A Kinetics and Equilibrium Study of Vanadium Dissolution from Vanadium Oxides and Phosphates in Battery Electrolytes: Possible Impacts on ICD Battery Performance.

ABSTRACT: Silver vanadium oxide (Ag₂V₄O₁₁, SVO) has enjoyed widespread commercial success over the past 30 years as a cathode material for implantable cardiac defibrillator (ICD) batteries. Recently, silver vanadium phosphorous oxide (Ag₂VO₂PO₄, SVPO) has been studied as possibly combining the desirable thermal stability aspects of LiFePO₄ with the electrical conductivity of SVO. Further, due to the noted insoluble nature of most phosphate salts, a lower material solubility of SVPO relative to SVO is anticipated. Thus, the first vanadium dissolution studies of SVPO in battery electrolyte solutions are described herein. The equilibrium solubility of SVPO was ~5 times less than SVO, with a rate constant of dissolution ~3.5 ti

SUBMITTER: Bock DC 

PROVIDER: S-EPMC4389686 | biostudies-literature | 2013 Jun

REPOSITORIES: biostudies-literature