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View article: Performance of Low-Cost Energy Dense Mixed Material MnO2-Cu2O Cathodes for Commercially Scalable Aqueous Zinc Batteries
Performance of Low-Cost Energy Dense Mixed Material MnO2-Cu2O Cathodes for Commercially Scalable Aqueous Zinc Batteries Open
Zinc (Zn)-based batteries have attracted significant interest for applications ranging from electric bikes to grid storage because of its advantageous properties like high abundance, non-toxicity and low-cost. Zn offers a high theoretical …
View article: Secondary zinc-manganese dioxide batteries for high power applications
Secondary zinc-manganese dioxide batteries for high power applications Open
In an embodiment, a secondary Zn—MnO2 battery comprises a battery housing, a MnO2 cathode, a Zn anode, and an electrolyte solution. The MnO2 cathode, the Zn anode, and the electrolyte solution are disposed within the battery housing, and t…
View article: The Dominant Effect of Electrolyte Concentration on Rechargeability of <i>γ</i>-MnO<sub>2</sub> Cathodes in Alkaline Batteries
The Dominant Effect of Electrolyte Concentration on Rechargeability of <i>γ</i>-MnO<sub>2</sub> Cathodes in Alkaline Batteries Open
Achieving high cycle life rechargeable γ -MnO 2 cathodes in alkaline batteries face many challenges. Chief among these is the inability of the γ -MnO 2 polymorph to retain its structural integrity when cycled to high utilization of its the…
View article: Use of Hydrogel Electrolyte in Zn-MnO2 Rechargeable Batteries: Characterization of Safety, Performance, and Cu2+ Ion Diffusion
Use of Hydrogel Electrolyte in Zn-MnO2 Rechargeable Batteries: Characterization of Safety, Performance, and Cu2+ Ion Diffusion Open
Achieving commercially acceptable Zn-MnO2 rechargeable batteries depends on the reversibility of active zinc and manganese materials, and avoiding side reactions during the second electron reaction of MnO2. Typically, liquid electrolytes s…
View article: Performance and failure mechanisms of alkaline zinc anodes with addition of calcium zincate (Ca[Zn(OH)<sub>3</sub>]<sub>2</sub>·2H<sub>2</sub>O) under industrially relevant conditions
Performance and failure mechanisms of alkaline zinc anodes with addition of calcium zincate (Ca[Zn(OH)<sub>3</sub>]<sub>2</sub>·2H<sub>2</sub>O) under industrially relevant conditions Open
Various zinc anodes with increasing calcium zincate (0%, 30%, 70%, 100%) were cycled at 50% theoretical Zn utilization to investigate cycle life and estimated cost. Failure mechanisms of majority 70% Zn/30% CaZn anodes are compared with pu…
View article: Cycling protocol for alkaline batteries
Cycling protocol for alkaline batteries Open
A method of operating a battery comprises discharging a cathode comprising manganese dioxide to within a 2nd electron capacity of the manganese dioxide at a C-rate of equal to or slower than C/10, recharging the battery, and cycling the ba…
View article: Process for making manganese dioxide and its polymorphs reversible
Process for making manganese dioxide and its polymorphs reversible Open
A method of forming a layered manganese dioxide for use in a cathode of a battery comprises disposing a cathode into a housing of an electrochemical cell, disposing an anode into the housing, disposing a polymeric separator between the ano…
View article: Stabilized birnessite cathode for high power and high energy density applications
Stabilized birnessite cathode for high power and high energy density applications Open
A battery comprises a housing, an electrolyte disposed in the housing, an anode disposed in the housing, a stabilized cathode disposed in the housing and comprising a cathode material. The cathode material comprises a composition selected …
View article: Mixed material cathode for secondary alkaline batteries
Mixed material cathode for secondary alkaline batteries Open
A secondary alkaline battery using manganese dioxide is described. The battery includes a mixed cathode material with birnessite-phase manganese dioxide or electrolytic manganese dioxide (EMD), a bismuth compound and a copper compound sele…
View article: Alkaline battery operational methodology
Alkaline battery operational methodology Open
Methods of using specific operational charge and discharge parameters to extend the life of alkaline batteries are disclosed. The methods can be used with any commercial primary or secondary alkaline battery, as well as with newer alkaline…
View article: Electrode designs for high energy density, efficiency, and capacity in rechargeable alkaline batteries
Electrode designs for high energy density, efficiency, and capacity in rechargeable alkaline batteries Open
