Quantifying Chlorine Gas Evolution from Mixed-Acid Vanadium Redox Flow Batteries: A Case Study on Aqueous Battery Safety
Abstract not provided.
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Jump to search filtersDegradation of Li-ion Cells Beyond 80% Initial Capacity
Abstract not provided.
Quantification of Chlorine Gas Generation in Mixed-Acid Vanadium Redox Flow Batteries
ACS Applied Energy Materials
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 introduces a significant safety risk through chlorine gas (Cl2) evolution. Here, we present the first direct measurements of Cl2 generation in a mixed-acid VRFB. Cl2 is generated through an electrochemical reaction when the system is charged above ∼74% state of charge with concentrations exceeding 3% of the system headspace. We explore how Cl2 evolution is enabled and propose mitigation strategies.
Quantifying Chlorine Gas Evolution from Mixed-Acid Vanadium Redox Flow Batteries
Abstract not provided.
Update on systematic cycle aging of NMC and NCA 18650 Li-ion batteries
Abstract not provided.
Quantifying Chlorine Gas Evolution from Mixed-Acid Vanadium Redox Flow Batteries
Abstract not provided.
Long Term Cycling of 18650 Li-ion Cells Beyond 80% Capacity
Abstract not provided.
A Brief Overview of Flow Battery Construction and Operational Considerations
Abstract not provided.
Systematic Cycle and Calendar Aging of Commercial 18650 LFP Lithium-Ion Cells
Abstract not provided.
Path Dependence of Li-Ion Battery Degradation During Cycling to 80% Capacity
Abstract not provided.
Advances in Energy Storage Technologies
Abstract not provided.
Systematic Long-Term Cycling of 18650 Batteries Beyond 80% Capacity
Abstract not provided.
Gas Evolution from Mixed-AcidFlow Batteries
Abstract not provided.
Cycling of Li-ion Batteries Beyond 80% Capacity
Abstract not provided.
Side by Side Comparison of Redox Flow and Li-ion Batteries
Abstract not provided.
Comprehensive Electrochemical and Materials Characterization of Commercial Li-ion Battery Degradation
Abstract not provided.
Gas Evolution from Mixed-Acid Vanadium Redox Flow Battery
Abstract not provided.
Overview of Aqueous Battery Safety and Reliability Concerns
Abstract not provided.
Materials Degradation Trends from Systematic Long-Term Cycling of Commercial Li-Ion Batteries
Abstract not provided.
Long-term Performance and Safety of Commercial Li-ion Cells
Abstract not provided.
Electrochemical and Materials Characterization of Li-ion Cells during Long Term Cycling
Abstract not provided.
Perspective—On the Need for Reliability and Safety Studies of Grid-Scale Aqueous Batteries
Journal of the Electrochemical Society (Online)
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, they can still undergo problematic degradation processes. This perspective details the degradation that aqueous batteries can experience during normal and abusive operation, and how these processes can even lead to cascading failure. We outline methods for studying these phenomena at the material and single-cell level. Considering reliability and safety studies early in technology development will facilitate translation of emerging aqueous batteries from the lab to the field.
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