Abstract: A method for producing metal-based thin foils is provided, which includes the steps of extruding a metal through an extruder to form a preliminary foil, cooling the preliminary foil in a coolant bath, and rolling the preliminary foil in a rolling system containing at least two rollers to form a metal-based thin foil.

Abstract: A separator for a lithium secondary cell is provided. The separator has a separator substrate, selected from porous separators for liquid-electrolyte cells and solid-electrolyte separators having lithium ion conductivity, and has a layer of glassy carbon (GC), which is applied at least on one side of the separator substrate. A lithium secondary cell is also provided, which contains a negative electrode, a positive electrode, and a separator placed between the negative electrode and the positive electrode. The glassy carbon layer of the separator faces the negative electrode.

Abstract: A sintered electrode having a sintered composite material is provided. The composite material contains (A) active-material particles, (B) solid-state electrolyte particles from an inorganic lithium ion conductor, (C) a particulate conductivity additive from an electrically conductive material and (D) a fibrous material, with weight proportions N(A) to N(D) of components (A) to (D) in the composite material satisfy the following: N (A)>N (B)>N (C), N (D). A solid-state lithium-ion battery containing such sintered electrode is also provided.

Abstract: A lithium-sulfur battery which includes an electrolyte containing lithium-ions, an anode and a cathode containing sulfur. The lithium-sulfur battery also contains a surface layer which is arranged between the anode and the cathode. The lithium-sulfur battery further includes areas on the cathode side which contain polysulfides. The surface layer of the lithium-sulfur battery contains at least one graphene layer which is permeable to lithium ions and impermeable to polysulfides.

Abstract: A separator for a lithium secondary cell is provided. The separator has a separator substrate, selected from porous separators for liquid-electrolyte cells and solid-electrolyte separators having lithium ion conductivity, and has a layer of glassy carbon (GC), which is applied at least on one side of the separator substrate. A lithium secondary cell is also provided, which contains a negative electrode, a positive electrode, and a separator placed between the negative electrode and the positive electrode. The glassy carbon layer of the separator faces the negative electrode.

Abstract: A method for producing metal-based thin foils is provided, which includes the steps of extruding a metal through an extruder to form a preliminary foil, cooling the preliminary foil in a coolant bath, and rolling the preliminary foil in a rolling system containing at least two rollers to form a metal-based thin foil.

Abstract: A sintered electrode having a sintered composite material is provided. The composite material contains (A) active-material particles, (B) solid-state electrolyte particles from an inorganic lithium ion conductor, (C) a particulate conductivity additive from an electrically conductive material and (D) a fibrous material, with weight proportions N(A) to N(D) of components (A) to (D) in the composite material satisfy the following: N (A)>N (B)>N (C), N (D). A solid-state lithium-ion battery containing such sintered electrode is also provided.

Abstract: A method produces an electrochemical cell for a solid-state battery having a negative electrode, a positive electrode and a lithium-ion-conducting solid electrolyte arranged between the negative electrode and the positive electrode. The negative electrode has a layer of metallic lithium which directly adjoins the solid electrolyte. In order to produce the electrochemical cell, the layer of metallic lithium is heated until it softens before being joined together with the solid electrolyte. An electrochemical cell includes the negative electrode with a layer of metallic lithium which directly adjoins the solid electrolyte, and a layer of a lithium-metal alloy on the layer of metallic lithium.

Abstract: A lithium ion battery is provided having at least an electrolyte that has a solvent and, dissolved therein, a conducting salt containing lithium ions; and also has one or more safety means which increase the safety of the battery if the mode of functioning of the battery is impaired by an incident.

Abstract: An electrode and a galvanic cell are provided, each having a shaped body which is composed of porous carbon foam and in the pores of which layers of active material and electrolyte, in particular solid-state electrolytes, are formed. The layer including electrochemical active material is in this case in electrically conductive contact with the shaped body, and the layer including solid-state electrolyte material is in contact with the active material. The electrodes or galvanic cells are particularly suitable for use in electrical energy stores for vehicles, such as in batteries for example, for delivering electrical energy to traction motors of motor vehicles with an electric or hybrid drive and are distinguished in that particularly high energy and power densities of corresponding galvanic cells and batteries manufactured therefrom are possible with them.

Abstract: A lithium-ion cell that includes a positive electrode having a partially lithiated material as an active material for the positive electrode, and a negative electrode having a partially lithiated material as an active material for the negative electrode.

Abstract: A lithium-sulfur battery which includes an electrolyte containing lithium-ions, an anode and a cathode containing sulfur. The lithium-sulfur battery also contains a surface layer which is arranged between the anode and the cathode. The lithium-sulfur battery further includes areas on the cathode side which contain polysulfides. The surface layer of the lithium-sulfur battery contains at least one graphene layer which is permeable to lithium ions and impermeable to polysulfides.

Abstract: An electrochemical cell that includes a negative electrode, a positive electrode, a protective layer situated on the negative electrode, which separates the negative electrode from the positive electrode, and an electrolyte, the negative electrode at least partially including metallic lithium, and the protective layer situated on the negative electrode being formed of a composite material, including at least one first material and one second material. Also described is a corresponding method for manufacturing an electrochemical cell.