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.

On the occasion of the approaching traditional Chinese festival, the Dragon Boat Festival, AOTELEC sincerely extend our festival greetings to you. We wish you a happy life and all the best! According to the legal holiday schedule in China, our company will have a three-day holiday from May 31, 2025 to June 2, 2025, and resume normal work on June 3. If you have any urgent matters to contact us during this period, we will do our best to respond to your needs in a timely manner. However, due to limited resources during the holiday period, the response may be slightly delayed. We hope to have your understanding. For the orders currently under negotiation, we suggest that you communicate with us in advance about the order details and requirements so that we can arrange production and delivery for you in a timely manner after the holiday to ensure the smooth progress of the project. For customers who have placed orders, we will make corresponding preparations before the festival.

As the global energy transition accelerates, sodium-ion batteries (SIBs) are emerging as a critical complement to lithium-ion technologies, thanks to their abundant resources and low cost. Today, a revolutionary advancement enters the market: ultra-stable sodium metal chips have achieved industrial-scale production, marking a new era in SIB commercialization. Technological Leap: Redefining Sodium Metal Anode Standards Traditional sodium metal anodes have long faced three major challenges: unstable interfaces due to high reactivity, safety risks from dendrite growth, and oxidation sensitivity during processing. The newly developed sodium metal sheets overcome these barriers through three key innovations: 1. Ultra-High-Purity Base Material (≥99.99%) A vacuum distillation–zone melting hybrid process reduces impurities to <10 ppm (90% lower than industry standards), minimizing side reactions. Third-party tests confirm 500+ cycles at 1C with 91% capacity retention. 2. Biomimetic Composite Interfacial Layer An atomic-layer-deposited (ALD) artificial SEI layer delivers: Ionic conductivity of 8.3×10⁻³ S/cm (near liquid-electrolyte levels) 98% dendrite suppression (validated by synchrotron in situ imaging) 72-hour air stability (<0.1% oxidation weight gain without encapsulation) 3. Modular Thickness Control (0.05–1.2 mm) A precision rolling technology enables customization for diverse battery systems: (1)0.05 mm sheets: For cells exceeding 200 Wh/kg (2)0.8 mm standard: Compatible with hard carbon/Prussian blue cathodes (3)1.2 mm reinforced: Designed for long-duration energy storage Industrialization: From Lab to Gigawatt-Scale Production Current milestones include: (1)Pilot phase: Co-developed 280 Ah energy storage cells with CATL (185 Wh/kg, 82% capacity retention at -30°C) (2)Production lines: 1,000-ton/year capacity in Sichuan (Q4 2024), scaling to 5,000 tons by 2025 (3)Cost: Projected at $50/kg at scale (1/5 the price of lithium metal anodes material) Applications: Transforming Energy Storage Across Industries 1. Grid-Scale Storage Enables 4+ hour systems with LCOS of $0.08/kWh Secured 200 MWh pilot order from SPIC 2. Electric Mobility Eliminates winter range anxiety in A00 EVs (76% range retention at -20°C) Automotive-grade packs (with BYD) to launch in 2025 3. Consumer Electronics 0.3 mm flexible sheets unlock wearable device potential

As the International Workers' Day approaches, our company hereby extends its festival greetings to you. Meanwhile, in order to facilitate your advance business arrangements, the relevant matters regarding the May Day holiday of our company are hereby notified as follows: Our company will have a holiday from Thursday, May 1st, 2025 to Monday, May 5th, 2025, totaling 5 days. Normal work will resume on Tuesday, May 6th. If you have any urgent matters to contact us during this period, we will do our best to respond to your needs in a timely manner. However, the reply may be slightly delayed due to limited resources during the holiday. We hope for your understanding. For the orders under negotiation, we suggest that you communicate with us in advance about the order details and requirements so that we can promptly arrange production and delivery for you after the holiday, ensuring the smooth progress of the project. For customers who have placed orders, we will make corresponding preparations before the holiday and resume processing as soon as possible after the holiday to minimize the impact of the holiday on the order delivery time. All along, we have been extremely grateful for your support and trust in our company's lithium battery materials and equipment business. We are well aware that your satisfaction is the driving force for our progress. Thank you again for your understanding and support. I wish you all the best and a pleasant mood during the May Day holiday!

