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Title: Lithiated vanadium oxide (LVO), gamma-lithium vanadium bronze (gamma-LiV2O5) and vanadium dioxide (Vo2) as thermal-battery cathode materials. Technical report

Thermal batteries are high temperature reserve batteries, predominantly used in missiles. Modern designs use a lithium (or lithium alloy) anode, an immobilized molten salt electrolyte and an iron-disulphide cathode. These batteries have many advantages: high reliability, long storage life without maintenance, wide temperature range of operation and, sometimes, high power. However, the energy density is rather low and this could be improved if the individual cell voltage could be raised above the present 2.2 V/cell open circuit-voltage for the lithium iron-disulphide couple. A new cathode material, lithiated vanadium oxide (LVO), been invented at RAE with the advantage of the much higher open-circuit voltage of 2.6 V/cell versus lithium. The properties of LVO have been investigated and it has been shown that LVO consists of vanadium dioxide as the major component. Some lithium bromide is also present.
Authors:
;
Publication Date:
OSTI Identifier:
5918692
Report Number(s):
AD-A-242948/8/XAB; RAE-TR--91044
Resource Type:
Technical Report
Resource Relation:
Other Information: Original contains color plates: All DTIC reproductions will be in black and white
Research Org:
Royal Aerospace Establishment, Farnborough (United Kingdom)
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; LITHIUM; MATERIALS TESTING; THERMAL BATTERIES; CATHODES; VANADIUM OXIDES; DESIGN; EFFICIENCY; ELECTRIC POTENTIAL; ELECTROLYTES; ELECTROLYTIC CELLS; ENERGY DENSITY; LITHIUM ALLOYS; SALTS; SERVICE LIFE; STORAGE; ALKALI METALS; ALLOYS; CHALCOGENIDES; ELECTRIC BATTERIES; ELECTROCHEMICAL CELLS; ELECTRODES; ELEMENTS; METALS; OXIDES; OXYGEN COMPOUNDS; TESTING; TRANSITION ELEMENT COMPOUNDS; VANADIUM COMPOUNDS 250901* -- Energy Storage-- Batteries-- Design & Development; 250903 -- Energy Storage-- Batteries-- Materials, Components, & Auxiliaries