Abstract: A lamination lubricant dispensing unit for lubricating a working roller of a rolling mill for laminating a sheet of alkali metal or alloy thereof into a film. The lubricant dispensing unit has a dispensing unit body defining a laterally extending wall; first and second side walls extending forwardly from the laterally extending wall; and a ledge connected to lower ends of the walls. The ledge extends forwardly from the laterally extending wall and extending between the side walls. The ledge and the walls define a recess having an opened side. The ledge has a front edge for abutting a lamination surface of the working roller. At least a portion of the ledge is an angled portion extending upward and rearward from the front edge toward the laterally extending wall. The dispensing unit body defines at least one lubricant passage having an outlet defined in the laterally extending wall.

Abstract: The invention relates to a solid polymer electrolyte for a battery comprising at least one polymer which solvates the cations of a lithium salt, at least one lithium salt and at least one specifically selected halogenated polymer, and also to the lithium batteries comprising such a solid polymer electrolyte, in particular LMP batteries.

Abstract: The invention relates to the use of lithium nitrate as sole lithium salt providing the ion conductivity in a gelled rechargeable lithium metal battery not comprising polysulfide ions, for improving its lifetime.

Abstract: A working roller for a rolling mill for laminating a sheet of alkali metal or alloy thereof into a film is disclosed. The working roller has a cylindrical center portion defining a central axis, the center portion having an outer surface defining a lamination surface; and first and second frustoconical portions extending from first and second ends of the center portion respectively. When the central axis is straight, an angle between the outer surface of the center portion and an outer surface of each of the first and second frustoconical portions is less than 0.05 degrees. A width of the center portion is greater than a width of each of the first and second frustoconical portions. The width of the center portion is less than a sum of the widths of the first and second portions. A rolling mill having two such working rollers is also disclosed.

Abstract: A method for cutting a metallic film is disclosed. The method includes: feeding the metallic film between a scoring blade and an anvil at a first speed; feeding a first protective film between the metallic film and the scoring blade; feeding a second protective film between the metallic film and the anvil; moving the scoring blade toward the anvil for applying a pressure onto the first protective film, the metallic film, and the second protective film disposed between the scoring blade and the anvil for making a score along a width of the protective film; and pulling the metallic film having passed between the scoring blade and the anvil at a second speed. The second speed being greater than the first speed. A difference between the first and second speeds causes the metallic film to cut at the score. A system for cutting a metallic film is also disclosed.

Abstract: The invention relates to the simultaneous use of a first salt comprising a nitrate anion (NO3?) and a second salt comprising an anion other than nitrate, at least one of the first and second salts being a lithium salt, as ionic conductivity promoters in a rechargeable lithium-metal-gel battery. The invention also relates to a lithium-gel battery comprising a mixture of said first salt and said second salt, to a non-aqueous gel electrolyte comprising such mixture and to a lithium battery positive electrode comprising said mixture.

Abstract: A pass-through connector for a battery pack having a hermetic casing is disclosed. The pass-through connector has a body including: a hermetic electrical, a first body portion defining a first connector portion, a second body portion opposite the first body portion, and a flange connected to and projecting radially from the second body portion. The pass-through connector also has a second connector portion selectively connected to the first connector portion, and a gasket abutting an engagement surface of the flange and adapted for providing a hermetic seal between the pass-through connector and the casing. At least one of the first body portion and the second connector portion defines at least one recess for permitting gas exchange in and out of the casing. A battery pack having the pass-through connector, and a method for introducing at least one gas in a hermetically sealable casing for a battery pack are also disclosed.

Abstract: A lithium metal battery is disclosed. The lithium battery comprising a Li metal anode, a cathode and an electrolyte in between the Li metal anode and the cathode wherein the electrolyte includes immobilized anions at least at the interface between the Li metal anode and the electrolyte to maintain the anionic concentration at the interface above zero throughout the charge-discharge cycles thereby preventing surface potential instability at the interface of the Li metal anode and electrolyte.

Abstract: The present invention relates to a high energy density lithium metal polymer (LMP) battery comprising a positive electrode that includes a high potential positive electrode active material and a block copolymer of AB or BAB type, A being an ethylene oxide block and B being an anionic polymer block based on lithium bis(trifluoromethylsulfonyl)imide.

