Bayerische Motoren Werke Aktiengesellschaft

Simon Nuernberger

Jan Philipp Schmidt

Christoph Bauer

Thomas Hammerschmidt

Dave Andre

Philipp Oberhumer

Thomas Woehrle

Sebastian Scharner

Jose Lopez De Arroyabe

Nikolaos Tsiouvaras

Boris Zuev

Tobias Zeilinger

Barbara Stiaszny

Jakub Reiter

Jan-Oliver Roth

Carsten Spengler

Saskia Schneider

Dennis Schuenemann

Sandra Zugmann

Werner Seliger

Christoph Stinner

Korbinian Antwerpen

Martin Mittermaier

The storage module for an energy store of a motor vehicle includes multiple storage cells. The multiple storage cells are wired together according to a circuit topology and are electrically connected together for storing electric energy. Each storage cell has at least one electric heating element for heating the each storage cell. The heating elements are electrically connected to one another according to the same circuit topology.

Storage module for an energy store of a motor vehicle, and energy store

A method is provided for operating a lithium ion battery having at least one lithium ion cell and a heating device, the method includes a step of operating the lithium ion battery in a temperature range between 5 and 90° C. The heating device is designed to operate the lithium ion battery in a temperature range between 5 and 90° C. The lithium ion cell includes an anode, a cathode, a separator, a current collector and an electrolyte. The electrolyte can contain LiBOB as the conducting salt and at least one solvent selected from propylene carbonate and ethylene carbonate; or having LiFSI and/or LiDFOB as the conducting salt and at least one solvent selected from glycol ether and/or DMC; or having LiFSI and/or LiTFSI and/or LiDFOB and/or LiTDI as the conducting salt and at least one solvent selected from imidazolium compounds, pyrrolidinium compounds and piperidinium compounds.

Method for operating a lithium ion battery, lithium ion battery, and motor vehicle

A multi-voltage storage system for an at least partly electrically driven vehicle includes a first storage module and a second storage module having an identical rated voltage for storing electrical energy, wherein on-board consumers are connected to the second storage module at least with priority during a charging process, a heating apparatus for heating the storage modules, a switch unit which is designed to connect the first storage module and the second storage module in series for a charging process and in parallel for driving the vehicle, and a control unit, which is firstly designed to control the switch unit before and/or during a charging process such that the parallel connection of the first storage module and the second storage module is eliminated, and which is secondly designed, after elimination of the parallel connection, to activate the heating apparatus before and/or during the charging process.

Multi-voltage storage system for an at least partly electrically driven vehicle

A method is provided for impedance-controlled fast charging of a stored electrical energy source of a working device, in particular of a stored energy source in a vehicle. In the method: a variable characteristic of an impedance of the stored energy source is detected; a present charging current for charging the stored electrical energy source is set as a function of the variable characteristic of the impedance; the present charging current is temporarily reduced with a steep edge by temporarily connecting a resistive load to the stored energy source and feeding the load using the stored energy source; and a voltage response of the stored energy source to the steep edge is detected as the variable characteristic of the impedance of the stored energy source and is used as the basis for setting the present charging current.

Method for impedance-controlled fast charging, control unit for a charging system, stored energy source, and working device

An electrical energy storage unit for a motor vehicle, having at least one storage unit cell designed to store electrical energy, which storage unit cell has a cell housing in which an electrolyte and an electrode device are arranged, and having a temperature control device that has at least one temperature control channel arranged outside the cell housing, which temperature control channel is able to be flowed through by a temperature control fluid in order to control the temperature of the storage unit cell. At least one heating device is able to be supplied with the electrical energy stored in the storage unit cell and thereby able to be electrically operated. By way of the heating device, the storage unit cell is able to be heated, wherein the heating device is able to be operated without any damage only when the storage unit cell has a state of charge that is not more than 60% of the maximum state of charge of the storage unit cell.

Electrical energy storage unit for a motor vehicle, and method for operating such an electrical energy storage unit

A storage cell for an energy store includes a cell housing in which storage means for storing electric energy are received, at least one connection which is arranged outside of the cell housing and via which the electric energy stored by the storage means can be provided, and at least one electric heating element arranged within the cell housing for heating the storage cell. The cell housing has a connection region, in which the heating element within the cell housing is electrically connected to the cell housing. At least one connection device is provided, having at least one connection element that has a first connection part, which is electrically connected to the cell housing outside of the cell housing and is made of a first material, and a second connection part, which is electrically connected to the first connection part and is made of a second material that differs from the first material.

Storage cell for an energy store of a motor vehicle, and energy store for a motor vehicle

A heating device for a prismatic battery cell of a high-voltage battery of a motor vehicle includes two sheet-shaped heating elements to be arranged on two opposite lateral outer sides of a cell housing of the battery cell, and two connecting elements to be arranged on a housing cover of the cell housing. The connecting elements are electrically connected to terminals of the two heating elements. The connecting elements are flexibly formed, at least in certain regions, and as a result the heating elements are connected in a hinge-like manner. The heating device can be arranged by arranging the first heating element on the first lateral outer side of the cell housing, swinging the second heating element over the housing cover, and arranging the second heating element on the second lateral outer side on the cell housing.

Heating device for a prismatic battery cell of a high-voltage battery of a motor vehicle, battery cell, battery module, high-voltage battery and motor vehicle

A safety switch device connects a heating unit for at least one battery cell of a high-voltage battery of a motor vehicle to a power supply connection that provides a heating current for the heating unit. The device includes: a first controllable switching element arranged in a heating current transmission path, which is designed to receive a control signal supplied by a unit external to the high-voltage battery via a signal transmission path of the safety switch device and to generate heating current transmission between the heating unit and the power supply connection according to the received control signal; a separating unit arranged in the heating current transmission path, for interrupting the heating current transmission in the event of failure of the first switching element; and a transmission unit arranged in the signal transmission path, which is designed to transmit the control signal potential-free to the first switching element, for the galvanic separation of the high-voltage battery and the unit.

Safety switch device for a high-voltage battery of a motor vehicle, high-voltage battery, on-board power supply system and motor vehicle

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)&#x3e;N (B)&#x3e;N (C), N (D). A solid-state lithium-ion battery containing such sintered electrode is also provided.

Fiber-reinforced sintered electrode

A charging device for charging a motor vehicle includes an energy supply unit which is arranged externally in relation to the motor vehicle, and which is designed to provide electrical current for a solid-state gas battery of the motor vehicle. In addition, the charging device includes a gas supply unit which is arranged externally in relation to the motor vehicle and which is designed to provide gas for the solid-state gas battery of the motor vehicle. Furthermore, the charging device has at least one supply connection by which the energy supply unit can be coupled to the motor vehicle for the purposes of a charging process for supplying electrical current for the solid-state gas battery, and by which the gas supply unit can be coupled to the motor vehicle for the purposes of the charging process for supplying gas for the solid-state gas battery.

Charging device and system for charging a motor vehicle

An operating device for operating a motor vehicle has at least one solid-state gas battery that is designed to provide energy for an electric motor of the motor vehicle. In addition, the operating device has at least one high-pressure tank for receiving and storing gas for the solid-state gas battery. Furthermore, the operating device has at least one charging connection via which the solid-state gas battery can be coupled for the purposes of a charging process for receiving electrical current, and via which the high-pressure tank can be coupled for the purposes of the charging process for receiving gas.

Growing community of inventors

Bad Aibling, Germany

Simon Nuernberger