Partha Mukherjee

New Article Alert: “High Voltage Electrolyte Design Mediated by Advanced Solvation Chemistry Toward High Energy Density and Fast Charging Lithium-Ion Batteries” @Advanced Energy Materials. https://lnkd.in/gfSMjiwC Electrolyte is critical for transporting lithium-ion (Li+) in lithium-ion batteries (LIBs). However, there is no universally applicable principle for designing an optimal electrolyte. In most cases, the design process relies on empirical experiences and is often treated as highly confidential proprietary information. In the article, a solvation structure-related model for the quantitative design of electrolytes is introduced, focusing on the principles of coordination chemistry. As a paradigmatic example, a high-voltage electrolyte (i.e., 4.5 V vs anode) aimed at achieving a high energy density and fast charging LIB, which is specifically composed of an emerging, well-constructed hybrid hard carbon-silicon/carbon-based anode, and lithium cobalt oxide cathode, is developed. Not only the functions of each electrolyte component at the molecular scale within the Li+ solvation structure are analyzed but also an interfacial model is introduced to elucidate their relationship with the battery performance. This study represents a pioneering effort in developing a methodology to guide electrolyte design, in which the mutual effects of the Li+ de-solvation process and solid electrolyte interface (SEI) on the electrode surface are explored concurrently to understand the root cause of superior performance. The innovative approach presented in the paper, establishes a new paradigm in electrolyte design, providing valuable insights at the molecular level. Jawaharlal Nehru University (JNU) #jnu #sps #spsjnu #materialscience #materials #materialtesting #physics #liionbattery #battery #batteries #batterytechnology #highvoltagebattery #highperformance #solvationstructure #fullbattery #highvoltageelectrolyte #liion #rechargeable #highenergydensity #fastcharging #SEI #CEI

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📰 Hot off the press! Today CSS released a technical report estimating future #hydrogen demand in Michigan's #hardtoabate #industrial 🏭 and #transportation 🚚 sectors. Examining #petroleumrefining, #chemicals, #pulpandpaper, #steelmaking, #cement, #glass, #semiconductor manufacturing, and medium- and heavy-duty vehicles (#MHDV), the team of researchers estimated potential near- and long-term growth in hydrogen demand, and the associated impact on #GHGemissions. Highlights include: ⭐ Current (2022) demand was estimated at approximately 39,100 metric tons of hydrogen per year ⭐ In the near term (2030), hydrogen demand could grow by as much as 60% driven by new opportunities in steelmaking and expansion in MHDV use ⭐ In the long-term (2050), hydrogen demand could grow between 420% to 2,700%, depending on costs, infrastructure, and scaling of production ⭐ If produced through polymer electrolyte membrane (PEM) electrolysis with renewable electricity, these demand growth scenarios could reduce GHG emissions by 20% or more Read the press release ➡ https://lnkd.in/ezWP3nW5 And the technical report ➡ https://lnkd.in/ey797RdX Authors Brooke Alsterlind, Patrick Killian, Stephen Lipshaw, Sara Murphy, Shagun Parekh, Yaqi(Vien) Zhang, and Gregory Keoleian In partnership with MI Hydrogen (https://lnkd.in/gw-gzcRT), an initiative of University of Michigan Office of the Vice President for Research, and University of Michigan- School for Environment and Sustainability

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Slightly slower posting rate last week as I spent some time pulling together an Excel sheet that allows you to estimate the volume of electrolyte required for a given cell chemistry: https://lnkd.in/eRYtPEQq The page gives an overview of the calculation and links to the reference documents, however, you can download the excel workbook: https://lnkd.in/d5Gydr9J As a one off download it is just $15 or $25 for a yearly download pass, if you want to use it in a company we ask that you pay for the $250 corporate download pass. #batteries #electrochemistry #batterymanufacturing

