Deep Understanding Of Degradation In Lithium Ion Batteries Through Experimental And First Principles Study
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Deep Understanding Of Degradation In Lithium Ion Batteries Through Experimental And First Principles Study
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Author : Yufang He
language : en
Publisher:
Release Date : 2019
Deep Understanding Of Degradation In Lithium Ion Batteries Through Experimental And First Principles Study written by Yufang He and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
"The growing interests in Lithium-ion Batteries (LIBs) have significantly accelerated the development of active materials. However, the key challenge is that electrode materials suffer from degradation, which include transition metal dissolution, solid electrolyte interphase (SEI) layer formation, and mechanical fracture. To address these issues, applying an ultrathin coating onto active materials via Atomic Layer Deposition (ALD) is an efficient way. Although numerious works have been done for active material performance improvement via ALD technology, the fundamental enhancement mechanisms of ALD coating on battery performance improvement are not yet known. Therefore, this dissertation consists of four papers, which focused on the ALD coating impact on Li intercalation, metal dissolution, Li ion diffusivity and interfacial property of SEI layer via first-principles study. Paper I explained why CeO2 coating has better performance than Al2O3 coating material via faster Li diffusion, facile intercalation, and less mechanical damage of coating. Paper II discovered an unexpected metal dissolution that ultrathin CeO2 coating intensifies the Mn dissolution of LMO and it was confirmed in several ways, including ICP-OES measurement, Mn vacancy formation energy calculation, COOP analysis, PDOS analysis, and cell level performance. Paper III revealed that the ALD CeO2 coating thickness impact on Li ion diffusivity in coated LMO is related to surface and bulk diffusion domination and phase transition of coating layers. Paper IV demonstrated that the fracture strength of inorganic components of SEI layer was higher than organic component, implying that the inorganic-organic interface can effectively block electron transport from electrolyte to anode particles to prevent futher oxidation of active materials"--Abstract, page iv.
Learning The Electrochemistry Of Degradation And Safety In Graphite Porous Electrodes For Lithium Ion Batteries
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Author : Supratim Das
language : en
Publisher:
Release Date : 2022
Learning The Electrochemistry Of Degradation And Safety In Graphite Porous Electrodes For Lithium Ion Batteries written by Supratim Das and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with categories.
Lithium-ion batteries have become the centerpiece of portable technology and electric transportation, as well as for grid stabilization for intermittent renewable sources. The varied applications involve varying requirements for safety, lifetime, and energy/power density. To optimally design these systems for each application, researchers have a very large design space. This requires extensive and costly experimentation or computationally heavy modeling. Specifically for designing batteries with better lifetime and long-term capacity retention, relying on just experiments can take between weeks to months and thousands of cells to get any robust insights for process improvement. Data-driven and physics based modeling, when done rigorously, can help inform experimentation, reducing time and cost requirements. However, modeling battery degradation is challenging as it not only is hard to visualize in-operando, but also affects cell performance at multiple scales - from single particle to porous electrode to the battery pack. Insights obtained from experimentation on a given scale to inform modeling, often performs poorly when it comes to prediction at other scales, limiting applicability. This thesis is a small part of a collaboration between MIT, Stanford, Purdue and Toyota Research Institute to develop data-driven models for predicting battery performance and degradation, called the D3BATT: Data-Driven Design of Lithium-ion Batteries. We adopt a simultaneous 'bottom-up' (first principles) and 'top-down' (statistical analyses of experiments) approach to inform theory formulation at multiple scales. This thesis addresses the idea behind a multiscale 'bottom-up' approach to understanding battery degradation: First, we use experiments designed on simple systems to study the electrochemistry of key graphite degradation mechanisms such as solid-electrolyte interphase (SEI) growth and lithium plating at the single particle scale. This gives us robust kinetic and thermodynamic parameters that are invariant with scale. Second, we extend the single particle theory to the porous electrode scale to capture the effect of multi-particle interactions and macroscopic electrode and electrolyte properties. This is done using the Multiphase Porous Electrode Theory (MPET) software, developed in the Bazant Group at MIT. Third, by simulating various cycling protocols (such as slow and fast charging, full depth-of-discharge vs. shallow formation cycling and open-circuit storage), we can compare the predictions with that of data-driven models obtained from statistical analyses of cell data. This informs the porous electrode model of the key mechanisms relevant at the cell scale, and gives a reliable estimate of electrode-scale parameters that could not have been informed from single-particle models. As an example, we apply the informed porous electrode degradation model to battery formation cycling, and explain what makes a 'good' formation cycling protocol. Model improvement is an ongoing effort in the research group, as new experimental data come to light. This work can be applied to a multitude of cycling scenarios and battery chemistries to assist experimental design.
