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Unik Techno • August 20, 2020
What happens if lead acid battery runs out of water?
What happens if lead acid battery runs out of water?
A lead acid battery has positive & negative plates fully immersed in electrolyte which is dilute sulphuric acid.
The concentration of electrolyte is defined & specified for batteries of different applications based on the application & in line with national & international standards.
This concentration is expressed as specific gravity.
This specific gravity is usually determined at design stage by battery manufacturers with relation to the volume of electrolyte which can be accommodated in a cell. The specific gravity is always in a defined range with the maximum specific gravity specified in such a manner so that it does not accelerate corrosion of battery components & allows for release of sulphate from the plates when a battery is on charge. The minimum specific gravity is also such that it retains the conductivity of electrolyte so that there are no problems to charge a fully discharged battery. Thus the volume & concentration of electrolyte form part of the design of battery.
As regards battery plates the active materials of the plates are decided in such a manner that the quantity of active materials as well as surface area of the plates decide battery capacity.
When the level of battery electrolyte reduces to an extent that the top portion of the plates are exposed - a situation is created wherein a certain portion of the plates do not take part in the reaction.
This leads to reduction in battery capacity. This is undesirable & hence it is not recommended to allow the battery to run out of water.
Regular topping up with distilled or demineralized water ensures that level of electrolyte is maintained. Evaporation of water component of battery electrolyte has to be compensated by topping up with water on a regular basis at defined intervals.
Another effect of reduction of electrolyte due to evaporation of water is increase in concentration of electrolyte i.e. increase in specific gravity. An increase in specific gravity of electrolyte with plates not fully immersed in electrolyte results in heating up of cell on charge. The battery can get damaged since corrosion of internal components used in battery manufacturing is accelerated in the acidic electrolyte at elevated temperatures.
A physical effect of reduction of water is heating up especially during the last stages of charging or in case of an undesired overcharging. Electrolyte also acts as a coolant though this may not be its main purpose for its presence in a battery. Hence the problems of thermal runaway faced by sealed maintenance free (SMF) or valve regulated lead acid (VRLA) batteries is not a phenomenon faced by designers of flooded electrolyte lead acid battery designers.
Finally coming to the main question as to what happens when a lead acid battery runs out of water – totally i.e. electrolyte has fully dried up or battery has been tilted or stored upside down due to which the electrolyte has spilled. Please note that we must not remove acid completely from flooded electrolyte lead acid batteries once it has been filled with acid & charged.
A lead acid battery consists of a few major components viz. the positive electrode, negative electrode, sulphuric acid, separators & tubular bags.
In charged condition the positive electrodes are lead dioxide and negative electrodes are sponge lead.
Sponge lead is highly reactive in the presence of moisture & oxygen and gets converted to lead oxide. In the process of conversion to lead oxide it gets discharged & heated up.
Hence it is necessary to ensure that the acid is not spilled or drained from a wet battery once it is filled and charged.
As and when a battery filled with acid is drained of acid the wet moist negative electrodes come in contact with atmospheric oxygen. An exothermic reaction takes place releasing an enormous amount of heat thereby discharging the negative plates (electrodes) and oxidizing the sponge lead to lead oxide.
During this exothermic process of heating up of the negative electrodes, the other components within the cell i.e. separators, tubular bags, plastic components like bottom bars, vent plugs, cell covers and rubber bushes fitted to cell covers get deformed, degraded or damaged.
Whilst it is possible to revive such batteries if they are not fully damaged, the life & performance of such batteries do get adversely affected and hence it is very important to ensure that there is no spillage of acid from fully charged batteries. Loss of electrolyte from the top of the plates in the normal course without exposing the electrodes is however different and cannot be equated to spilling.
