Bag-Shaped Wrapping Cover for Liquid Battery Materials

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Solution Overview

Problem

Liquid battery materials face performance deterioration during storage and transportation due to contamination and property changes, leading to insufficient battery performance when used for production.

Innovation Solution

A wrapping cover with a bag-shaped sheet made of a resin layer, optionally including a conductive material and a thin metal film layer, is used to enclose the container, preventing contamination and property changes by reducing electrostatic charging and light irradiation, and ensuring a high container occupancy rate to minimize exposure to foreign matters.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional container is used for storage and transportation of liquid battery material, then the container provides basic containment and mobility, but the liquid battery material suffers performance deterioration due to contamination and property changes

Engineering Contradiction:

Improveperformance of liquid battery materialVSAvoidcontamination and property changes

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies a flexible wrapping cover made of thin film material that envelops the container holding liquid battery material. This flexible shell provides an additional protective barrier that prevents contamination and property changes during storage and transportation, thereby maintaining the reliability and performance of the liquid battery material without compromising containment or mobility

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The wrapping cover creates a protected environment around the container, effectively isolating the liquid battery material from harmful external factors such as dust, moisture, and air exposure. This inert-like protective environment prevents contamination and chemical property changes, ensuring the material maintains its intended performance characteristics throughout storage and transport

Inventive Principle:

Principle #39Inert atmosphere (Inert environment)

2Ease of operation

If the liquid battery material is exposed to foreign matters during storage and transportation, then mobility and accessibility are maintained, but contamination occurs leading to insufficient battery performance

Engineering Contradiction:

Improvemobility and accessibilityVSAvoidforeign matters and contamination

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The flexible wrapping cover maintains mobility and accessibility while providing continuous protection against foreign matters. The cover can be easily applied and removed, allowing for convenient handling and transportation, while simultaneously forming a barrier that prevents contamination of the liquid battery material throughout the storage and transport process

Inventive Principle:

Principle #30Flexible shells and thin films

3Reliability

If a wrapping cover is added to the container, then protection against contamination is improved, but the device complexity increases

Engineering Contradiction:

Improveprotection against contaminationVSAvoidstructure of packaging system

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The wrapping cover is designed as a simple, single-component flexible film structure that provides comprehensive contamination protection without adding mechanical complexity. The cover can be easily applied to standard containers, requiring no additional fastening mechanisms or complex assembly steps, thus maintaining simplicity while significantly improving protective capabilities

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The wrapping cover is designed as a disposable protective element that provides effective contamination barrier functionality at low cost. After use, the cover is discarded rather than reused or maintained, eliminating the need for cleaning, inspection, or repair procedures and keeping the overall packaging system simple and cost-effective

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

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 wrapping cover effectively prevents performance deterioration of liquid battery materials during storage and transportation by reducing contamination and property changes, ensuring high filtration and high-temperature cycle properties of the battery materials.

Implementation Method 1

Methodology Applied

Scientific EffectElectrostatic charging: Electrostatics

Data Source

PatentEP3604164B1Packaging cover, packaged article, and packaging method

Publication Date: 2024.01.10 ZEON CORP

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AI summary

A wrapping cover for packaging a liquid battery material, including a bag-shaped sheet constituted by a sheet including a resin layer and having a shape of a bag with an opening, wherein the bag-shaped sheet includes a contracting portion provided around the opening so as to be capable of adjusting a size of the opening, and the wrapping cover further comprises a fastening member provided along the opening so as to be capable of adjusting the size of the opening; as well as a package and a packaging method using the same. Preferably, the fastening member has an elastic property, and a surface resistance value of the sheet is 1011 ohm/sq. or less.