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Updated: Apr 19, 2026

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model
Published on: May 23, 2018
Structural and silver/vanadium ratio effects on silver vanadium phosphorous oxide solution formation kinetics: impact
David C Bock1, Kenneth J Takeuchi, Amy C Marschilok
1Department of Chemistry, Stony Brook University, Stony Brook, NY 11794, USA. kenneth.takeuchi.1@stonybrook.edu amy.marschilok@stonybrook.edu esther.takeuchi@stonybrook.edu.
Understanding cathode material dissolution is key to improving battery life. Silver vanadium phosphorous oxide materials show lower solubility, offering potential alternatives for implantable cardioverter defibrillator batteries.
Area of Science:
- Electrochemistry
- Materials Science
- Battery Technology
Background:
- Non-faradaic parasitic reactions degrade battery lifespan.
- Cathode material dissolution (e.g., manganese, cobalt, vanadium oxides) is a known failure mechanism.
- Detailed kinetic studies on cathode dissolution are lacking.
Purpose of the Study:
- To provide a framework for quantitative and kinetic analysis of cathode material dissolution.
- To investigate the dissolution of silver vanadium oxide and silver vanadium phosphorous oxide materials.
- To identify alternative materials with reduced solubility for long-life battery applications.
Main Methods:
- Kinetic analysis of silver and vanadium dissolution in a non-aqueous electrolyte.
- Comparison of dissolution rates for various silver vanadium oxide and silver vanadium phosphorous oxide compounds.
- Correlation of dissolution behavior with crystal structure and stoichiometry.
Main Results:
- First kinetic analyses of silver and vanadium solution formation from Ag0.48VOPO4·1.9H2O and Ag2VP2O8.
- Significant vanadium dissolution observed in Ag2V4O11 and Ag0.49VOPO4·1.9H2O.
- Ag2VO2PO4 and Ag2VP2O8 exhibited the lowest vanadium solubility among the studied silver vanadium phosphorous oxide materials.
Conclusions:
- Silver vanadium phosphorous oxide materials, specifically Ag2VO2PO4 and Ag2VP2O8, demonstrate reduced solubility.
- These materials are promising alternatives to Ag2V4O11 for implantable cardioverter defibrillator applications due to low dissolution and good electrochemical performance.
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