Abstract: A solid polymer electrolyte for a battery is disclosed. The solid polymer electrolyte includes solid polymer electrolyte including a diblock copolymer AB or a triblock copolymer of the BAB type, in which block A is an unsubstituted polyethylene oxide chain having a number-average molecular weight less than 80,000 g/mol; block B is an anionic polymer prepared from one or more monomers selected from vinyl monomers and derivatives thereof to which is grafted an anion of lithium salt, and a second monomer having cross-linking functions.

Abstract: The present invention relates to a process for decreasing the internal impedance of a lithium battery chosen from lithium-metal-polymer batteries and lithium-ion polymer batteries, said process comprising at least one first step consisting in raising said battery to a temperature T1 of at least 50° C., and at least one second step in which said battery is maintained for between 5 hours and 1 week at the temperature T1 while applying a pressure of at least 0.5 bar.

Abstract: A lithium metal battery is disclosed. The lithium battery comprising a Li metal anode, a cathode and an electrolyte in between the Li metal anode and the cathode wherein the electrolyte includes immobilized anions at least at the interface between the Li metal anode and the electrolyte to maintain the anionic concentration at the interface above zero throughout the charge-discharge cycles thereby preventing surface potential instability at the interface of the Li metal anode and electrolyte.

Abstract: Provided is an analogue system for balancing a rechargeable electrical energy storage assembly including a plurality of capacitive-effect electrical energy storage devices connected to one another in series, the system including a balancing device for each storage device, including: a bypass circuit for the storage device, and a first comparator, arranged to control the bypass circuit according to the voltage across the terminals of the storage device and according to a balancing voltage; a second comparator, arranged to control an open state of the bypass circuit of each storage device according to a switch-off voltage, and according to the voltage across the terminals of each storage device.

Abstract: The present invention relates to the field of organic lithium batteries having high energy and power densities. In particular, the present invention relates to an organic lithium battery comprising a positive electrode based on redox organic compounds and a porous separator made of biaxially oriented polypropylene, and to its process of manufacture.

Abstract: Organic lithium batteries are provided having high energy and power densities with a positive electrode based on redox organic compounds and an electrolyte having a high concentration of lithium salt.

Abstract: A lithium metal polymer battery comprising a rigid casing and at least one electrochemical cell; the battery assembled without an active mechanical pressure system.

Abstract: A lithium battery comprising a plurality of electrochemical cells assembled together and a rigid casing forming an enclosure. The plurality of electrochemical cells includes: at least one first electrochemical cell, at least one second electrochemical cell; and at least one third electrochemical cell disposed between the at least one first electrochemical cell and the at least one second electrochemical cell. The at least one first electrochemical cell is disposed between a first wall of the casing and the at least one third electrochemical cell. The at least one second electrochemical cell is disposed between a second wall of the casing and the at least one third electrochemical cell. The first and second walls provide a heat sink path to dissipate excess heat generated by the plurality of electrochemical cells. The at least one first and second electrochemical cells are more capacitive than the at least one third electrochemical cell.

Abstract: The present invention concerns a positive electrode including a composite material including sulfur and carbon as an active material and its method of manufacture, a lithium-sulfur battery including such a positive electrode and its method of manufacture.

Abstract: A conversion circuit device for connecting lithium based batteries to a standard inverter/charger for lead-acid batteries and an Uninterruptible Power Supply (UPS) system for homes and facilities comprising a standard inverter/charger for lead-acid batteries, at least one lithium based battery, and a conversion circuit device connecting the at least one lithium based battery to the standard inverter/charger; the conversion circuit device translating the state of the at least one lithium based battery into signals that correspond to the state of a lead-acid battery.

Abstract: The invention relates to a die for manufacturing a film by extrusion, comprising two blocks (100, 200) that define a flow duct (110) between one another, at least one (200) of the two blocks comprising a body (210) that has a deformable portion (220) for modifying the outlet opening of the die, characterized in that means (300) for subjecting the deformable portion to a force comprise at least one bearing part (310) that extends in a general direction (V) perpendicular to the direction (L) of flow at the die outlet and comprises a first end (312) bearing against the deformable portion (220), adjusting means (350, 380) in contact with the bearing part (310) modifying the position of this part.