Data Driven Diagnosis Of Lithium Ion Battery Degradation Under Realistic Usage Conditions
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Author : Devi Sribala Ganapathi
language : en
Publisher:
Release Date : 2023
Data Driven Diagnosis Of Lithium Ion Battery Degradation Under Realistic Usage Conditions written by Devi Sribala Ganapathi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023 with categories.
Lithium-ion batteries have become increasingly prevalent in everyday life, from mobile devices to electric vehicles. In order to swiftly and robustly deploy lithium-ion batteries at large scale in a wide range of applications, an understanding of battery degradation as a function of operating conditions is critical. This dissertation focuses on building this understanding by generating extensive battery cycling datasets and applying a data-driven diagnosis methodology to diagnose the root causes of degradation. In Chapter 1, we introduce lithium-ion batteries and their importance to the global energy landscape. I explain the fundamental internal processes behind lithium ion battery operation and highlight the degradation mechanisms, degradation modes, and performance metrics that we use to describe battery aging. In Chapter 2, we establish a data-driven degradation diagnosis framework that combines degradation inducing aging cycles with diagnostic cycles to probe fundamental degradation modes (lithium inventory, positive electrode capacity, negative electrode capacity, and resistance increase) and device performance metrics over the course of battery lifetime. We apply interpretable machine learning methods to deconvolute the effects of different input parameters on the target outputs (degradation modes and performance metrics). This framework is used to design battery cycling experiments and analyze battery cycling data. In Chapter 3, we apply this framework first to an exploratory dataset to compare the relative importances of key operating conditions on degradation modes and performance metrics. The key results from this study are that charging conditions (charging current and cutoff voltage) have the highest impact on many degradation modes and performance metrics. However, discharging current is the most important factor for a few important degradation modes, and varies widely between devices of the same type depending on the user or application. These results provide the foundation and motivation for our main work: a study on degradation as a function of realistic usage conditions. In Chapter 4, we generate a novel, extensive application-relevant dataset with diverse realistic discharge protocols. We then apply the data-driven degradation diagnosis framework to relate the effects of dynamic operating conditions to lithium-ion battery degradation modes and device performance. We first demonstrate that constant current discharging conditions are not representative of realistic use cases, and that diverse discharge profiles lead to differences in degradation. We find that higher rest states of charge predict higher resistance and shorter cycle life, and that larger values of the higher characteristic frequency predict larger resistances. Finally we reveal that under these realistic discharging conditions, cycling time appears to be more relevant than cycle number for analyzing degradation. In Chapter 5, we summarize the conclusions from all chapters of this work, focusing particularly on the insights from Chapter \ref{chap:realistic}. We also use this chapter to explore future studies that can build upon the results of this work. Proposed work includes both further battery cycling experiments and fundamental studies probing the relationships revealed by the data-driven degradation diagnostics framework. Unrelated to data-driven degradation diagnostics, my first project was investigating the use of eutectic mixtures of quinones as a high energy density redox flow battery electrolyte. In Appendix C, I'll describe some of the work I did supporting this project that are not included in the publications of this study. In Appendix D, I detail the work I did on melting point prediction for small organic redox-active molecules, quinones and hydroquinones. At the beginning of each chapter, I'll establish my specific contributions to the work being described. Additionally, given that data-driven approaches for understanding lithium-ion battery degradation have gained significant traction in recent years, I'll establish the scope of existing works (to the best of my knowledge) near the beginning of each relevant chapter to provide more context for the novelty that this work brings to the field.
