Abstract: An electrochemical cell includes an anode composed of a salt, a cathode insulated from the anode and a non-aqueous electrolyte in contact with the anode. The electrolyte may include an organic solvent that comprises at least approximately one percent by volume trimethylene carbonate.

Abstract: A more efficient LiPF6 lithium-ion electrochemical system composed of a phosphate free, borate lithium salt electrolyte LiTPTB composed of LiBC32F24H12 in a ternary mixed organic solvent containing a 1:1:1 volume ratio of EC, DMC and EMC is provided. The borate salt of the LiTPTB electrolyte decomposes at temperatures above 110° C. and does not react with water and also has an oxidation potential of about 4.4 V versus lithium, making it suitable for use in high voltage lithium-ion cells and batteries. A 0.3 to 1.0 M molar concentration of LiTPTB composed of LiBC32F24H12 in a ternary mixed organic solvent containing a 1:1:1 volume ratio of EC, DMC and EMC is also provided.

Abstract: Military vehicles often provide power to operate chargers to charge portable rechargeable batteries in the field. The military uses a NATO standardized DC slave plug as a connection from the vehicle battery to external charger devices. The NATO standardized DC slave plug is directly connected to the vehicle battery and offers no electrical protection to the vehicle battery. This method employs a battery charger adapter providing controlled DC power from the vehicle battery to charger devices for recharging Army communication batteries. The battery charger adapter is connected between the NATO standardized DC slave plug and an external charger and includes an electromechanical relay acting as an automatic safety switch which cuts off the load on the vehicle battery when the battery voltage falls to a predetermined critical voltage level, to prevent over-discharge of the vehicle battery.

Abstract: A NATO DC slave plug adapter for use in providing controlled DC power from he battery of a military vehicle to charger devices for recharging Army communication batteries includes an automatic safety switch which cuts off the load on the vehicle battery when the battery voltage falls to a critical level. The critical level may be generally determined by the amount of charge necessary in the vehicle battery to start or reliably operate the vehicle.

Abstract: A new cathode material, Li.sub.2 CuO.sub.2, is used in lithium electrocheal cells.

Abstract: An improved electrochemical cell is provided using a high surface area can electrodes as the negative electrode in an alkali metal hydroxide electrolyte.

Abstract: A solid state electrochemical cell is provided for performing electrocheml measurements on a solid electrolyte at high temperatures. The solid state electrochemical cell includes a noble metal working electrode, a lithium alloy reference electrode, and counter electrode, and a solid solution of lithium germanium oxide and lithium vanadium oxide as the solid electrolyte.

Abstract: High temperature molten salt electrochemical cells that are economic are e using an alkali metal intercalated petroleum coke as the anode.

Abstract: An electrochemical cell is provided using graphite immersed in molten NaA.sub.4 (mp150.degree. C.) as the cathode, liquid sodium as the anode and .beta. alumina as the sodium ion conducting solid electrolyte to separate the anode and cathode compartments.

Abstract: An improved solid state electrochemical cell is provided including a lith ion conducting solid electrolyte. The lithium ion conducting solid electrolyte is a solid solution of lithium germanium oxide and lithium vanadium oxide that includes lithium iodide as an additive. The improved cell can be used as a high temperature high rate rechargeable cell or as a high temperature thermal cell.

Abstract: A solid state electrochemical cell is provided including lithium-aluminum loy as the anode, a solid solution of lithium germanium oxide (Li.sub.4 GeO.sub.4) and lithium vanadium oxide (Li.sub.3 VO.sub.4) as the electrolyte, and a platinum disk as the cathode. The cell is particularly suitable for use as an oxygen sensor to measure the partial pressure of oxygen gas at about 300.degree. C. in a mixture of gases.

Abstract: A high temperature rechargeable solid electrolyte electro-chemical cell is rovided including an alloy of lithium as the anode, a compound selected from the group consisting of MnO.sub.2, FeS.sub.2, CoS.sub.2, MoS.sub.2, MoS.sub.3, NiS.sub.2, LiCoO.sub.2, LiNiO.sub.2, V.sub.6 O.sub.13, Cr.sub.3 O.sub.8, V.sub.2 O.sub.5, V.sub.2 S.sub.5, and other transition metal halides, chalcogenides, selenides, tellurides, and oxides as the cathode, and a solid solution of Li.sub.4 GeO.sub.4 and Li.sub.3 VO.sub.4 as the solid electrolyte.

Abstract: A highly conductive electrolyte is provided for use in an ambient temperae rechargeable lithium battery including a lithium intercalating anode and a more positive lithium intercalating cathode. The electrolyte includes a solution of a lithium salt in acetonitrile.

Abstract: A solid solution of lithium germanium oxide and lithium vanadium oxide is cluded as a solid state electrolyte in a thermal electrochemical cell.

Abstract: A salt additive to lithium conducting organic electrolytes which thermally stabilizes the solution and more particular to provide improved cell operation and storage of lithium ion cells at elevated temperatures is LiBF4 and is employed in a salt molar ratio of at least about 1:1.

Abstract: A method is provided for preparing flexible, free standing electrodes for use in preparing transition metal sulfide cathodes for use in high temperature electrochemical cells. Specifically, the cells contain sodium as the anode, a solid electrolyte separator of .beta."-Al.sub.2 O.sub.3, and a Teflon bonded iron (IV) sulfide cathode emmersed in a molten salt electrolyte of NaAlCl.sub.4 and electrochemically operated at 200.degree. C.

Abstract: A high temperature molten salt thermal cell is provided including an alkali etal containing anode, a molten lithium halide electrolyte and at least one binary sulfide of chromium as the cathode.

Abstract: Binary sulfides of chromium of the formula Cr.sub.2 S.sub.3, Cr.sub.3 S.s4, and CrS are used as the cathode in a high temperature molten rechargeable salt cell. The cathode material is thermally stable at high temperatures and also provides high specific energy densities and specific power densities to that the cell can be used in pulse power, electric propulsion and load leveling applications.

Abstract: An oxyhalide electrochemical cell is provided including an alkali metal ircalated carbon as the anode, a high surface area carbon black as the cathode, and a solution of an alkali metal salt in an oxyhalide solvent as the electrolyte.

Abstract: A solid polymer electrolyte having an increased conductivity is provided luding a solution of at least one lithium salt in at least one polymer host, and wherein said solid polymer electrolyte also includes a dispersion of a lithium ion conducting solid ceramic material. A solid state electrochemical cell including the electrolyte is also provided.