Tuning Wettability Of Gallium Based Liquid Metal Anode For Lithium Ion Battery Via A Metal Mixing Strategy
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Tuning Wettability Of Gallium Based Liquid Metal Anode For Lithium Ion Battery Via A Metal Mixing Strategy
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Author : Yang Lv
language : en
Publisher: OAE Publishing Inc.
Release Date : 2024-03-14
Tuning Wettability Of Gallium Based Liquid Metal Anode For Lithium Ion Battery Via A Metal Mixing Strategy written by Yang Lv and has been published by OAE Publishing Inc. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-03-14 with Technology & Engineering categories.
Exploring highly stable alloy-type anodes for rechargeable lithium batteries is urgent with the ever-increasing demands for high energy density batteries. The liquid metal (LM)-based anodes demonstrate great potential in advanced lithium-ion batteries due to their high energy densities and self-healing performance. However, its high surface tension leads to poor wettability towards the current collector and higher interfacial contact resistance. In this study, we developed a new free-standing LM-based anode LM-W10/Cu foil with good wettability and machinability by mixing high-melting-point tungsten (W) nanoparticles. It greatly improves the inherent defects of poor interfacial contact and lithium diffusion kinetics between the LM and current collectors, reduces the tedious and costly electrode manufacturing process, and regulates lithium deposition behaviors. And this metal mixing strategy has a negligible effect on the self-healing nature of LM. Symmetric cells of LM-W10/Cu foil anodes displayed a low overpotential (~13 mV) and cycled stably for more than 8,000 h (4,000 cycles) at 0.5 or 1 mA/cm2; full cells coupled with LiFePO4 cathode showed a high capacity retention of 95.15% after 150 cycles.
The Wetting Properties Of Gallium Based Liquid Metal With Copper And Nickel
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Author :
language : en
Publisher:
Release Date : 2024
The Wetting Properties Of Gallium Based Liquid Metal With Copper And Nickel written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024 with categories.
Designing The Electrochemical Interface To Enable Lithium Metal Batteries
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Author : Supriya Koul
language : en
Publisher:
Release Date : 2022
Designing The Electrochemical Interface To Enable Lithium Metal Batteries written by Supriya Koul 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.
Although Li-ion battery is one of the most widely used energy storage devices, there have been extensive efforts to push its limit to meet the ever-increasing demands to improve its energy density for applications such as electric vehicles, portable electronics, and grid storages. Here, Li metal anode plays a key role in the next generation energy storage devices, ultimately enabling the anode-free configuration. However, there are major challenges that need to be overcome for a successful deployment of anode-free batteries. These include designing a competitive SEI, low Coulombic efficiency, and the formation of dendrites. To realize an effective anode-free configuration modifying the copper collector, adding a 3D host and tuning the electrolyte of the key. In this work, we adopted gallium-based liquid metal (LM) as a coating layer on a copper current collector to uniformly deposit Li and prevent the dendrite formation to improve the cycle performance. The effect of the LM coating was confirmed by in situ transmission electron microscopy and optical microscopy observations. LM reduced the charge/discharge overpotentials with its high affinity with Li. It also contributed to decompose the dendritic Li in the discharge process reducing the dead Li disconnected from the current collector. The LM coating was further fortified by graphene oxide (GO) overlayer to prevent the direct contact of electrolyte with uniformly deposited Li. The GO overlayer acted as a barrier and as a 3D host for the deposited Li. Furthermore, we combined in situ TEM and first principles calculations to investigate the electrochemical stability of the solid electrolyte and the structural evolution in contact with Li to study a potential direction to mitigate Li dendrites and enable Li metal anode.
Liquid Electrolyte Chemistry For Lithium Metal Batteries
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Author : Jianmin Ma
language : en
Publisher: John Wiley & Sons
Release Date : 2022-02-09
Liquid Electrolyte Chemistry For Lithium Metal Batteries written by Jianmin Ma 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 2022-02-09 with Science categories.