Annual Review Of Nano Research
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Author : Guozhong Cao
language : en
Publisher: World Scientific
Release Date : 2006
Annual Review Of Nano Research written by Guozhong Cao and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Science categories.
The first volume in an exciting new series, Annual Review of Nano Research, this formidable collection of review articles sees renowned contributors from eight different countries tackle the most recent advances in nanofabrication, nanomaterials and nanostructures.The broad coverage of topics in nanotechnology and nanoscience also includes a special focus on the hot topic of biomedical applications of nanomaterials. The important names contributing to the volume include: M R Bockstaller (USA), L Duclaux (France), S Forster (Germany), W Fritzsche (Germany), L Jiang (China), C Lopez (Spain), W J Parak (Germany), B Samori (Italy), U S Schubert (The Netherlands), S Shinkai (Japan), A Stein (USA), S M Hou (China), and Y N Xia (USA).The volume serves both as a handy reference for experts active in the field and as an excellent introduction to scientists whose expertise lies elsewhere but who are interested in learning about this cutting-edge research area.
Lithium Ion Batteries
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Author : Mohammad (Mim) Rahimi
language : en
Publisher: MDPI
Release Date : 2021-05-04
Lithium Ion Batteries written by Mohammad (Mim) Rahimi and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-05-04 with Science categories.
Lithium-ion batteries (LIBs), as a key part of the 2019 Nobel Prize in Chemistry, have become increasingly important in recent years, owing to their potential impact on building a more sustainable future. Compared with other batteries developed, LIBs offer high energy density, high discharge power, and a long service life. These characteristics have facilitated a remarkable advance of LIBs in many frontiers, including electric vehicles, portable and flexible electronics, and stationary applications. Since the field of LIBs is advancing rapidly and attracting an increasing number of researchers, it is necessary to often provide the community with the latest updates. Therefore, this book was designed to focus on updating the electrochemical community with the latest advances and prospects on various aspects of LIBs. The materials presented in this book cover advances in several fronts of the technology, ranging from detailed fundamental studies of the electrochemical cell to investigations to better improve parameters related to battery packs.
Lithium Ion Batteries Basics And Applications
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Author : Reiner Korthauer
language : en
Publisher: Springer
Release Date : 2018-08-07
Lithium Ion Batteries Basics And Applications written by Reiner Korthauer and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-08-07 with Technology & Engineering categories.
The handbook focuses on a complete outline of lithium-ion batteries. Just before starting with an exposition of the fundamentals of this system, the book gives a short explanation of the newest cell generation. The most important elements are described as negative / positive electrode materials, electrolytes, seals and separators. The battery disconnect unit and the battery management system are important parts of modern lithium-ion batteries. An economical, faultless and efficient battery production is a must today and is represented with one chapter in the handbook. Cross-cutting issues like electrical, chemical, functional safety are further topics. Last but not least standards and transportation themes are the final chapters of the handbook. The different topics of the handbook provide a good knowledge base not only for those working daily on electrochemical energy storage, but also to scientists, engineers and students concerned in modern battery systems.
Principles And Applications Of Lithium Secondary Batteries
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Author : Jung-Ki Park
language : en
Publisher: John Wiley & Sons
Release Date : 2012-06-13
Principles And Applications Of Lithium Secondary Batteries written by Jung-Ki Park and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-06-13 with Technology & Engineering categories.
Lithium secondary batteries have been key to mobile electronics since 1990. Large-format batteries typically for electric vehicles and energy storage systems are attracting much attention due to current energy and environmental issues. Lithium batteries are expected to play a central role in boosting green technologies. Therefore, a large number of scientists and engineers are carrying out research and development on lithium secondary batteries. The book is written in a straightforward fashion suitable for undergraduate and graduate students, as well as scientists, and engineers starting out in the field. The chapters in this book have been thoroughly edited by a collective of experts to achieve a cohesive book with a consistent style, level, and philosophy. They cover a wide range of topics, including principles and technologies of key materials such as the cathode, anode, electrolyte, and separator. Battery technologies such as design, manufacturing processes, and evaluation methods as well as applications are addressed. In addition, analytical methods for determining electrochemical and other properties of batteries are also included. Hence, this book is a must-have for everyone interested in obtaining all the basic information on lithium secondary batteries.
