PR91032

HOUSTON, Aug. 5, 2021 /PRNewswire=KYODO JBN/ --

Ascend Performance Materials has successfully challenged a lithium-ion battery

technology patent held by Samsung SDI. In a final written decision, the U.S.

Patent Trial and Appeal Board held that all of the challenged claims were

invalid for multiple reasons.

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The board's decision broadly enables manufacturers to use Trinohex Ultra(TM) in

the United States for their lithium-ion battery electrolyte formulations.

To date, Ascend's global efforts to invalidate Samsung SDI's patent family have

been successful, with favorable decisions in China and the U.S., with actions

pending in other jurisdictions.

"We are pleased that the board saw the merits of our case against an overly

broad and restrictive patent," said Dan Burke, Ascend's intellectual property

attorney. "The board agreed that the scope of the existing patent was too broad

and that its claims were invalid in view of earlier well-known additives."

Ascend's Trinohex Ultra is a globally available, non-hazardous electrolyte

additive that improves battery life and overall performance, especially in

extreme conditions. Independent testing has shown Trinohex Ultra to be

effective in reducing harmful gas generation by over 25% and protecting both

current and next-generation lithium-ion battery cathodes from degradation.

"We have tested batteries containing Trinohex Ultra across different cathodes,

voltages and electrolyte chemistries," said David McNeece, Ascend's business

manager for battery chemistry. "Across the board, Trinohex Ultra outperforms

competing additives – displaying superior performance in gas generation and

capacity retention, which leads to longer-lasting and higher performing

batteries in all conditions."  

Ascend is a fully integrated producer of high-performance polymers, fibers and

specialty chemicals used in automotive, electrical and electronic, consumer and

industrial products globally.

About Ascend Performance Materials

Ascend Performance Materials makes high-performance materials for everyday

essentials and new technologies. Our focus is on improving quality of life and

inspiring a better tomorrow through innovation. Based in Houston, Texas, and

with regional offices in Shanghai, Brussels and Detroit, we are a fully

integrated material solutions provider with nine global manufacturing

facilities in the United States, Europe and China. Our 2,600-person global

workforce makes the plastics, fabrics, fibers and chemicals used to make safer

vehicles, cleaner energy, better medical devices, smarter appliances and

longer-lasting apparel and consumer goods. We are committed to safety,

sustainability and the success of our customers and our communities.

Learn more about Ascend at www.ascendmaterials.com.

Contact: Ally Jahn, +1 713-210-9809, ajahn@ascendmaterials.com

SOURCE Ascend Performance Materials