A5081998769- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Extraction and Separation Processes
- Advanced battery technologies research
- Thermal Expansion and Ionic Conductivity
- Inorganic Chemistry and Materials
- Electrocatalysts for Energy Conversion
- Recycling and Waste Management Techniques
- Fuel Cells and Related Materials
- Supercapacitor Materials and Fabrication
- Conducting polymers and applications
- Perovskite Materials and Applications
- Semiconductor materials and interfaces
- Semiconductor materials and devices
- Solid-state spectroscopy and crystallography
- Chalcogenide Semiconductor Thin Films
- Advanced Nanomaterials in Catalysis
- Chemical Synthesis and Characterization
- Advanced Thermoelectric Materials and Devices
University of California, San Diego
2019-2024
Silicon anode solid-state batteries Research on has focused lithium metal anodes. Alloy-based anodes have received less attention in part due to their lower specific capacity even though they should be safer. Tan et al . developed a slurry-based approach create films from micrometer-scale silicon particles that can used with carbon binders. When incorporated into batteries, showed good performance across range of temperatures and excellent cycle life full cells. —MSL
Abstract The recent proliferation of renewable energy generation offers mankind hope, with regard to combatting global climate change. However, reaping the full benefits these sources requires ability store and distribute any generated in a cost‐effective, safe, sustainable manner. As such, sodium‐ion batteries (NIBs) have been touted as an attractive storage technology due their elemental abundance, promising electrochemical performance environmentally benign nature. Moreover, new...
Sulfide-based solid electrolytes are promising candidates for all solid-state batteries (ASSBs) due to their high ionic conductivity and ease of processability. However, narrow electrochemical stability window causes undesirable electrolyte decomposition. Existing literature on Li-ion ASSBs report an irreversible nature such decompositions, while Li–S show evidence some reversibility. Here, we explain these observations by investigating the redox mechanism argyrodite Li6PS5Cl at various...
All-solid-state batteries exhibit good performance even at low operating stack pressure when soft electrode materials are used.
Enabling long cyclability of high-voltage oxide cathodes is a persistent challenge for all-solid-state batteries, largely because their poor interfacial stabilities against sulfide solid electrolytes. While protective coating layers such as LiNbO3 (LNO) have been proposed, its precise working mechanisms are still not fully understood. Existing literature attributes reductions in impedance growth to the coating's ability prevent reactions. However, true nature more complex, with cathode...
Abstract As the dominant means of energy storage technology today, widespread deployment lithium‐ion batteries (LIBs) would inevitably generate countless spent at their end life. From perspectives environmental protection and resource sustainability, recycling is a necessary strategy to manage end‐of‐life LIBs. Compared with traditional hydrometallurgical pyrometallurgical methods, emerging direct technology, rejuvenating electrode materials via non‐destructive way, has attracted rising...
“Thick electrode using high voltage cathode” can be considered, since this research focuses on cathode materials.
When exposed to moisture, Li 6 PS 5 Cl undergoes both hydrolysis and hydration reactions. It can be partially recovered by heat treatment, but causes the formation of LiCl, 2 S, 3 PO 4 , oxysulfides due irreversible sulfur loss.
Abstract Prelithiation as a facile and effective method to compensate the lithium inventory loss in initial cycle has progressed considerably both on anode cathode sides. However, much less research been devoted prelithiation effect interface stabilization for long‐term cycling of Si‐based anodes. An in‐depth quantitative analysis that forms during SiO x is presented here results are compared with prelithiaton Si Local structure probe combined detailed electrochemical reveals characteristic...
All-solid-state batteries (ASSBs) are one of the most promising systems to enable long-lasting and thermally resilient next-generation energy storage. Ideally, these should utilize low-cost resources with reduced reliance on critical materials. Pursuing cobalt- nickel-free chemistries, like LiFePO4 (LFP), is a strategy. Morphological features LFP essential for improved electrochemical performance highlighted elucidate interfacial challenges when implemented in ASSBs, since adoption inorganic...
