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Industry Application

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Sealing method and recommended adhesive for battery cells

2025-01-15

The battery market is in a stage of rapid development and innovation, mainly driven by the demand for electric vehicles (EVs). Electric vehicles have increasingly high requirements for batteries, especially in terms of energy density, lifespan, and charging speed. The advancement of solid-state battery technology has brought new hope for improving the safety and performance of batteries, especially the design of silicon anodes and lithium metal anodes, which can further enhance the performance of batteries.In this fiercely competitive market, battery manufacturers are facing pressure to improve energy efficiency, reduce costs, and comply with strict regulations. For example, they need to ensure that battery products comply with the highest flame retardant standards (such as UL94V0) and do not contain harmful substances, such as PFAS, which are regulated by the European REACH regulation. With the increasingly fierce competition in the global electric vehicle market, major manufacturers are vying for market share and striving to provide advanced and cost competitive battery solutions. Square battery. cylindrical battery, soft pack batterySealing can also affect the mechanical stability and thermal management of batteries, which is crucial for maintaining optimal performance under various operating conditions. Therefore, choosing the appropriate sealing method is crucial for ensuring the reliability and safety of battery cells.The choice of sealing method depends on the specific requirements of the battery application and the ideal balance between performance, cost, and manufacturing complexity. Lithium battery packaging formAccording to the packaging form, lithium batteries can be divided into three forms: square, cylindrical, and soft pack. The packaging form refers to the packaging structure of a single lithium battery, and different packaging forms correspond to different manufacturing processes, as well as different forms of battery precision structural components. At present, the packaging technology route for lithium batteries mainly includes three forms: cylindrical, square, and soft pack. The…

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Elaplus Power Potting Solution – EP 1712 Epoxy Potting Material

2025-01-15

With the rapid development of electronic technology, the functions of various electronic devices have become increasingly complex, and higher requirements have been put forward for the stability and reliability of their performance. Especially in the packaging process of power modules and electronic components, the selection of encapsulation materials is crucial. The power module not only needs to withstand fluctuations in current, but also needs to cope with environmental pressures such as high temperature and high humidity. Therefore, the sealing material not only needs to have high hardness to prevent physical damage, but also needs to have excellent flame retardancy and waterproof and moisture-proof capabilities to ensure long-term stable operation of the equipment in various harsh environments.With the rise of emerging industries such as electric vehicles, 5G communication equipment, and smart homes, the working environment faced by power modules has become more complex. For example, in electric vehicles, the battery and power module need to maintain stable performance in multiple harsh environments such as high temperature, humidity, and vibration; In communication equipment, modules must not only have high temperature resistance, but also ensure long-term electrical stability and anti-interference. Therefore, selecting appropriate sealing materials has become the key to ensuring the long-term stable operation of electronic devices. Power sealing adhesive faces challenges✔ Hardness and protective balanceHigh hardness is required to prevent physical damage while maintaining appropriate toughness to avoid material embrittlement.✔ Flame retardancy and safetyIn environments with high temperatures or potential fire risks, it is necessary to ensure that the sealing material has flame retardancy to prevent the spread of fire.✔ Waterproof and moisture-proofHigh water absorption may lead to decreased performance or corrosion of electronic components, and waterproof and moisture-proof properties become key requirements.✔ High temperature resistance and adaptabilityThe power module often operates in high temperature environments, and the material needs to…

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Elaplus Case Study on Thermal Insulation Potting of Electromagnetics: Application of EP 1798A/B High Performance Epoxy Potting Material

