3D Interpenetrating Electrodes for Uniform Electrochemical Fields

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Solution Overview

Problem

Existing electrochemical devices are limited by non-uniform electric fields, energy losses due to mass transport resistances, and restricted design space due to simple electrode configurations, which hinder efficient energy generation and multiple reaction capabilities.

Innovation Solution

The development of interpenetrating multi-electrode structures in 3D space using computer-aided design and advanced manufacturing techniques, such as additive manufacturing and heat treatment, to create continuous electrode configurations that do not physically contact each other, allowing for improved electric field uniformity and expanded design possibilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If simple electrode configurations (flat sheets, wires) are used, then manufacturing is easy and device structure is simple, but electric field uniformity is poor and mass transport resistance is high

Engineering Contradiction:
Improveease of manufactureVSAvoidelectric field uniformity
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent transitions from traditional 2D flat sheet electrodes to 3D interpenetrating electrode structures. The electrodes are configured as continuous three-dimensional networks that interweave through the electrolyte volume, creating uniform electric field distribution in all spatial dimensions while maintaining manufacturability through additive manufacturing processes.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The electrode structures are divided into multiple interconnected segments that form a lattice-like network. This segmentation allows the electrodes to maintain electrical continuity while creating numerous small active sites distributed throughout the 3D space, improving both electric field uniformity and mass transport efficiency.

Inventive Principle:
Principle #1Segmentation

2Device complexity

If simple electrode configurations are used, then device structure is simple, but volumetric form factor is limited and multiple reaction capabilities are restricted

Engineering Contradiction:
Improvedevice complexityVSAvoidmultiple reaction capabilities
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The interpenetrating electrode structure serves multiple functions simultaneously: it provides electrical conduction, creates uniform electric fields, enables mass transport, and supports multiple electrochemical reactions in different spatial zones. The same 3D electrode network configuration can facilitate various reactions (e.g., oxygen evolution, hydrogen evolution, CO2 reduction) at different locations within the device.

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

Solution Approach 2:

By moving from 2D to 3D electrode configurations, the patent expands the available design space and volumetric form factor. The interpenetrating structures create multiple distinct reaction zones within the same device volume, enabling simultaneous multiple reactions without increasing overall device complexity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Reliability

If continuous 3D interpenetrating electrode structures are created, then electric field uniformity is improved and multiple reactions are enabled, but manufacturing complexity increases

Engineering Contradiction:
Improveelectric field uniformityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent employs additive manufacturing (3D printing) techniques to fabricate the complex interpenetrating electrode structures. This manufacturing approach naturally handles 3D geometries and eliminates the need for complex assembly processes, making the complicated structures manufacturable through digital design and direct fabrication.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent replaces traditional mechanical assembly methods with digital manufacturing processes. The electrode structures are designed using computer-aided design (CAD) software and fabricated through additive manufacturing, substituting complex mechanical assembly operations with automated digital fabrication that simplifies the manufacturing process despite the geometric complexity.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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

This approach enhances control over electric field uniformity, enables multiple electrochemical reactions, and expands the design space for electrochemical devices, improving their performance and functionality.

Implementation Method 1

additive manufacturing system. The method may comprise printing first and second structures such that the first and second have portions thereof which form an interpenetrating configuration

Methodology Applied
Scientific EffectAdditive manufacturing: 3D Printing

Implementation Method 2

The method may further include plating the first and second structures with first and second materials, respectively

Methodology Applied
Scientific EffectElectroplating: Electroplating

Data Source

PatentUS20250006887A1System and methods relating to interpenetrating multi-electrodes and fabrication thereof for electrochemical devices
Publication Date: 2025.01.02 LAWRENCE LIVERMORE NAT SECURITY LLC
  • US20250006887A1 patent drawing
  • US20250006887A1 patent drawing
  • US20250006887A1 patent drawing

AI summary

The present disclosure relates to a multi-electrode electrochemical apparatus. In one embodiment the apparatus has a first beam-like structure having a first material coating, with the first beam-like structure forming a first electrode. A second structure is included which has a second material coating. The second structure forms a second electrode. The first and second structures are further configured in an interpenetrating fashion within a defined 3D space to form an electrochemical apparatus, and without physical contact at any point within the defined 3D space.