David C. Bock
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View article: Two-Dimensional Siloxene Nanosheets: Understanding the Effect of Heat Treatment on the Surface Chemistry and Resulting Electrochemistry in Lithium-Based Batteries
Two-Dimensional Siloxene Nanosheets: Understanding the Effect of Heat Treatment on the Surface Chemistry and Resulting Electrochemistry in Lithium-Based Batteries Open
Two-dimensional (2D) silicon materials are conceptually appealing as negative electrode materials in lithium-ion batteries due to their layered morphology, which can accommodate (de)lithiation-induced volume changes. Herein, heat treatment…
View article: The outcomes of the obesity paradox in pulmonary embolism: a study of the national inpatient sample database from 2016 to 2020
The outcomes of the obesity paradox in pulmonary embolism: a study of the national inpatient sample database from 2016 to 2020 Open
View article: Structural, Electrochemical, and (De)lithiation Mechanism Investigation of Cation-Disordered Rocksalt and Spinel Hybrid Nanomaterials in Lithium-Ion Batteries
Structural, Electrochemical, and (De)lithiation Mechanism Investigation of Cation-Disordered Rocksalt and Spinel Hybrid Nanomaterials in Lithium-Ion Batteries Open
Significant demand for lithium-ion batteries necessitates alternatives to Co- and Ni-based cathode materials. Cation-disordered materials using earth-abundant elements are being explored as promising candidates. In this paper, we demonstra…
View article: Impact of Synthetic Parameters on Structure and Electrochemistry of High-Entropy Layered Oxide LiNi<sub>0.2</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>Al<sub>0.2</sub>Fe<sub>0.2</sub>O<sub>2</sub>
Impact of Synthetic Parameters on Structure and Electrochemistry of High-Entropy Layered Oxide LiNi<sub>0.2</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>Al<sub>0.2</sub>Fe<sub>0.2</sub>O<sub>2</sub> Open
Here, this study explored a high-entropy layered oxide (HELO), LiNi0.2Co0.2Mn0.2Al0.2Fe0.2O2, prepared by coprecipitation followed by heat treatment. Coprecipitation yielded…
View article: Elucidating the Discharge Behavior of Aqueous Zinc Sulfur Batteries in the Presence of Molybdenum(IV) Chalcogenide Catalyst: The Criticality of Interfacial Electrochemistry
Elucidating the Discharge Behavior of Aqueous Zinc Sulfur Batteries in the Presence of Molybdenum(IV) Chalcogenide Catalyst: The Criticality of Interfacial Electrochemistry Open
The aqueous zinc-sulfur battery holds promise for significant capacity and energy density with low cost and safe operation based on environmentally benign materials. However, it suffers from the sluggish kinetics of the conversion reaction…
View article: Capacity Fade of Graphite/NMC811: Influence of Particle Morphology, Electrolyte, and Charge Voltage
Capacity Fade of Graphite/NMC811: Influence of Particle Morphology, Electrolyte, and Charge Voltage Open
LiNi 0.8 Mn 0.1 Co 0.1 O 2 (NMC811) is an important Li-ion battery cathode material; however, there is a tradeoff between delivered capacity and capacity retention. As the charge potential increases the capacity rises but at the expense of…
View article: Manganese-rich high entropy oxides for lithium-ion batteries:materials design approaches to address voltage fade
Manganese-rich high entropy oxides for lithium-ion batteries:materials design approaches to address voltage fade Open
Mn rich high entropy oxides were designed to improve voltage fade in Li-ion batteries. A mild co-precipitation method yielded a layered structure (HEO-L) with stacking faults and a spinel-layered hybrid structure (HEO-H) with cation mixing.
View article: Lithium-ion battery functionality over broad operating conditions <i>via</i> local high concentration fluorinated ester electrolytes
Lithium-ion battery functionality over broad operating conditions <i>via</i> local high concentration fluorinated ester electrolytes Open
Delivered capacities of non-flammable LHCE vs. flammable LiPF 6 EC:DMC electrolyte at low temperature, high voltage charge, and fast charge.