2025-01-14

With the increasing development of electronic products, electromagnets, as important electrical components, have been widely used in many industries, especially in high-precision control, automation equipment, and power tools. However, electromagnets are subject to factors such as temperature rise, mechanical vibration, and environmental moisture during operation, which puts higher demands on their performance stability and service life. The selection of thermal conductive sealing materials is crucial to ensure the long-term reliable operation of the electromagnet.Electromagnets are often exposed to external vibrations, impacts, and extreme environmental conditions during operation, which puts higher demands on their long-term stability and mechanical strength. In order to ensure the continuous and efficient operation of the electromagnet, it is necessary to use sealing materials with excellent thermal conductivity, high hardness, good toughness, and temperature resistance to protect its internal components and effectively disperse the generated heat. Challenge: Heat dissipation problem of electromagnet in high temperature environment Requirements for thermal conductivityThe working environment of an electromagnet usually requires it to be able to quickly and effectively conduct heat from the inside to the outside. If the heat cannot be carried away in a timely manner, the temperature of the electromagnet will rapidly rise, affecting its normal operation and even causing malfunctions. The thermal conductivity of the sealing material must meet specific requirements to ensure that the electromagnet can operate stably for a long time.Solution: Yilian EP 1798A/B epoxy potting materialIn order to address the above challenges, Elaplus has launched EP 1798A/B two-component epoxy potting material, which provides an ideal thermal sealing solution for electromagnets due to its excellent performance characteristics. EP 1798A/B not only effectively dissipates heat and improves the stability of the electromagnet, but also resists external vibrations, impacts, and temperature changes, ensuring the long-term reliable operation of the electromagnet in high load and high temperature environments….

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Elaplus Case Study: Dam Sealing for Circuit Board

2025-01-14

Excellent heat dissipation and protection performanceAfter sealing with PUR 1680, the product successfully passed the high-temperature and high humidity test. The circuit board remained stable during long-term operation, and its thermal conductivity met the requirements of light to moderate heat dissipation, avoiding component overheating damage.Yilian has always been committed to providing high-quality and affordable adhesive solutions for the electronic manufacturing industry. We believe that this dam sealing solution can bring convenience and value to more electronic manufacturing enterprises, and we will continue to research and develop more products that meet market demand.If you are interested in our SIPC 1859 and PUR 1680, please feel free to contact us at any time for more technical support and product information. Let Yilian adhesive provide more reliable protection for your products!Tags: Dam enclosure glue · Dam enclosure glue · Circuit board enclosure glue · Circuit board sealing The sealing adhesive has a certain thermal conductivity coefficient: it ensures that the heat of the circuit board can be conducted in a timely manner, reducing the impact of high temperature on the components; Non brushed fence rubber: improves construction efficiency and avoids affecting product appearance or packaging quality due to brushed rubber materials; Affordable price: Control material costs, suitable for mass production.The following is our recommended combination of dam and sealant – dam sealant SIPC 1859 silicone adhesive and sealant PUR 1680 polyurethane sealant, which perform well in terms of performance and cost-effectiveness. Beginor Circuit Board Dam Sealing Solution1、 Dam sealant: SIPC 1859SIPC 1859 is a high-performance single component silicone sealant that is highly suitable for use as dam sealant. Its advantages include: No wire drawing, excellent molding effectIn the process of dam enclosure, wire drawing of adhesive materials can lead to defects in the packaging process, such as uneven colloid and leakage of sealing….

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Elaplus Case Sharing, solutions for bonding bottom cells of battery pack

