Ten-Nine Technologies moves its TENIX cathode additive to commercial-scale production in Oklahoma

EV Engineering News

Posted September 13, 2026 by Chris Ruoff & filed under Newswire, The Tech.

Ten-Nine Technologies is scaling up production of TENIX, a cathode additive designed to stop the chemical decomposition that saps a battery’s performance as it ages. The additive is blended into cathode material during manufacturing at 0.5–2% of the cathode’s weight.

That works out to roughly 0.5–2 kg for every 100 kg of cathode, about the amount of cathode in a typical EV battery pack. The additive drops into cathode production lines manufacturers already run, the company says, so adopting it requires no new equipment and no battery redesign.

In third-party testing, Ten-Nine reports, TENIX delivered over 75% more charge-discharge cycles, extending a typical EV battery’s life from a 150,000-mile warranty baseline to more than 265,000 miles. The cost per kilowatt-hour delivered over a battery’s lifetime falls by roughly 40% as a result, and 10% lower internal resistance means faster charging and less energy wasted as heat.

Ten-Nine describes manganese-rich cathodes as a cheaper and more abundant alternative to the cobalt- and nickel-heavy chemistries that dominate EV batteries, and sees the industry shifting toward them. Manganese is mined across Africa, South America and Southeast Asia.

Poor cycle life has held manganese-rich cathodes back, and Ten-Nine says that is the problem TENIX addresses, and that the shift could reshape the global cathode supply chain the way LFP did.

Ten-Nine rates its production capacity at 100 tons, enough to treat between 50,000 and 200,000 typical EV packs. The company is in evaluation trials with battery manufacturers that together represent more than half of the world’s battery production volume, according to the company, and is accepting orders for 2026-27 delivery from its Tulsa, Oklahoma facility.

“I’m a chemist so I wanted to fix that at the source rather than build a whole new battery to work around it. TENIX has a unique surface chemistry that disrupts that aging process, giving batteries more power and significantly longer life,” said Paige Johnson, Ten-Nine’s founder and CEO.

Source: Ten-Nine Technologies

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