Liquid Electrolyte Chemistry for Lithium Metal Batteries An of-the-moment treatment of liquid electrolytes used in lithium metal batteries Considered by many as the most-promising next-generation batteries, lithium metal batteries have grown in popularity due to their low potential and high capacity. Crucial to the development of this technology, electrolytes can provide efficient electrode electrolyte interfaces, assuring the interconversion of chemical and electrical energy. The quality of electrode electrolyte interphase, in turn, directly governs the performance of batteries. In Liquid Electrolyte Chemistry, provides a comprehensive look at the current understanding and status of research regarding liquid electrolytes for lithium metal batteries. Offering an introduction to lithium-based batteries from development history to their working mechanisms, the book further offers a glimpse at modification strategies of anode electrolyte interphases and cathode electrolytic interphases. More, by discussing the high-voltage electrolytes from their solvents—organic solvents and ionic liquids—to electrolyte additives, the text provides a thorough understanding on liquid electrolyte chemistry in the remit of lithium metal batteries. Liquid Electrolyte Chemistry for Lithium Metal Batteries readers will also find: A unique focus that reviews the development of liquid electrolytes for lithium metal batteries State-of-the-art progress and development of electrolytes for lithium metal batteries Consideration of safety, focusing the design principles of flame retardant and non-flammable electrolytes Principles and progress on low temperature and high temperature electrolytes Liquid Electrolyte Chemistry for Lithium Metal Batteries is a useful reference for electrochemists, solid state chemists, inorganic chemists, physical chemists, surface chemists, materials scientists, and the libraries that supply them.
Tuning And Probing Initial Stages Of Lithium Deposition For Lithium Metal Battery Anodes
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Author : Allen Yee-Lun Pei
language : en
Publisher:
Release Date : 2019
Tuning And Probing Initial Stages Of Lithium Deposition For Lithium Metal Battery Anodes written by Allen Yee-Lun Pei 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.
Rechargeable lithium-ion batteries have become ubiquitous energy storage devices in society, functioning as power sources for electronics ranging from personal devices to electric transportation to grid-scale energy storage. However, in order to meet fast-growing demands for increased range of electric vehicles and longer times between charging of devices, higher energy density batteries with next-generation chemistries need to be developed. High capacity electrode materials like lithium metal are ideal candidates for advanced batteries, but suffer various problems which remain unsolved. Much research has been dedicated to elucidating and mitigating the safety and performance problems of lithium metal research, but bringing practical lithium batteries to market has still been impossible. In Chapter 1, the background and problems of lithium metal anodes are introduced, along with some discussion about current strategies for enabling their use. In Chapter 2, initial studies on the nucleation of lithium metal during electrodeposition are discussed and put into context the importance of the initial states of lithium metal growth. Chapters 3 and 4 introduce some examples of soft polymeric protective coatings developed to prevent performance decay of lithium electrodes, in addition to studies of standard polymers and determination of polymer properties which are critical to functional coatings. Chapter 5 introduces microelectrodes as a tool for high rate studies of lithium metal kinetics during deposition and stripping, and demonstrate the growth of highly faceted lithium metal particles during these high rate deposition experiments. Finally, lithium metal is put into context for future use as a practical anode material, and considerations related to the manufacturing and production of lithium metal-containing cells are discussed. Ultimately, it will be the combination of both advances in battery technology through research like what is presented here and the advent of new manufacturing techniques compatible with lithium metal that will enable a new paradigm in lithium-ion anode technology.
Theoretical Study On Graphite And Lithium Metal As Anode Materials For Next Generation Rechargeable Batteries
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Author : Gabin Yoon
language : en
Publisher: Springer Nature
Release Date : 2022-07-08
Theoretical Study On Graphite And Lithium Metal As Anode Materials For Next Generation Rechargeable Batteries written by Gabin Yoon and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-07-08 with Science categories.