2025-01-13

In the design and manufacturing process of battery packs, the adhesion performance of battery cells is one of the key factors to ensure battery stability, thermal management, and mechanical strength. Especially in modern electric vehicles (EVs), energy storage systems, and other high-performance devices, efficient heat dissipation, mechanical protection, and safety of battery packs are particularly important. In order to meet these stringent requirements, Elaplus recommends using its SIPA 1865 two-component addition molding silicone gel to provide an efficient and reliable solution for bonding the bottom cells of battery packs. Customer requirements:▶ Thermal conductivity: 0.8w/m.k▶ Drying time: 40-60 minutes▶ Tensile strength: 0.8-1.2MPa▶ Viscosity: 30000 to 80000Recommended products: SIPA 1865RTV SIPA 1865A/B silicone sealant is a two-component addition molded room temperature cured silicone rubber that can also be heat cured to form a strong and soft high toughness silicone rubber elastomer. Easy to mix and pour during operation, it can cure at any thickness at room temperature, with no by-products evaporating during the curing process and minimal volume change. The cured material has a wide range of temperature resistance, excellent resistance to cold and hot alternation, aging, and electrical insulation, as well as good moisture resistance, earthquake resistance, corona resistance, and leakage resistance. This product does not require the use of other primers and can bond most materials such as metal, plastic, ceramic, and glass. For bonding special materials such as PP and PE, specific primers need to be used. Flame or plasma treatment can also be applied to the surface of the bonded material as needed to improve bonding performance. Characteristics of adhesive products at the bottom of battery cells■ Red two-component addition molding■ 1:1 mixtureAllow for large mixing ratio errors■ Good adhesion to most substrates without the need for primerExcellent electrical insulation performanceMaintain elastic properties at a temperature of -45…

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Industrial Controller PCB Packaging Solution – Recommend SIPA 1850 Thermal Conductive Encapsulation compound

2025-01-08

In today’s rapidly developing industrial electronics field, controllers and various electronic modules are facing increasingly high performance requirements. Especially in high temperature and high power density working environments, how to effectively manage temperature and improve equipment reliability has become an important issue that urgently needs to be addressed. As a key solution for protecting electronic components and improving heat dissipation performance, PCB (printed circuit board) encapsulation technology plays a crucial role in these applications.Especially in high-performance electronic devices such as industrial controllers, automotive electronics, and LED driver modules, encapsulation materials not only need to have good thermal conductivity, but also need to provide long-term stable protection in harsh environments such as high temperature, high humidity, and vibration. In addition, for some equipment that requires maintenance or upgrading, the removability of the sealant is also an important factor that must be considered. Background and ChallengesWith the rapid development of industries such as intelligent manufacturing, automotive electronics, and green energy, industrial controllers and high-power electronic components often face the following challenges during operation:Heat dissipation issue: With the increasing power density of modern electronic devices, the amount of heat generated also increases. Especially for high-power equipment such as inverters, electric vehicle charging stations, and solar modules, heat dissipation has become a major challenge in improving system efficiency and safety.Environmental adaptability: Many industrial controllers need to work in harsh environments such as high temperature, humidity, vibration, etc. For these environments, ordinary sealant may not provide sufficient electrical protection, temperature resistance, and waterproof and moisture-proof properties.Long term reliability: With the increase of equipment usage time, traditional sealing materials may experience aging, cracking, and even detachment due to high temperature or mechanical stress, thereby affecting the stability and safety of the system.Detachability requirement: With the increasing frequency of equipment maintenance and upgrades, many electronic devices require…

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Elaplus Case Sharing, Disc Motor Stator Sealing

2025-01-08

The selection of sealing materials is crucial for the performance and reliability of products in the manufacturing process of modern motors and automotive electronics. Especially when facing harsh working conditions such as high temperature, vibration, moisture, solvents, and long-term operation, choosing a suitable sealing adhesive is particularly important. The Yilian EP 2025 series epoxy potting material, with its excellent performance, has been successfully applied to the potting protection of disc motor stators, solving the problem of motor protection for customers in high temperature environments.A certain customer is developing a disc motor and needs to seal the stator of the motor to ensure that it can work stably for a long time in high temperature environments. After multiple experiments and material selection, the customer has decided to use the Yilian EP 2025 series epoxy potting material as the potting material for this project. Customer demandThe stator of the disc motor of this customer needs to withstand high temperature environments during use, especially under high loads, and the working temperature of the motor can reach 150 ° C. In order to ensure that the motor does not malfunction at high temperatures and maintains good performance, customers have very strict requirements for sealing materials. The specific requirements are as follows:High temperature tolerance: The material is required to maintain stable performance at a high temperature of 150 ° C.Good adhesion and crack resistance: The sealing material should be able to tightly adhere to the surface of the motor stator to prevent cracks caused by thermal expansion differences.High thermal conductivity: The motor generates a large amount of heat during operation, and the material needs to have good thermal conductivity to ensure rapid heat dissipation and avoid overheating.Excellent electrical insulation: The motor stator requires efficient electrical insulation performance to prevent safety issues such as short circuits.Chemical…