When it comes to powering industrial equipment, the choice of battery plays a crucial role in ensuring efficiency and reliability. Traction and semi-traction batteries are key players in this arena, each designed to meet specific operational needs. This blog delves into what these batteries are and their applications in industrial settings. What are Traction Batteries? Traction batteries are specialised rechargeable batteries used to power heavy-duty industrial equipment. Unlike traditional starter batteries, they are engineered to provide reliable and consistent power over extended periods, making them suitable for applications that require deep discharges and frequent recharging. These batteries are typically made up of several cells connected in series, with the most common types being lead-acid traction batteries and lithium-ion . Lead-acid traction batteries are favored for their cost-effectiveness and durability, whereas lithium-ion traction batteries are sought after for their high energy density and lower maintenance requirements. What are the Applications of Traction Batteries? Traction batteries are widely used for rigorous applications in sectors, such as golf carts, renewable energy systems, medical equipment, and power backup systems. Material handling and industrial applications benefit significantly from these batteries. Traction batteries for material handling equipment are used for powering forklifts, pallet jacks, and other material-handling equipment. The high capacity and durability of lead-acid traction batteries and lithium-ion traction batteries make them perfect for these tasks. They ensure reliable performance and longevity in demanding environments, including warehouses and factories that rely on robust power supply. What are Semi-traction Batteries? Semi-traction batteries, also known as monobloc batteries, are engineered for exceptional performance in industrial settings where consistent power is required over extended periods. These batteries are specifically designed to handle repetitive and intense cycle use. A semi-traction battery is constructed with multiple electrically connected cell compartments containing electrodes, electrolytes, terminals, and separators. These cells can be arranged in series or parallel configurations to tailor the battery's performance to specific applications. Semi-traction batteries are engineered to endure harsh conditions, including wide temperature fluctuations (-30°C to 60°C) and exposure to shocks and vibrations. What are the Applications of Semi-traction Batteries? Semi-traction batteries are versatile and provide dependable power for various applications where the energy demand is moderate and consistent, but not as intensive as in heavy industrial use. These batteries are particularly effective in settings where a reliable energy source is needed over an extended period. They may be used for less intensive off-grid solar power systems and energy storage applications. Semi-traction batteries are particularly advantageous in golf carts and industrial cleaning equipment . Golf carts benefit from the battery’s ability to endure frequent discharge cycles, vibrations, and temperature variations, providing reliable power in varied conditions. Similarly, semi-traction batteries excel in industrial cleaning equipment, such as floor scrubbers, where they provide the necessary power to operate efficiently over long periods, withstanding the rough conditions typical in industrial environments. In the world of industrial equipment, the choice between traction and semi-traction batteries can significantly impact operational efficiency and longevity. Traction batteries provide robust, reliable power for heavy-duty applications, such as material handling equipment, while semi-traction batteries offer a dependable solution for moderate energy needs, like those found in golf carts and cleaning machines. By selecting the right type of battery for each specific application, businesses can ensure uninterrupted operations, reduce downtime, and maintain consistent performance in all conditions. UNIK recognises the diverse battery needs of different industries and is here to help you find the perfect fit. Contact us today to learn how our battery solutions can power your success.
When it comes to powering industrial equipment, the choice of battery plays a crucial role in ensuring efficiency and reliability. Traction and semi-traction batteries are key players in this arena, each designed to meet specific operational needs. This blog delves into what these batteries are and their applications in industrial settings. What are Traction Batteries? Traction batteries are specialised rechargeable batteries used to power heavy-duty industrial equipment. Unlike traditional starter batteries, they are engineered to provide reliable and consistent power over extended periods, making them suitable for applications that require deep discharges and frequent recharging. These batteries are typically made up of several cells connected in series, with the most common types being lead-acid traction batteries and lithium-ion . Lead-acid traction batteries are favored for their cost-effectiveness and durability, whereas lithium-ion traction batteries are sought after for their high energy density and lower maintenance requirements. What are the Applications of Traction Batteries? Traction batteries are widely used for rigorous applications in sectors, such as golf carts, renewable energy systems, medical equipment, and power backup systems. Material handling and industrial applications benefit significantly from these batteries. Traction batteries for material handling equipment are used for powering forklifts, pallet jacks, and other material-handling equipment. The high capacity and durability of lead-acid traction batteries and lithium-ion traction batteries make them perfect for these tasks. They ensure reliable performance and longevity in demanding environments, including warehouses and factories that rely on robust power supply. What are Semi-traction Batteries? Semi-traction batteries, also known as monobloc batteries, are engineered for exceptional performance in industrial settings where consistent power is required over extended periods. These batteries are specifically designed to handle repetitive and intense cycle use. A semi-traction battery is constructed with multiple electrically connected cell compartments containing electrodes, electrolytes, terminals, and separators. These cells can be arranged in series or parallel configurations to tailor the battery's performance to specific applications. Semi-traction batteries are engineered to endure harsh conditions, including wide temperature fluctuations (-30°C to 60°C) and exposure to shocks and vibrations. What are the Applications of Semi-traction Batteries? Semi-traction batteries are versatile and provide dependable power for various applications where the energy demand is moderate and consistent, but not as intensive as in heavy industrial use. These batteries are particularly effective in settings where a reliable energy source is needed over an extended period. They may be used for less intensive off-grid solar power systems and energy storage applications. Semi-traction batteries are particularly advantageous in golf carts and industrial cleaning equipment . Golf carts benefit from the battery’s ability to endure frequent discharge cycles, vibrations, and temperature variations, providing reliable power in varied conditions. Similarly, semi-traction batteries excel in industrial cleaning equipment, such as floor scrubbers, where they provide the necessary power to operate efficiently over long periods, withstanding the rough conditions typical in industrial environments. In the world of industrial equipment, the choice between traction and semi-traction batteries can significantly impact operational efficiency and longevity. Traction batteries provide robust, reliable power for heavy-duty applications, such as material handling equipment, while semi-traction batteries offer a dependable solution for moderate energy needs, like those found in golf carts and cleaning machines. By selecting the right type of battery for each specific application, businesses can ensure uninterrupted operations, reduce downtime, and maintain consistent performance in all conditions. UNIK recognises the diverse battery needs of different industries and is here to help you find the perfect fit. Contact us today to learn how our battery solutions can power your success.
