
2026-10-04
Tetrabasic lead sulfate(4BS, chemical formula PbO·PbSO₄) is a critical material in the production of modern lead-acid batteries. Unlike traditional lead trioxide (3BS), which is formed during the standard plate curing process, 4BS provides significantly higher initial capacity, improved cyclic resistance and increased corrosion stability of the grids. For industrial manufacturers and purchasers, understanding the technology for obtaining 4BS, as well as the factors shapingprice for tetrabasic lead sulfate from the manufacturer, is the basis for optimizing production costs and improving the quality of the final product.
With increasing demands on the reliability of energy storage systems, especially in the telecommunications, renewable energy and electric transport sectors, the transition to technologies using 4BS is becoming not just a trend, but an engineering necessity. Nanjing Qiantan Energy Storage Technologies LLC, with more than 30 years of experience in the industry and implementing turnkey projects in Russia, Asia and the Middle East, offers comprehensive solutions for the implementation of 4BS technologies, providing a stable supply of high-quality raw materials and technological support at all stages of production.
The traditional process for producing lead battery active compounds typically results in the formation of lead trioxide (3BS). However, 3BS crystals have a relatively small size and low packing density, which limits their effectiveness in deep discharge cycles. Tetrabasic lead sulfate (4BS) is a compound with a more complex crystal structure, which is formed under specific thermal conditions for curing the paste.
Key technical benefits of using 4BS include:
From an engineering perspective, converting to 4BS requires strict control of the temperature profile when curing the plates. An error in the heat treatment mode can lead to incomplete formation of the 4BS phase or, conversely, to structure degradation. That is why suppliers such as Nanjing Qiantan Energy Storage Technology LLC pay special attention not only to the supply of raw materials, but also to consulting on setting up technological lines.
The query “tetrabasic lead sulfate price” often arises from purchasing specialists seeking to optimize production costs. It is important to understand that the price of this material is not static and depends on a number of technical and market factors. Buying directly from a manufacturer such as Nanjing Qiantan Energy Storage Technology LLC eliminates intermediary markups and achieves transparent pricing.
The main component of cost is the price of lead on world exchanges (LME). However, high-purity lead (usually at least 99.99%) is required to produce quality 4BS. The presence of impurities such as iron, copper or antimony in excess of permissible limits can negatively affect the self-discharge of the battery and its internal characteristics. Manufacturers who use low-quality recycled lead without proper purification may offer lower prices, but the risk of defective finished products increases many times over.
The 4BS process requires high temperature curing (often above 100°C for long periods of time) and precise humidity control. This is an energy-intensive process. The price reflects the costs of electricity, gas heating and depreciation of specialized equipment for the curing chambers. Modern automated lines used by the partners of Nanjing Qiantan Energy Accumulation Technologies LLC make it possible to reduce specific energy costs, which has a positive effect on the final price for the client.
Not all 4BS is the same. The size of the crystals and their distribution throughout the volume of the active mass are critically important. Crystals that are too large can impair contact with the electrolyte in the initial stages, while crystals that are too small will not provide advantages in cycling. The manufacturer must ensure a stable particle size distribution. Monitoring this parameter requires expensive laboratory equipment and qualified personnel, which is also included in the cost of the product.
The geography of supplies plays a significant role. For Russian buyers, the presence of warehouses in the Russian Federation or well-functioning logistics chains from China is important. Nanjing Qiantan Energy Storage Technologies LLC implements projects in Russia, Iran, Turkey and other countries, having experience in optimizing logistics. Large wholesale quantities always have a lower unit cost due to savings on transportation and production planning.
| Factor influencing price | Description of impact | Recommendation for the buyer |
|---|---|---|
| Market price of lead | Direct correlation: an increase in the price of LME increases the cost of 4BS. | Monitor LME trends and fix prices when conditions are favorable. |
| Lead Purity (Pb) | SRM or higher grade lead is more expensive but guarantees quality. | Require a Certificate of Analysis (COA) indicating the impurity content. |
| Energy intensity of the process | High heat treatment costs increase production costs. | Select manufacturers with energy efficient curing ovens. |
| Order Quantity (MOQ) | Large quantities reduce logistics and operating costs. | Plan purchases using quarterly or annual contracts. |
| Logistics route | Distance and customs procedures affect the final price. | Use suppliers with localized warehouses or direct flights. |
In order for tetrabasic lead sulfate to exhibit its properties, it is necessary to adhere to strict technological disciplines at the battery plant. Nanjing Qiantan Energy Storage Technology LLC provides customers not only with material, but also with expertise in setting up processes.
Pasta preparation:The paste recipe for 4BS differs from the standard one. It is necessary to use special nucleating additives (seed crystals), which initiate the growth of 4BS crystals instead of 3BS. The absence or incorrect dosage of these additives will lead to a mixture of phases, which eliminates the advantages of the technology.
Curing mode:This is the most critical stage. The process is usually divided into two stages:
Violation of the temperature gradient can cause cracking of the plates. The company's engineers help configure curing ovens for specific customer equipment, be it old Soviet lines or modern automated complexes.
