Abstract: An electrochemical cell assembly comprising: at least one electrochemical cell or cells comprising—a cathode comprising an electrochemically active material; —an anode comprising an alkali metal or alkali metal alloy layer and a protection layer containing a first layer and a second layer; wherein the first layer comprises a metal and/or non-metal that alloys with an alkali metal and is formed on the alkali metal or alkali metal alloy layer, and an second layer deposited on the first layer, wherein the second layer is an ionically conducting layer having an electronic conductivity of less than 10?5 S cm?1; and—an electrolyte, and wherein the cell assembly further comprises a means of applying pressure to the at least one electrochemical cell or cells.

Abstract: An electrochemical cell assembly comprising: at least one electrochemical cell or cells comprising—a cathode comprising an electrochemically active material, wherein alkali metal is present in the cathode;—an anode comprising a current collector comprising an electronically conducting, inert metal or non-metal; and said anode further comprising a protection layer containing a first layer and a second layer; wherein the first layer comprises a metal and/or non-metal that alloys with an alkali metal and is formed on the current collecting layer, and an second layer deposited on the first layer, wherein the second layer is an Tonically conducting layer having an electronic conductivity of less than 10?5 S cm?1; wherein the cell assembly further comprises a means of applying pressure to the at least one electromechanical cell or cells.

Abstract: A functionalized lithium anode for batteries, which is obtainable according to a specific process using diazonium salts. The embodiments also relate to the use of that lithium anode in cells, to a cell including that lithium anode, to the use of that cell in an electronic device, and to an electronic device including that cell.

Abstract: A lithium-air battery is provided, which includes a cathode having a gas diffusion layer containing a solid electronically conductive material coated with carbon black, the gas diffusion layer being at least partially filled with gaseous air, a separator having an electronically nonconducting filter material arranged between the anode and the cathode, the filter material being at least partially impregnated with a liquid electrolyte, and an anode containing a material selected from lithium metal, material alloyable with lithium, metal oxide, and mixtures thereof. Methods for making such battery and the use of such battery in a motor vehicle are also provided.

Abstract: An all-solid-state secondary battery including: a positive electrode layer; a negative electrode layer; and a solid electrolyte layer between the positive electrode layer and the negative electrode layer, wherein the positive electrode layer includes a sulfur-containing positive electrode active material, a halogen-containing sulfide solid electrolyte, and a conductive carbon material, and wherein the sulfur-containing positive electrode active material includes elemental sulfur and a transition metal disulfide.

Abstract: A lithium-air battery is provided, which includes a cathode having a gas diffusion layer containing a solid electronically conductive material coated with carbon black, the gas diffusion layer being at least partially filled with gaseous air, a separator having an electronically nonconducting filter material arranged between the anode and the cathode, the filter material being at least partially impregnated with a liquid electrolyte, and an anode containing a material selected from lithium metal, material alloyable with lithium, metal oxide, and mixtures thereof. The liquid electrolyte contains a hydrophobic, ionic liquid, such as DEME-TFSI and a lithium salt, such as LiTFSI. The three phases of gaseous air, liquid electrolyte and solid, electronically conductive material are in contact on at least one point of the gas diffusion layer. Methods for making such battery and the use of such battery in a motor vehicle are also provided.

Abstract: An all-solid-state secondary battery including: a positive electrode layer; a negative electrode layer; and a solid electrolyte layer between the positive electrode layer and the negative electrode layer, wherein the positive electrode layer includes a sulfur-containing positive electrode active material, a halogen-containing sulfide solid electrolyte, and a conductive carbon material, and wherein the sulfur-containing positive electrode active material includes elemental sulfur and a transition metal disulfide.