle, and C-Rates < 1 C.

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Mixed mode stress intensity factor analysis on edge cracked FGM plate with different material distribution models by XFEM

Lal,

Kulkarni,

Singh

et al. 2024

J Mech Sci Technol

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A Review on Modeling of Chemo-mechanical Behavior of Particle–Binder Systems in Lithium-Ion Batteries

Cited by 8 publications

References 76 publications

3D Heterogeneous Model for Electrodes in Lithium-Ion Batteries to Study Interfacial Detachment of Active Material Particles and Carbon-Binder Domain

3D Heterogeneous Model for Electrodes in Lithium-Ion Batteries to Study Interfacial Detachment of Active Material Particles and Carbon-Binder Domain

SEI-Coated Carbon Particles: Electrochemomechanical Fracture Mechanisms

Mixed mode stress intensity factor analysis on edge cracked FGM plate with different material distribution models by XFEM

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