This thesis describes in-depth theoretical efforts to understand the reaction mechanism of graphite and lithium metal as anodes for next-generation rechargeable batteries. The first part deals with Na intercalation chemistry in graphite, whose understanding is crucial for utilizing graphite as an anode for Na-ion batteries. The author demonstrates that Na ion intercalation in graphite is thermodynamically unstable because of the unfavorable Na-graphene interaction. To address this issue, the inclusion of screening moieties, such as solvents, is suggested and proven to enable reversible Na-solvent cointercalation in graphite. Furthermore, the author provides the correlation between the intercalation behavior and the properties of solvents, suggesting a general strategy to tailor the electrochemical intercalation chemistry. The second part addresses the Li dendrite growth issue, which is preventing practical application of Li metal anodes. A continuum mechanics study considering various experimental conditions reveals the origins of irregular growth of Li metal. The findings provide crucial clues for developing effective counter strategies to control the Li metal growth, which will advance the application of high-energy-density Li metal anodes.
Lithium Metal Anodes And Rechargeable Lithium Metal Batteries
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Author : Ji-Guang Zhang
language : en
Publisher: Springer
Release Date : 2016-10-06
Lithium Metal Anodes And Rechargeable Lithium Metal Batteries written by Ji-Guang Zhang and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-10-06 with Technology & Engineering categories.
This book provides comprehensive coverage of Lithium (Li) metal anodes for rechargeable batteries. Li is an ideal anode material for rechargeable batteries due to its extremely high theoretical specific capacity (3860 mAh g-1), low density (0.59 g cm-3), and the lowest negative electrochemical potential (−3.040 V vs. standard hydrogenelectrodes). Unfortunately, uncontrollable dendritic Li growth and limited Coulombic efficiency during Li deposition/stripping inherent in these batteries have prevented their practical applications over the past 40 years. With the emergence of post Liion batteries, safe and efficient operation of Li metal anodes has become an enabling technology which may determine the fate of several promising candidates for the next generation energy storage systems, including rechargeable Li-air batteries, Li-S batteries, and Li metal batteries which utilize intercalation compounds as cathodes. In this work, various factors that affect the morphology and Coulombic efficiency of Li anodes are analyzed. The authors also present the technologies utilized to characterize the morphology of Li deposition and the results obtained by modeling of Li dendrite growth. Finally, recent developments, especially the new approaches that enable safe and efficient operation of Li metal anodes at high current densities are reviewed. The urgent need and perspectives in this field are also discussed. The fundamental understanding and approaches presented in this work will be critical for the applicationof Li metal anodes. The general principles and approaches can also be used in other metal electrodes and general electrochemical deposition of metal films.
From Intrinsic To Extrinsic Design Of Lithium Ion Battery Layered Oxide Cathode Material Via Doping Strategies
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Author : Chul-Ho Jung
language : en
Publisher: Springer Nature
Release Date : 2022-10-20
From Intrinsic To Extrinsic Design Of Lithium Ion Battery Layered Oxide Cathode Material Via Doping Strategies written by Chul-Ho Jung and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10-20 with Technology & Engineering categories.
This book addresses the comprehensive understanding of Ni-rich layered oxide of lithium-ion batteries cathodes materials, especially focusing on the effect of dopant on the intrinsic and extrinsic effect to its host materials. This book can be divided into three parts, that is, 1. overall understanding of layered oxide system, 2. intrinsic effect of dopant on layered oxides, and 3. extrinsic effect of dopant on layered oxides. To truly understand and discover the fundamental solution (e.g. doping) to improve the Ni-rich layered oxides cathodic performance, understanding the foundation of layered oxide degradation mechanism is the key, thus, the first chapter focuses on discovering the true degradation mechanisms of layered oxides systems. Then, the second and third chapter deals with the effect of dopant on alleviating the fundamental degradation mechanism of Ni-rich layered oxides, which we believe is the first insight ever been provided. The content described in this book will provide research insight to develop high-performance Ni-rich layered oxide cathode materials and serve as a guide for those who study energy storage systems.
