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Prismatic Battery Cell Envelopes
Battery Cell Envelopes
In prismatic battery cells, the envelope directly influences cell performance. Freudenberg Sealing Technologies’ nonwoven Battery Cell Envelopes protect and electrically insulate the cell stack while supporting stable wetting, efficient heat dissipation, and consistent cell manufacturing compared to standard PP or PET solutions.
Battery Cell Envelopes Advantages (BCE)
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Material Integrity and Compatibility:
All materials in contact with the electrolyte are battery-proven and comply with strict cleanliness requirements, preventing contamination from compromising battery chemistry and functionality. -
Improves Thermal Management Capabilities:
Porous, nonwoven materials facilitate electrolyte flow and improve thermal transfer rates, which helps to keep cells within optimal temperature ranges even during demanding usage scenarios. -
Material Performance:
Nonwoven material is robust and tear-resistant, keeping the cell stack safe during installation. The material’s porous, capillary nature helps to keep the cell stack wetted during the life of the cell with electrolyte. -
More Consistent Cell Manufacturing:
Wettable nonwoven materials do not trap gas bubbles during the filling and formation process which can help to speed up filling times. -
Increased Energy Density:
Free electrolyte flow allows the elimination of certain components, such as shims, streamlining the cell design and production processes making more room for active electrode material. -
Electrolyte Reservoir:
Porous nonwovens can release additional electrolyte when compressed. -
In-Cell Swelling Compensation:
Thick layers of nonwovens enable cell manufacturers to compensate the cell stack growth within the battery cell, eliminating or reducing the need for compensation measures between the cells.
Commitment to Innovation and Quality in Battery Technology
Incorporating these details, FST’s cell products not only advances battery cell manufacturing but also ensures that every aspect, from safety to sustainability, is addressed, reinforcing FST’s commitment to innovation and quality in battery technology.
Download our Solutions Sheet to learn more about each of their unique characteristics and the benefits they provide.
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