Robert Boschgmbh

Robert Bosch Battery Systems Gmbh

Lisa Lorenz

Chrysanthos Tzivanopoulos

Sven Bergmann

Walter Jasch

Ruben Jung

Jens Boehme

Sarmimala Hore

Andreas Ruehle

Mehul Botadra

David Naughton

Matthias Stein

Achim Schmidt

Joerg Schneider

Christian Pankiewitz

Stefan Baumann

Eduard Reimer

David Nietling

Carsten Mueller

Andreas Otto

Patrick Kaupp

Kyle Schultz

Henrik Wolfgang Behm

Kuen Cheuk Leung

Karsten Thoelmann

Alexander Foitzik

Sinasi Temiz

Johannes Federle

Sandro Rank

Stefan Grun

A battery pack includes a housing and electrochemical cells disposed in the housing. The housing includes a container and a lid that closes an open end of the container. The container has a base, an outer wall the surrounds the base, and a first and a second inner wall disposed inside the outer wall. The first inner wall extends between, and is fixed to, a first portion and a third portion of the outer wall, and is spaced apart from a second portion and a fourth portion of the outer wall. The second inner wall extends between the first portion and the third portion, and is disposed between the first inner wall and the fourth portion. The second inner wall is movable relative to the outer wall such that spacing of the second inner wall from the first inner wall can be changed.

Battery pack

A battery module having a battery module housing () which has a multiplicity of housing walls () which form an interior space (), wherein a multiplicity of battery cells () is arranged in the interior space (), and the battery module housing () furthermore has a cooling element receptacle (), wherein a cooling element () of the battery module () is arranged in the cooling element receptacle () of the battery module housing ().

Battery module, method for the production thereof, and battery

The invention relates to a current sensor comprising an electric conductor (), through which a first current (I) can flow parallel to a first direction (R) and which comprises three regions () immediately following on from each other in the first direction (R). A middle region () of the three regions () comprises a conductor cross-sectional area that is smaller than a conductor cross-sectional area of each of the two outer regions () of the three regions (). A voltage sensor of the current sensor is designed to measure a first voltage between the two terminals () thereof. The first voltage is the same as a voltage applied to a measuring region () at least partially coinciding with the middle region (). An evaluation unit of the current sensor is designed to determine an existing current value of the first current (I) in accordance with an existing voltage value of the first voltage and a pre-defined resistance value of a first resistance of the measuring region ().

Current sensor and battery comprising such a current sensor

The invention relates to a housing () for accommodating a plurality of battery cells (), in particular lithium-ion battery cells, wherein the housing (), in particular a plastic housing, comprises a cooling device with an inlet point () and an outlet point () for an air stream () for cooling the battery cells (). In addition, the housing () is designed as a single piece together with the cooling device integrated in the housing (), and the cooling device additionally has spacers () for arranging all accommodated battery cells () with an intermediate space () for guiding air between the battery cells (), by which means an air channel () is provided for the air stream () between the battery cells (). The invention further relates to a battery pack () and to a motor vehicle comprising such a battery pack ().

Housing for accommodation of a plurality of battery cells having a cooling device integrated in the housing

The invention relates to a temperature sensor () for measuring a temperature of a battery system () for storing electrical energy and also for supplying an electric motor of a motor vehicle with electrical energy. The temperature sensor () has a sensor head () and connection wires () electrically coupled to the sensor head. At least one of the connection wires () is at least partially formed as a spring element () or forms at least part of a spring element (), wherein the spring element () is formed as a helical spring or as twisted. The invention further relates to a battery system () with at least one temperature sensor () for measuring a temperature of at least one battery cell (), wherein the temperature sensor () has at least one spring element (), which is mechanically attached to a sensor head () of the temperature sensor () and is fastened to the battery management system () in such a way that the sensor head () is pressed by the spring element () onto a measuring point () on a battery unit () of the battery system (). The invention also relates to a method for fitting such a battery system ().

Temperature sensor, battery system and method for fitting a battery system

The invention relates to a method for measuring an electric current of a battery () with multiple battery modules (), having the step of measuring a temperature related to the battery module (). According to the method, the temperature of a connector is first determined for at least one battery module () using the measured temperature and a temperature model, and the electric resistance of the connector is determined using a resistance model and the temperature of the connector. The electric voltage which drops at the connector is then measured, and the electric current flowing through the connector is calculated from the voltage. The invention additionally relates to a corresponding device and to a battery comprising such a device.

Method and device for measuring the electric current of a battery with multiple battery modules

A battery module () having a number of electrically interconnected battery cells (), wherein the individual battery cells () are temperature-controlled by means of a temperature control fluid (). Between the battery cells (), there extends a duct system () through which the temperature control fluid () flows. The duct system () is separated completely from a degassing system () of the battery cells ().

Battery pack with air-type cooling

Growing community of inventors

Stuttgart, Germany

Lisa Lorenz