Silver Chloride Paste Silica Support Dispersibility

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Solution Overview

Problem

Existing silver chloride pastes for nonpolarizable electrodes lack novel configurations, leading to issues with dispersibility and light resistance.

Innovation Solution

A silver chloride paste comprising a binder resin and supported silver chloride on a silica substrate, where silica-supported silver chloride is produced using methods like precipitation or impregnation, enhancing dispersibility and surface area.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional silver chloride paste is used, then the electrode can be formed, but the dispersibility is poor and light resistance is insufficient

Engineering Contradiction:
Improvelight resistanceVSAvoiddispersibility
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent uses silica-supported silver chloride as a composite material where silver chloride particles are supported on silica carriers. This composite structure improves both dispersibility (by preventing AgCl aggregation on the silica surface) and light resistance (through the protective silica matrix), resolving the technical contradiction between these two properties.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The silica support provides a porous structure that enhances the dispersibility of silver chloride particles while maintaining structural integrity for light resistance. The porous silica matrix allows better distribution of AgCl particles and prevents their aggregation, simultaneously addressing both dispersibility and light resistance requirements.

Inventive Principle:
Principle #31Porous materials

2Ease of manufacture

If silver chloride particles are used directly, then the paste can be prepared, but agglomeration occurs reducing performance

Engineering Contradiction:
Improvepaste preparationVSAvoidagglomeration
Core Design Contradiction:
Ease of manufactureVSStability of the object's composition

Solution Approach 1:

Silica acts as an intermediary carrier that supports silver chloride particles, preventing direct contact and agglomeration between AgCl particles. The silica surface provides dispersion sites that maintain particle separation while allowing paste preparation to proceed easily, resolving the contradiction between ease of manufacture and prevention of agglomeration.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If novel configuration is introduced with supported silver chloride, then dispersibility and light resistance improve, but manufacturing complexity increases

Engineering Contradiction:
ImprovedispersibilityVSAvoidmanufacturing process
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent changes the physical and chemical parameters of the silver chloride by supporting it on silica carriers with specific surface areas and pore structures. This parameter change (from pure AgCl particles to silica-supported AgCl) improves dispersibility and light resistance while the standardized silica support materials keep the manufacturing process relatively simple, balancing the contradiction between performance improvement and manufacturing complexity.

Inventive Principle:
Principle #35Parameter changes

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 silica-supported silver chloride paste improves dispersibility, reduces agglomeration, enhances polarization reduction, and offers improved light resistance and cost-effectiveness compared to conventional pastes.

Implementation Method 1

silver chloride supported on the support

Methodology Applied
Scientific EffectAdsorption: Adsorption

Implementation Method 2

silica-supported silver chloride is produced using methods like precipitation or impregnation

Methodology Applied
Scientific EffectPrecipitation: Precipitation

Data Source

PatentUS10629325B2Silver chloride paste
Publication Date: 2020.04.21 TATSUTA ELECTRICWIRE & CABLE
  • US10629325B2 patent drawing
  • US10629325B2 patent drawing

AI summary

A silver chloride paste contains: a binder resin; and supported silver chloride that includes (i) a support and (ii) silver chloride supported on the support. The binder resin is, for example, a polyester resin. The support is, for example, silica.