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Battery module comprising a battery cell stack made of at least two battery cells having passive climate control, and motor vehicle

A battery module and battery technology, applied in electrical components, secondary batteries, circuits, etc., can solve the problems of small thermal conductivity of PCM, and achieve the effect of reliable transformation and maximization of contact surface.

Inactive Publication Date: 2014-03-05
ROBERT BOSCH GMBH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Here, a disadvantage in the case of rapid heat absorption and ou

Method used

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  • Battery module comprising a battery cell stack made of at least two battery cells having passive climate control, and motor vehicle
  • Battery module comprising a battery cell stack made of at least two battery cells having passive climate control, and motor vehicle
  • Battery module comprising a battery cell stack made of at least two battery cells having passive climate control, and motor vehicle

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Example Embodiment

[0034] figure 1 A battery cell stack 10 for a battery module is shown, which has battery cells 11, cells 12 containing PCM are arranged between the battery cells 11, and there is also a cell 12 containing PCM at each of the two ends of the battery cell stack 10 , so that each battery cell 11 is contacted on two opposite sides by a cell 12 containing a PCM. In addition, a pressure plate 13 is provided at each of the two ends of the battery cell stack 10 so that the battery cell stack 10 can be pressed down by a suitable device - not shown here - especially in the case of a configuration as a lithium-ion battery below is necessary. The battery cell 11 and the cell 12 containing the PCM each have housings 14 , 15 made of a thermally conductive material. A thermal structure 16 is provided inside the cell containing the PCM, in which the PCM 17 is embedded.

[0035] on the basis of figure 2 Four different embodiments a, b, c, d of cells 12 containing PCM are shown within the b...

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PUM

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Abstract

The invention relates to a battery module comprising a battery cell stack (10) made of at least two battery cells (11), wherein each battery cell (11) is contacted by at least one PCM-containing cell (12) that is inserted into the battery cell stack (10). Thus, the thermal path length between each PCM molecule and the battery is very short, whereby an improved passive climate control of the battery cells is achieved. In addition, the invention relates to a design of the battery module as a rechargeable lithium-ion battery and to a motor vehicle.

Description

technical field [0001] The invention relates to a battery module having a battery cell stack consisting of at least two battery cells and to a vehicle. Background technique [0002] Depending on the power requirement, the battery modules, in particular lithium-ion batteries or batteries, must only be operated within a defined temperature range for continued reliable and economical operation. Depending on the composition of the lithium-ion battery, an optimum operating temperature is given in the range between 30° C. and 40° C., taking into account efficiency and aging as slowly as possible. [0003] To set an optimum operating temperature, for example in the case of lithium-ion batteries used in vehicles, cooling and refrigeration circuits are often used in order to cool the battery cells which heat up during operation. For this purpose, the battery cells are pressed against a cooling or cooling plate through which heat can be dissipated. Alternatively, cooling or heating ...

Claims

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Application Information

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IPC IPC(8): H01M10/617H01M10/625H01M10/6551
CPCY02E60/12H01M10/5004H01M10/5089H01M10/5055H01M10/5016H01M10/5032H01M10/5079H01M10/613H01M10/625H01M10/647H01M10/6555H01M10/6569H01M10/659Y02E60/10
Inventor A·德尔
Owner ROBERT BOSCH GMBH
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