Recently, another customized glove box of the company has completed the testing and debugging process and has been safely loaded onto the logistics vehicle. This equipment went from receiving the order to completing the delivery in accordance with the process, every step of which was carried out in a step-by-step manner, solely to enable customers to use reliable equipment as soon as possible. This glove box is made of 304 stainless steel, which is sturdy and durable. The purification and pressure control systems inside the box are very reliable, capable of controlling the oxygen and moisture content very low, making it suitable for lithium battery research, semiconductor manufacturing and other work with high environmental requirements. Before leaving the factory, we put in a lot of effort: conducting continuous 72-hour operation tests to check for any leaks, calibrating the stability of temperature and humidity, and conducting 12 checks in total, just to be afraid that the equipment might have problems when delivered to the customer, and to ensure that the customer can use it with confidence.  In the field of lithium battery equipment, we place great emphasis on customized services. We can completely adjust according to the specific needs of the customers. For instance, the production capacity of lithium batteries varies for different customers. Some require small-scale research and development, while others need large-scale production. We can adjust the working efficiency and size of the equipment based on the production capacity, ensuring that the equipment perfectly matches the production rhythm of the customers. If the customer has special requirements for the process, such as specific operation procedures during electrode preparation, we can also optimize the operation interface of the equipment, making the commonly used functions more convenient to use. We may even change the material and flexibility of the gloves to make the operation for workers more convenient and safer.

Electrode manufacturing equipment: Laying the foundation for battery performance As the core component for energy storage in lithium batteries, the preparation accuracy of electrodes directly affects the energy density and cycle life of batteries. Electrode manufacturing equipment is the key to controlling this process. In the positive electrode material coating stage, high-precision coating machines control the movement of the coating head through servo motors, evenly applying the positive electrode slurry onto aluminum foil. The coating thickness error can be controlled within ±1 micron - a precision equivalent to 1/50 of the diameter of a human hair. Domestic equipment manufacturer Prolong Intelligent has developed a double-sided synchronous coating machine that not only increases the coating efficiency to 1.8 times that of traditional equipment but also adjusts the coating thickness in real time through an infrared online monitoring system, effectively avoiding battery capacity decline caused by uneven coating. Rolling equipment is responsible for the "densification and shaping" process. After coating, the electrode sheets need to be rolled to the specified thickness by a rolling machine. This process must ensure that the electrode materials are closely combined while reserving reasonable pores for lithium ion migration. Yinheng Technology's intelligent rolling machine is equipped with a pressure feedback adjustment system that can automatically adjust the rolling pressure according to the characteristics of different electrode materials, keeping the density deviation of the electrode sheets within 2%, significantly improving the charging and discharging efficiency and cycle stability of lithium batteries. Industry data shows that electrode sheets produced by advanced rolling equipment can extend the cycle life of lithium batteries by more than 30%. Cell assembly equipment: Ensuring battery safety and consistency Cell assembly is the "precision assembly stage" of lithium battery production, covering key processes such as winding / stacking, packaging, and electrolyte injection. Each step requires precise operation by dedicated equipment. In the winding process, fully automatic winding machines wind the positive electrode, negative electrode, and separator into cells at a speed of 30-50 revolutions per minute, with a positioning accuracy of ±0.05 millimeters, ensuring that the positive and negative electrodes are perfectly aligned and avoiding short-circuit risks due to misalignment. Prolong Intelligent's multi-station winding machine also has a "defect recognition" function, which uses a machine vision system to detect scratches and impurities on the surface of the electrode sheets in real time. Once a problem is detected, the machine stops immediately, keeping the cell defect rate below 0.1%. Electrolyte injection equipment is directly related to the safety and performance stability of lithium batteries. As the "bridge" for lithium ion trans...

