Bairav S. Vishnugopi
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View article: Relevance of Classical Models and Simulation Approaches for Battery Digital Twins
Relevance of Classical Models and Simulation Approaches for Battery Digital Twins Open
Digital twins are virtual replicas of physical systems updated real time and are increasingly vital for complex systems like batteries. Being electrochemical black boxes that degrade with use, Batteries benefit from digital twins for monit…
View article: Perspective on Thermal Stability and Safety of Sodium-Ion Batteries
Perspective on Thermal Stability and Safety of Sodium-Ion Batteries Open
View article: Surface energy-driven electrodeposition stability in sodium metal electrodes
Surface energy-driven electrodeposition stability in sodium metal electrodes Open
Dendrite growth arising from interfacial instability remains a major obstacle to the advancement and commercialization of metal anode-based batteries. Sodium metal batteries (SMBs), a promising alternative to lithium (Li)-based systems due…
View article: Thermal Modulation of Electrodeposition Stability in Sodium Metal Electrodes
Thermal Modulation of Electrodeposition Stability in Sodium Metal Electrodes Open
Sodium metal batteries (SMBs) have gained interest due to the high natural abundance and lower cost of sodium (Na) compared to lithium (Li), making them a promising alternative to conventional Li‐based battery systems. However, a key chall…
View article: Interrogating the Thermo‐Electrochemical Instability and Safety in Lithium Metal Electrodes with Liquid Electrolytes
Interrogating the Thermo‐Electrochemical Instability and Safety in Lithium Metal Electrodes with Liquid Electrolytes Open
Lithium metal anodes (LMAs), with their high specific capacity and low electrochemical potential, are considered the ultimate choice for next‐generation batteries. Significant efforts have been made to enhance the performance of LMAs, yiel…
View article: Relevance of classical models/approaches for Battery Digital Twins
Relevance of classical models/approaches for Battery Digital Twins Open
Digital twins are virtual replicas of physical systems updated in real-time and are becoming vital in modern engineering, especially for complex systems like batteries. Batteries, being electrochemical black boxes that degrade over time, b…
View article: Filament-Induced Failure in Lithium-Reservoir-Free Solid-State Batteries
Filament-Induced Failure in Lithium-Reservoir-Free Solid-State Batteries Open
Lithium-reservoir-free solid-state batteries can fail due to electrical shorting as a result of fracture and lithium metal filament formation. Mechanical stress at the solid electrolyte surface can induce fractures, which promote lithium f…
View article: Chemo‐Mechanics Interplay Dictates Interface Instability and Asymmetry in Plating and Stripping of Sodium Metal Electrodes
Chemo‐Mechanics Interplay Dictates Interface Instability and Asymmetry in Plating and Stripping of Sodium Metal Electrodes Open
The development of practical sodium (Na) metal batteries is hindered by key challenges including dendrite growth, dead metal formation, and unstable solid electrolyte interphase (SEI) growth. A fundamental understanding of the chemo‐mechan…
View article: Interface Morphogenesis with a Deformable Secondary Phase in Solid-State Lithium Batteries
Interface Morphogenesis with a Deformable Secondary Phase in Solid-State Lithium Batteries Open
The complex and uncontrolled morphological evolution of lithium metal at the interface with solid-state electrolytes limits performance of solid-state batteries, leading to inhomogeneous reactions and contact loss. Inspired by biological m…
View article: Control of Two Solid Electrolyte Interphases at the Negative Electrode of an Anode‐Free All Solid‐State Battery based on Argyrodite Electrolyte
Control of Two Solid Electrolyte Interphases at the Negative Electrode of an Anode‐Free All Solid‐State Battery based on Argyrodite Electrolyte Open
Anode‐free all solid‐state batteries (AF‐ASSBs) employ “empty” current collector with three active interfaces that determine electrochemical stability; lithium metal – Solid electrolyte (SE) interphase (SEI‐1), lithium – current collector …
View article: Electro-chemo-mechanics of anode-free solid-state batteries
Electro-chemo-mechanics of anode-free solid-state batteries Open