Quality control:Each batch of 4BS must undergo X-ray diffraction (XRD) to confirm the proportion of 4BS phase (target value typically >80-90%). Bulk density and specific surface area are also controlled.
When deciding to switch to 4BS technology, plant management needs to clearly understand the difference in performance characteristics. Below is a comparison for typical stationary and traction batteries.
| Parameter | Traditional technology (3BS) | 4BS Technology (Tetrabasic Lead Sulphate) | Engineering comment |
|---|---|---|---|
| Initial capacity | 85-90% of nominal value (break-in required) | 95-100% of face value (immediately after formation) | 4BS gives a win at the start, which is important for urgent shipments. |
| Cyclic life (deep discharge) | 300-500 cycles (up to 80% remaining capacity) | 600-900+ cycles (up to 80% remaining capacity) | A key advantage for traction batteries and renewable energy systems. |
| Grating corrosion rate | High (especially at elevated temperatures) | Slow (protective layer 4BS) | Extends battery life by 20-30%. |
| Sensitivity to the manufacturing process | Low (forgiving mistakes in drying) | High (requires precise temperature control) | Modernization of the molding area is necessary. |
| Production cost | Lower (less energy consumption) | Higher (additional costs for energy and additives) | Pays for itself by increasing the service life of the product. |
The table shows that for applications where durability and depth of discharge are important (for example, warehouse equipment, solar power plants), 4BS technology is the only choice. For cheap starter batteries operating in buffer mode with surface discharges, switching to 4BS may not be economically justified due to increased costs.
Tetrabasic lead sulfate is used in the manufacture of a wide range of battery products. Nanjing Qiantan Energy Storage Technology LLC provides solutions for the following segments:
Forklifts, electric pallet trucks and urban electric vehicles require batteries that can withstand daily deep discharges. Using 4BS allows longer service intervals and overall battery life, reducing total cost of ownership (TCO) for the end user. The company's product range includes EV series lead-acid traction batteries designed to meet these requirements.
Batteries for solar stations operate in harsh cyclic modes and often at high temperatures. OPzV and CG gel batteries produced using 4BS technologies demonstrate excellent resistance to electrolyte separation and corrosion, which is critical for off-grid power systems in remote regions of Russia, Iran and Central Asia.
For communications base stations and data centers, reliability is a priority. CP series stationary batteries and CL 2V tubular monoblocks, created using advanced materials, provide backup power for decades. 4BS helps maintain capacity throughout its service life, ensuring that the battery will deliver the specified current even after 10 years of use in buffer mode.
The market for chemical materials for batteries is saturated with offers, but not all manufacturers have the necessary technical base. When choosing a partner for the supply of 4BS and components, you should be guided by the following criteria:
Engineering tip: Don't go for the lowest price per ton. Cheap 4BS with unstable crystal morphology can lead to the failure of an entire batch of batteries, which will cost much more. Choose a supplier that can ensure batch-to-batch consistency.
The main difference is the crystal structure and density. 4BS (tetrabasic lead sulfate) has a larger, more stable structure that provides better lattice bonding, high initial capacity, and resistance to deep discharge cycles. 3BS (lead trioxide) is formed faster and cheaper, but has a shorter life in cyclic modes.
Technically this is possible, but it is not always economically feasible. Starter batteries are rarely deeply discharged, so the cycling benefits of 4BS are not fully realized. However, 4BS can improve inrush currents and life under frequent starting or start-stop applications.
4BS should be stored in a dry, ventilated area, protected from moisture. The ingress of water can initiate unwanted hydration processes. The packaging must be sealed. Shelf life is limited, so it is recommended to use the material within 3-6 months after production to maintain optimal reactivity.
Yes, the price of lead is a basic component of the cost. However, the share of additives, energy costs for heat treatment and logistics is also significant. Therefore, fluctuations in the exchange price of lead are passed on to the 4BS price, but not in a 1:1 ratio due to fixed production costs.
Yes, the company positions itself as a full-cycle operator. In addition to supplying materials and equipment, we provide engineering support, assistance in setting up plate curing modes and personnel training. This is especially important when moving from 3BS to 4BS technology.
Tetrabasic lead sulfate is not just a chemical substance, but a technological key to the creation of a new generation of batteries with increased service life and reliability. For manufacturers focused on a long-term presence in the market and producing premium products, the introduction of 4BS is a strategically correct step.
When planning purchases, we recommend:
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Nanjing Qiantan Energy Storage Technology LLC is ready to become your reliable partner in production modernization. Our experience in Russia, Iran, Turkey and other countries, as well as a wide portfolio of solutions - from EV series traction batteries to stationary CL 2V systems - allows us to offer solutions tailored to your conditions. We help our customers reduce their carbon footprint and improve business efficiency through advanced battery technologies.
To obtain the current price list fortetrabasic lead sulfate, consultations on technological processes or discussion of a turnkey project, contact our specialists. We will provide the supply of quality materials and support at all stages of cooperation.
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