Abstract: A method for producing a cathode for a lithium-ion battery includes providing a cathode collector carrier film and applying a coating compound onto at least one main surface of the cathode collector carrier film. The coating compound contains a particulate auxiliary material. The coating compound is subsequently compressed to form a cathode film on the cathode collector carrier film. During the compression of the coating compound, the cathode collector carrier film is perforated. A lithium-ion battery is also described.

Abstract: A method for producing a lithium ion battery includes the following steps: A casing is provided and an electrode arrangement is inserted therein. The electrode arrangement is formed from alternating layers of a cathode and an anode, where at least one anode contains an anode active material comprising a silicon- and/or titanium-based constituent. At least one flexible volume compensation element is situated between the electrode arrangement and the casing. The volume compensation element comprises a shell and an inert gas or electrolyte accommodated within the shell. The volume compensation element counteracts expansion of the electrode arrangement. The casing is sealed to form the lithium ion battery. The lithium ion battery is then charged, and the shell of the volume compensation element is opened to release the inert gas or the electrolyte when a target expansion of the electrode arrangement is reached. A lithium ion battery is also described.

Abstract: A method for producing an anode for a lithium-ion battery includes providing an anode collector carrier film and applying a coating compound onto at least one main surface of the anode collector carrier film. The coating compound contains a particulate auxiliary material. The coating compound is subsequently compressed to form an anode film on the anode collector carrier film. During the compression of the coating compound, the anode collector carrier film is perforated. A lithium-ion battery is also described.

Abstract: An active cathode material for a lithium-ion cell includes a mixture of particles having particle sizes distributed according to a bimodal particle size distribution which has a first modal value and a second modal value, where the first modal value is greater than the second modal value. The mixture of particles comprises first particles and second particles that intercalate lithium or are configured to intercalate lithium. The first particles have a particle size which is greater than a predefined first particle size range limit. The second particles have a particle size which is less than a predefined second particle size range limit. The second predefined particle size range limit is less than the predefined first particle size range limit. A particle size distribution of each of the first particles and the second particles is unimodal. The second particles have a mechanical strength higher than that of the first particles.

Abstract: A lithium ion battery includes a cathode, which has a composite cathode active material, and an anode, which has an anode active material. The composite cathode active material includes at least a first and a second cathode active material, wherein the second cathode active material is a compound having an olivine structure, and wherein at least a lithiation degree of the first cathode active material differs from a lithiation degree of the second cathode active material. Prior to electrolyte filling or the first discharging and/or charging process of the lithium ion battery, the lithiation degree of the first cathode active material is higher than the lithiation degree of the second cathode active material. Prior to electrolyte filling or the first discharging and/or charging process of the lithium ion battery, the anode active material is pre-lithiated. A method for producing a lithium ion battery of this kind is also described.

Abstract: A lithium ion battery includes a cathode having a composite cathode active material and an anode having an anode active material. The composite cathode active material includes at least one first and one second cathode active material, wherein the second cathode active material is a compound having a spinel structure and wherein at least a lithiation degree of the first cathode active material differs from a lithiation degree of the second cathode active material. A degree of lithiation a of the first cathode active material is higher than a degree of lithiation b of the second cathode active material before electrolyte filling and before the first discharging and/or charging process of the lithium ion battery. The anode active material is pre-lithiated before the electrolyte filling and the first discharging and/or charging process of the lithium ion battery. A method for producing such a lithium ion battery is also described.

Abstract: A method for producing a composite electrode for a lithium or lithium-ion battery comprises: providing a current collector having a main surface; forming a first electrode layer on the main surface of the current collector, wherein a first adhesion is formed between the current collector and the first electrode layer along the main surface; forming a second electrode layer on the first electrode layer, wherein the first and second electrode layer contact each other along a contact surface opposite the main surface of the current collector, the second electrode layer is adhesively connected to the first electrode layer along the contact surface; and compressing the first and second electrode layer by means of a compression device, wherein, during the compressing, a pressure element of the compression device exerts a pressure on at least one part of the surface of the second electrode layer opposite the contact surface, and a second adhesion can form between the pressure element and the part of the second elect

Abstract: A cathode active material comprises lithium peroxide, wherein the lithium peroxide is provided at least in part with a coating, and wherein the coating comprises a non-metal inorganic compound. Furthermore, a cathode for a lithium-ion battery, and a lithium-ion battery, are specified, which comprise such a cathode active material. In addition, the use of coated lithium peroxide in the production of a lithium-ion battery is described.

Abstract: A composite cathode is provided which includes a collector, an active cathode material, a binder, a solid inorganic lithium-ion conductor and a liquid electrolyte. The solid inorganic lithium ion conductor is present in the composite cathode in a higher volume and weight proportion than the liquid electrolyte. A method for forming the composite cathode is also provided, and a lithium ion battery is provided which includes a composite cathode having a collector, an active cathode material, a binder, a solid inorganic lithium ion conductor and a liquid electrolyte.

