Rechargeable Battery Retainer With Inclined Insertion Guide

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Solution Overview

Problem

Rechargeable batteries face challenges in smoothly inserting the electrode assembly into the case, which can lead to damage during assembly due to the opening of the case.

Innovation Solution

Incorporating a retainer with an inclined insertion guide and side retainers that guide the electrode assembly into the case, preventing contact with the opening and ensuring safe insertion, while also providing structural support and electrical insulation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the electrode assembly is directly inserted into the case without guidance, then the assembly process is simple, but the electrode assembly may be damaged by the opening of the case

Engineering Contradiction:
Improveprevention of electrode assembly damageVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The retainer acts as an intermediary component between the electrode assembly and the case. It includes an insertion guide that guides the electrode assembly during insertion, preventing direct contact with the case opening that could cause damage. The retainer is coupled to the lead tab and positioned inside the case, serving as a protective mediator during the assembly process.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If a retainer with insertion guide is added to guide the electrode assembly, then the insertion process becomes safer, but the device structure becomes more complex

Engineering Contradiction:
Improveease of insertionVSAvoidstructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The insertion guide on the retainer performs preliminary action by preparing the path for the electrode assembly before actual insertion. The inclined surface of the insertion guide预先 creates a guided pathway that directs the electrode assembly into the case properly, making the insertion process easier and safer by preventing misalignment or damage during the operation.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS10333113B2Rechargeable battery having retainer
Publication Date: 2019.06.25 SAMSUNG SDI CO LTD
  • US10333113B2 patent drawing
  • US10333113B2 patent drawing
  • US10333113B2 patent drawing

AI summary

A rechargeable battery including: an electrode assembly; a case containing the electrode assembly; a cap plate covering an opening of the case; a terminal extending outside the cap plate; a lead tab connecting the electrode assembly to the terminal; and a retainer coupled to the lead tab inside the case and arranged between the lead tab and the case, the retainer including an insertion guide facing away from the electrode assembly and being inclined toward the electrode assembly in a direction extending away from the cap plate.