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Nanostructured Hybrid Electrolytes for Lithium Metal Batteries

Nanostructured Hybrid Electrolytes for Lithium Metal Batteries
Author: Jennifer Lyn Schaefer
Publisher:
Total Pages: 250
Release: 2014
Genre:
ISBN:

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It has long been recognized that secondary batteries containing lithium metal anodes have some of the highest theoretical energy densities of known battery chemistries, due to the light weight and low deposition potential of lithium metal. Lithium metal batteries have several roadblocks to effective, wide-spread implementation: lithium metal is reactive with many lithium-ion electrolytes causing low coulombic efficiency and it electrodeposits unevenly upon recharge, creating a safety hazard due to potential short-circuit. Polymer electrolytes have been under investigation for several years due to their relatively low reactivity with lithium metal and potential to electrodeposit more uniformly, due to their higher mechanical strength. This dissertation researches polymer-ceramic hybrid electrolytes with several goals: improving room temperature ionic conductivity of the electrolytes while maintaining chemical stability and mechanical integrity, allowing tunability of mechanical properties, improving lithium-ion transference number of the electrolyte, and studying the lithium metal dendrite growth as a function of electrolyte properties. It is found that constraint of the polymer chain by tethering to a nanoparticle improves ambient temperature ionic conductivity by mitigating matrix crystallization. Immobilization of anionic ligands onto the nanoparticle is found to be a facile way to synthesize nanometric lithium salts with improved transference numbers; importantly, the chemistry of the suspending solvent is found to have a significant impact on ionic conductivity. It is found that polyether-based electrolytes with and without hybrid nanoparticle fillers exhibit the same lithium metal battery lifetime regardless of mechanical properties or ionic conductivity. Surprisingly, certain copolymer electrolytes are found to provide for exceeding longer lifetimes.


Rational Design of Nanostructured Polymer Electrolytes and Solid–Liquid Interphases for Lithium Batteries

Rational Design of Nanostructured Polymer Electrolytes and Solid–Liquid Interphases for Lithium Batteries
Author: Snehashis Choudhury
Publisher: Springer Nature
Total Pages: 230
Release: 2019-09-25
Genre: Technology & Engineering
ISBN: 3030289435

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This thesis makes significant advances in the design of electrolytes and interfaces in electrochemical cells that utilize reactive metals as anodes. Such cells are of contemporary interest because they offer substantially higher charge storage capacity than state-of-the-art lithium-ion battery technology. Batteries based on metallic anodes are currently considered impractical and unsafe because recharge of the anode causes physical and chemical instabilities that produce dendritic deposition of the metal leading to catastrophic failure via thermal runaway. This thesis utilizes a combination of chemical synthesis, physical & electrochemical analysis, and materials theory to investigate structure, ion transport properties, and electrochemical behaviors of hybrid electrolytes and interfacial phases designed to prevent such instabilities. In particular, it demonstrates that relatively low-modulus electrolytes composed of cross-linked networks of polymer-grafted nanoparticles stabilize electrodeposition of reactive metals by multiple processes, including screening electrode electrolyte interactions at electrochemical interfaces and by regulating ion transport in tortuous nanopores. This discovery is significant because it overturns a longstanding perception in the field of nanoparticle-polymer hybrid electrolytes that only solid electrolytes with mechanical modulus higher than that of the metal electrode are able to stabilize electrodeposition of reactive metals.


Rational Design of Nanostructured Polymer Electrolytes and Solid-liquid Interphases for Lithium Batteries

Rational Design of Nanostructured Polymer Electrolytes and Solid-liquid Interphases for Lithium Batteries
Author: Snehashis Choudhury
Publisher:
Total Pages: 239
Release: 2019
Genre: Lithium cells
ISBN: 9783030289447

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This thesis makes significant advances in the design of electrolytes and interfaces in electrochemical cells that utilize reactive metals as anodes. Such cells are of contemporary interest because they offer substantially higher charge storage capacity than state-of-the-art lithium-ion battery technology. Batteries based on metallic anodes are currently considered impractical and unsafe because recharge of the anode causes physical and chemical instabilities that produce dendritic deposition of the metal leading to catastrophic failure via thermal runaway. This thesis utilizes a combination of chemical synthesis, physical & electrochemical analysis, and materials theory to investigate structure, ion transport properties, and electrochemical behaviors of hybrid electrolytes and interfacial phases designed to prevent such instabilities. In particular, it demonstrates that relatively low-modulus electrolytes composed of cross-linked networks of polymer-grafted nanoparticles stabilize electrodeposition of reactive metals by multiple processes, including screening electrode electrolyte interactions at electrochemical interfaces and by regulating ion transport in tortuous nanopores. This discovery is significant because it overturns a longstanding perception in the field of nanoparticle-polymer hybrid electrolytes that only solid electrolytes with mechanical modulus higher than that of the metal electrode are able to stabilize electrodeposition of reactive metals.


Nanotechnology for Lithium-Ion Batteries

Nanotechnology for Lithium-Ion Batteries
Author: Yaser Abu-Lebdeh
Publisher: Springer Science & Business Media
Total Pages: 288
Release: 2012-10-17
Genre: Science
ISBN: 146144604X

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This unique combined analysis of two scientific success stories—lithium-ion batteries and nanotechnology—has contributions from leading international experts who analyze the positive interplay between them, as well as future developments in energy storage.


