Replaceable Conductive Adhesive Connection for Battery Contact Pads

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Solution Overview

Problem

Current connection systems for battery management systems, such as wired connectors, are costly, space-consuming, and difficult to automate, and permanent connection methods like welding or soldering compromise serviceability.

Innovation Solution

A replaceable electrical connection system using a conductive core with an electrically conductive adhesive, allowing for a cost-effective, simple, and automated installation method that improves serviceability by using materials like copper or aluminum foils and conductive inks, with flexible insulation and adhesive layers for secure and efficient signal transfer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If wired connectors with clamping/locking mechanisms are used, then reliable electrical connection is achieved, but cost increases and space consumption increases

Engineering Contradiction:
Improveelectrical connection reliabilityVSAvoidconnector complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the essential function of electrical connection from complex connector assemblies and implements it through a simple conductive adhesive layer applied directly to the contact surface, eliminating clamping and locking mechanisms while maintaining reliable electrical contact

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces mechanical connection systems (clamps, locks, screws) with a chemical/adhesive-based system where conductive adhesive provides both mechanical attachment and electrical conduction, thereby reducing device complexity and space requirements

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

2Reliability

If wired connectors with clamping/locking mechanisms are used, then reliable electrical connection is achieved, but installation automation becomes difficult

Engineering Contradiction:
Improveelectrical connection reliabilityVSAvoidinstallation automation
Core Design Contradiction:
ReliabilityVSExtent of automation

Solution Approach 1:

The conductive adhesive system is self-applying through dispensing or printing processes, requiring no manual assembly of multiple connector components, which enables straightforward automation of the installation process while maintaining reliable electrical connections

Inventive Principle:
Principle #25Self-service

3Stability of the object's composition

If permanent connection methods like welding or soldering are used, then connection stability is improved, but serviceability deteriorates

Engineering Contradiction:
Improveconnection stabilityVSAvoidserviceability
Core Design Contradiction:
Stability of the object's compositionVSEase of repair

Solution Approach 1:

The patent creates a dynamically adjustable connection system where the adhesive bond strength can be tailored to allow for controlled removal and replacement, providing both stability during operation and ease of service when needed, unlike permanent welding or soldering connections

Inventive Principle:
Principle #15Dynamics

4Device complexity

If conductive adhesive is used, then cost is reduced and space is reduced, but connection strength may be compromised

Engineering Contradiction:
Improveconnection system simplicityVSAvoidconnection strength
Core Design Contradiction:
Device complexityVSStrength

Solution Approach 1:

The patent employs composite material structures combining the conductive adhesive with reinforcing elements or optimized substrate designs to achieve both mechanical strength and electrical conductivity, overcoming the limitation of simple adhesive applications

Inventive Principle:
Principle #40Composite materials

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 reduces costs and space requirements while enabling automated installation and enhanced serviceability, allowing for efficient signal transfer and easy replacement of connections in battery management systems.

Implementation Method 1

an electrically conductive adhesive provided on the contact surface for connecting with the contact pad

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentEP4528909A1Connection system
Publication Date: 2025.03.26 ALT TECH
  • EP4528909A1 patent drawingFigure 1~2A
  • EP4528909A1 patent drawingFigure 2B~3
  • EP4528909A1 patent drawingFigure 4~5

AI summary

A connection system for providing a replaceable electrical connection to a contact pad of an electrical component. The system includes an electrical conductor having a conductive core with a body section and at least a first end section. The conductive core is electrically insulated except for the end section which has a contact surface for electrical connection with the contact pad. An electrically conductive adhesive is provided on the contact surface for connecting with the contact pad. The connection can be exchanged by cutting away the body section of an existing connection and applying a new connection onto or adjacent to the existing installed end section.