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Electrodeposition01:08

Electrodeposition

Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
Electrodeposition can...
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Electrochemical systems provide a fascinating insight into the dynamic interplay of charged species within various phases. One notable example is the interaction between a membrane permeable to K⁺ ions but not to Cl⁻ ions, separating an aqueous KCl solution from pure water. As K⁺ ions diffuse through the membrane, they generate net charges on each phase, leading to a potential difference between them.Similarly, when a piece of Zn is immersed in an aqueous ZnSO₄ solution, the Zn metal, composed...
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Anodic Stripping Voltammetry (ASV)
ASV is used to determine metals and metalloids at trace levels. It involves two steps: deposition and stripping. First, a negative potential is applied to the...

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Published on: June 23, 2017

Contradictive-objective-solution (C-OS) matrix research for technology gap analysis of electrolytic copper foil.

Donghae Kim1, Kyeongtae Park2, Daehwan Kim2

  • 1Department of Electronic Engineering, Chungbuk National University, Cheongju, Korea.

Scientific Reports
|May 18, 2026
PubMed
Summary

A new Contradiction-based Objective-Solution (C-OS) matrix reveals promising sulfonic acid groups for advanced electrolytic copper foil in electric vehicles (EVs) and energy storage systems (ESS). This method avoids infeasible R&D paths, guiding innovation for better battery performance.

Keywords:
AdditiveBatteryCu-foilInventionPatentTRIZ methodology

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Published on: December 5, 2015

Area of Science:

  • Materials Science
  • Chemical Engineering
  • Innovation Management

Background:

  • Electrolytic copper foil is crucial for electric vehicle (EV) and energy storage system (ESS) batteries, impacting energy density and safety.
  • Current development faces trade-offs between critical performance criteria, hindering innovation.
  • Conventional patent analysis methods struggle to distinguish feasible innovation opportunities from technical dead ends.

Purpose of the Study:

  • To introduce a novel Contradiction-based Objective-Solution (C-OS) matrix for enhanced patent landscape analysis.
  • To overcome limitations of traditional methods in identifying viable R&D white spaces.
  • To guide strategic R&D portfolio management for next-generation battery materials.

Main Methods:

  • Integration of the Theory of Inventive Problem Solving (TRIZ) into patent landscape analysis.
  • Development and application of the C-OS matrix, incorporating weighted technical contradictions.
  • Comparative analysis against the conventional Objective-Solution (OS) matrix.

Main Results:

  • The C-OS matrix identified a false white space in "Hydroxyl-Thermal Stability" due to prohibitive trade-offs, unlike the conventional OS matrix.
  • A viable white space was identified in sulfonic acid-based groups, offering potential for simultaneous improvements.
  • Sulfonic acid groups show promise in reducing pinhole defects and suppressing thermal deformation in copper foils.

Conclusions:

  • The C-OS matrix provides a more accurate method for identifying high-probability innovation pathways in materials science.
  • Sulfonic acid functionalization represents a promising direction for developing advanced electrolytic copper foils.
  • This framework enables more efficient resource allocation and sustainable technological competitiveness in battery material development.