Barrier-Layer Battery Module Housing for Continuous Assembly

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Solution Overview

Problem

The existing production methods for energy storage modules are time-consuming and costly due to multiple independent production steps, leading to high costs for both the modules and systems.

Innovation Solution

A continuous production method for energy storage modules using a plastic housing with a barrier layer to prevent gas and liquid ingress/egress, integrating connecting elements for series connection of cells, and utilizing pre-shaped components for efficient assembly and space-saving design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple independent production steps are used to produce energy storage modules, then the production process allows for flexibility and quality control, but the production time and costs increase significantly

Engineering Contradiction:
Improveproduction quality controlVSAvoidproduction speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent combines multiple independent production steps into a single integrated continuous production process. The housing is formed as one piece with integrated barriers and sealing elements, and multiple cells are assembled simultaneously in a continuous flow rather than sequentially. This merging of steps directly resolves the contradiction by maintaining quality control through integrated design while dramatically increasing production speed.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent implements continuous production where cells are assembled and connected in an uninterrupted flow. The housing formation, cell placement, electrical connection, and sealing all occur in a continuous sequence without stopping between steps. This continuous action eliminates the time losses associated with multiple discrete steps while maintaining quality through consistent process parameters.

Inventive Principle:
Principle #20Continuity of useful action

2Reliability

If traditional welding connections are used to connect busbars to individual cells, then reliable electrical connection is achieved, but production complexity and costs increase

Engineering Contradiction:
Improveelectrical connection reliabilityVSAvoidproduction process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the complex welding operation from the production process and replaces it with a simpler mechanical connection system. The busbar is designed with integrated connection elements that mechanically engage with the cells, eliminating the need for welding while maintaining reliable electrical connection. This reduces both production complexity and costs.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the thermal-mechanical welding process with a purely mechanical connection system. The busbar incorporates mechanical connection elements that engage with corresponding features on the cells, providing both mechanical support and electrical connection without requiring welding equipment or processes.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Ease of manufacture

If plastic housing without barrier layer is used, then production costs and manufacturing simplicity are reduced, but gas and liquid permeability increases

Engineering Contradiction:
Improvehousing manufacturing simplicityVSAvoidgas and liquid permeability
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent uses composite construction for the housing, combining plastic material with integrated barrier layers. The barrier layers are incorporated directly into the housing structure during formation, creating a composite material system that provides both the manufacturing simplicity of plastic and the impermeability of barrier materials. This resolves the contradiction by achieving both ease of manufacture and protection against permeability.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent nests barrier layers within the housing structure itself. The barriers are integrated into the housing walls and sealing regions, with the plastic housing forming an outer shell that contains the barrier layers. This nested arrangement provides impermeability without requiring a separate outer housing, maintaining manufacturing simplicity.

Inventive Principle:
Principle #7Nested doll (Nesting)

4Adaptability or versatility

If modular assembly of multiple cells is used, then flexibility and maintenance are improved, but assembly time and connection complexity increase

Engineering Contradiction:
Improvemodule flexibilityVSAvoidassembly time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-assembling groups of cells into modules with integrated electrical connections and housing sections before final assembly. The busbars are pre-formed with connection elements, and cells are pre-positioned in sequences. This preliminary preparation reduces the time required for final assembly while maintaining modular flexibility.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent arranges cells in three-dimensional configurations within the housing, utilizing vertical and horizontal stacking patterns. This spatial arrangement allows multiple cells to be connected in parallel and series configurations simultaneously, reducing the number of connection steps required compared to linear assembly, thus decreasing assembly time while maintaining modular adaptability.

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 approach reduces production costs and time, enhances safety through hermetic sealing, and allows for the production of compact, high-power-density energy storage modules with lower material costs and simpler assembly processes.

Implementation Method 1

A barrier layer is arranged between the housing and the multiplicity of energy storage cells, at least in some region or regions, preferably completely. The barrier layer means a layer which prevents gases and/or liquids being able to enter the housing or leave the housing.

Methodology Applied
Scientific EffectPhysical barrier: Physical Containment

Data Source

PatentUS11862767B2Energy storage module and method for production thereof
Publication Date: 2024.01.02 CLARIOS ADVANCED POWER SOLUTIONS GMBH
  • US11862767B2 patent drawing
  • US11862767B2 patent drawing
  • US11862767B2 patent drawing

AI summary

The invention relates to an energy storage module. The energy storage module includes a plurality of energy storage cells, where each of the plurality of energy storage cells is connected electrically. The energy storage module further includes a housing having a portion that receives the plurality of energy storage cells, a measurement line integrated into the housing, and a barrier layer arranged between the housing and the plurality of energy storage cells. The barrier layer is at least in the portion of the housing and is impermeable to gases and liquids. An energy storage system and a method for continuously producing energy storage modules are also described.