Development Of Stable High Capacity Silicon Based Anode And Lithium Metal Anode For Lithium Ion Battery
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Author : Qingquan Huang
language : en
Publisher:
Release Date : 2018
Development Of Stable High Capacity Silicon Based Anode And Lithium Metal Anode For Lithium Ion Battery written by Qingquan Huang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
High-capacity Si-based anode is being considered as promising anode material for next generation of Li-ion battery. The energy density could be increased from 250-260 Wh kg-1 to 300-330 Wh kg-1 via replacing graphite with Si-based anode. However, for high-loading Si-based anode, the huge volume change of Si (400%) or SiO (200%) particles during lithiation/delithiation will arise large electrode thickness change. After repeated electrode expansion and contraction, the electrode integrity is seriously damaged, including large electrode cracking, electrode delamination or peeling-off from Cu current collector, as well as continuous growth of solid electrolyte interphase (SEI) layer. When pairing it with commercial cathode, the damage of electrode integrity results in large amount of irreversible lithium ions loss in each cycle and low full-cell Coulombic efficiency of 99.5-99.7%. Thus the full-cell exhibits fast capacity fading and limited cycle life. Another challenge of SiO anode is its low first cycle Coulombic efficiency of 50-60%, which causes huge irreversible lithium ions loss for the first cycle of full-cell and dramatically decreases the cell capacity.In Chapter 1, we will give an introduction to lithium-ion battery, cell energy density, and advantages and challenges of Si-based anode. The Chapter 2 introduces two strategies to solve the challenges of Si-based anode: including design of nanostructured Si and advanced polymer binder. Also we will also talk about the importance of electrode integrity and the previous work on improving electrode integrity.In Chapter 3, we reported an elastic and stretchable polyurethane-urea (PUU) gel polymer electrolyte (GPE) coating strategy to improve cycling stability of high-areal-capacity SiO anode. The PUU GPE functions as intra-electrode cushion to accommodate the volume change of SiO electrode. It can alleviate electrode thickness change, inhibit electrode cracking, and improve electrode adhesion strength on Cu current collector. The improved electrode structure integrity reduces the continuous growth of SEI layer. The half-cell of SiO electrode with PUU coating shows a reversible capacity of 3.0 mAh cm-2 for 280 cycles. When paring with commercial cathode, the full-cell shows a reversible capacity of 2.1 mAh cm-2 for 200 cycles and 80% capacity retention for 500 cycles with improved full-cell Coulombic efficiency of 99.9%.In Chapter 4, we demonstrate chemical vapor deposition (CVD) growth of carbon layer on SiOx (C-SiOx). The carbon coating is composed of dense graphene layers. It can not only increase the electronic conductivity, but also decrease the amount of electrolyte decomposition. Thus the first cycle Coulombic efficiency increases to 74.1%. Moreover, when blending C-SiOx with graphite anode, the composite anode shows high first cycle CE of 86.4%.In Chapter 5, we report a composite LixSi/gel polymer electrolyte composite protection film on the top of lithium meal via simple cast coating approach. The LixSi functions as seeds for lithium nucleation and it has large surface area, thus it can reduce local current density and prevent lithium dendrite growth. When paring with lithium iron phosphate cathode, the cell with composite protection films shows stable capacity at 2.0 mAh cm-2 for 400 cycles.
Modeling Of Adhesion Mechanisms Of Graphite Based Anodes For Lithium Ion Batteries67z
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Author : Nicolas Billot
language : en
Publisher: utzverlag GmbH
Release Date : 2022-08-16
Modeling Of Adhesion Mechanisms Of Graphite Based Anodes For Lithium Ion Batteries67z written by Nicolas Billot and has been published by utzverlag GmbH this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-08-16 with Technology & Engineering categories.