Featured Product

Lithium Battery Seals

Custom glass to metal seals tailored to meet the exact specifications of your lithium batteries, ensuring an impermeable barrier against gases and liquids for enhanced overall integrity of the battery casing. Capable of withstanding extreme temperatures and pressures, ideal for the rigorous demands of your lithium battery applications.
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Role of Glass to Metal Seals
in Battery Applications
 
  • Longevity and Reliability

    Glass-to-metal seals are used to ensure that the battery's internal components are protected from the external environment, preventing moisture ingress and gas leakage. This hermetic sealing is crucial for batteries that need to have a very long shelf life or must operate in harsh environments.

  • Structural Integrity

    Many high-performance batteries, especially lithium-based batteries, require glass-to-metal seals. Lithium is highly reactive, and its exposure to moisture or other environmental factors can lead to battery failure or, in extreme cases, hazardous reactions. Glass-to-metal seals are used in the battery end caps, ensuring that the electrolyte and lithium remain contained and secure.

  • Safety and Reliability in Medical Implants

    In medical applications, such as implantable pacemakers or defibrillators, battery failure is not an option. Glass-to-metal seals are used to encase the battery, providing a reliable power source for these life-saving devices. The seal must be perfectly hermetic to prevent body fluids from entering the battery compartment, which could lead to device failure or harm to the patient.

  • Anti-Corrosion

    The anti-corrosion capabilities of glass-to-metal seals (GTMS) are essential in lithium thionyl chloride batteries, safeguarding structural integrity and operational safety. These seals effectively prevent electrolyte leakage and mitigate environmental corrosion, significantly enhancing battery longevity and reliability.

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We Specialize in:
Lithium Thionyl Chloride Battery Terminal
Lithium thionyl chloride (Li-SOCl2) batteries are a type of primary (non-rechargeable) battery known for their high energy density, long shelf life, and ability to operate over a wide range of temperatures. These characteristics make them particularly suitable for applications where long-term, reliable power is needed without replacement or recharging, such as in remote monitoring equipment, military electronics, utility meters, and emergency location beacons.
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Guide to Lithium Thionyl Chloride Battery Safety

 
  • Hermetic Sealing

    Li-SOCl2 batteries contain a highly corrosive electrolyte that is dangerous if leaked. Glass-to-metal seals are used to hermetically seal the battery casing, preventing the escape of thionyl chloride gas and ensuring that no external moisture can enter the battery. This is critical for both the safety and longevity of the battery.

  • Reliability in Harsh Conditions

    These batteries are often used in harsh environmental conditions, including extreme temperatures and high humidity. Glass-to-metal seals are essential for maintaining the integrity of the battery in such conditions, ensuring that it remains operational and safe over its intended lifespan.

  • Safety Concerns

    The chemical components of Li-SOCl2 batteries can react violently if exposed to water or if the battery is damaged. The hermetic seal provided by the glass-to-metal seal is crucial for preventing any external breach that could lead to a hazardous situation.

  • Electrical Insulation and Conductivity

    Glass-to-metal seals also serve an electrical function by providing a conductive path for the battery's terminals while insulating them from the battery casing. This is crucial for preventing short circuits and ensuring the battery delivers power efficiently to the device it powers.

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Manufacturing Considerations

 
 

Material Compatibility

The materials used for the seal must be chemically compatible with thionyl chloride and lithium, as well as matched for thermal expansion to prevent cracking or leaking over the battery's temperature operating range.

Precision Engineering

The design and manufacturing process must ensure a tight, leak-proof seal that can withstand the internal pressures generated by the battery, especially in high-temperature conditions.

Quality Assurance

Rigorous testing is essential to ensure the seals are defect-free and provide a reliable hermetic barrier. This includes leak testing, pressure testing, and ensuring the electrical properties meet the required specifications.
Choose Spcera:
A Premium Glass Preform Manufacturer from China
We are a premier hermetic sealing glass manufacturer in China specializing in the research and production of high-quality sealing glass powder and related products and solutions. Our goal is to protect critical components from moisture, dust, thermal variations, and shocks for optimal performance and longevity in demanding applications. Choose us for our shared commitment to delivering products that embody precision, durability, and unparalleled quality.
30+
Years of Experience
20+
Members of QC Team
11+
Members of R&D Team
600+
Annual Production in Tonnes
39+
Patents Granted
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