Battery Module Heat Dissipation via Integrated Frame

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Solution Overview

Problem

Existing battery modules face challenges in efficiently dissipating heat generated during charge and discharge, leading to potential overheating, deterioration, and increased size due to the need for coolant channels and complex cooling structures, which complicates design and reduces mechanical strength.

Innovation Solution

A battery module with a frame structure and heat dissipation support member for thermal conduction, where battery cells are stacked laterally without exposed terminals, and a metal cover with high thermal conductivity is used to absorb and dissipate heat efficiently, minimizing thermal conduction resistance and allowing for compact design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If coolant channels and complex cooling structures are added to dissipate heat, then heat dissipation efficiency is improved, but device complexity increases and mechanical strength decreases

Engineering Contradiction:

Improveheat dissipation efficiencyVSAvoidcooling structure complexity

Core Design Contradiction:

TemperatureVSDevice complexity

Solution Approach 1:

The patent combines the cooling structure with the battery module housing into a unified integrated design. The housing serves dual functions as both structural enclosure and heat dissipation pathway, eliminating the need for separate complex cooling channels and components while maintaining effective heat removal from battery cells

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The housing is designed to perform multiple functions simultaneously: providing mechanical protection for battery cells, serving as a thermal management system through integrated heat dissipation pathways, and maintaining structural integrity. This multi-functionality reduces overall device complexity while achieving effective cooling

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Volume of moving object

If battery cells are stacked tightly to reduce size, then volume is reduced, but heat dissipation becomes less efficient

Engineering Contradiction:

Improvebattery module sizeVSAvoidheat dissipation efficiency

Core Design Contradiction:

Volume of moving objectVSTemperature

Solution Approach 1:

Inventive Principle:

Principle #5Merging (Combining)

3Volume of moving object

If a compact design is used to minimize size, then volume is reduced, but heat dissipation efficiency decreases

Engineering Contradiction:

Improvebattery module sizeVSAvoidheat dissipation efficiency

Core Design Contradiction:

Volume of moving objectVSTemperature

Solution Approach 1:

The patent utilizes the housing's external surfaces and three-dimensional structure as heat dissipation pathways. By extending thermal management functions into additional spatial dimensions through the housing structure rather than relying solely on internal channels, the design achieves effective heat dissipation in a compact form factor

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This configuration enhances heat dissipation efficiency, reduces temperature deviations, and maintains a compact size while ensuring stability and longevity of the battery module.

Implementation Method 1

a heat dissipation support member to dissipate heat from the battery cells through thermal conduction based on direct or indirect contact with the battery cells

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP2763214B1Battery module

Publication Date: 2019.04.10 LG CHEM LTD

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AI summary

Disclosed herein is a battery module including chargeable and dischargeable battery cells mounted in a module case, wherein the battery cells are mounted in the module case in a state in which the battery cells are stacked in a lateral direction in which electrode terminals are not located, the module case is configured to have a frame structure open at one or more surfaces thereof, the module case including a receiving part to mount the battery cells, and a heat dissipation support member to dissipate heat from the battery cells through thermal conduction based on direct or indirect contact with the battery cells is mounted in the receiving part, in which the battery cells are mounted.