Battery Electrode Protection Using Disturbance Current Superposition

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Solution Overview

Problem

Existing battery devices suffer from efficiency reduction due to the buildup of layers on electrodes, which is exacerbated by chemical and physical ageing processes, and current temperature control methods are costly and limited in effectiveness.

Innovation Solution

A method involving determining electrical battery parameters to generate a disturbance current that superimposes on the operating current, altering its amplitude and frequency to inhibit or reduce electrode ageing by disrupting ion and electron transitions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If temperature control is used to prevent ageing processes, then electrode protection is improved, but energy consumption increases and protective mechanisms are limited

Engineering Contradiction:

Improveelectrode protectionVSAvoidenergy consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent applies parameter changes by modifying the electrical operating parameters (current amplitude and frequency) to generate a disturbance current that prevents electrode ageing. Instead of controlling temperature, the system changes the electrical parameters to create a protective effect through disharmonic superposition, thereby avoiding the energy consumption associated with thermal control while achieving the same protective outcome.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent substitutes the mechanical/thermal system (temperature control) with an electrical system (disturbance current generation). By replacing the thermal protection mechanism with an electrical parameter modulation approach, the system eliminates the need for energy-intensive heating or cooling while achieving electrode protection through electrical means alone.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If temperature control is used to prevent ageing processes, then electrode protection is improved, but device complexity and cost increase

Engineering Contradiction:

Improveelectrode protectionVSAvoidprotective mechanism complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent simplifies the protective mechanism by changing electrical parameters (amplitude and frequency) rather than implementing complex temperature control systems. This approach requires only software or simple circuit modifications to generate the disturbance current, avoiding the need for sensors, actuators, and control systems required for thermal management.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent replaces the complex mechanical/thermal protective system with a simpler electrical control approach. By substituting temperature control infrastructure with electrical parameter modulation, the system achieves the same protective function with significantly reduced device complexity and lower implementation costs.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If disturbance current is applied to inhibit ageing, then electrode efficiency is maintained, but additional energy is required for disturbance current generation

Engineering Contradiction:

Improveelectrode efficiencyVSAvoidenergy for disturbance current

Core Design Contradiction:

ProductivityVSUse of energy by moving object

Solution Approach 1:

The patent converts the harmful effect of continuous operating current (which causes layer buildup and ageing) into a beneficial protective mechanism. By superimposing a disturbance current with disharmonic parameters, the system transforms the otherwise harmful continuous current into a protective waveform that prevents layer formation, thereby converting a negative effect into a positive protective action.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The patent employs periodic action by applying a disturbance current with specific frequency characteristics that periodically disrupt the electrode surface processes. This periodic disturbance prevents the continuous accumulation of layers by intermittently disrupting ion and electron transitions, thereby maintaining electrode efficiency through rhythmic electrical stimulation rather than continuous additional energy input.

Inventive Principle:

Principle #19Periodic action

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 method effectively reduces the rate of electrode ageing by preventing layer buildup through disharmonic current superposition, offering a cost-effective and precise solution.

Implementation Method 1

applying the disturbance current to the operating current to the one electrode in order to inhibit or reduce an ageing process at the one electrode

Methodology Applied

Scientific EffectElectrical superposition:

Data Source

PatentUS12461159B2Method for protecting a battery device

Publication Date: 2025.11.04 AVL LIST GMBH

AI summary

The invention relates to a method for protecting a battery device (100), in particular an electrode of the battery device (100), having the following steps: determining at least one electrical battery parameter (EBP) of the battery device (100), determining an operating parameter (BP) of an operating current (IB) of the battery device, calculating a disturbance parameter (SP) for a disturbance current (IS) on the basis of the operating parameter (BP), generating the disturbance current (IS), and applying the disturbance current (IS) to the operating current (IB).