View article: Origin of Phase Separation in Ni-Rich Layered Oxide Cathode Materials During Electrochemical Cycling
Origin of Phase Separation in Ni-Rich Layered Oxide Cathode Materials During Electrochemical Cycling Open
In intercalation materials, the kinetics and uniformity of mass transport across the nanocrystalline domains dictate the structural reversibility and transport capability at the macroscopic level. (De)intercalation-induced interlayer disin…
View article: Understanding the reversible electrodeposition of aluminum in low-cost room-temperature molten salts
Understanding the reversible electrodeposition of aluminum in low-cost room-temperature molten salts Open
Aluminum is the most earth-abundant metal, trivalent, and inert in ambient air; it also has a density approximately five times that of lithium at room temperature, making it attractive for cost-effective, long-duration storage in batteries…
View article: Two-Dimensional Siloxene Nanosheets: Impact of Morphology and Purity on Electrochemistry
Two-Dimensional Siloxene Nanosheets: Impact of Morphology and Purity on Electrochemistry Open
Two-dimensional (2D) siloxene (Si6O3H6) has shown promise as a negative electrode material for Li-ion batteries due to its high gravimetric capacity and superior mechanical properties under (de)lithiation c…
View article: Degradation in Ni-Rich LiNi<sub>1–<i>x</i>–<i>y</i></sub>Mn<sub><i>x</i></sub>Co<sub><i>y</i></sub>O<sub>2</sub>/Graphite Batteries: Impact of Charge Voltage and Ni Content
Degradation in Ni-Rich LiNi<sub>1–<i>x</i>–<i>y</i></sub>Mn<sub><i>x</i></sub>Co<sub><i>y</i></sub>O<sub>2</sub>/Graphite Batteries: Impact of Charge Voltage and Ni Content Open
Ni-rich LiNi1–x–yMnxCoyO2 (NMC) materials are attractive as cathodes for Li-ion batteries due to their high energy density and low Co content. However, these materials may display poor ele…
View article: Electrochemical Characterization of Degradation Modes of High-Voltage Li<sub><i>x</i></sub>Ni<sub>0.33</sub>Mn<sub>0.33</sub>Co<sub>0.33</sub>O<sub>2</sub> Electrodes
Electrochemical Characterization of Degradation Modes of High-Voltage Li<sub><i>x</i></sub>Ni<sub>0.33</sub>Mn<sub>0.33</sub>Co<sub>0.33</sub>O<sub>2</sub> Electrodes Open
While deeply charged high-voltage cathodes can improve battery energy density, understanding and preventing any accelerated cell degradation is crucial to practical success. Here, to analyze the degradation of LiNixMny
View article: <i>Operando</i>investigation of aqueous zinc manganese oxide batteries: multi-stage reaction mechanism revealed
<i>Operando</i>investigation of aqueous zinc manganese oxide batteries: multi-stage reaction mechanism revealed Open
A multi-stage Mn dissolution–conversion charge storage mechanism in aqueous Zn/α-MnO 2 batteries was revealed via operando synchrotron X-ray absorption spectroscopy (XAS) and X-ray diffraction (XRD) as well as ex situ Raman spectroscopy.
View article: Simultaneous Elucidation of Solid and Solution Manganese Environments via Multiphase <i>Operando</i> Extended X-ray Absorption Fine Structure Spectroscopy in Aqueous Zn/MnO<sub>2</sub> Batteries
Simultaneous Elucidation of Solid and Solution Manganese Environments via Multiphase <i>Operando</i> Extended X-ray Absorption Fine Structure Spectroscopy in Aqueous Zn/MnO<sub>2</sub> Batteries Open
Aqueous Zn/MnO2 batteries (AZMOB) with mildly acidic electrolytes hold promise as potential green grid-level energy storage solutions for clean power generation. Mechanistic understanding is critical to advance capacity retentio…
View article: Design principles for heterointerfacial alloying kinetics at metallic anodes in rechargeable batteries
Design principles for heterointerfacial alloying kinetics at metallic anodes in rechargeable batteries Open
How surface chemistry influences reactions occurring thereupon has been a long-standing question of broad scientific and technological interest. Here, we consider the relation between the surface chemistry at interfaces and the reversibili…
View article: Understanding The Reversible Electrodeposition of Al in Low-Cost Room Temperature Molten Salts
Understanding The Reversible Electrodeposition of Al in Low-Cost Room Temperature Molten Salts Open
Aluminum is the most earth-abundant metal, is trivalent, is inert in ambient humid air, and has a density approximately four-times that of lithium at room temperature. These attributes make it an attractive material for cost-effective, lon…
View article: Batteries in Service of Human Health
Batteries in Service of Human Health Open
Advances in treatment and diagnosis of human health demand advances in energy storage providing small, adaptable, predictable, and reliable systems. This article summarizes key milestones in the adoption of batteries used for implantable m…
View article: An independent practice validation of the Prostate Imaging Reporting and Data System version 2 scoring system and the introduction of PDP (prostate-specific antigen density × PI-RADSv2) score to assist with further risk assessment
An independent practice validation of the Prostate Imaging Reporting and Data System version 2 scoring system and the introduction of PDP (prostate-specific antigen density × PI-RADSv2) score to assist with further risk assessment Open