Nanostructured Materials for Next-Generation Energy Storage and Conversion

Nanostructured Materials for Next-Generation Energy Storage and Conversion
Author: Qiang Zhen
Publisher: Springer Nature
Total Pages: 472
Release: 2019-10-10
Genre: Technology & Engineering
ISBN: 3662586754

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Volume 3 of a 4-volume series is a concise, authoritative and an eminently readable and enjoyable experience related to lithium ion battery design, characterization and usage for portable and stationary power. Although the major focus is on lithium metal oxides or transition metal oxide as alloys, the discussion of fossil fuels is also presented where appropriate. This monograph is written by recognized experts in the field, and is both timely and appropriate as this decade will see application of lithium as an energy carrier, for example in the transportation sector. This Volume focuses on the fundamentals related to batteries using the latest research in the field of battery physics, chemistry, and electrochemistry. The research summarised in this book by leading experts is laid out in an easy-to-understand format to enable the layperson to grasp the essence of the technology, its pitfalls and current challenges in high-power Lithium battery research. After introductory remarks on policy and battery safety, a series of monographs are offered related to fundamentals of lithium batteries, including, theoretical modeling, simulation and experimental techniques used to characterize electrode materials, both at the material composition, and also at the device level. The different properties specific to each component of the batteries are discussed in order to offer tradeoffs between power and energy density, energy cycling, safety and where appropriate end-of-life disposal. Parameters affecting battery performance and cost, longevity using newer metal oxides, different electrolytes are also reviewed in the context of safety concerns and in relation to the solid-electrolyte interface. Separators, membranes, solid-state electrolytes, and electrolyte additives are also reviewed in light of safety, recycling, and high energy endurance issues. The book is intended for a wide audience, such as scientists who are new to the field, practitioners, as well as students in the STEM and STEP fields, as well as students working on batteries. The sections on safety and policy would be of great interest to engineers and technologists who want to obtain a solid grounding in the fundamentals of battery science arising from the interaction of electrochemistry, solid-state materials science, surfaces, and interfaces.


Nanostructures and Nanomaterials for Batteries

Nanostructures and Nanomaterials for Batteries
Author: Yu-Guo Guo
Publisher: Springer
Total Pages: 379
Release: 2019-05-17
Genre: Technology & Engineering
ISBN: 9811362335

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This book discusses the roles of nanostructures and nanomaterials in the development of battery materials for state-of-the-art electrochemical energy storage systems, and provides detailed insights into the fundamentals of why batteries need nanostructures and nanomaterials. It explores the advantages offered by nanostructure electrode materials, the challenges of using nanostructured materials in batteries, as well as the rational design of nanostructures and nanomaterials to achieve optimal battery performance. Further, it closely examines the latest advances in the application of nanostructures and nanomaterials for future rechargeable batteries, including high-energy and high-power lithium ion batteries, lithium metal batteries (Li-O2, Li-S, Li-Se, etc.), all-solid-state batteries, and other metal batteries (Na, Mg, Al, etc.). It is a valuable reference resource for readers interested in or involved in research on energy storage, energy materials, electrochemistry and nanotechnology.


Polymerized Ionic Liquids

Polymerized Ionic Liquids
Author: Ali Eftekhari
Publisher: Royal Society of Chemistry
Total Pages: 564
Release: 2017-09-18
Genre: Science
ISBN: 1782629602

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The series covers the fundamentals and applications of different smart material systems from renowned international experts.


Nanomaterials for Lithium-Ion Batteries

Nanomaterials for Lithium-Ion Batteries
Author: Rachid Yazami
Publisher: CRC Press
Total Pages: 452
Release: 2013-10-08
Genre: Science
ISBN: 9814364231

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This book covers the most recent advances in the science and technology of nanostructured materials for lithium-ion application. With contributions from renowned scientists and technologists, the chapters discuss state-of-the-art research on nanostructured anode and cathode materials, some already used in commercial batteries and others still in de


Nanomaterials for Electrochemical Energy Storage

Nanomaterials for Electrochemical Energy Storage
Author: Rinaldo Raccichini
Publisher: Elsevier
Total Pages: 388
Release: 2021-11-24
Genre: Technology & Engineering
ISBN: 0128214368

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Nanomaterials for Electrochemical Energy Storage: Challenges and Opportunities, Volume Nineteen provides an objective, realistic overview on the use of nanomaterials for various rechargeable electrochemical energy storage systems. It delivers a clear message on opportunities and critical aspects for the application of nanomaterials in currently available commercial devices (i.e., lithium-ion, supercapacitors, lithium-ion capacitors) and in the most promising battery technologies (e.g., lithium-sulphur, sodium-ion, metal-air, multivalent-ion batteries, dual-ion). In addition, it covers the use of nanomaterials on two of the most promising research pathways, specifically solid electrolytes and nanostructured alkali metal interfaces. Finally, the book outlines future use scenarios in developed and industrial applications. Nanomaterials have been considered as the “holy grail of electrochemical energy storage during recent decades. Compounds and composites made of nanomaterials have opened unexpected research avenues, allowing entirely new classes of materials to be explored. Covers the major nanomaterials classes used for electrochemical energy storage devices Assesses the major challenges of using nanomaterials for energy storage Shows how the use of nanomaterials can lead to lower cost and more efficient energy storage products and devices