Anode-free solid-state batteries contain no active material at the negative electrode in the as-manufactured state, yielding high energy densities for use in long-range electric vehicles. The mechanisms governing charge-discharge cycling o…
View article: Evaluating Pressure‐dependent Discharge Behavior of Foil Versus In situ Plated Lithium Metal Anodes in Solid‐State Batteries
Evaluating Pressure‐dependent Discharge Behavior of Foil Versus In situ Plated Lithium Metal Anodes in Solid‐State Batteries Open
Anode‐free manufacturing of solid‐state batteries (SSBs) shows promise to maximize energy density by eliminating excess lithium (Li) and simplifying battery production. However, high reversibility during discharge (stripping of Li) is nece…
View article: Interrogating the Role of Stack Pressure in Transport‐Reaction Interaction in the Solid‐State Battery Cathode
Interrogating the Role of Stack Pressure in Transport‐Reaction Interaction in the Solid‐State Battery Cathode Open
As solid‐state batteries (SSBs) emerge as leading contenders for next‐generation energy storage, chemo‐mechanical challenges and instabilities at solid‐solid interfaces remain a critical bottleneck. Ensuring sufficient interfacial contact …
View article: Benchmarking the reproducibility of all-solid-state battery cell performance
Benchmarking the reproducibility of all-solid-state battery cell performance Open
The interlaboratory comparability and reproducibility of all-solid-state battery cell cycling performance are poorly understood due to the lack of standardized set-ups and assembly parameters. This study quantifies the extent of this varia…
View article: Interdependence of Support Wettability ‐ Electrodeposition Rate‐ Sodium Metal Anode and SEI Microstructure
Interdependence of Support Wettability ‐ Electrodeposition Rate‐ Sodium Metal Anode and SEI Microstructure Open
This study examines how current collector support chemistry (sodiophilic intermetallic Na 2 Te vs. sodiophobic baseline Cu) and electrodeposition rate affect microstructure of sodium metal and its solid electrolyte interphase (SEI). Capaci…
View article: Interdependence of Support Wettability ‐ Electrodeposition Rate‐ Sodium Metal Anode and SEI Microstructure
Interdependence of Support Wettability ‐ Electrodeposition Rate‐ Sodium Metal Anode and SEI Microstructure Open
This study examines how current collector support chemistry (sodiophilic intermetallic Na 2 Te vs. sodiophobic baseline Cu) and electrodeposition rate affect microstructure of sodium metal and its solid electrolyte interphase (SEI). Capaci…
View article: A Multi-scale Framework for Advancing Battery Safety Through Early Calorimetric Analysis of Materials and Components
A Multi-scale Framework for Advancing Battery Safety Through Early Calorimetric Analysis of Materials and Components Open
Batteries are the cornerstone of the global shift toward electrification, powering applications from passenger transportation, like electric vehicles (EVs), to load shifting of renewable energy generation at the grid level. The demand for …
View article: Heterogeneous Solid Electrolyte Interphase Interactions Dictate Interface Instability in Sodium Metal Electrodes
Heterogeneous Solid Electrolyte Interphase Interactions Dictate Interface Instability in Sodium Metal Electrodes Open
Sodium (Na) metal batteries have attracted recent attention due to their low cost and high abundance of Na. However, the advancement of Na metal batteries is impeded due to key challenges such as dendrite growth, solid electrolyte interpha…
View article: Synergistic Evolution of Alloy Nanoparticles and Carbon in Solid-State Lithium Metal Anode Composites at Low Stack Pressure
Synergistic Evolution of Alloy Nanoparticles and Carbon in Solid-State Lithium Metal Anode Composites at Low Stack Pressure Open
Solid-state batteries with Li metal anodes can offer increased energy density compared to Li-ion batteries. However, the performance of pure Li anodes has been limited by morphological instabilities at the interface between Li and the soli…
View article: Operando Investigation on the Role of Densification and Chemo‐Mechanics on Solid‐State Cathodes
Operando Investigation on the Role of Densification and Chemo‐Mechanics on Solid‐State Cathodes Open
All solid‐state batteries are desirable for a range of energy storage applications which require high energy density. Achieving a high energy density in a solid‐state battery requires the operation of an energy dense anode with a composite…
