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January 24, 2022

PPG teams with Cellforce for battery solutions

PPG will supply cathode binder systems, which are free of NMP solvent, to the Cellforce Group.

PPG has partnered with Cellforce Group, a joint venture between Porsche and Customcells, to develop sustainable battery cell solutions.

PPG will supply cathode binder systems, which are free of N-Methylpyrrolidone (NMP) solvent, to the Cellforce Group.

The supplier says the collaboration would eliminate the use of NMP in producing the conductive-carbon slurry that forms cathodes for Li-ion batteries. NMP, which is widely used in electrode manufacturing, has been identified as a reproductive hazard by several global regulatory agencies and was recently identified by the US Environmental Protection Agency (EPA), notes PPG, as an “unreasonable risk” to workers in certain conditions.

“PPG is eager to partner with the Cellforce Group to build the next generation of battery cell technology that will define a new level of sustainability for the electro-mobility segment,” said PPG general manager of mobility, Markus Vogt.

“Additionally, the partnership enables collaboration to provide critical technology development to increase cell performance and safety.”

PPG adds it is “helping vehicle, battery and component manufacturers accelerate the development of tomorrow’s automotive energy storage solutions.” The company’s materials experience covers virtually every area of Li-ion battery design and construction, aiding energy density, service life, safety, manufacturing throughput and reduced cost per kilowatt hour.

PPG provides differentiated solutions for automotive electromobility, such as sustainable binder solutions for the battery cell and coating solutions for the battery pack, which include battery fire protection, anti-corrosion coatings for battery packs/trays, dielectric shielding and thermally conductive materials.

The Cellforce Group initially develops and produces lithium-ion pouch cells for automotive applications.

Porsche holds a 72.7% stake in the company, with Customcells holding the remaining shares.

By 2025, the workforce is expected to grow from 23 employees at present, to around 100 staff.

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