The simple design and complete airtightness contribute to reducing battery costs and improving long-term reliability.
Shot has developed GTAS(R) (Glass and Aluminum Sealing) using a new glass and process that can hermetically seal high thermal expansion rate Al (aluminum). Conventional hermetic terminals were limited to materials such as Fe, SUS, FeNi, and KV due to the constraints of the thermal expansion rate of glass. Current lithium batteries are not completely hermetic due to sealing with resins and other materials, leading to issues such as electrolyte drying and moisture intrusion from the outside, which affect capacity reduction and long-term reliability. By using GTAS(R), customers can achieve complete hermetic sealing. Additionally, the reduction in the number of components in lithium batteries due to a simple design contributes to cost reduction for customers' batteries.
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**Features** By using Shot's glass and aluminum sealing technology, the following becomes possible: • Cost reduction through a simple lid design and high airtightness, which reduces the number of parts for customers • High heat resistance exceeding -40°C to +125°C • Prevention of moisture ingress into the cell through glass sealing resistant to electrolyte • Prevention of electrolyte leakage from the electrode sealing area • Improved battery safety through airtight housing • Maintenance of higher capacity and improved product lifespan of the battery according to cell design **Technology** Since the 1930s, Shot has been manufacturing airtight housings using glass and metal sealing (GTMS) technology. This technology has proven effective in battery covers for lithium thionyl chloride (Li-SOCl2) batteries and automotive sensor components. Based on over 20 years of experience in primary battery sealing, this innovative glass and aluminum sealing technology has been developed for lithium-ion batteries and capacitors that require long life. *For more details, please refer to the PDF document or feel free to contact us.*
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Lithium-ion battery
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Shot is an international technology group leading in the fields of specialty glass and glass-ceramics. With over 140 years of outstanding research and development, as well as a wealth of materials and expertise, we provide a wide range of high-quality products and intelligent solutions that contribute to our customers' success. Shot brings innovation to many industries, including home appliances, pharmaceuticals, electronics, optics, automotive, and aerospace. Shot aims to play a significant role in the lives of everyone. The core company of the group, Shot AG, is a wholly-owned subsidiary of the Carl Zeiss Foundation. Shot Japan Co., Ltd. was established in 1966 as the first sales subsidiary of the Shot Group in Asia. In February 2018, we integrated the Tokyo Sales Department, which sells optical glass, crystallized glass, thin glass, heat-resistant glass, glass tubes, optical fibers, and primary containers for pharmaceuticals, with the Mizuguchi plant, which develops and sells electronic packaging, to provide Shot's technology and products under a new structure.
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