Abstract: A cathode in a state prior to a first charging process is provided having an active cathode material and lithium peroxide. A lithium ion battery or an electrochemical cell includes the same cathode. A method is also provided for forming a lithium ion battery, and a lithium ion battery is provided which includes a cathode having an active cathode material, a separator, an anode having an active anode material, and an electrolyte, wherein after a formed cell is fully discharged, the active cathode material holds the same lithium content as before the formation process.

Abstract: A lithium cell is provided having an anode, a cathode, and an electrolyte gel which is located at least between the anode and the cathode and contains a lithium ion conducting salt solution. The electrolyte gel contains fibers which can be crosslinked using the lithium ion conducting salt solution and which have a surface tension of at least 30 mN/m. The lithium cell has an increased mechanical and thermal stability.

Abstract: A composite separator is provided which includes a polymer membrane, a binder, a solid inorganic lithium-ion conductor and a liquid electrolyte. The solid inorganic lithium-ion conductor is present in the composite separator in a higher volume and weight proportion than the liquid electrolyte. A method for forming the composite separator is also provided, and a lithium-ion battery is provided which includes a composite separator having a polymer membrane, a binder, a solid inorganic lithium-ion conductor and a liquid electrolyte.

Abstract: A method for the at least partial production of an electrical energy storage cell includes providing the electrode/separator arrangement, providing a plastics foil of self-adhesive form, and applying the self-adhesive plastics foil to at least a subregion of the arrangement surface. The energy storage cell has a storage cell housing in which there is accommodated an electrode/separator arrangement which is required for the operation of the energy storage cell. The electrode/separator arrangement has a layer structure with a sequence of cathode layers and anode layers. Opposite cathode and anode layers there are in each case separated from one another by a separator layer which is in of a porous form. The electrode/separator arrangement has an arrangement surface.

Abstract: A separator/current collector unit for a galvanic cell, in particular for a lithium-ion cell, is provided. The separator/current collector unit has a separator and a number N?1 of electrically conductive current collectors, each of which is arranged on the surface of the separator and is connected to same in order to form a unit, in the process forming a respective boundary surface together with the surface of the separator. Each of the current collectors has a porous material for receiving an electrolyte such that the separator/current collector unit conducts ions through the at least one boundary surface when the porous material has received electrolytes. A galvanic cell is also provided having a separator/current collector unit. Also, a battery is provided made of multiple galvanic cells.

Abstract: A lithium cell includes a negative electrode and a positive electrode. In order to increase the safety and service life of the cell, the cell also includes at least one porous protective layer arranged between the negative electrode and the positive electrode. The protective layer includes at least one alkaline-earth metal carboxylate.

Abstract: A composite separator is provided which includes a polymer membrane, a binder, a solid inorganic lithium-ion conductor and a liquid electrolyte. The solid inorganic lithium-ion conductor is present in the composite separator in a higher volume and weight proportion than the liquid electrolyte. A method for forming the composite separator is also provided, and a lithium-ion battery is provided which includes a composite separator having a polymer membrane, a binder, a solid inorganic lithium-ion conductor and a liquid electrolyte.

Abstract: A composite cathode is provided which includes a collector, an active cathode material, a binder, a solid inorganic lithium-ion conductor and a liquid electrolyte. The solid inorganic lithium ion conductor is present in the composite cathode in a higher volume and weight proportion than the liquid electrolyte. A method for forming the composite cathode is also provided, and a lithium ion battery is provided which includes a composite cathode having a collector, an active cathode material, a binder, a solid inorganic lithium ion conductor and a liquid electrolyte.

Abstract: A composite anode is provided which includes a collector, an active anode material, a binder, a solid inorganic lithium-ion conductor and a liquid electrolyte. The solid inorganic lithium ion conductor is present in the composite anode in a higher volume and weight proportion than the liquid electrolyte. A method for forming the composite anode is also provided, and a lithium ion battery is provided which includes a composite anode having a collector, an active anode material, a binder, a solid inorganic lithium ion conductor and a liquid electrolyte.

Abstract: A cathode in a state prior to a first charging process is provided having an active cathode material and lithium peroxide. A lithium ion battery or an electrochemical cell includes the same cathode. A method is also provided for forming a lithium ion battery, and a lithium ion battery is provided which includes a cathode having an active cathode material, a separator, an anode having an active anode material, and an electrolyte, wherein after a formed cell is fully discharged, the active cathode material holds the same lithium content as before the formation process.

Abstract: An all-solid-state cell, which includes a lithium-containing anode, a cathode and a lithium ion-conducting solid-state electrolyte separator situated between the anode and the cathode. To improve the safety and cycle stability of the cell, the cathode includes a composite material including at least one lithium titanate and at least one lithium ion-conducting solid-state electrolyte. Furthermore, the invention relates to a corresponding all-solid-state battery and a mobile or stationary system equipped with it.