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Elaplus Case Study，LED Optical Encapsulation Solution

2025-01-08

With the continuous expansion of LED technology in lighting, display, and other optical devices, the requirements for optical packaging materials are becoming increasingly high, especially in the manufacturing of high-performance LED light sources and optical modules. The stability, transparency, high temperature resistance, and anti-interference ability of materials have become key standards for measuring material quality. In this regard, Yilian’s SIPA 1840 is a high-purity two-component thermosetting organic silicon material, which perfectly solves these technical problems and has become an indispensable choice for many enterprises in the LED optical encapsulation process. Background: The demand and challenges of optical packagingThe application of optical devices in LED lighting fixtures is becoming increasingly widespread, not only dominating the traditional lighting field, but also playing an important role in multiple fields such as high-definition display, automotive lighting, and industrial applications. These LED optical modules typically require high transparency, excellent thermal stability, resistance to UV aging, and excellent resistance to mechanical shock and vibration. In addition, they also need to have strong resistance to moisture erosion and pollution.However, in various complex application environments, these requirements undoubtedly increase the challenges in the design and manufacturing process. For example, LED modules need to work stably in high temperature and humid environments, and avoid light decay caused by material aging to ensure that they maintain good optical properties during long-term use.Traditional optical packaging materials often have disadvantages such as insufficient transparency, susceptibility to yellowing, poor high-temperature resistance, and precision control is also a major challenge in the manufacturing process. Especially in the production process, if the curing is uneven or the curing time is too long, it may cause bubbles, textures, or uneven surfaces in the packaging layer, affecting the light efficiency and aesthetics of the LED light source. Therefore, when choosing packaging materials, how to ensure that the…

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Elaplus Submarine Cable Sealing Solution – Recommended PUR 1661

2025-01-08

With the continuous expansion of deep-sea operations, the sealing and protection of submarine cables have gradually become a focus of attention in the industry. Submarine cables are subjected to extreme environmental conditions, including high water pressure, corrosive saltwater, extremely low temperatures, and prolonged usage loads. Therefore, the sealing material of submarine cables not only needs to have excellent waterproof and moisture-proof performance, but also needs to maintain sufficient hardness and stability in extremely deep waters (such as 100 meters deep). Customer needs and challengesThe customer’s requirement is to use PU (polyurethane) material to ensure that the sealant has sufficient hardness and waterproofness to cope with high-pressure environments at a depth of 100 meters underwater. This demand places high standards on sealing materials:▶ Stability under high pressure environment: A depth of 100 meters underwater means that the cable will withstand high water pressure, so the sealing material must have excellent compressive strength and be able to withstand deformation or loss of function for a long time of use.▶ Waterproof and moisture-proof: The underwater environment has sufficient moisture, and the material must be effectively waterproof and moisture-proof, with extremely low water absorption to avoid material degradation after prolonged immersion.▶ Good adhesion: The sealing material needs to have good adhesion to the metal or plastic substrate outside the cable to ensure long-lasting and stable sealing effect.▶ Environmental protection and operability: Due to the high environmental requirements of underwater operations, it is particularly important to choose non-toxic and heavy metal free environmentally friendly materials. Moreover, the operability on site also needs to consider the process requirements and application convenience.To address the above challenges, Yilian recommends using the PUR 1661 series products (PUR 1661A/B), which is a two-component solvent-free polyurethane elastomer resin designed specifically for sealing, filling, and other fields.PUR 1661： Ideal sealing material for…

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