Objectives To provide concise information to clinicians on how to better interpret multiparametric magnetic resonance imaging for prostate cancer risk stratification. Materials and methods We analyzed 2 separate cohorts. For patients recei…
View article: Progress Towards Extended Cycle Life Si-based Anodes: Investigation of Fluorinated Local High Concentration Electrolytes
Progress Towards Extended Cycle Life Si-based Anodes: Investigation of Fluorinated Local High Concentration Electrolytes Open
Silicon (Si) anodes are promising candidates for Li-ion batteries due to their high specific capacity and low operating potential. Implementation has been challenged by the significant Si volume changes during (de)lithiation and associated…
View article: Batteries (2021 Annual Progress Report)
Batteries (2021 Annual Progress Report) Open
This document summarizes the progress of VTO battery R&D projects supported during the fiscal year 2021 (FY 2021). In FY 2021, the DOE VTO battery R&D funding was approximately $115 million. Its R&D focus was on the development of high-ene…
View article: X-Ray Induced Chemical Reaction Revealed by In Situ X-Ray Diffraction and Scanning X-Ray Microscopy in 15 nm Resolution
X-Ray Induced Chemical Reaction Revealed by In Situ X-Ray Diffraction and Scanning X-Ray Microscopy in 15 nm Resolution Open
The detection sensitivity of synchrotron-based X-ray techniques has been largely improved due to the ever-increasing source brightness, which has significantly advanced ex situ and in situ research for energy materials such as lithium-ion …
View article: Enabling Extreme Fast Charging through Control of Li Deposition Overpotential on Graphite Electrodes
Enabling Extreme Fast Charging through Control of Li Deposition Overpotential on Graphite Electrodes Open
Currently produced electric vehicles (EVs) rely on the use of lithium ion battery technology due to its high energy and power density. However, a major barrier facing the adoption of electric vehicles is that currently utilized Li-ion batt…
View article: The Dopamine Assisted Synthesis of MoO3/Carbon Electrodes With Enhanced Capacitance in Aqueous Electrolyte
The Dopamine Assisted Synthesis of MoO3/Carbon Electrodes With Enhanced Capacitance in Aqueous Electrolyte Open
A capacitance increase phenomenon is observed for MoO 3 electrodes synthesized via a sol-gel process in the presence of dopamine hydrochloride (Dopa HCl) as compared to α-MoO 3 electrodes in 5M ZnCl 2 aqueous electrolyte. The synthesis app…
View article: Interfacial Reactivity of Silicon Electrodes: Impact of Electrolyte Solvent and Presence of Conductive Carbon
Interfacial Reactivity of Silicon Electrodes: Impact of Electrolyte Solvent and Presence of Conductive Carbon Open
Silicon (Si) is a promising high-capacity material for lithium-ion batteries; however, its limited reversibility hinders commercial adoption. Approaches such as particle and crystallite size reduction, introduction of conductive carbon, an…
View article: Low‐Oxidized Siloxene Nanosheets with High Capacity, Capacity Retention, and Rate Capability in Lithium‐Based Batteries
Low‐Oxidized Siloxene Nanosheets with High Capacity, Capacity Retention, and Rate Capability in Lithium‐Based Batteries Open
The mechanical degradation experienced by Si electrodes during Li (de)alloying reactions can potentially be mitigated by using Si‐based materials with layered 2D geometries. Such materials are expected to exhibit favorable mechanical prope…
View article: Thick Electrode Design for Facile Electron and Ion Transport: Architectures, Advanced Characterization, and Modeling
Thick Electrode Design for Facile Electron and Ion Transport: Architectures, Advanced Characterization, and Modeling Open
The demand for lithium ion batteries continues to expand for powering applications such as portable electronics, grid-scale energy storage, and electric vehicles. As the application requirements advance, the innovation of lithium ion batte…
View article: Hybrid MoS<sub>2+<i>x</i></sub> Nanosheet/Nanocarbon Heterostructures for Lithium-Ion Batteries
Hybrid MoS<sub>2+<i>x</i></sub> Nanosheet/Nanocarbon Heterostructures for Lithium-Ion Batteries Open
Modulation of electron/ion transport in electrodes through the appropriate mesoscale electrode structural design is essential to achieving effective utilization of nanoscale electroactive materials. Herein, nanosheet MoS2+x/carbon [one-dim…
View article: The Sabatier principle for Battery Anodes: Chemical Kinetics and Reversible Electrodeposition at Heterointerfaces
The Sabatier principle for Battery Anodes: Chemical Kinetics and Reversible Electrodeposition at Heterointerfaces Open
How surface chemistry influences reactions occurring thereupon has been a long-standing question of broad scientific and technological interest for centuries. Recently, it has re-emerged as a critical question in a subdiscipline of chemist…
View article: Hierarchically structured MoO2/dopamine-derived carbon spheres as intercalation electrodes for lithium-ion batteries
Hierarchically structured MoO2/dopamine-derived carbon spheres as intercalation electrodes for lithium-ion batteries Open