Battery Rotation and Pulse Charging for Acid Stratification

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Solution Overview

Problem

Lead-acid batteries, particularly valve-regulated lead-acid batteries, suffer from electrolyte separation leading to stratification of sulfuric acid concentration, which adversely affects their energy parameters during operation and storage.

Innovation Solution

A method and device for homogenizing electrolyte concentration within a cell by rotating the battery within a container, optionally weight-balancing and electrically contacting it, and applying alternating pulses to restore energy parameters.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If lead-acid batteries are operated or stored for long periods, then energy output is provided, but electrolyte separation occurs leading to sulfuric acid concentration stratification

Engineering Contradiction:

Improveenergy outputVSAvoidelectrolyte concentration homogeneity

Core Design Contradiction:

Use of energy by moving objectVSStability of the object's composition

Solution Approach 1:

The patent applies dynamic rotation of the battery cell around its longitudinal axis during charging and storage periods. This mechanical motion transforms the static electrolyte system into a dynamic one, preventing acid stratification through continuous movement that promotes uniform distribution of sulfuric acid concentration throughout the electrolyte volume.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The rotation mechanism creates mechanical agitation and vibration effects within the electrolyte, preventing separation and stratification of sulfuric acid. This mechanical action mimics the effect of vibration and motion on fluid mixing, ensuring homogeneous electrolyte composition without requiring complex chemical additives or external mixing devices.

Inventive Principle:

Principle #18Mechanical vibration

2Reliability

If electrolyte concentration is homogenized by rotating the battery, then energy parameters are restored, but device complexity increases

Engineering Contradiction:

Improveenergy parametersVSAvoidbattery container system

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The battery container is designed to serve multiple functions: it provides structural containment for the battery cell, acts as a rotation mechanism through its mounting on a rotating platform, and functions as a weight-balancing system. This multi-functionality reduces the need for separate dedicated components for each function, thereby limiting the increase in overall device complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system utilizes the battery's own weight and the rotation mechanism's inherent properties to achieve electrolyte homogenization. The weight-balancing feature allows the system to self-adjust during rotation, and the electrochemical processes continue to occur naturally within the rotating cell, requiring minimal additional control systems or external interventions.

Inventive Principle:

Principle #25Self-service

3Stability of the object's composition

If the battery is rotated during restoration, then electrolyte homogeneity is improved, but manufacturing complexity increases

Engineering Contradiction:

Improveelectrolyte concentrationVSAvoidbattery container assembly

Core Design Contradiction:

Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The system is divided into separable modules: the battery cell, the battery container, the rotation platform, and the weight-balancing mechanism. This segmentation allows each component to be manufactured independently using standard processes, and then assembled together. The container itself remains a simple protective enclosure, while the rotation and balancing features are added as separate functional modules.

Inventive Principle:

Principle #1Segmentation

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 homogenizes the sulfuric acid concentration within the battery cells, improving energy parameters such as discharge capacity and charge acceptance, thereby extending the operational life of lead-acid batteries.

Implementation Method 1

rotating the battery fixed in the battery container, and homogenizing an electrolyte concentration within internal components of at least one cell contained within the battery

Methodology Applied

Scientific EffectMechanical rotation:

Implementation Method 2

connecting the battery to a bipolar overvoltage pulser and applying alternating positive and negative pulses to the battery

Methodology Applied

Scientific EffectElectrical pulsing:

Implementation Method 3

electrically contacting the battery and a programmable charging device to restore one or more energy parameters of the battery

Methodology Applied

Scientific EffectElectrical charging: Battery (electricity)

Data Source

PatentUS20250047228A1Method and device for restoration of a battery's energy parameters

Publication Date: 2025.02.06 WAVETECH GMBH

AI summary

A device for restoring energy parameters of a battery is provided. The device includes a supporting frame, a controller, and a battery container configured to receive the battery therein, the battery container being operably coupled to a controlling inverter and a motor comprising a motor reductor. The controlling inverter is configured to regulate a rotational speed of the motor. The motor reductor is configured to facilitate rotation of the battery container. Methods of restoring energy parameters of a battery are also provided.