Robert Boschgmbh

Harald Drings

Rene Deponte

Oliver Gerundt

Markus Feigl

Anselm Berg

Calin Iulius Wurm

Ionut Marian Lica

Michael Raedler

Seyed Mohammad Seyed Abbassi

Thomas Klemen

Rene Hornung

A cell module for lithium-ion batteries includes at least two lithium-ion cells, in particular lithium-ion battery cells, a cell module housing that has at least one lateral wall, and at least one electrical insulation between the cells. The electrical insulation is configured in one piece with the cell module housing.

Insulating of adjacent lithium-ion batteries by complete overmoulding/pouring of containers in a device

The invention relates to a cell coil () for a lithium-ion battery, comprising at least two sub-cells (), which are wound in a space-saving manner and are thermally coupled to each other. According to the invention, the at least two sub-cells () are electrically connected in parallel in normal operation, and, in the event of a fault, in particular in the event of an internal short circuit in at least one defective sub-cell (), at least one defective sub-cell () can be electrically separated from the at least one intact sub-cell (). Because of the at least one defective sub-cell () that can be immediately electrically separated from the intact sub-cells () by means of an electronic monitoring device () in the 'event of a fault', a high level of robustness of the cell coil () in respect of internal short circuits is achieved. Among other things, the intact sub-cells () act, because of the thermal coupling between the sub-cells (), as a damage-reducing heat sink for the waste heat that is released during the fast discharge of the affected defective sub-cell () generally occurring in the event of a short circuit.

Cell coil for a lithium-ion accumulator

Growing community of inventors

Stuttgart, Germany

Harald Drings