HF-Absorbent Glass Powder for Li-Ion Battery Longevity

Product Description

SCHOTT Electronic Packaging has developed a special glass powder to absorb hydrofluoric acid. Due to its special composition, the inorganic glass powder particles can scavenge fluorine ions and chemically bind them to the glass particle structure.

This binding is irreversible as the fluorine ions are permanently inactivated which prevents the formation of hydrofluoric acid in systems with fluid or liquid electrolytes such as li-ion battery systems or capacitors.

Advantages

Compared to standard separator coating materials, SCHOTT hydrofluoric acid absorbent glass powder provides several key benefits:
  • Significant increase in longevity and safety of lithium-ion batteries, EDLCs, and Supercapacitors (dependent on materials/chemicals used)
  • In case of thermal runaway, the hydrofluoric acid scavenging glass powder particles remain in place and protect the electrodes from contacting each other, preventing a short circuit reaction
  • The world's first inorganic filler with hydrofluoric acid gettering function:
    • Chemically resistant to electrolytes
    • Electrochemically resistant even in high-voltage applications
    • Temperature resistant up to several hundred degrees Celsius
    • Reduced abrasion in coating process due to lower hardness in comparison to ceramic materials

Applications

SCHOTT’s hydrofluoric acid absorbent glass powder is suitable as an additive for the separator, the electrode materials or as a coating on electrode materials in:
  • Lithium-ion batteries
  • Electric double-layer capacitors (EDLC) or Supercapacitors
  • May also provide benefits for other applications in which  hydrofluoric acid must be chemically bound

Technical Details

Technology

Glass powders are manufactured in two steps:

  • The raw glass is first melted in specially designed aggregates.
  • The glass is then ground into fine powders of different grain sizes.

HF-Scavenging Glass Powder:


Li-Ion Electrolyte HF-Scavenging Glass
HF-Scavenging Glass Material Data

Quality

For more information on the different quality assurance programs, please refer to our quality assurance processes.
Trade Fairs & Events
29.
January
Trade fair LED Japan, Tokyo, Japan, 29.01 - 31.01.2020
04.
February
Trade fair SPIE PhotonicsWest, San Francisco, USA, 04.02 - 06.02.2020
11.
February
Trade fair Medical Design & Manufacturing (MD&M) West, Anaheim, CA, USA, 11.02 - 13.02.2020
10.
March
Trade fair OFC-Optical Networking and Communication Conference & Exhibition, San Diego, USA, 10.03 - 12.03.2020
Contact
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SCHOTT AG
Christoph-Dorner-Strasse 29
84028 Landshut
Germany
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E-Mail to SCHOTT+49 (0)871/826-0
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