Reed Wittman
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View article: Initial characterization and cycling of two batches of commercial hard-carbon/Na <sub> <i>x</i> </sub> Ni <sub> <i>y</i> </sub> Fe <sub> <i>z</i> </sub> Mn <sub> 1− <i>y</i> − <i>z</i> </sub> O <sub>2</sub> sodium ion 18650 batteries as a potential replacement for lithium-ion batteries
Initial characterization and cycling of two batches of commercial hard-carbon/Na <sub> <i>x</i> </sub> Ni <sub> <i>y</i> </sub> Fe <sub> <i>z</i> </sub> Mn <sub> 1− <i>y</i> − <i>z</i> </sub> O <sub>2</sub> sodium ion 18650 batteries as a potential replacement for lithium-ion batteries Open
This work presents a comparative analysis of two initial release commercial sodium-ion 18650 cells manufactured by Tycorun and Hakadi with identical layered oxide (NaNi 1/3 Fe 1/3 Mn 1/3 O 2 ) cathodes and hard carbon anodes.
View article: Impact of Testing Method on Safety Assessment of Aged Li-Ion Cells: Part II – Aged Cells Without Li Plating
Impact of Testing Method on Safety Assessment of Aged Li-Ion Cells: Part II – Aged Cells Without Li Plating Open
Understanding the safety profile of aged Li-ion batteries is essential for developing effective battery management and hazard mitigation strategies. However, most safety assessments have focused on fresh batteries, with just a few calorime…
View article: Alkaline Zinc Passivation Mechanism is Controlled by Hydroxide Concentration
Alkaline Zinc Passivation Mechanism is Controlled by Hydroxide Concentration Open
We studied Zn passivation and oxide growth in Zincate (Zn(OH) 4 2− ) in 4 and 8 M KOH solutions using an electrochemical quartz crystal microbalance (EQCM), building on our initial work at 1 M KOH where passivation was kinetically controll…
View article: In Situ Liquid Electron Microscope Cells Strongly Attenuate Electrochemical Behavior
In Situ Liquid Electron Microscope Cells Strongly Attenuate Electrochemical Behavior Open
In situ electrochemical Scanning Transmission Electron Microscopy (ec-S/TEM) probes the dynamics of electrochemical processes in real time and at high spatial resolution. This method utilizes microfabricated electrochemical cells, with enc…
View article: Zn and Zn/Fe Air and V-, Fe- and Zn-Flow Batteries
Zn and Zn/Fe Air and V-, Fe- and Zn-Flow Batteries Open
View article: Analysis of Commercial Na-Ion 18650 Cell Performance: Cell-to-Cell Variation and Long-Term Cycling
Analysis of Commercial Na-Ion 18650 Cell Performance: Cell-to-Cell Variation and Long-Term Cycling Open
View article: Long-Term Cycling and Analysis of 18650 Li-ion Cells Beyond 80% Capacity
Long-Term Cycling and Analysis of 18650 Li-ion Cells Beyond 80% Capacity Open
View article: Characterization of Cycle-Aged Commercial NMC and NCA Lithium-ion Cells: I. Temperature-Dependent Degradation
Characterization of Cycle-Aged Commercial NMC and NCA Lithium-ion Cells: I. Temperature-Dependent Degradation Open
Lithium-ion batteries are widely used in applications from consumer electronic devices to stationary energy storage. Appropriate management of batteries is challenging due to limited data on their performance and materials degradation. Pre…
View article: Quantifying Chlorine Gas Evolution from Mixed-Acid Vanadium Redox Flow Batteries: A Case Study on Aqueous Battery Safety
Quantifying Chlorine Gas Evolution from Mixed-Acid Vanadium Redox Flow Batteries: A Case Study on Aqueous Battery Safety Open
View article: Degradation of Li-ion Cells Beyond 80% Initial Capacity
Degradation of Li-ion Cells Beyond 80% Initial Capacity Open
View article: Quantification of Chlorine Gas Generation in Mixed-Acid Vanadium Redox Flow Batteries
Quantification of Chlorine Gas Generation in Mixed-Acid Vanadium Redox Flow Batteries Open
Mixed-acid vanadium redox flow batteries (VRFBs) are an attractive option to increase energy density and temperature stability relative to conventional VRFBs for grid energy storage applications. However, the inclusion of hydrochloric acid…
View article: Quantifying Chlorine Gas Evolution from Mixed-Acid Vanadium Redox Flow Batteries.