A secondary alkaline battery includes an anode, a cathode, and an electrolyte. The cathode includes a current collector, a cathode mixture in electrical contact with the current collector. The cathode mixture comprises: manganese oxide, a …
View article: Additive for increasing lifespan of rechargeable zinc-anode batteries
Additive for increasing lifespan of rechargeable zinc-anode batteries Open
A rechargeable battery can include a cathode, an anode current collector, an anode comprising zinc, and an electrolyte in ionic communication with both the cathode and the anode current collector. The electrolyte can include an organic amm…
View article: Hydroxyl Conducting Hydrogels Enable Low-Maintenance Commercially Sized Rechargeable Zn–MnO2 Batteries for Use in Solar Microgrids
Hydroxyl Conducting Hydrogels Enable Low-Maintenance Commercially Sized Rechargeable Zn–MnO2 Batteries for Use in Solar Microgrids Open
Zinc (Zn)–manganese dioxide (MnO2) rechargeable batteries have attracted research interest because of high specific theoretical capacity as well as being environmentally friendly, intrinsically safe and low-cost. Liquid electrolytes, such …
View article: Correction to Material Failure Mechanisms of Alkaline Zn Rechargeable Conversion Electrodes
Correction to Material Failure Mechanisms of Alkaline Zn Rechargeable Conversion Electrodes Open
ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionNEXTORIGINAL ARTICLEThis notice is a correctionCorrection to Material Failure Mechanisms of Alkaline Zn Rechargeable Conversion ElectrodesMichael J. D'AmbroseMichael J. D'AmbroseMore by M…
View article: Material Failure Mechanisms of Alkaline Zn Rechargeable Conversion Electrodes
Material Failure Mechanisms of Alkaline Zn Rechargeable Conversion Electrodes Open
Zinc (Zn) alkaline electrodes hold great importance and promise in the battery technology community, yet their behavior in real-world applications is still poorly understood. Here, we report a study of failure mechanisms and material evolu…
View article: Reducing Zinc Redistribution and Extending Cycle Life Via Electrochemical Synthesis of Zinc/Zinc Oxide Anodes in Rechargeable Alkaline Batteries
Reducing Zinc Redistribution and Extending Cycle Life Via Electrochemical Synthesis of Zinc/Zinc Oxide Anodes in Rechargeable Alkaline Batteries Open
Redistribution of zinc over the electrode surface, also known as shape change, is a major problem and a cause of failure in alkaline zinc anode batteries. To mitigate this phenomenon, we propose a scalable approach based on an in situ form…
View article: Ion-Selective Separators in Alkaline Zinc Batteries for Grid Storage Applications [Slides]
Ion-Selective Separators in Alkaline Zinc Batteries for Grid Storage Applications [Slides] Open
Grid-level energy storage systems are needed to enable intermittent renewables. Li-ion, Pb-acid battery systems have been implemented but pose safety and environmental risks. Successful grid storage must be safe, reliable, and low-cost.
View article: Ion-Selective Separators in Alkaline Zinc Batteries for Grid Storage Applications [Slides]
Ion-Selective Separators in Alkaline Zinc Batteries for Grid Storage Applications [Slides] Open
Grid-level energy storage systems are needed to enable intermittent renewables. Li-ion, Pb-acid battery systems have been implemented but pose safety and environmental risks. Successful grid storage must be safe, reliable, and low-cost.
View article: Zincate-Blocking-Functionalized Polysulfone Separators for Secondary Zn–MnO<sub>2</sub> Batteries
Zincate-Blocking-Functionalized Polysulfone Separators for Secondary Zn–MnO<sub>2</sub> Batteries Open
Alkaline zinc-manganese dioxide (Zn-MnO2) batteries are well suited for grid storage applications because of their inherently safe, aqueous electrolyte and established materials supply chain, resulting in low production costs. With recent …
View article: Going beyond Intercalation Capacity of Aqueous Batteries by Exploiting Conversion Reactions of Mn and Zn electrodes for Energy‐Dense Applications
Going beyond Intercalation Capacity of Aqueous Batteries by Exploiting Conversion Reactions of Mn and Zn electrodes for Energy‐Dense Applications Open
The recent trend in zinc (Zn) anode aqueous batteries has been to explore layered structures like manganese dioxides and vanadium oxides as Zn‐ion intercalation hosts. These structures, although novel, face limitations like their layered c…
View article: An Operando Study of the Initial Discharge of Bi and Bi/Cu Modified MnO<sub>2</sub>
An Operando Study of the Initial Discharge of Bi and Bi/Cu Modified MnO<sub>2</sub> Open
It was recently reported that inclusion of Cu in Bi-modified MnO2 cathodes allowed over 1000 cycles at nearly the full capacity of 617 mAh/g-MnO2, at a high areal capacity of 28 mAh/cm2. To better understand the molecular mechanism by whic…