Secondary Battery Module With Interposed Air Guide Blocks

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Solution Overview

Problem

Conventional secondary battery modules face challenges in manufacturing flexibility due to fixed electrode terminals, inefficient heat dissipation, and instability under external impact, limiting their adaptability to varying electricity requirements and performance in industrial facilities and electric vehicles.

Innovation Solution

A secondary battery module design featuring interposed air guide blocks between leveled surfaces and fixing blocks between protruded surfaces of neighboring cells, using conductive and insulating connection members as bolts and nuts for terminal interconnection, and fasteners for secure fixation, allowing for rapid manufacturing, efficient heat dissipation, and enhanced stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If electrode terminals are fixed by welding with leads, then electrical connection is achieved, but manufacturing flexibility and adaptability to varying electricity requirements deteriorate

Engineering Contradiction:
Improveadaptability to varying electricity requirementsVSAvoidmanufacturing convenience
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The electrode terminal connection is segmented into modular components: battery cell terminals, connection members with contact portions, and insulating members. This segmentation allows flexible assembly and disassembly to accommodate varying electricity requirements while maintaining manufacturing convenience through standardized modular components.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connection system transitions from a fixed welded state to a dynamic, reconfigurable state. Connection members can be selectively connected or disconnected based on electricity requirements, enabling the battery module to adapt its configuration dynamically without compromising manufacturing ease through the use of simple connection mechanisms.

Inventive Principle:
Principle #15Dynamics

2Temperature

If plate-shaped supporters contact battery cells directly, then structural support is provided, but heat dissipation efficiency deteriorates

Engineering Contradiction:
Improveheat dissipation efficiencyVSAvoidstructural support
Core Design Contradiction:
TemperatureVSStrength

Solution Approach 1:

Air guide members are introduced as intermediary components between the plate-shaped supporters and battery cells. These air guides create airflow channels that facilitate heat dissipation while the plate-shaped supporters maintain their structural support function, resolving the contradiction between thermal management and mechanical support.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The plate-shaped supporters are designed with localized features: air guide members are positioned at specific locations to create airflow channels where heat dissipation is needed, while other areas maintain direct contact for structural support. This local differentiation allows simultaneous optimization of both heat dissipation and structural strength.

Inventive Principle:
Principle #3Local quality

3Stability of the object's composition

If adhesive force from plate-shaped supporters is used for fixation, then assembly is simplified, but stability under external impact deteriorates

Engineering Contradiction:
Improvestability under external impactVSAvoidfixation mechanism complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The fixation system uses a composite approach combining adhesive material with mechanical fastening elements (fasteners that engage with through-holes). This composite fixation mechanism provides both the simplicity of adhesive application and the impact resistance of mechanical interlocking, maintaining stability under external impact while avoiding overly complex fixation mechanisms.

Inventive Principle:
Principle #40Composite materials

4Productivity

If battery cells are arranged in a line with direct contact, then manufacturing is simplified, but heat dissipation and impact resistance deteriorate

Engineering Contradiction:
Improvemanufacturing efficiencyVSAvoidheat dissipation
Core Design Contradiction:
ProductivityVSTemperature

Solution Approach 1:

Air guide members are introduced as intermediary components between adjacent battery cells. These air guides maintain the simplified linear arrangement for easy manufacturing while creating airflow channels that enable effective heat dissipation, and provide structural spacing that improves impact resistance without complicating the overall linear configuration.

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

Enables convenient and rapid manufacturing of battery modules with detachable terminals, effective heat dissipation, and stable fixation even under impact, accommodating varying electricity demands and improving performance in industrial and vehicular applications.

Implementation Method 1

an air guide block is interposed between leveled surfaces of the neighboring battery cells... for discharging the heat generated from the battery module to the outside

Methodology Applied
Scientific EffectAir flow: Convection

Implementation Method 2

conductive connection members... for interconnecting electrode terminals of the battery cells so that the corresponding battery cell forms one series circuit with other battery cells

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Implementation Method 3

a plurality of fasteners for integrally fixing the battery cells after the battery cells contact each other by the fixing block and the air guide block

Methodology Applied
Scientific EffectMechanical fastening: Mechanical Fastener

Data Source

PatentUS7758999B2Secondary battery module
Publication Date: 2010.07.20 LG ENERGY SOLUTION LTD
  • US7758999B2 patent drawing
  • US7758999B2 patent drawing
  • US7758999B2 patent drawing

AI summary

A secondary battery module comprises at least two battery cells laminated to a designated depth, in which an air guide block is interposed between leveled surfaces of the neighboring battery cells and a fixing block is interposed between protruded surfaces of the neighboring battery cells, the air guide blocks and the fixing blocks are fixed to each other using fasteners, and corresponding electrode terminals of the neighboring battery cells are interconnected in series by conductive and insulating connection members serving as bolts and nuts, thereby being conveniently installed in various industrial facilities and electric vehicles.