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Fast Ionic Conductors and Solid-Solid Interfaces Designed for Next Generation Solid-State Batteries

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889456475 Year: Pages: 136 DOI: 10.3389/978-2-88945-647-5 Language: English
Publisher: Frontiers Media SA
Subject: General and Civil Engineering
Added to DOAB on : 2019-01-23 14:53:43
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The EV Everywhere Grand Challenge requires a breakthrough in energy storage technology. State-of-the-art Li-ion technology is currently used in low volume production plug-in hybrid and niche high performance vehicles; however, the widespread adoption of electrified powertrains requires a four-fold increase in performance, 25% lower cost, and safer batteries without the possibility of combustion. One approach for this target is to develop solid-state batteries (SSBs) offering improved performance, reduced peripheral mass, and unprecedented safety. SSB could offer higher energy density, by enabling new cell designs, such as bipolar stacking, leading to reduced peripheral mass and volume. To enable SSBs, a crucial requirement is a fast-ion conducting solid electrolyte. To date, myriad solid-state electrolytes have been reported exhibiting Li ion conductivities approaching those of today’s liquid electrolyte membranes. Moreover, several new materials are reported to have wide electrochemical window and single-ion mobility. Leveraging decades of research focused on Li-based electrodes for Li-ion batteries, the discovery of new solid-state electrolytes could enable access to these electrodes; specifically, Li metal and high voltage electrodes (>5V). However, transitioning SSBs from the laboratory to EVs requires answers to fundamental questions such as: (1) how does Li-ion transport through the solid electrolyte / solid electrode interface work? (2) will solid electrolytes enable bulk-scale Li metal anode and high voltage cathodes?, and (3) how will ceramic-based cells be manufactured in large-format battery packs? The purpose of this Research Topic is to provide new insights obtained through the fundamental understanding of materials chemistry, electrochemistry, advanced analysis and computational simulations. We hope these aspects will summarize current challenges and provide opportunities for future research to develop the next generation SSBs.

Advances in Electrochemical Energy Materials

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ISBN: 9783039286423 / 9783039286430 Year: Pages: 156 DOI: 10.3390/books978-3-03928-643-0 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Physics (General)
Added to DOAB on : 2020-06-09 16:38:57
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Electrochemical energy storage is becoming essential for portable electronics, electrified transportation, integration of intermittent renewable energy into grids, and many other energy and power applications. The electrode materials and their structures, in addition to the electrolytes, play key roles in supporting a multitude of coupled physicochemical processes that include electronic, ionic, and diffusive transport in electrode and electrolyte phases, electrochemical reactions and material phase changes, as well as mechanical and thermal stresses, thus determining the storage energy density and power density, conversion efficiency, performance lifetime, and system cost and safety. Different material chemistries and multiscale porous structures are being investigated for high performance and low cost. The aim of this Special Issue is to report the recent advances in materials used in electrochemical energy storage that encompass supercapacitors and rechargeable batteries.

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