On the occasion of the 76th anniversary of the founding of the People's Republic of China and the approaching National Day holiday, all the staff of AOTELEC extend our most sincere holiday greetings to you and your team! We are grateful for your long-term trust and support. Your recognition has always been an important driving force for our progress. According to the legal holidays in China, our company's National Day holiday period is from October 1st to October 8th. During the holiday, to ensure that your business needs can be responded to promptly, we have established a special service team: If you have any urgent business inquiries, you can communicate through the 24-hour contact number of the dedicated customer manager; for routine order inquiries, document coordination and other needs, the staff will reply within 24 hours. Although the holiday has arrived, our service will not stop. We will ensure the smooth progress of your cooperation matters with an efficient and professional attitude. Once again, we wish you a happy holiday, good health and prosperous career!

In battery laboratories, where innovations in energy storage materials and designs are tested and refined, the choice of support structures and current collectors is critical to unlocking performance breakthroughs. Metal foams—porous, lightweight materials with high specific surface areas and excellent conductivity—have emerged as indispensable tools in this setting. Unlike dense metal sheets, their interconnected pore networks (typically 50–98% porosity) enable better active material loading, faster ion diffusion, and improved thermal management, making them ideal for studying electrode behavior, optimizing battery architectures, and developing next-generation energy storage systems. This article explores four key metal foams—nickel, copper, aluminum, and titanium—and their unique roles in advancing battery research.   1. Nickel Foam: The Workhorse for Cathode Research Nickel foam is the most widely used metal foam in battery laboratories, thanks to its high electrical conductivity (~1.4 × 10⁷ S/m), corrosion resistance in oxidizing environments, and compatibility with common cathode chemistries. Its 3D porous structure (pore sizes ranging from 100–500 μm) provides a robust scaffold for loading cathode active materials, addressing a major challenge in lab-scale electrode fabrication: ensuring uniform material distribution and stable electrical contact.   In lithium-ion battery (LIB) research, nickel foam is frequently used as a current collector for high-capacity cathodes like lithium nickel manganese cobalt oxide (NMC) and lithium nickel cobalt aluminum oxide (NCA). For example, lab teams testing NMC 811 (a high-nickel cathode prone to particle cracking) often coat the material onto nickel foam instead of traditional aluminum foil. The foam’s pores trap NMC particles, reducing mechanical stress during charge-discharge cycles and minimizing capacity fade. A 2024 study from Stanford’s Battery Lab demonstrated that NMC 811 electrodes on nickel foam retained 89% of their initial capacity after 500 cycles, compared to 72% on aluminum foil—data attributed to the foam’s ability to buffer volume changes.   Nickel foam also plays a pivotal role in lithium-sulfur (Li-S) battery research. Li-S cathodes suffer from "polysulfide shuttling," where soluble sulfur species migrate to the anode and reduce efficiency. Researchers use nickel foam as a host for sulfur, leveraging its large surface area to anchor sulfur particles and its nickel active sites to catalyze polysulfide conversion. Lab experiments show that sulfur-loaded nickel foam cathodes can achieve specific capacities of 1,200 mAh/g—nearly 80% of sulfur’s theoretical capacity—far exceeding the performance of sulfur-coated aluminum foil.   In sodium-ion battery (SIB) research, nickel foam supports cathodes like sodium nickel manganese oxide (NaNi₁/3Mn₁/3Co₁/3O₂), with its porosity accelerating sodium-ion diffusion in the larger Na⁺ ion (compared to Li⁺). Battery labs often tailor n...

