Battery pack with external cooling system interfaces

A battery pack and cooling plate technology, applied in battery pack components, batteries, secondary batteries, etc., can solve problems such as battery power and efficiency decline, and achieve the effect of reducing possibility and quantity

Inactive Publication Date: 2015-07-15
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At very low temperatures below about -5°C, the power and efficiency of the battery will drop significantly

Method used

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  • Battery pack with external cooling system interfaces
  • Battery pack with external cooling system interfaces
  • Battery pack with external cooling system interfaces

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] figure 1The battery pack 1 in comprises a housing 2 having an upper housing part 3 and a lower housing part 4, which are suitably joined at joint locations 19, for example by laser welding. Prior to assembly, a plurality of battery modules 5 are preferably arranged side by side (not shown) and one above the other in the housing 2 . The battery module 5 can be accommodated in figure 1 frame not shown.

[0035] The battery pack 1 here includes, for example, two battery modules 5 arranged one above the other, which each have a battery cell 6 and an electronics unit 7 , wherein the electronics unit 7 is arranged here, for example, above the battery cells 6 . The battery unit 6 generally comprises a plurality of interconnected battery cells, for example lithium-ion cells in the voltage range of 2.8 to 4.2V.

[0036] The electronics unit 7 includes module controllers which can have, for example, sensor controllers and associated cell sensors, wherein usually a plurality of...

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PUM

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Abstract

The invention relates to a battery pack (1), which comprises a plurality of battery modules (5) arranged in a same housing (2) with cooling device (8). All of the battery modules (8) comprise a plurality of interlinked single cell, wherein the cooling method (8) comprises at least one cooling plate (9) in the housing (2), and the plate is designed for cooling at least one battery module (5), wherein the cooling device (8) comprises at least one through element (10) which passes through the housing (2) and comprises a connector (11) on outside of the housing (2), whereby the the cooling agant is lead from the outside of the housing (2) to the cooling plate (9). The rule is set that at least one cooling plate (9) and at least one through element (10) is integrelly constructed with each other. The invention also relates to a moter vehicle comprising the above battery pack (1).

Description

technical field [0001] The invention relates to a battery pack having a plurality of battery modules arranged in the same housing, the battery modules each having a plurality of interconnected battery cells. Background technique [0002] Hybrid electric vehicles (HEV, Hybrid Electric Vehicle) and electric vehicles (EV, Electric Vehicle) require a battery system with sufficient energy and high power, so that the electric drive machine can output the desired driving power. Based on lithium-ion technology or lithium-polymer technology, a battery pack with sufficient energy and high power is usually used as an electrical energy store (EES). Typically such battery packs include about 100 battery cells. The battery capacity of a high-power battery cell is, for example, as high as 63 Ah. [0003] Due to the chemical conversion process, the lithium-ion battery cell and the lithium-polymer battery cell heat up primarily during the energy output. The more powerful the battery pack,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42H01M10/48H01M10/6554B60L50/64
CPCH01M2220/20H01M50/209B60L50/64H01M50/249H01M10/6554H01M10/425H01M10/625H01M10/647H01M10/6556H01M10/6557H01M10/613Y02E60/10Y02T10/70
Inventor T·科勒
Owner ROBERT BOSCH GMBH
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