Battery Management Systems
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Author : H.J. Bergveld
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-09
Battery Management Systems written by H.J. Bergveld and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-09 with Science categories.
Battery Management Systems - Design by Modelling describes the design of Battery Management Systems (BMS) with the aid of simulation methods. The basic tasks of BMS are to ensure optimum use of the energy stored in the battery (pack) that powers a portable device and to prevent damage inflicted on the battery (pack). This becomes increasingly important due to the larger power consumption associated with added features to portable devices on the one hand and the demand for longer run times on the other hand. In addition to explaining the general principles of BMS tasks such as charging algorithms and State-of-Charge (SoC) indication methods, the book also covers real-life examples of BMS functionality of practical portable devices such as shavers and cellular phones. Simulations offer the advantage over measurements that less time is needed to gain knowledge of a battery's behaviour in interaction with other parts in a portable device under a wide variety of conditions. This knowledge can be used to improve the design of a BMS, even before a prototype of the portable device has been built. The battery is the central part of a BMS and good simulation models that can be used to improve the BMS design were previously unavailable. Therefore, a large part of the book is devoted to the construction of simulation models for rechargeable batteries. With the aid of several illustrations it is shown that design improvements can indeed be realized with the presented battery models. Examples include an improved charging algorithm that was elaborated in simulations and verified in practice and a new SoC indication system that was developed showing promising results. The contents of Battery Management Systems - Design by Modelling is based on years of research performed at the Philips Research Laboratories. The combination of basic and detailed descriptions of battery behaviour both in chemical and electrical terms makes this book truly multidisciplinary. It can therefore be read both by people with an (electro)chemical and an electrical engineering background.
Future Lithium Ion Batteries
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Author : Ali Eftekhari
language : en
Publisher: Royal Society of Chemistry
Release Date : 2019-03-14
Future Lithium Ion Batteries written by Ali Eftekhari and has been published by Royal Society of Chemistry this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-03-14 with Science categories.
Lithium-ion batteries are an established technology with recent large-scale batteries finding emerging markets for electric vehicles and household energy storage. Battery research during the past two decades has focussed on practical improvements to available batteries, such as cell design to enhance energy density, which are currently nearing their maximum potential. We must now consider alternative avenues of research in pursuit of a new breakthrough in this technology. This book collects authoritative perspectives from leading researchers to project the emerging opportunities in the field of lithium-ion batteries. Covering topics including anode and cathode materials, electrolytes, emerging markets and the challenges and opportunities of lithium-ion battery supply, it will provide researchers with cutting-edge leads to advance the next generation of materials. Edited by a pioneer in the field, and with contributions from experts from across the globe, this book will be of use to graduate students and researchers in academia and industry interested in lithium-ion batteries and energy storage.
Studies On Anionic Redox In Li Rich Cathode Materials Of Li Ion Batteries
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Author : Biao Li
language : en
Publisher: Springer
Release Date : 2018-12-13
Studies On Anionic Redox In Li Rich Cathode Materials Of Li Ion Batteries written by Biao Li and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-12-13 with Technology & Engineering categories.
This book presents studies and discussions on anionic redox, which can be used to boost the capacities of cathode electrodes by providing extra electron transfer. This theoretically and practically significant book facilitates the implementation of anionic redox in electrodes for real-world use and accelerates the development of high-energy-density lithium-ion batteries. Lithium-ion batteries, as energy storage systems, are playing a more and more important role in powering modern society. However, their energy density is still limited by the low specific capacity of the cathode electrodes. Based on a profound understanding of band theory, the author has achieved considerable advances in tuning the redox process of lithium-rich electrodes to obtain enhanced electrochemical performance, identifying both the stability mechanism of anionic redox in lithium-rich cathode materials, and its activation mechanism in these electrode systems.