Abstract All‐solid‐state sodium ion batteries (AS 3 iBs) are highly sought after for stationary energy storage systems due to their suitable safety and stability over a wide temperature range. Hard carbon (HC), which is low cost, exhibits redox potential, high capacity, integral achieve practical large‐scale sodium‐ion battery. However, the density of battery utilizing this anode material hampered by its initial Coulombic efficiency (ICE). Herein, two strategies, namely i) additional...
Abstract All-solid-state batteries using Si as the anode have shown promising performance without continual solid-electrolyte interface (SEI) growth. However, first cycle irreversible capacity loss yields low initial Coulombic efficiency (ICE) of Si, limiting energy density. To address this, we adopt a prelithiation strategy to increase ICE and conductivity all-solid-state cells. A significant in is observed for Li 1 paired with lithium cobalt oxide (LCO) cathode. Additionally, comparison...
Abstract All‐solid‐state batteries are expected to enable with high energy density the use of lithium metal anodes. Although solid electrolytes believed be mechanically strong enough prevent dendrites from propagating, various reports today still show cell failure due dendrit growth at room temperature. While parameters such as current density, electrolyte porosity, and interfacial properties have been investigated, mechanical role applied stack pressure on shorting behavior poorly...
All solid-state batteries (ASSBs) have the potential to deliver higher energy densities, wider operating temperature range, and improved safety compared with today's liquid-electrolyte-based batteries. However, of various electrolyte (SSE) classes—polymers, sulfides, or oxides—none alone can combined properties ionic conductivity, mechanical, chemical stability needed address scalability commercialization challenges. While promising strategies overcome these include use polymer/oxide sulfide...
Abstract Commercialization of the lithium‐sulfur battery is hampered by bottlenecks like low sulfur loading, high cathode porosity, uncontrollable Li 2 S x deposition and sluggish kinetics activation. Herein, we developed a densely stacked redox‐active hexaazatrinaphthylene (HATN) polymer with surface area 302 m g −1 very bulk density ca. 1.60 cm −3 . Uniquely, HATN has similar redox potential window to S, which facilitates binding its transformation chemistry within bulky host, leading fast...
Solid-state electrolytes (SSEs) are promising candidates to circumvent flammability concerns of liquid electrolytes. However, enhancing energy densities by thinning SSE layers and enabling scalable coating processes remain challenging. While previous studies have addressed thin flexible SSEs, mainly ionic conductivity was considered for performance evaluation, no systematic research on the effects manufacturing conditions quality films performed. Here, both uniformity evaluating under...
One approach to increase the energy density of all-solid-state batteries (ASSBs) is use high-voltage cathode materials. The spinel LiNi0.5Mn1.5O4 (LNMO) one such example, as it offers a high reaction potential (close 5 V). Moreover, Co-free system, which makes an environmentally friendly and low-cost alternative. However, several challenges must be addressed before can properly adopted in ASSB technologies. Herein, we reveal that lithium argyrodite (Li6PS5Cl), sulfide solid-state electrolyte...
All-solid-state batteries have recently gained considerable attention due to their potential improvements in safety, energy density, and cycle-life compared conventional liquid electrolyte batteries. Sodium all-solid-state also offer the eliminate costly materials containing lithium, nickel, cobalt, making them ideal for emerging grid storage applications. However, significant work is required understand persisting limitations long-term cyclability of Na all-solid-state-based In this work,...
Abstract All‐solid‐state batteries are emerging as potential successors in energy storage technologies due to their increased safety, stemming from replacing organic liquid electrolytes conventional Li‐ion with less flammable solid‐state electrolytes. However, all‐solid‐state require precise control over cycling pressure maintain effective interfacial contacts between materials. Traditional uniaxial cell holders, often used battery research, face challenges accommodating electrode volume...