View article: Temperature Impact on Lithium Metal Morphology in Lithium Reservoir-Free Solid-State Batteries
Temperature Impact on Lithium Metal Morphology in Lithium Reservoir-Free Solid-State Batteries Open
Lithium reservoir-free solid-state batteries can offer exceedingly high energy densities for a range of emerging applications related to aviation and electric vehicles. However, reversible operation of reservoir-free cells is plagued by a …
View article: Alumina – Stabilized SEI and CEI in Potassium Metal Batteries
Alumina – Stabilized SEI and CEI in Potassium Metal Batteries Open
Aluminum oxide (Al 2 O 3 ) nanopowder is spin‐coated onto both sides of commercial polypropene separator to create artificial solid‐electrolyte interphase (SEI) and artificial cathode electrolyte interface (CEI) in potassium metal batterie…
View article: Mechanical Milling – Induced Microstructure Changes in Argyrodite LPSCl Solid‐State Electrolyte Critically Affect Electrochemical Stability
Mechanical Milling – Induced Microstructure Changes in Argyrodite LPSCl Solid‐State Electrolyte Critically Affect Electrochemical Stability Open
Microstructure of argyrodite solid‐state electrolyte (SSE) critically affects lithium metal electrodeposition/dissolution. While the stability of unmodified SSE is mediocre, once optimized state‐of‐the‐art electrochemical performance is ac…
View article: Uncertainty quantification and propagation in lithium-ion battery electrodes using bayesian convolutional neural networks
Uncertainty quantification and propagation in lithium-ion battery electrodes using bayesian convolutional neural networks Open
View article: State-of-Charge Implications of Thermal Runaway in Li-ion Cells and Modules
State-of-Charge Implications of Thermal Runaway in Li-ion Cells and Modules Open
The thermal safety of lithium-ion (Li-ion) batteries for electric vehicles continues to remain a major concern. A comprehensive understanding of the thermal runaway (TR) mechanisms in Li-ion cells and modules due to intrinsic factors such …
View article: Electrodeposition Stability Landscape for Solid–Solid Interfaces
Electrodeposition Stability Landscape for Solid–Solid Interfaces Open
As solid‐state batteries (SSBs) with lithium (Li) metal anodes gain increasing traction as promising next‐generation energy storage systems, a fundamental understanding of coupled electro‐chemo‐mechanical interactions is essential to desig…
View article: Thermal Runaway Propagation Analytics and Crosstalk in Lithium‐Ion Battery Modules
Thermal Runaway Propagation Analytics and Crosstalk in Lithium‐Ion Battery Modules Open
The thermal safety of lithium‐ion (Li‐ion) batteries continues to remain a critical concern for widespread vehicle electrification. Under abuse scenarios, thermal runaway (TR) of individual energy‐dense Li‐ion cells can be dominated by var…
View article: Tuned Reactivity at the Lithium Metal–Argyrodite Solid State Electrolyte Interphase
Tuned Reactivity at the Lithium Metal–Argyrodite Solid State Electrolyte Interphase Open
Thin intermetallic Li 2 Te–LiTe 3 bilayer (0.75 µm) derived from 2D tellurene stabilizes the solid electrolyte interphase (SEI) of lithium metal and argyrodite (LPSCl, Li 6 PS 5 Cl) solid‐state electrolyte (SSE). Tellurene is loaded onto a…
View article: Structural and Electrochemical Evolution of Alloy Interfacial Layers in Anode-Free Solid-State Batteries
Structural and Electrochemical Evolution of Alloy Interfacial Layers in Anode-Free Solid-State Batteries Open
“Anode-free” solid-state batteries feature high energy density since there is no anode active material upon assembly. While beneficial effects of interfacial layers at the anode-solid electrolyte interface have previously been demonstrated…
View article: Intermetallics Based on Sodium Chalcogenides Promote Stable Electrodeposition–Electrodissolution of Sodium Metal Anodes (Adv. Energy Mater. 27/2023)
Intermetallics Based on Sodium Chalcogenides Promote Stable Electrodeposition–Electrodissolution of Sodium Metal Anodes (Adv. Energy Mater. 27/2023) Open
Sodium Metal Batteries The art representing article number 2204402 by Yixian Wang, David Mitlin, and co-workers depicts two turtles on a sodium fueled road trip. Neither turtles or sodium batteries are the fastest or the most powerful, but…