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For solid-state battery design, how many solid electrolytes must be contained in the composite electrode? (maybe mostly 20-30wt%?) Then, how much should the composite electrode be densified to ensure interfacial contact? (I mean the electrode density in g/cc, not the fabrication pressure in MPa or bar) What about the minimal electrode loading to achieve our target specific energy (energy density) at the Ah-scale cell level? These electrode parameters are crucial for SSB design but are usually empirically set without scientific reason. Furthermore, there are many hyped papers from the electrode and cell design point of view (excess solid electrolyte, low loading, low capacity, etc). Here, published in #NatureCommunications today, we propose our universal #SSB #electrode #design #principle, guided by three quantitative design thresholds: 1. #balancethreshold, 2. #percolationthreshold, and 3. #loadingthreshold. Based on our cell architecture and the processing techniques developed using solid polymer electrolytes as a model system, this design logic was demonstrated in Ah-scale multi-stacked pouch cells, which hit a third-party certified 310 Wh/kg specific energy (achieved 94wt% AM content in the electrode). Additionally, we provide our versatile SSB cell design toolkit based on our advanced design parameter defined by those thresholds, #SolidXCell. You can freely access and use it from today. Our colleagues from Ulsan Advanced Energy Technology R&D Center at Korea Institute of Energy Research (#KIER) and Ulsan National Institute of Science and Technology (#UNIST) made this outcome possible. I am proud to be part of them and grateful for the efforts of our team. We are struggling but stepping forward to the real implementation of SSBs by building #ABEF (#AdvancedBatteryEngineeringFoundry, check my link in the reply). Stay tuned to our upcoming news—special thanks to my running mate, Sung-Kyun Jung.

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Our latest article in ACS Applied Energy Materials:

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🔬 Stanford University researchers have made a breakthrough in developing liquid organic hydrogen carriers (LOHCs) for renewable energy storage. 💡 Key Insights from Research: 🌱 Led by Robert Waymouth, a professor of chemistry at Stanford, the team has discovered a novel, selective catalytic system for storing electrical energy in a liquid fuel without generating gaseous hydrogen. 🌱 The system uses isopropanol, a high-density liquid form of hydrogen, which can be stored or transported through existing infrastructure. 🌱 The team discovered that cobaltocene, a chemical compound of cobalt, is an unusually efficient co-catalyst in the reaction, delivering protons and electrons directly to the iridium catalyst. #RenewableEnergy #EnergyStorage #LiquidBattery #LOHC #HydrogenFuel #SustainableEnergy #StanfordUniversity #ScienceBreakthrough #CleanEnergy #EnvironmentalSustainability

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Songi Han and team recently published a study in ACS Publications Journal of Physical Chemistry Letters that demonstrated using pump-probe ELDOR with selective saturation is a great way to study AX-type coupled electron spins, which are key for #DNP and #quantum sensing. #WomeninSTEM #physicalchemistry #polarization Read full paper ➡ https://lnkd.in/gDbZpCGM

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Green hydrogen projects, especially those integrating electrolyzers into microgrids, involve several technical factors. Here are some key considerations: 1. Electrolyzer technology and specifications - There are mainly three types - alkaline electrolyzers, proton exchange membrane electrolyzers, and solid oxide electrolyzers. Each type has different efficiency, cost, and operational characteristics. - The efficiency of hydrogen production, typically measured in kWh per kilogram of hydrogen produced, is crucial. Higher efficiency means less energy consumption for the same amount of hydrogen. - The capacity of the electrolyzer to produce hydrogen per hour (Nm³/h or kg/h) must match the microgrid's production and storage capacity. 2. Integration with Renewable Energy Sources - Energy Source Compatibility: The electrolyzer should be compatible with the type of renewable energy used in the microgrid. - Intermittency and Stability: Renewable energy sources are intermittent. The electrolyzer and the microgrid need systems to manage energy supply fluctuations, such as energy storage systems to stabilize the input power. 3. Power Electronics and Control Systems - Power Converters: Converters are needed to match the electricity supply from the renewable sources to the electrolyzer’s requirements, typically involving AC to DC conversion. - Control Systems: Advanced control algorithms are essential for optimizing the operation of the electrolyzer, managing load (power flow) variations, and ensuring efficient operation within the microgrid. 4. Water Supply and Quality - Water Source: Electrolyzers require high-purity water. The source and quality of water, including necessary purification processes, are vital for consistent hydrogen production. - Water Management: Efficient water use and management, including treatment and recycling systems, are crucial for the sustainability of the project. 5. Hydrogen Storage and Distribution - Storage Systems: Proper storage solutions, such as high-pressure tanks or cryogenic storage, need to be integrated within the microgrid. Safety and efficiency in storage are critical. - Distribution infrastructure: The infrastructure for distributing hydrogen, whether for local use within the microgrid or for external applications, must be well-planned and safe. 6. Safety and regulatory compliance - Safety protocols: given hydrogen's flammability, robust safety measures must be in place to handle production, storage, and distribution. - Regulations and standards: compliance with local, national, and international standards and regulations for hydrogen production and handling is mandatory. 7. Economic and environmental factors - Cost of renewable energy: the overall economics of the project are influenced by the cost and availability of renewable energy. - Environmental impact: assessing the environmental benefits and impacts, including the carbon footprint and water use efficiency, is essential for sustainability.

