Evonik Degussa Gmbh

Degussa Aktiengesellschaft

Sven Augustin

Volker Hennige

Christian Hying

Gerhard Hoerpel

Gerhard Hörpel

Andreas Gutsch

Carsten Jost

Klaus Hedrich

Uwe Paulmann

Guenter Eichinger

Andreas Fuchs

Chistian Hying

The invention relates to a separator filled with an electrolyte composition. The separator has a ceramic surface and the electrolyte composition comprises an ionic fluid. Filling with the electrolyte composition can take place, for example, by inserting the separator into a battery, e.g. into a lithium ion battery, which is filled with a corresponding electrolyte composition.

Use of a ceramic separator in lithium ion batteries, comprising an electrolyte containing ionic fluids

The invention relates to a battery pack () for electric vehicles or vehicles with an electric hybrid drive. The battery pack () according to the invention comprises a battery housing () and battery cells, which are arranged within the battery housing (), are self-contained and are electrically connected to one another in order to achieve a desired terminal voltage. A plurality of battery cells are in each case arranged at a distance from one another in a fastening frame () and in each case form cell modules (). The cell modules () are in each case arranged on fastening elements, which pass through the battery housing (), the fastening elements, being in the form of spacers between the cell modules () and, with the battery housing (), forming a bearing unit.

Battery pack

Separator-electrode assemblies (SEAs) comprise a porous electrode useful as a positive or negative electrode, in a lithium battery and a separator layer applied to this electrode, the separator layer being an inorganic separator layer comprising at least two fractions of metal oxide particles different from each other in their average particle size and/or in the metal, and the electrode having active mass particles are bonded together and to the current collector by inorganic adhesive; and a process for their production.

Inorganic separator-electrode-unit for lithium-ion batteries, method for the production thereof and use thereof in lithium batteries

A process for producing a separator-electrode assemblies (SEAs) which comprises a porous electrode useful as a positive or negative electrode in a lithium battery and a separator layer applied to this electrode wherein the separator layer being an inorganic separator layer comprising at least two fractions of metal oxide particles different from each other in their average particle size and/or in the metal, and the electrode having active mass particles that are bonded together and to a current collector by an inorganic adhesive; and the separator-electrode assembly comprises no organic polymer binder. The process comprising form the porous electrode by applying a suspension comprising active mass particles suspended in a sol or a dispersion of nanoscale active mass particles in a solvent and solidifying the suspension.

The present invention relates to separator-electrode units for lithium batteries and also to a process for their production. The separator-electrode units comprise a porous electrode which is useful as a positive electrode (cathode) or negative electrode (anode) in a lithium battery and a separator layer applied to this electrode and are characterized in that the separator-electrode units comprise a purely inorganic separator layer which comprises at least two fractions of metal oxide particles which differ from each other in their average particle size and/or in the metal. More particularly, the separator layer comprises metal oxide particles having an average particle size (D) which is greater than the average pore size (d) of the pores of the porous positive electrode that are bonded together by metal oxide particles having a particle size (D) which is smaller than the pores of the porous electrode. The separator-electrode unit of the invention has the advantage that it is simple to manufacture as one component and, since the step of laminating the separator onto the electrode can be omitted, that it can comprise a large variation of materials. In addition, a separator-electrode unit according to the invention possesses excellent mechanical stability and a very low separator thickness, which is why it can even be used in lithium high energy batteries.

Separator-electrode unit for lithium-ion batteries, method for the production and use thereof in lithium batteries

Separator-electrode assemblies (SEAs) comprising a porous electrode useful as a positive or negative electrode in a lithium battery and a separator layer applied to this electrode, the separator layer being an inorganic separator layer comprising at least two fractions of metal oxide particles different from each other in their average particle size and/or in the metal, and the electrode having active mass particles that are bonded together and to a current collector by an inorganic adhesive; and a process for their production.

The separator-electrode units comprise a porous electrode which is useful as a positive electrode (cathode) or negative electrode (anode) in a lithium battery and a separator layer applied to this electrode and are characterized in that the separator-electrode units comprise a purely inorganic separator layer which comprises at least two fractions of metal oxide particles which differ from each other in their average particle size and/or in the metal. More particularly, the separator layer comprises metal oxide particles having an average particle size (D) which is greater than the average pore size (d) of the pores of the porous positive electrode that are bonded together by metal oxide particles having a particle size (D) which is smaller than the pores of the porous electrode.

An electrochemical capacitor including a separating layer on a support. The separating layer represents a porous inorganic, electrically non-conducting coating which is provided with particles of compounds of the elements Al, Si, and/or Zr, the particles being bonded to each other and to the support by an inorganic adhesive. The support can represent a porous electrode or a porous and planar substrate that is provided with polymer fibers.

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Ober-Ramstadt, Germany

Sven Augustin