In the internal structure of lithium batteries, there is a seemingly insignificant key component that plays a decisive role in battery performance and safety - the lithium battery separator. From the appearance, it is just a thin film, with a thickness usually ranging from a few micrometers to tens of micrometers, resembling a fraction of a human hair. However, its interior is full of hidden wonders, filled with a dense array of micro-pores with diameters at the nanometer level, which form a unique microstructure. The main functions of lithium battery separators are twinning: Firstly, they act as a "physical barrier" between the positive and negative electrodes. By virtue of their non-conductive nature, they effectively prevent direct contact between the positive and negative electrodes, avoiding short circuits and laying a solid foundation for the safe operation of the battery. Secondly, it is a dedicated "high-speed channel" for lithium ions, allowing lithium ions in the electrolyte to freely shuttle between the positive and negative electrodes, ensuring the smooth progress of the battery's charging and discharging process. In simple terms, the separator is like a strict "traffic controller", allowing only lithium ions to pass through while keeping other "interfering factors" out. From the perspective of material, given that the electrolyte of lithium batteries is mostly an organic solvent system, this requires that the separator material must have good resistance to organic solvents. At present, the mainstream separator materials for lithium batteries are high-strength film-like polyolefin porous membranes, among which polyethylene (PE) and polypropylene (PP) microporous separators are the most widely used. PE diaphragms have relatively excellent low-temperature resistance and are relatively soft in texture. PP diaphragms are more heat-resistant, have a lower density than PE, and also have a higher melting point and closed-cell temperature. In practical applications, to meet the strict requirements for battery performance in different scenarios, people often combine PE and PP to create double or triple-layer composite separators, such as the common three-layer PP/PE/PP separator, which integrates the advantages of both materials and greatly enhances the comprehensive performance of the separator. Although lithium battery separators are small, they contain numerous advanced technologies and complex processes. They are one of the core components that ensure the efficient and safe operation of lithium batteries and play an indispensable role in promoting the vigorous development of the new energy industry.

Recently, the company a number of lithium battery production key equipment - lithium battery die-cutting machine, ultrasonic spot welding machine, vacuum pre-sealing machine, top side sealing machine and stacking machine, is orderly loading, will cross the mountains and seas, sent to the hands of foreign customers. Lithium battery die-cutting machine as the "star equipment" of this shipment, with its high-precision cutting technology, can control the electrode cutting error within a very small range, effectively improve the consistency and stability of battery production, to meet the customer's stringent requirements for high-quality batteries. Ultrasonic spot welding machine through ultrasonic vibration to achieve solid welding between metals, solid and beautiful solder joints, greatly improve the conductivity and safety of the battery, once launched, it has been favored in the international market. The vacuum pre-sealing machine provides a reliable guarantee for the battery packaging link, which can pre-pack the battery in a vacuum environment, effectively eliminate the internal air, prevent the battery from oxidizing during subsequent use, and extend the battery life. The top side sealing machine uses advanced heat sealing technology to ensure that the battery is tightly sealed and the risk of leakage is eliminated. With its efficient laminating speed and excellent laminating accuracy, the laminating machine greatly improves the battery production efficiency, helps customers reduce production costs, and enhances market competitiveness. The successful shipment overseas is inseparable from the company's continuous investment in technology research and development and strict control of product quality. The company has set up a research and development team composed of senior experts and technical backbone in the industry to constantly explore innovation and optimize equipment performance. In the production process, the introduction of advanced production management system, each process for strict quality testing, to ensure that each equipment to meet the international first-class standards. All along, we uphold the "customer first, quality first" business philosophy, not only to provide customers with quality equipment, but also to provide a full range of after-sales service, timely response to customer needs, to solve customer worries. The smooth delivery of the equipment further deepened the company's cooperation with foreign customers, and laid a solid foundation for the future in-depth expansion in the international market.

