PDF Publication Title:
Text from PDF Page: 086
REPORT OF THE BASIC RESEARCH NEEDS WORKSHOP 103 102 101 100 Supercapacitors Li-ion batteries Al-ion battery Na-ion battery 10-1 All-solid-state batteries Li-S batteries Mg battery Li-O2 batteries 102 103 104 Specific energy, E (Wh kg-1) 100 101 Figure 3.1.1. Ragone plot showing the specific power and energy of a variety of current and emerging electrochemical energy storage systems. From Ref. 1. Reproduced with permission of Nature Publishing Group. In recent decades, there has been some progress towards energy storage with both high power and energy density. Advances in the discovery and synthesis of solid-state electrolyte materials5-8 have shown that all-solid- state cells with improved power and energy density compared to Li-ion batteries are a tantalizing possibility, but this success has so far been mostly limited to thin film architectures. Recent advances relating to the addition of interfacial phases between electrodes and solid-state electrolytes to reduce interfacial resistance may provide clues for increasing solid-state battery thickness and energy density.9 However, a new fabrication and manufacturing paradigm, quite different from the technologies that are used today, is perhaps needed to scale up solid-state battery architectures for energy storage. Several possibilities are emerging or can be foreseen, including thick film/particulate electrolyte and electrode layers, hybrids of thick film structures with thin film interlayers, thin-film 3D structures, and multilayers of solid-state batteries. In traditional liquid electrolyte-based batteries, new mesoscale electrode architectures have also shown higher power capabilities, and in some cases higher energy density, with both conventional and next generation electrode materials (see “Electrode Architectures” sidebar). Such architectures include alternating lateral mesostructured electrodes,10 electrodes with aligned porosity11 and/or active materials that reduce ion diffusion lengths,12 and microscale secondary particles made up of nanoscale primary active particles.13,14 Novel electrolyte concepts, such as solvent-in-salt electrolytes, have improved ion transport through electrode/electrolyte interfaces in both aqueous and non-aqueous media.15,16 Finally, decoupling energy and power via the use of flow cell architectures provides an alternative pathway to balancing and improving energy and power concurrently from a cell design point of view,17 although the overall energy density of redox flow batteries is much lower than traditional Li-ion batteries. Despite these recent breakthroughs, simultaneous high power and energy performance sufficient for current and emerging applications has not yet been achieved. It is evident that overcoming energy-power coupling is a complex issue that requires fundamental breakthroughs in materials synthesis and understanding of the charge transport properties and failure modes in complex electrode architectures. Today’s electrochemical systems are limited by relatively long ion/electron transport distances, slow electrochemical reaction kinetics, and the necessary use of separate phases to conduct ions and electrons. To overcome these issues, entirely new concepts and ideas are necessary to develop new multifunctional materials and to integrate nanostructures across multiple length scales to form new architectures. Furthermore, basic research and new techniques are 80 PANEL 1 REPORT Specific power, P (kW kg-1)PDF Image | Next Generation Electrical Energy Storage
PDF Search Title:
Next Generation Electrical Energy StorageOriginal File Name Searched:
BRN-NGEES_rpt-low-res.pdfDIY PDF Search: Google It | Yahoo | Bing
Sulfur Deposition on Carbon Nanofibers using Supercritical CO2 Sulfur Deposition on Carbon Nanofibers using Supercritical CO2. Gamma sulfur also known as mother of pearl sulfur and nacreous sulfur... More Info
CO2 Organic Rankine Cycle Experimenter Platform The supercritical CO2 phase change system is both a heat pump and organic rankine cycle which can be used for those purposes and as a supercritical extractor for advanced subcritical and supercritical extraction technology. Uses include producing nanoparticles, precious metal CO2 extraction, lithium battery recycling, and other applications... More Info
CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)