In the burgeoning landscape of energy storage, sodium - ion batteries have emerged as a promising alternative to their lithium - ion counterparts, primarily due to the abundant availability of sodium resources globally. Among the various materials being explored for sodium - ion batteries, Sodium Vanadium Phosphate (Na₃V₂(PO₄)₃, abbreviated as NVP) has garnered significant attention in recent times.   The Promise of Sodium - Ion Batteries As the world races towards a more sustainable energy future, the demand for efficient and cost - effective energy storage solutions is skyrocketing. Lithium - ion batteries, which currently dominate the market, face challenges such as limited lithium reserves and high costs associated with lithium extraction. Sodium, on the other hand, is the sixth most abundant element in the Earth's crust and is widely available in seawater and salt mines. This abundance makes sodium - ion batteries an attractive option for large - scale energy storage, including grid - scale applications and electric vehicles.   NVP: Structure and Basics NVP belongs to the family of polyanionic phosphate materials. It features a stable NASICON(Na Super Ionic CONductor) - type three - dimensional structure. This unique structure provides several advantages. The open framework of the NASICON structure allows for fast sodium - ion diffusion, creating rapid diffusion channels for sodium ions to move in and out during the charging and discharging processes of the battery. Additionally, the strong covalent bond interactions between the PO₄³⁻ groups contribute to the high structural stability of NVP. During charge - discharge cycles, NVP experiences only a relatively small volume change of about 8.26%, which is crucial for ensuring the long - term cycle stability of sodium - ion batteries.     Electrochemical Performance of NVP In terms of its electrochemical performance, NVP exhibits distinct characteristics. During charging and discharging, NVP shows two prominent electrochemical platforms. One is near 1.6 V, corresponding to the V²⁺/V³⁺ redox couple, and the other is around 3.4 V, associated with the V³⁺/V⁴⁺ redox reaction. At 3.4 V, a reversible two - phase reaction occurs, represented by the equation Na₃V₂(PO₄)₃↔NaV₂(PO₄)₃, which can deliver a specific capacity of approximately 118 mAh g⁻¹.   However, like many electrode materials, NVP also has its limitations. The (PO₄) tetrahedra in the NVP lattice have low electrical conductivity, which isolates the V atoms, resulting in poor intrinsic electronic conductivity. Moreover, during repeated charge - discharge cycles, NVP is susceptible to significant structural stress and volume changes. These factors lead to slow sodium - ion diffusion kinetics, severely restricting its cycling stability and rate performance, and thus hindering its widespread commercial application.   Recent Advancements in NVP - Based Materials   1. Carbon Material Modification One of the...

The manufacturing process of sodium-ion batteries can generally be divided into several key steps: raw material preparation, cathode and anode material production, electrolyte and separator preparation, electrode fabrication, cell assembly, and finished product testing and inspection. Compared to the production process of lithium-ion batteries, sodium-ion batteries differ in raw material selection and certain process steps, but the overall workflow is similar. Their packaging forms are alike (cylindrical, pouch, prismatic aluminum shells, etc.), their production processes largely overlap, and their production lines are compatible (including electrode manufacturing and cell assembly). The main distinction lies in the fact that sodium-ion batteries can use aluminum foil as the anode current collector, allowing both cathode and anode tabs to be connected using aluminum tabs. This simplifies the tab welding process. Raw Material Preparation The main raw materials for sodium-ion batteries include cathode materials, anode materials, electrolyte, separators, and battery casings. The selection and quality of these materials directly impact the battery's performance and lifespan. Cathode and anode materials are the core components of sodium-ion batteries, and their performance differences determine the battery's energy density and charge-discharge efficiency. Electrolyte serves as the medium for sodium-ion transport within the battery. Separators are used to isolate the cathode and anode, preventing short circuits. Battery cases are critical components that protect the battery structure and ensure sealing integrity. Cathode Material Preparation The cathode material is a critical component of sodium-ion batteries. Commonly used cathode materials include polyanionic compounds, layered oxides, and Prussian blue analogs. Among these, polyanionic cathode materials have become a research focus due to their stable structure and excellent cycling performance. Synthesis methods include solid-state reactions, sol-gel processes, and hydrothermal methods. The electrochemical performance of cathode materials can be enhanced by optimizing synthesis conditions and employing doping modifications. Anode Material Preparation Common anode materials include carbon-based materials and alloy-based materials. Carbon-based materials, known for their high conductivity and stability, are widely used in sodium-ion batteries. Preparation methods such as pyrolysis and chemical vapor deposition (CVD) are employed, followed by coating and drying processes. The electrochemical performance of anode materials can be improved by controlling pore structure and specific surface area. Electrolyte and Separator Preparation The composition of the electrolyte directly affects the ionic conductivity and stability of the battery. The electrolyte primarily consists of a solute, solvent, and additives—typically sodium salts dissolved in organic solvents. Common solvents include esters and ethers, wh...

