Lid Systems for Li-Ion Batteries
Advantages
SCHOTT´s Glass-to-Aluminum sealed (SCHOTT GTAS®) battery lid systems offer:
Depending on cell design, the battery can maintain higher capacitance and longer shelf life, even in harsh environment conditions such as extreme heat and cold.
SCHOTT offers complete lid systems for Li-Ion batteries. The systems have glass-to-aluminum sealed terminals for both prismatic and cylindrical-shape battery cells, as well as capacitors.
This brings added benefits:
- A simplified lid design
- High temperature resistance, ranging from –40°C to more than +125°C
- Electrolyte-resistant glass sealing prevents humidity infiltration into the cell housing
- Elimination of electrolyte leakage through the pin seals
- Improved battery safety because of gas-tight cell housing
Depending on cell design, the battery can maintain higher capacitance and longer shelf life, even in harsh environment conditions such as extreme heat and cold.
Complete battery lid systems
SCHOTT offers complete lid systems for Li-Ion batteries. The systems have glass-to-aluminum sealed terminals for both prismatic and cylindrical-shape battery cells, as well as capacitors.
This brings added benefits:
- Easy installation: The lid systems can be welded directly onto the cell case
- Easy integration into existing production processes through customized designs
- From prototype to mass production: SCHOTT is a reliable partner with full in-house development and production capabilities
Applications
With their high efficiency and storage capabilities, lithium-ion batteries are already widely used in consumer electronics. As product life cycles are very short (usually less than 3 years), simple pouch cells made from organic plastic are often considered sufficient. This material, however, ages naturally and loses hermeticity and security over time.
For applications requiring increased battery lifespan, such as e-mobility or wind and solar technology, materials with significantly enhanced durability are necessary. SCHOTT‘s lid systems for Li-Ion batteries satisfy these more demanding material requirements.
For applications requiring increased battery lifespan, such as e-mobility or wind and solar technology, materials with significantly enhanced durability are necessary. SCHOTT‘s lid systems for Li-Ion batteries satisfy these more demanding material requirements.
Technical Details
Technology
Since the 1930s, SCHOTT has been manufacturing hermetic housings using its Glass-to-Metal Sealing (GTMS) technology. This technology is proven for reliably sealing the battery covers of lithium thionyl chloride (Li-SOCl2) batteries.
Based on more than 20 years of sealing experience for primary batteries, innovative glass-to-aluminum sealing technology was specifically designed for long-lasting lithium-ion batteries and capacitors.
Sintered glass preforms are melted around the conductors to provide electrical insulation, enhance mechanical strength and center the conductors in the openings of the feedthroughs. The special glass is matched to the metal – in this case aluminum – with respect to its coefficient of thermal expansion, creating natural compression during cooling. In its application, the conductors remain firmly fixed by the solidified glass, even if mechanical pressure is applied or the temperature changes dramatically.
Quality
All our production facilities are ISO 9001 certified. For more information, please refer to our quality assurance processes.
