Battery Cell Holder Grooves for Low-Resistance Adhesive Assembly

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

The resistance of adhesive liquid in battery cell holders poses a challenge during the assembly of battery cells, making it difficult to seat and assemble the cells effectively.

Innovation Solution

A battery cell holder design featuring a cell support with through-holes and guide grooves that allow the adhesive liquid to flow along the side surface of the battery cell, reducing resistance and facilitating assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If adhesive liquid is used to reinforce rigidity and enhance cooling functions, then structural strength and cooling performance are improved, but assembly difficulty increases due to adhesive resistance

Engineering Contradiction:
ImproverigidityVSAvoidassembly difficulty
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The cell support is divided into multiple functional regions: through-holes for adhesive injection, guide grooves for adhesive flow control, and support portions for cell positioning. This segmentation allows the adhesive to be applied in a controlled manner, reducing resistance during assembly while ensuring adequate structural reinforcement.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The guide groove acts as an intermediary structure that facilitates the flow of adhesive liquid from the through-hole to the bonding interface. By providing a dedicated flow path, the guide groove reduces the resistance that would otherwise occur during adhesive application and cell assembly.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Temperature

If adhesive liquid is used to enhance cooling functions, then thermal management performance is improved, but assembly difficulty increases due to adhesive resistance

Engineering Contradiction:
Improvecooling functionVSAvoidassembly difficulty
Core Design Contradiction:
TemperatureVSEase of operation

Solution Approach 1:

The cell support is divided into multiple functional regions: through-holes for adhesive injection, guide grooves for adhesive flow control, and support portions for cell positioning. This segmentation allows the adhesive to be applied in a controlled manner, reducing resistance during assembly while ensuring adequate structural reinforcement.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The guide groove acts as an intermediary structure that facilitates the flow of adhesive liquid from the through-hole to the bonding interface. By providing a dedicated flow path, the guide groove reduces the resistance that would otherwise occur during adhesive application and cell assembly.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If adhesive liquid is applied to ensure dense and tight fill, then structural integrity and cooling efficiency are improved, but assembly resistance increases

Engineering Contradiction:
Improvestructural integrityVSAvoidassembly resistance
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The guide groove is pre-formed on the cell support to create a flow path for the adhesive liquid. This preliminary structural preparation ensures that when adhesive is applied during assembly, it naturally flows along the guide groove to achieve dense and tight fill without creating excessive resistance, thereby maintaining both reliability and ease of assembly.

Inventive Principle:
Principle #10Preliminary action

4Ease of manufacture

If through-holes are provided for adhesive injection, then adhesive application is facilitated, but structural complexity increases

Engineering Contradiction:
Improveadhesive applicationVSAvoidstructural complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The cell support is divided into multiple functional regions: through-holes for adhesive injection, guide grooves for adhesive flow control, and support portions for cell positioning. This segmentation allows the adhesive to be applied in a controlled manner, reducing resistance during assembly while ensuring adequate structural reinforcement.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cell support structure integrates multiple functions into a single component: it provides mechanical support for battery cells, serves as a substrate for adhesive application through through-holes, guides adhesive flow via grooves, and enhances cooling. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in structural complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 design reduces the resistance caused by the adhesive liquid during assembly, making it easier to insert and seat battery cells, while also ensuring a dense and tight fill of adhesive liquid for enhanced rigidity and cooling functions.

Implementation Method 1

due to the resistance of the adhesive liquid filled in the structure of the lower side of the battery

Methodology Applied
Scientific EffectViscosity:

Data Source

PatentEP4546522A1Battery cell holder
Publication Date: 2025.04.30 SAMSUNG SDI CO LTD
  • EP4546522A1 patent drawingFigure 1
  • EP4546522A1 patent drawingFigure 2
  • EP4546522A1 patent drawingFigure 3

AI summary

The present disclosure is directed to providing a battery cell holder capable of further reducing the resistance of an adhesive liquid when a battery cell is assembled to a structure of a lower side of a battery. The battery cell holder includes a cell support in which a plurality of battery cells are fitted and seated, a through-hole formed through the cell support and into which an adhesive liquid is introduced, and a guide groove formed on the cell support to extend in a seated direction of the battery cell, coming into contact with the through-hole and configured to form a passage through which the adhesive liquid can flow along a side surface of the battery cell.