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US 5,221,453 AGranted
Silver vanadium oxide cathode material and method of preparation
AssigneeMedtronic, Inc.
InventorAnn M. Crespi
Life of this patent
Estimating the term…
Abstract
Improved high rate cathode material and method of making same by chemical addition reaction.
Claims11
A method for making an electrochemical cell having the steps of:
- admixing silver vanadium oxide with a conductive material and a binder and forming the admixture into a cathode;
- combining the cathode with a lithium metal anode;
- and combining an electrolyte with the anode and cathode, the method consisting of:
- preparing the silver vanadium oxide by a chemical addition reaction consisting of admixing AgVO.sub.3 and V.sub.2 O.sub.5 in a 2:1 mole ratio heating the admixed AgVO.sub.3 and V.sub.3 O.sub.5 at a reaction temperature in the range of 300.degree. C. to 700.degree. C. for 5 to 24 hours.
1 more element
A method for making an electrochemical cell having the steps of:
- admixing silver vanadium oxide with a conductive material and a binder and forming the admixture into a cathode;
- combining the cathode with a lithium metal anode;
- and combining an electrolyte with the anode and cathode, the method consisting of:
- preparing the silver vanadium oxide by a chemical addition reaction consisting of admixing Ag.sub.2 O.sub.5 and V.sub.2 O.sub.5 in a 1:2 mole ratio heating the admixed Ag.sub.2 O and V.sub.2 O.sub.5 at a reaction temperature in the range of 300.degree. C. to 700.degree. C. for 5 to 24 hours.
1 more element
A method for making an electrochemical cell having the steps of:
- admixing silver vanadium oxide with a conductive material and a binder and forming the admixture into a cathode;
- combining the cathode with a lithium metal anode;
- and combining an electrolyte with the anode and cathode, the method consisting of:
- preparing the silver vanadium oxide by a chemical addition reaction consisting of:
- admixing Ag and V.sub.2 O.sub.5 in a 1:1 mole ratio heating the admixed Ag and V.sub.2 O.sub.5 in contact with oxygen at a reaction temperature in the range of 300.degree. C. to 700.degree. C. for 5 to 24 hours.
2 more elements
An electrochemical cell having a lithium metal anode, cathode and an electrolyte having a metal salt in a nonaqueous solvent comprising:
- the cathode including a crystalline silver vanadium oxide prepared by a chemical addition reaction.
Dependencies are inferred from the claim text.