As the world moves towards a future powered by renewable energy sources, the importance of energy storage systems, particularly batteries, has become increasingly apparent. Batteries play a crucial role in sustainable energy solutions by enhancing energy efficiency, stabilising the grid, and enabling the widespread adoption of renewable energy. This article explores the integral role of batteries in sustainable energy systems and how advancements in battery technology are driving the transition to a greener future. The Need for Energy Storage in Renewable Energy Systems Renewable energy sources like solar and wind power are inherently variable. Solar power is only generated during daylight hours, and wind energy depends on weather conditions. This variability poses a significant challenge to maintaining a consistent and reliable energy supply. Traditional energy grids, designed for steady power generation from fossil fuels, need help integrating these intermittent renewable energy sources. Energy storage systems, particularly batteries, are essential for overcoming this challenge. By storing excess energy generated during peak production periods, batteries ensure that energy is available when renewable energy sources are not generating power. This capability stabilizes the grid and maximizes the use of renewable energy, reducing reliance on fossil fuels. Battery Storage: A Cornerstone of Sustainable Energy Solutions Battery storage systems are a cornerstone of sustainable energy solutions. They provide several key benefits that support the transition to a more sustainable energy landscape: Grid Stability and Energy Efficiency: Batteries stabilize the grid by balancing supply and demand, preventing blackouts, and improving energy efficiency by storing excess energy for later use. Integration of Renewables Batteries enable the smooth integration of renewable energy sources into the grid, allowing for higher renewable penetration without compromising reliability. Decentralized Energy Solutions: Batteries support decentralized energy systems like microgrids, offering flexibility and reliability, especially in remote or underserved areas. Advancements in Battery Technology The effectiveness of battery storage systems in sustainable energy solutions largely hinges on the underlying technology. Lead-acid batteries have long been the tried and tested technology, but lithium-ion batteries are increasingly becoming the most widely used type in energy storage systems. Recent advancements in lithium-ion technology have significantly improved their energy density, lifespan, and safety, making them more suitable for large-scale applications. They offer a high energy density, allowing for more energy storage in a smaller space, which benefits both residential and commercial energy systems. Ongoing research enhances their performance and sustainability, including developing recycling processes to mitigate environmental impact. Beyond lithium-ion, researchers are exploring next-generation battery technologies, such as solid-state and flow batteries. These promising innovations offer even greater storage capacity, faster charging times, and longer lifespans, which could further boost the adoption of renewable energy. The Future of Sustainable Energy with Battery Storage The future of sustainable energy is inextricably linked to the development and deployment of advanced battery storage systems. As renewable energy sources grow, the demand for efficient, reliable, and scalable energy storage solutions will increase. Batteries will be pivotal in this transition, enabling a more resilient and sustainable energy grid. Governments and businesses worldwide recognize battery storage's importance in achieving their sustainability goals. Investments in battery technology are growing, and innovative projects are being launched to demonstrate the potential of batteries in real-world applications. Conclusion Batteries are more than just a component of sustainable energy systems—they are the linchpin that holds them together. By providing the necessary storage and flexibility, batteries enable the effective integration of renewable energy sources, enhance energy efficiency, and contribute to grid stability. As technology advances, batteries' role in sustainable energy solutions will become even more critical, paving the way for a cleaner, more sustainable future. By embracing battery storage as a key element of the energy transition, we can unlock renewable energy's full potential and move closer to a world powered by sustainable energy solutions.
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