Winder: Precision craftsman for battery molding The winding machine is the core equipment that makes the positive and negative electrode sheet and diaphragm wind into cell in a specific sequence during the manufacture of lithium battery. Its winding precision is very important, which directly affects the internal structure and performance consistency of the cell. With the development of technology, today's winding machines are moving in the direction of high speed, high precision and intelligence. The new winding machine adopts advanced tension control technology, which can accurately adjust the tension of the positive and negative electrode sheet and diaphragm during the winding process, ensure that the winding is tight and uniform, avoid wrinkles, dislocation and other problems, so as to effectively improve the energy density and safety of the cell. Coater: key equipment for electrode coating The coating machine is responsible for uniformly coating the positive and negative electrode materials on the collector fluid, and its coating quality has a decisive influence on the charge-discharge performance and life of the battery. In recent years, the coating technology has been continuously innovated, from the traditional scraper coating to the slit coating, transfer coating and other more advanced methods. Slit coating technology has become the mainstream because of its high precision, high speed and good coating uniformity. It can precisely control the thickness and width of the coating, and the coating thickness deviation can be controlled within a very small range, so that the consistency of the electrode coating is greatly improved. At the same time, the intelligent degree of the coating machine is also improving, through the automatic control system, can realize the real-time monitoring and adjustment of the coating process, effectively improve the production efficiency and product quality stability. Key Manufacturing materials: Determinants of battery performance Positive electrode material The cathode material is the key material that determines the energy density and output voltage of the lithium battery. Common cathode materials are ternary materials (such as lithium nickel-cobalt manganate, lithium nickel-cobalt aluminate) and lithium iron phosphate. Ternary materials have a high energy density and can provide more powerful power output for batteries, which is suitable for fields such as electric vehicles with high mileage requirements. The lithium iron phosphate material, with its excellent safety, long cycle life and low cost advantages, occupies an important position in the field of energy storage and some cost-sensitive application scenarios. With the deepening of technology research and development, new cathode materials continue to emerge, such as the research and development of high-nickel ternary materials is committed to further improve the energy density, and the modification of lithium iron phosphate materials is focused on imp...

In today's era of rapid development of science and technology, lithium batteries, as an efficient and environmentally friendly energy storage equipment, have been widely used in various fields, from our daily use of smart phones, laptops, to electric vehicles, energy storage power stations, lithium batteries are everywhere. Its emergence has not only changed our way of life, but also injected a strong impetus into the energy revolution and sustainable development, all of which cannot be separated from advanced lithium battery manufacturing technology. Lithium battery manufacturing is a complex and delicate process involving several key links. The first is the preparation of raw materials, mainly including lithium, cobalt, nickel and other metal materials, as well as electrolyte, diaphragm and other auxiliary materials. The quality and purity of these raw materials directly affect the performance and safety of lithium batteries. For example, the quality of lithium ore determines the energy density of the battery, and high-purity lithium materials can make the battery store more electricity, thereby improving the battery life of the device. Electrode manufacturing is one of the core links of lithium battery manufacturing. By mixing the active material, conductive agent and binder to make a slurry, and then coating on the metal foil, after drying, rolling and other processes to form a specific performance of the electrode. The choice of cathode material plays a key role in the energy density and charge and discharge performance of the battery, and the common lithium cobalt acid, lithium iron phosphate, ternary materials and so on. Different cathode materials have advantages and disadvantages in performance, such as lithium cobalt oxide has a high energy density, but the cost is high and the safety is relatively low; Lithium iron phosphate is safe and low cost, but the energy density is less. The next is the cell assembly, the positive plate, the diaphragm, the negative plate in accordance with a certain sequence of stacking or winding up, into the battery case, and then injected the electrolyte, after sealing, formation and other processes, and finally formed a complete cell. In this process, the process accuracy and environmental requirements are extremely high, and any small impurities or defects may lead to reduced battery performance and even cause safety problems. In addition to the above basic processes, lithium battery manufacturing also continues to emerge new technologies and new processes. For example, the research and development of solid-state battery technology is expected to solve the safety hazards and energy density bottlenecks of traditional liquid lithium batteries. Solid-state batteries use solid-state electrolytes instead of traditional liquid electrolytes, which can significantly improve the safety and energy density of batteries, and provide new possibilities for the long-term development of electric vehicles. In addition, the ...