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Author: Sean R. Bishop
Publisher: Springer
ISBN: 3319514075
Category : Technology & Engineering
Languages : en
Pages : 197
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Book Description
This book brings together a collection of chapters that focus on the relationship among electrical, chemical, and mechanical properties and the study of adjusting one property through the control of another, namely, Electro-Chemo-Mechanics (ECM). The authors examine how this relationship can result in beneficial properties, such as mixed ionic and electronic conductivity, in oxides, upon oxygen deficiency or lithium insertion (electro-chemo) and/or changes in ionic and electronic mobility observed in strained systems (electro-mechano). They also consider how ECM interactions can be responsible for large stresses from non-stoichiometry induced lattice dilation (chemo-mechano). While many volumes are available devoted to the study of the origins and characteristics of electro-chemical relationships, they form the well-known field of electrochemistry, this volume is highly novel in its examination of the corresponding electro-mechanical, chemo-mechanical, and electro-chemo-mechanical relationships. The book is ideal for researchers and design engineers interested in energy storage and conversion and the electrical and mechanical properties of materials.
Author: Sean R. Bishop
Publisher: Springer
ISBN: 3319514075
Category : Technology & Engineering
Languages : en
Pages : 197
Get Book Here
Book Description
This book brings together a collection of chapters that focus on the relationship among electrical, chemical, and mechanical properties and the study of adjusting one property through the control of another, namely, Electro-Chemo-Mechanics (ECM). The authors examine how this relationship can result in beneficial properties, such as mixed ionic and electronic conductivity, in oxides, upon oxygen deficiency or lithium insertion (electro-chemo) and/or changes in ionic and electronic mobility observed in strained systems (electro-mechano). They also consider how ECM interactions can be responsible for large stresses from non-stoichiometry induced lattice dilation (chemo-mechano). While many volumes are available devoted to the study of the origins and characteristics of electro-chemical relationships, they form the well-known field of electrochemistry, this volume is highly novel in its examination of the corresponding electro-mechanical, chemo-mechanical, and electro-chemo-mechanical relationships. The book is ideal for researchers and design engineers interested in energy storage and conversion and the electrical and mechanical properties of materials.
Author: Sooraj Narayan
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
In several solid systems, including batteries and various electrochemically-based actuators, charged ions are transported across a solid host material under the influence of electric fields and concentration gradients, which can cause local volumetric expansion and contraction. Since stresses and strains are transmitted very effectively in solids, the chemical expansion leads to significant stress generation in the host material. These stresses also influence the movement of ions, and thus electrochemistry and mechanics are highly coupled in such systems. The overarching theme of this thesis is the theoretical formulation and numerical simulation of such systems. This thesis is divided into two major parts: Part 1. All-solid-state lithium metal batteries: While all-solid-state batteries, which use solid electrolytes (SE), are safer than conventional liquid electrolyte based systems, they are currently plagued by major challenges leading to cell failure, such as lithium filament growth through the SE, fracture of the SE, and decohesion of the anode and the SE. In order to aid and advance our understanding of the mechanisms that lead to these various modes of failure, we have mathematically modeled the electrodeposition and attendant large viscoplastic deformation of lithium at the anode-SE interface of an all-solid-state lithium metal battery (ASSLMB). Through numerical finite-element implementation of our model, we have studied the deleterious effects of plating-and-stripping of lithium around interfacial chemical or mechanical defects in ASSLMBs. Our simulations reveal the role of charging/discharging current levels, cell stack pressure, and other mechanical constraints of the system on possible failure mechanisms of such cells. Part 2. Polyelectrolyte polymers: Ionizable polymeric gels which mechanically respond to electrostatic/chemical stimuli are useful in artificial muscles, artificial skin, and drug delivery applications (among others). We have formulated a thermodynamically-consistent, fully-coupled, theoretical electro-chemo-mechanical framework accounting for large deformations, electrostatic influence on charged species, and simultaneous cross-diffusional transport of multiple mobile species. We have suitably specialized this general framework to model: (i) ionic polymer-metal composites, (ii) ionotronic devices, and (iii) polyelectrolyte gels. Using the finite-element simulation capabilities that we developed for each case, we have successfully validated our models against experiments from the literature. We also show many applications of these materials in technologically-relevant actuators, which demonstrate the utility of our numerical modeling capabilities as a tool for designing ionotronic devices and electro-chemo-mechanical actuators.
Author: Ganser, Markus
Publisher: KIT Scientific Publishing
ISBN: 3731510472
Category : Technology & Engineering
Languages : en
Pages : 272
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Book Description
Solid state batteries with a lithium metal electrode are considered the next generation of high energy battery technology. Unfortunately, lithium metal is prone to harmful protrusion or dendrite growth which causes dangerous cell failure. Within this work the problem of protrusion growth is tackled by deriving a novel electro-chemo-mechanical theory tailored for binary solid state batteries which is then used to discuss the impact of mechanics on interface stability by numerical studies.
