Lead Battery Electrolyte Dispersant Prevents Stratification
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Solution Overview
Problem
Conventional lead storage batteries experience electrolyte stratification due to sulfate ion settlement, leading to reduced reactivity, battery capacity loss, and shortened lifespan, as sulfate ions accumulate at the lower electrode portion due to gravity, causing uneven charge and discharge reactions.
Innovation Solution
An electrolyte composition for lead storage batteries using a dispersant with a specific gravity of 1.02 to 1.35, mixed with distilled water and sulfuric acid, which creates a natural stirring effect to prevent stratification by adjusting the specific gravity difference between the upper and lower electrolyte portions, using a mixture of glass bubbles or polymer resins with fillers to maintain uniform sulfate ion distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If sulfate ions are released into the electrolyte during charging, then charge reaction proceeds, but sulfate ions accumulate at the lower electrode portion due to gravity causing stratification
Solution Approach 1:
A dispersant comprising hydrophilic colloidal particles is introduced as an intermediary substance into the electrolyte. These particles interact with sulfate ions and provide buoyancy, preventing their gravitational settlement. The dispersant acts as a mediator between the sulfate ions and the electrolyte, maintaining uniform distribution while allowing charge reactions to proceed normally.
Solution Approach 2:
The specific gravity of the dispersant is carefully controlled to be between 0.98 and 1.05, which is slightly less than or equal to the electrolyte's specific gravity. This parameter adjustment ensures that the dispersant particles remain suspended and can effectively counterbalance the gravitational force on sulfate ions without settling themselves, thereby preventing stratification.
2Reliability
If sulfate ions settle at the lower portion, then stratification occurs, but this reduces reactivity and battery lifespan
Solution Approach 1:
The hydrophilic colloidal particles serve as a protective intermediary that surrounds sulfate ions, preventing their aggregation and settlement. This intermediary layer maintains sulfate ions in suspension, ensuring continuous reactivity at the electrode surfaces and preventing the harmful effects of stratification on battery lifespan.
Solution Approach 2:
The invention converts the harmful gravitational settling of sulfate ions into a beneficial distributed state by introducing dispersant particles. The sulfate ions, which would naturally settle and cause harm, are now maintained in uniform distribution through their interaction with the dispersant, transforming a harmful gravitational effect into a beneficial uniform state that extends battery life.
3Stability of the object's composition
If mechanical devices are used to circulate electrolyte, then stratification is reduced, but device complexity increases
Solution Approach 1:
The dispersant particles enable the electrolyte system to self-regulate and prevent stratification without external mechanical intervention. The colloidal particles naturally interact with sulfate ions and maintain their distribution through density differences, allowing the system to maintain uniformity autonomously without pumps, agitators, or other mechanical circulation devices.
Solution Approach 2:
The invention replaces mechanical circulation systems with a chemical-colloidal solution. Instead of using mechanical devices to physically move and mix the electrolyte, the system uses hydrophilic colloidal particles that chemically interact with sulfate ions and provide buoyancy, substituting mechanical mixing with a chemical-colloidal mechanism that achieves the same stratification prevention goal.
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 solution effectively doubles the battery lifespan, reduces insurance claims and manufacturing costs, and eliminates the need for expensive absorbent glass mat batteries, while maintaining vehicle layout and weight integrity, by continuously circulating sulfate ions and reducing stratification.
Implementation Method 1
a natural stirring effect caused by a specific gravity difference between a dispersant having a specific gravity of from about 1.02 to about 1.35 and an electrolyte including distilled water and sulfuric acid
Implementation Method 2
using a natural stirring effect caused by a specific gravity difference
Data Source
AI summary
An electrolyte composition for a lead storage battery and a lead storage battery using the same are provided. More particularly, the electrolyte composition of a lead storage battery and the lead storage battery using the same improve stratification of an electrolyte without use of a separate mechanical device by using a natural stirring effect caused by a specific gravity difference between a dispersant having a specific gravity of from about 1.02 to about 1.35 and an electrolyte including distilled water and sulfuric acid. Due to the reduction in mechanical components, the electrolyte composition for a lead storage battery and a lead storage battery disclosed herein have enhanced durability compared to conventional batteries.