Lithium-ion batteries (LIBs) serve as the cornerstone of modern energy storage systems, with their performance heavily dependent on the selection and optimization of electrode materials. Among various anode materials, high-carbon graphite mesocarbon microbeads (MCMB) have emerged as a prominent candidate due to their unique structural characteristics and superior electrochemical properties. This article explores the application of high-carbon graphite MCMB in LIB anodes, focusing on its material properties, performance advantages, and practical applications. High-carbon graphite MCMB is a spherical carbon material derived from mesophase pitch through thermal treatment. Its microstructure exhibits a highly ordered layered arrangement, which provides excellent electrical conductivity and mechanical stability. Technical specifications reveal a uniform particle size distribution, with D10, D50, and D90 values of 9.534 μm, 16.342 μm, and 27.019 μm, respectively. This consistency enhances electrode compaction density and cycling stability. Additionally, the material’s tap density (1.211 g/cm³) and specific surface area (1.165 m²/g) optimize lithium-ion transport pathways, minimizing polarization during charge-discharge cycles. In terms of electrochemical performance, high-carbon graphite MCMB demonstrates an impressive initial discharge capacity of 340.5 mAh/g and a first-cycle efficiency of 94.3%. The high initial efficiency indicates minimal irreversible capacity loss during the first cycle, which is crucial for improving overall energy density and cycle life. Furthermore, the material exhibits exceptional purity, with a fixed carbon content of 99.959% and a moisture content as low as 0.035%, ensuring stability under high-voltage and high-temperature conditions. A key advantage of high-carbon graphite MCMB is its broad applicability across different battery types. It performs exceptionally well in both power batteries and cylindrical cells. In the context of electric vehicles, the material’s long cycle life and high-rate capability meet the demands for durability and fast charging. For portable electronics, its high energy density and structural stability provide reliable power solutions. Moreover, the material’s low moisture content and high purity make it suitable for high-end battery applications with stringent environmental requirements. From an industrial perspective, the production of high-carbon graphite MCMB has reached a mature stage, with technical parameters and performance metrics aligning with industry-leading standards. Strict control over particle size, density, and purity during manufacturing ensures consistent and high-quality raw materials for battery producers. Additionally, suppliers offer a one-year limited warranty and lifetime technical support, reducing user risk and enhancing market competitiveness. In conclusion, high-carbon graphite MCMB stands out as an ideal anode material for lithium-ion batteries, owing to its unique st...

AOTELEC Company has recently successfully completed the shipment of core equipment such as lithium battery sealing machines and winding machines, which are about to be delivered to important overseas partners. This delivery is not only a direct demonstration of the company's technical strength, but also pushes the cooperation between both sides into a brand-new stage. In the lithium battery production process, each piece of equipment has a clear division of labor and is of vital importance. The sealing machine, through high-precision welding technology, tightly seals the battery casing and internal components, preventing electrolyte leakage from the source and ensuring the stability and service life of the battery operation. The winding machine relies on an intelligent control system to precisely stack and wind positive and negative electrode sheets and separators. The process accuracy directly determines the core performance of the battery such as capacity and internal resistance. The grooving machine specializes in the processing of cylindrical battery casings. Through precise rolling and forming, it ADAPTS to the grooves, laying a solid foundation for battery sealing and assembly. The spot welding machine uses pulsed current to achieve a firm fusion of electrodes and electrode sheets, ensuring the efficient conduction of electrical energy. The slitting machine, with its precise cutting technology, cuts electrode sheets and diaphragms into standard specifications, enhancing material utilization and product uniformity. The coating machine evenly coats the active slurry onto the metal foil, playing a crucial role in the energy density and charging and discharging efficiency of the battery. We would like to express our sincere gratitude to our foreign customers for their long-term trust and support. We will continue to provide our customers with high-quality equipment and comprehensive technical services, helping them enhance their competitiveness in the field of lithium battery production and jointly create new glories for the industry.