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The International Hydropower Association announced the release of “Enabling New Pumped Storage Hydropower: A guidance note for decision makers to de-risk investments in pumped storage hydropower.” #renewables #power #energy #wind #offshore #onshore #solar #hydropower #floating #nuclear #geothermal #efficiency #transition #susteinability #circular #economy #esg #clean #decarbonization #electrification #climate #hydrogen #mobility #greensteel #ammonia #transportation #storage #fuelcell #smartgrid #der #powersystem #generation #transmission #distribution #electricity #machines #drives #sensors #iot #education #engineering #innovation #entrepreneurship #creativity #technology #digitalization #cybersecurtity #metering

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*****New Publication Alert ***** New paper in American Chemical Society's Nano Letters journal. This work is an attempt to realize lithium metal batteries utilizing a lithium metal anode to achieve greater energy density. However, improving low-temperature performance and fast-charging features remains challenging. In this study, we introduce an electrolyte solvation chemistry strategy to regulate the properties of ethylene carbonate (EC)-based electrolytes through intermolecular interactions. Specifically, we use weakly solvated fluoroethylene carbonate (FEC) to replace EC and incorporate the low-melting-point solvent 1,2-difluorobenzene (2FB) as a diluent. We identified that the intermolecular interaction between 2FB and the solvent can facilitate Li+ desolvation and effectively lower the freezing point of the electrolyte. The resulting electrolyte enables the LiNi0.8Co0.1Mn0.1O2||Li cell to operate at −30 °C for more than 100 cycles while delivering a high capacity of 154 mAh g−1 at 5.0C. Furthermore, a solvation structure and interfacial model were presented to analyze the behavior of the formulated electrolyte composition, establishing a relationship with cell performance and providing insights for electrolyte design under extreme conditions. https://lnkd.in/gSrCzWYh Stay tuned for more exciting news from the School of Physical Sciences at Jawaharlal Nehru University in New Delhi, India. Jawaharlal Nehru University (JNU) #JNU, #SPS #SPSJNU #LiIonBattery #LowTemperatureOperation #Cathode #Anode #LithiumMetalAnode #Electrolyte #LowTemperatureElectrolyte #LNMO #Li #InterMoliecularInteraction #LiMetalBatteries #EnergyStorage #Batteries #ElectrolyteSolvationChemistry #InterfacialModel

