# SK On Cuts LFP Cathode Costs With Carbon Nanotube Powder

*The South Korean battery maker developed a dry powder dispersion process to replace expensive paste in lithium iron phosphate cells, targeting commercial factory lines.*

**Published:** October 18, 2026  
**By:** Seung-min Park  
**Section:** Batteries & Electric Vehicles — South Korea  
**Format:** Breaking  
**Confidence:** medium  
**Source:** https://eastasiabrief.com/batteries-ev/sk-cuts-lfp-cathode-costs-carbon-nanotube-powder-787  
**Publisher:** East Asia Brief (https://eastasiabrief.com/)

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## What to know

- SK On replaces liquid CNT paste with dry powder to reduce LFP cathode processing costs
- Battery maker locked in 1.26 trillion won of domestic LFP cathode supply with POSCO Future M and L&F
- Converted 3 GWh Seosan lines begin commercial LFP cell deliveries in the first half of 2027

![Researchers in lab coats work behind a glass partition near specialized processing equipment at an SK On battery research institute. (AI-generated image)](https://eastasiabrief.com/media/2026-10-18-78197586b86f.webp)
*Researchers in lab coats work behind a glass partition near specialized processing equipment at an SK On battery research institute. (AI-generated image)*

SK On said Oct. 18 it developed a carbon nanotube powder dispersion process that replaces costly liquid paste in lithium iron phosphate battery cathode manufacturing, reducing cell production overhead.

The innovation secured the top award at the company's internal research conference held at its Daejeon research institute. The gathering reviewed 300 technical projects across six battery engineering divisions, up 15% from last year.

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Cite as: East Asia Brief, "SK On Cuts LFP Cathode Costs With Carbon Nanotube Powder," October 18, 2026. https://eastasiabrief.com/batteries-ev/sk-cuts-lfp-cathode-costs-carbon-nanotube-powder-787