Battery Cell Assembly Layout for Capacity Reconfiguration and Cooling

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Solution Overview

Problem

Existing battery packs face difficulties in reconfiguring their overall capacity in response to changing requirements, and they struggle with inefficient cooling of battery cell assemblies.

Innovation Solution

A battery pack design that allows for adjustable installation of battery cell assemblies within a frame, featuring a channel part with insertion holes and a connector system, and includes a cover part with a cooling member to enhance cooling efficiency by forming a flow path for coolant.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If battery cells are connected and formed as a unibody battery module, then the structural integrity and manufacturing simplicity are improved, but the ability to reconfigure the overall capacity in response to changing requirements deteriorates

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidreconfiguration capability
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The battery pack is divided into multiple independent battery cell assemblies, each with its own cover part and cooling member. These assemblies can be independently installed or removed from the frame, allowing the overall capacity to be reconfigured by adjusting the number of assemblies without requiring complex disassembly of a unibody structure.

Inventive Principle:
Principle #1Segmentation

2Ease of manufacture

If a conventional battery module design is used, then the manufacturing process is simplified, but the cooling efficiency of the battery cell assembly deteriorates

Engineering Contradiction:
Improvemanufacturing process simplicityVSAvoidcooling efficiency
Core Design Contradiction:
Ease of manufactureVSTemperature

Solution Approach 1:

The cooling member is extracted from the traditional battery module structure and integrated into the cover part of each battery cell assembly. This allows the cooling function to be independently optimized for each assembly, with coolant flow paths directly contacting the battery cells, thereby improving cooling efficiency while maintaining manufacturing simplicity.

Inventive Principle:
Principle #2Taking out (Extraction)

3Stability of the object's composition

If the number of battery cell assemblies is fixed in the battery pack, then the structural stability is improved, but the ability to optimize performance based on changing requirements deteriorates

Engineering Contradiction:
Improvestructural stabilityVSAvoidcapacity adjustment capability
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The battery pack design allows for dynamic adjustment of the number of battery cell assemblies installed in the frame. The frame includes multiple insertion holes that can accommodate different numbers of assemblies, enabling the system to adapt its capacity while maintaining structural stability through the standardized frame and connector design.

Inventive Principle:
Principle #15Dynamics

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

Enables flexible capacity adjustment and improved cooling efficiency of battery cell assemblies, allowing for optimized performance based on changing requirements while effectively managing heat generation.

Implementation Method 1

a cooling member forming at least a portion of an outer surface of the second cover

Methodology Applied
Scientific EffectHeat conduction: Conduction (thermal)

Implementation Method 2

a channel part configured to extend in a front-rear direction and form an inner space

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentUS20240243385A1Battery cell assembly and battery pack including the same
Publication Date: 2024.07.18 SK ON CO LTD
  • US20240243385A1 patent drawing
  • US20240243385A1 patent drawing
  • US20240243385A1 patent drawing

AI summary

The disclosed technology relates to a battery cell assembly and a battery pack including the same. More particularly, the disclosed technology relates to a battery cell assembly with improved cooling efficiency and a battery pack that can control the number of battery cell assemblies installed in the battery pack and increase cooling effect of the battery cell assembly.