Battery Module Cooling Wall Lattice Structure

Solution Overview

Problem

Large capacity rechargeable battery modules face issues with heat management, leading to temperature deviations, reduced lifespan, and potential explosions due to inadequate heat emission, as well as decreased performance at low temperatures due to lowered ion conductivity.

Innovation Solution

A battery module design featuring a cooling wall with interconnected first and second wall bodies forming a lattice structure, incorporating a circulation pump and using cooling water as a coolant to efficiently manage heat, along with a heating base to maintain optimal temperatures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If multiple rechargeable batteries are connected to form a large capacity battery module, then the electric power output is improved, but heat emission becomes inadequate leading to temperature deviation

Engineering Contradiction:

Improveelectric power outputVSAvoidtemperature uniformity

Core Design Contradiction:

PowerVSTemperature

Solution Approach 1:

The battery module is divided into multiple battery columns with cooling walls inserted between them. Each cooling wall independently manages heat from adjacent batteries, enabling segmented heat emission control. This segmentation allows each battery to be cooled effectively while maintaining overall module power output.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A cooling wall is introduced as an intermediary component between adjacent rechargeable batteries. This cooling wall includes flow paths that allow coolant to circulate, acting as a mediator to transfer heat from the batteries to the coolant, thereby maintaining temperature uniformity across the battery module.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Temperature

If cooling structure is added to manage heat, then temperature uniformity is improved, but device complexity increases

Engineering Contradiction:

Improvetemperature uniformityVSAvoidcooling structure complexity

Core Design Contradiction:

TemperatureVSDevice complexity

Solution Approach 1:

The cooling wall serves multiple functions simultaneously: it acts as a thermal management component with flow paths for coolant circulation, provides structural support between battery columns, and maintains spacing between batteries. This multi-functionality reduces the need for separate cooling components, thereby limiting complexity increase.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The cooling structure is merged with the battery module's structural framework. The cooling walls are integrated between battery columns rather than being separate add-on components, combining thermal management functions with the mechanical support structure of the battery module.

Inventive Principle:

Principle #5Merging (Combining)

3Reliability

If temperature is not controlled, then battery lifespan is shortened due to abnormal reactions, but adding cooling system increases manufacturing complexity

Engineering Contradiction:

Improvebattery lifespanVSAvoidmanufacturing simplicity

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The battery module is divided into multiple battery columns with cooling walls inserted between them. Each cooling wall independently manages heat from adjacent batteries, enabling segmented heat emission control. This segmentation allows each battery to be cooled effectively while maintaining overall module power output.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A cooling wall is introduced as an intermediary component between adjacent rechargeable batteries. This cooling wall includes flow paths that allow coolant to circulate, acting as a mediator to transfer heat from the batteries to the coolant, thereby maintaining temperature uniformity across the battery module.

Inventive Principle:

Principle #24Intermediary (Mediator)

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

The solution effectively cools rechargeable batteries, maximizes cooling efficiency, and prevents deterioration of charge and discharge efficiency at low temperatures, ensuring reliable performance and extended lifespan by maintaining consistent temperatures.

Implementation Method 1

a cooling wall that is installed between the rechargeable batteries to cool the rechargeable batteries

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

a circulation pump that transfers the coolant

Methodology Applied

Scientific EffectPumping: Pump

Implementation Method 3

a heating base that has a groove for inserting the rechargeable batteries and that heats the rechargeable batteries

Methodology Applied

Scientific EffectHeating: Heating

Data Source

PatentUS8871371B2Battery module

Publication Date: 2014.10.28 SAMSUNG SDI CO LTD

AI summary

A battery module that has improved cooling efficiency includes a plurality of rechargeable batteries and a cooling wall that is installed between the rechargeable batteries to cool the rechargeable batteries, wherein the cooling wall includes first wall bodies that are connected in a first direction and second wall bodies that are connected in a second direction intersecting the first direction, flow paths in which a coolant moves are formed within the first wall bodies and the second wall bodies, and the flow path of the first wall bodies is communicated via the flow path of the second wall bodies.