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*****New Publication Alert ***** New paper in American Chemical Society’s #ACSEnergyLetters journal. “Electrolyte Intermolecular Interaction Mediated Nonflammable Potassium-Ion Sulfur Batteries” The design of electrolytes that are compatible with graphite electrodes and incorporate flame-retardant properties in potassium-ion batteries (PIBs) can not only facilitate their commercialization but also improve the safety reliability. However, it remains challenging, particularly in propylene carbonate (PC)-based electrolytes. Herein, we achieved a highly reversible K+ (de)intercalation with graphite in PC-based electrolytes by introducing the fluoroethers. We identified the strength of interactions formed between fluoroethers (e.g., 1,1,2,2-tetrafluoroethy-2,2,3,3-tetrafluoropropyl ether (HFE), 1,1,2,2-tetrafluoroethyl 2,2,2-trifluoroethyl ether (TFTFE)) and PC by heteronuclear overhauser effect spectroscopy. We find that the interaction between HFE and PC is stronger, which can significantly weaken the K+-PC interaction, contributing to a reversible K+(de)intercalation and also endowing electrolyte nonflammable features. The kinetic and thermodynamic properties of K+-solvent-anion complexes in the proposed interfacial model can elucidate the electrolyte and electrode stability, enabling the as-designed potassium-ion sulfur batteries to show high performance. This discovery offers a fresh perspective for designing and advancing electrolytes in PIBs and beyond. https://lnkd.in/gEiQyUgN Stay tuned for more exciting news from the School of Physical Sciences at Jawaharlal Nehru University, New Delhi, India. #JNU, #SPS #SPSJNU #KIonBattery #Cathode #Anode #PotasiumSulfur #Electrolyte #nonflamableelectrolyte #graphiteanode #SPANCathode #ElectrolyteAdditives #ElectrolyteMicrostructures #KSBatteries #InterMolecularInteraction #PotasiumSulfurBatteries #EnergyStorage #Batteries #ElectrolyteSolvationChemistry #InterfacialModel #ACS #AmericanChemicalSociety #ACSEnergyLetters Jawaharlal Nehru University (JNU) Dr. Prashant Tripathi Avinash Rundla Divya Rani Raghuvanshi Shivani Singh Rajkamal Arya Manjusha Shelke

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Comprehensive review of 130 studies shows that alkaline and PEM electrolysis performance will be negatively affected by variable power supply from wind and solar. #renewables #power #energy #wind #offshore #onshore #solar #hydropower #floating #nuclear #geothermal #efficiency #transition #susteinability #circular #economy #esg #clean #decarbonization #electrification #climate #hydrogen #mobility #greensteel #ammonia #transportation #storage #fuelcell #smartgrid #der #powersystem #generation #transmission #distribution #electricity #machines #drives #sensors #iot #education #engineering #innovation #entrepreneurship #creativity #technology #digitalization #cybersecurtity #metering

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Li-ion intercalation into the cathode material is a basic and yet still poorly understood process. What drives Li-ion inside if the cathode material remains electrically neutral all the time? How do electrons in the current collector, which is "miles away" from the cathode-electrolyte interface, get "informed" that the Li-ion is about to intercalate? Or, likewise, how does Li-ion "know" that the cathode material is ready for it to intercalate? Our new paper sheds some light on this mysterious process. https://lnkd.in/efeDVxJC

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The interactive resource draws lessons from 15 U.S. virtual power plant programs with nearly 4 million customers and 1.5 GW of enrolled capacity. #renewables #power #energy #wind #offshore #onshore #solar #hydropower #floating #nuclear #geothermal #efficiency #transition #susteinability #circular #economy #esg #clean #decarbonization #electrification #climate #hydrogen #mobility #greensteel #ammonia #transportation #storage #fuelcell #smartgrid #der #powersystem #generation #transmission #distribution #electricity #machines #drives #sensors #iot #education #engineering #innovation #entrepreneurship #creativity #technology #digitalization #cybersecurtity #metering

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In a fascinating Symmetry magazine article, our Director Cameron Geddes discusses the significance of key recommendations from the recent P5 Report on the evolution of #ParticleAccelerator science and applications. Berkeley Lab - U.S. Department of Energy Office of Science - U.S. Department of Energy (DOE) https://lnkd.in/ga-CyEFT

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In a fascinating Symmetry magazine article, our Director Cameron Geddes discusses the significance of key recommendations from the recent P5 Report on the evolution of #ParticleAccelerator science and applications. Berkeley Lab - U.S. Department of Energy Office of Science - U.S. Department of Energy (DOE) https://lnkd.in/ga-CyEFT

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We are guest editing a new special issue in Separation and Purification Technology Journal on the topic of #battery #recycling, see more details below.

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