Author: Chuan Cheng
Publisher: Springer
ISBN: 3662472686
Category : Technology & Engineering
Languages : en
Pages : 287
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Book Description
In this thesis, real-time evolution of the nanopore channel growth and self-ordering process in anodic nanoporous alumina are simulated on the basis of an established kinetics model. The simulation results were in accordance with the experiments on the (i) growth sustainability of pore channels guided by pre-patterns; and (ii) substrate grain orientation dependence on self-ordering. In addition, a new fabrication method for the rapid synthesis of highly self-ordered nanoporous alumina is established, based on a systematic search for the self-ordering conditions in experiments. Lastly, it reports on a novel surface-charge induced strain in nanoporous alumina-aluminium foils, which indicates that nanoporous alumina can be used as a new type of actuating material in micro-actuator applications.
Author: Alessandro Leronni
Publisher: Springer Nature
ISBN: 3030922766
Category : Technology & Engineering
Languages : en
Pages : 226
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Book Description
This book presents a novel continuum finite deformation framework addressing the complex interactions among electrostatics, species transport, and mechanics in solid networks immersed in a fluid phase of solvent and ions. Grounded on cutting-edge multiphysics theories for soft active materials, the proposed model is primarily applied to ionic polymer metal composites (IPMCs). First, the influence of shear deformation on the IPMC response is analyzed through semi-analytical solutions obtained via the method of matched asymptotic expansions. Second, the novel electrochemo-poromechanical theory is used to predict the curvature relaxation and electric discharge that are observed in IPMC actuation and sensing, respectively, under a sustained stimulus. This newly formulated theory is, in turn, applied to biological cell clusters. Here, important mechanical considerations are integrated into classical bioelectrical models, thus offering novel insights into the interplay of mechanical and electrical signaling in the coordination of developmental processes.
Author: Yanuo Shi
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Konstantin Volokh
Publisher: Springer
ISBN: 9811383715
Category : Science
Languages : en
Pages : 167
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Book Description
This book provides a concise introduction to soft matter modelling, together with an up-to-date review of the continuum mechanical description of soft and biological materials, from the basics to the latest scientific materials. It also includes multi-physics descriptions, such as chemo-, thermo-, and electro-mechanical coupling. The new edition includes a new chapter on fractures as well as numerous corrections, clarifications and new solutions. Based on a graduate course taught for the past few years at Technion, it presents original explanations for a number of standard materials, and features detailed examples to complement all topics discussed.
Author: Masahiro Seo
Publisher: Springer
ISBN: 9789811572791
Category : Science
Languages : en
Pages : 211
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Book Description
This book deals with the electro-chemo-mechanical properties characteristic of and unique to solid electrode surfaces, covering interfacial electrochemistry and surface science. Electrochemical reactions such as electro-sorption, electro-deposition or film growth on a solid electrode induce changes in surface stress or film stress that lead to transformation of the surface phase or alteration of the surface film. The properties of solid electrode surfaces associated with the correlation between electrochemical and mechanical phenomena are named “electro-chemo-mechanical properties”. The book first derives the surface thermodynamics of solid electrodes as fundamentals for understanding the electro-chemo-mechanical properties. It also explains the powerful techniques for investigating the electro-chemo-mechanical properties, and reviews the arguments for derivation of surface thermodynamics of solid electrodes. Further, based on current experimental findings and theories, it discusses the importance of the contribution of surface stress to the transformation of surface phases, such as surface reconstruction and underpotential deposition in addition to the stress evolution during film growth and film reduction. Moreover, the book describes the nano-mechanical properties of solid surfaces measured by nano-indentation in relation to the electro-chemo-mechanical properties. This book makes a significant contribution to the further development of numerous fields, including electrocatalysis, materials science and corrosion science.
Author: Benjamin Loret
Publisher: CRC Press
ISBN: 1351617095
Category : Medical
Languages : en
Pages : 875
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Book Description
Biomechanics applies the laws and techniques of mechanics in the study of biological systems and related phenomena. Biomechanics uses mathematical and computational tools such as model construction of musclo-skeletal system, body fluid circulation, to aid medical diagnosis, therapeutics and surgery planning, designing of prostheses and implants or in tissue engineering. Present book targets specific topics pertaining to the biomechanics of soft tissues. Subjects addressed includes solids and multi-species mixtures as open systems: a continuum mechanics perspective; electro-chemo-mechanical couplings: tissues with a fixed electric charge and growth of biological tissues.
Author: Maria Gazda
Publisher: MDPI
ISBN: 3038979562
Category : Technology & Engineering
Languages : en
Pages : 184
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Book Description
This Special Issue of Crystals contains papers focusing on various properties of conducting ceramics. Multiple aspects of both the research and application of this group of materials have been addressed. Conducting ceramics are the wide group of mostly oxide materials which play crucial roles in various technical applications, especially in the context of the harvesting and storage of energy. Without ion-conducting oxides, such as yttria-stabilized zirconia, doped ceria devices such as solid oxide fuel cells would not exist, not to mention the wide group of other ion conductors which can be applied in batteries or even electrolyzers, besides fuel cells. The works published in this Special Issue tackle experimental results as well as general theoretical trends in the field of ceramic conductors, or electroceramics, as it is often referred to.