Quantifying Chlorine Gas Evolution from Mixed-Acid Vanadium Redox Flow Batteries. Open
View article: Update on systematic cycle aging of NMC and NCA 18650 Li-ion batteries.
Update on systematic cycle aging of NMC and NCA 18650 Li-ion batteries. Open
View article: Quantification of Chlorine Gas Generation in Mixed-Acid Vanadium Redox Flow Batteries
Quantification of Chlorine Gas Generation in Mixed-Acid Vanadium Redox Flow Batteries Open
Mixed-acid vanadium redox flow batteries (VRFBs) utilizing a sulfuric and hydrochloric acid electrolyte have emerged as an attractive option to increase energy density and temperature stability relative to conventional VRFBs for grid energ…
View article: Quantifying Chlorine Gas Evolution from Mixed-Acid Vanadium Redox Flow Batteries.
Quantifying Chlorine Gas Evolution from Mixed-Acid Vanadium Redox Flow Batteries. Open
View article: Long Term Cycling of 18650 Li-ion Cells Beyond 80% Capacity.
Long Term Cycling of 18650 Li-ion Cells Beyond 80% Capacity. Open
View article: A Brief Overview of Flow Battery Construction and Operational Considerations.
A Brief Overview of Flow Battery Construction and Operational Considerations. Open
View article: Systematic Cycle and Calendar Aging of Commercial 18650 LFP Lithium-Ion Cells.
Systematic Cycle and Calendar Aging of Commercial 18650 LFP Lithium-Ion Cells. Open
View article: Path Dependence of Li-Ion Battery Degradation During Cycling to 80% Capacity.
Path Dependence of Li-Ion Battery Degradation During Cycling to 80% Capacity. Open
View article: Advances in Energy Storage Technologies.
Advances in Energy Storage Technologies. Open
View article: Systematic Long-Term Cycling of 18650 Batteries Beyond 80% Capacity.
Systematic Long-Term Cycling of 18650 Batteries Beyond 80% Capacity. Open
View article: Gas Evolution from Mixed-AcidFlow Batteries.
Gas Evolution from Mixed-AcidFlow Batteries. Open
View article: Cycling of Li-ion Batteries Beyond 80% Capacity.
Cycling of Li-ion Batteries Beyond 80% Capacity. Open
View article: Side by Side Comparison of Redox Flow and Li-ion Batteries.
Side by Side Comparison of Redox Flow and Li-ion Batteries. Open
View article: Gas Evolution from Mixed-Acid Vanadium Redox Flow Battery.
Gas Evolution from Mixed-Acid Vanadium Redox Flow Battery. Open
at elevated temperature (> 40°C), providing unique advantages over the conventional pure sulfate system; 1) high stack energy efficiency due to better kinetics and low electrolyte resistance, 2) low viscosity, resulting in reduced pumping …
View article: Comprehensive Electrochemical and Materials Characterization of Commercial Li-ion Battery Degradation.
Comprehensive Electrochemical and Materials Characterization of Commercial Li-ion Battery Degradation. Open
View article: Overview of Aqueous Battery Safety and Reliability Concerns.
Overview of Aqueous Battery Safety and Reliability Concerns. Open
View article: Materials Degradation Trends from Systematic Long-Term Cycling of Commercial Li-Ion Batteries.
Materials Degradation Trends from Systematic Long-Term Cycling of Commercial Li-Ion Batteries. Open
View article: Perspective—On the Need for Reliability and Safety Studies of Grid-Scale Aqueous Batteries
Perspective—On the Need for Reliability and Safety Studies of Grid-Scale Aqueous Batteries Open
Li-ion batteries currently dominate electrochemical energy storage for grid-scale applications, but there are promising aqueous battery technologies on the path to commercial adoption. Though aqueous batteries are considered lower risk, th…
View article: Elucidating mechanisms of oxide growth and surface passivation on zinc thin film electrodes in alkaline solutions using the electrochemical quartz crystal microbalance
Elucidating mechanisms of oxide growth and surface passivation on zinc thin film electrodes in alkaline solutions using the electrochemical quartz crystal microbalance Open