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Battery module and method for monitoring a battery module

A battery pack and battery technology, which is applied to the temperature measurement of battery pack components, secondary batteries, motors, etc., can solve the problems of damage to battery pack cells, thermal runaway, accelerated battery pack battery aging, etc., and achieve accurate temperature measurement. Results, low cost, low cost to assemble

Active Publication Date: 2018-03-02
ROBERT BOSCH GMBH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the temperature of the battery cells is high, the aging of the battery cells is accelerated
Also, if the temperature in the battery cell is high enough, thermal runaway can occur, which can damage the battery cell

Method used

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  • Battery module and method for monitoring a battery module
  • Battery module and method for monitoring a battery module

Examples

Experimental program
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Embodiment Construction

[0034] figure 1 A schematic view of the battery cell 2 is shown. The battery cell 2 contains a casing 3 which has, for example, a prismatic shape. The battery cell 2 further includes an electrode assembly 10 arranged inside the case 3 . The case 3 is filled with a liquid electrolyte so that the electrode assembly 10 is impregnated with the electrolyte. The electrolyte is ionically conductive.

[0035] The electrode assembly 10 includes an anode 11 , a cathode 12 and a separator 18 arranged between the anode 11 and the cathode 12 . Furthermore, the battery cell 2 includes a negative terminal 15 and a positive terminal 16 . The terminals 15 , 16 are used for charging and discharging the battery cells 2 and are mounted on the housing 3 .

[0036]The anode 11 includes an anode active material 21 formed as a flat foil and an anode current collector 23 formed as a flat foil. The anode active material 21 and the anode current collector 23 are attached to each other. The anode ...

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PUM

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Abstract

A battery module and method for monitoring a battery module are disclosed. The invention refers to a battery module, comprising a plurality of battery cells and a plurality of temperature sensors. Thereby, several temperature sensors are connected electrically in a first sensor unit, and several temperature sensors are connected electrically in a second sensor unit, and a resistance of the first sensor unit is measurable separately from a resistance of the second sensor unit. The invention also refers to a method for monitoring a battery module, comprising a plurality of battery cells and a plurality of temperature sensors, wherein several temperature sensors are connected electrically in a first sensor unit, and several temperature sensors are connected electrically in a second sensor unit, whereat a resistance of the first sensor unit is measured separately from a resistance of the second sensor unit.

Description

technical field [0001] The present invention relates to a battery module including a plurality of battery cells and a plurality of temperature sensors. The invention also relates to a method for monitoring a battery module comprising a plurality of battery cells and a plurality of temperature sensors. Background technique [0002] Electrical energy can be stored by means of a battery pack. Batteries convert chemical energy into electrical energy. In particular, rechargeable batteries are known that can be charged and discharged several times. A battery or battery module includes several battery cells electrically connected in series or in parallel. [0003] Especially lithium-ion battery cells are used in rechargeable batteries or battery systems. Li-ion battery cells have a relatively higher energy density. Lithium-ion battery cells are used, for example, in motor vehicles, in particular in electric vehicles (EV), in hybrid electric vehicles (HEV) and in plug-in hybrid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M10/0525H01M10/42H01M10/48H01M50/209H01M50/249
CPCH01M10/0525H01M10/425H01M10/486H01M10/482H01M50/209H01M50/249H01M2010/4278G01K3/14G01K7/24G01K1/026G01K2205/00Y02E60/10
Inventor C.瓦格纳D.B.格赖纳M.里德曼P.科恩R.哈芬布拉克
Owner ROBERT BOSCH GMBH