Engineering LG Chem Develops 4th Carbon Nanotube Unit at Daesan Complex

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With an aim to expand in the global carbon nanotube market, LG Chem is currently constructing its fourth carbon nanotube unit at the Daesan complex near Seoul in South Korea. The new plant is expected to double the company’s annual carbon nanotube production capability.

Seoul/South Korea – LG Chem recently announced that it has started construction of its fourth carbon nanotube (CNT) plant at its Daesan Complex, 80 kilometers southwest of Seoul. LG Chem’s CNT 4 Plant is slated for operation in 2025 and will contribute to doubling LG Chem’s annual CNT production capability to 6,100 tons. Prior to this, LG Chem’s 1,200-tons CNT 3 Plant in Yeosu was also recently put into full operation, enabling LG Chem to secure a total production of 2,900 tons/year, adding on to the existing 1,700 tons.

LG Chem continuously expanding its CNT production capacity to gain a strong competitive advantage in the global CNT market which is rapidly evolving around electric vehicle (EV) battery materials. LG Chem has been operating CNT plants since 2017, starting from 500-ton productions at its CNT Plant 1, and is building new plants every year since 2020 to meet growing demands.

Thanks to the company’s fluidized bed reactor technology, production lines at all four LG Chem’s CNT plants can produce up to 600 tons on a yearly basis, demonstrating the highest single-line capacity in the world.

“With the nation’s largest CNT production capacity, we will continue building a strong competitive advantage in the battery materials sector and actively explore new business opportunities by moving faster than our competitors,” said Noh Kug-lae, President of LG Chem’s Petrochemical Business.

CNT materials produced by LG Chem will be supplied as conductive additives to battery makers including the current global EV battery market leader LG Energy Solution, with plans for usage to be expanded to a broader range of industries. When used as conductive additives for cathodes, CNT can reduce the volume of conductive additives in batteries by nearly 30 percent while achieving 10 percent more conductivity than carbon black. CNT-based batteries can deliver higher capacity and longer lifespan as more power-generating cathode materials can be used in place of the conductive additives. Thus, besides conductive additives for cathodes, CNT is also an attractive conductive additive of next-generation anode, lithium-sulfur and solid-state batteries.

That said, LG Chem is actively stretching out its CNT sales to various sectors besides EV batteries. LG Chem has recently started supplying CNT-added, metal-replacing electrostatic coating plastics to Japanese automaker Mitsubishi Motors, which is now applying the material to the front fenders of its three vehicle models. Furthermore, this plastic can be varied and customized to make other types of automotive parts such as bumper panels, hoods, tailgates, fuel doors, and side mirrors.

LG Chem is also supplying CNT to a Korean automotive maker, allowing the company to apply the material to its radar-absorbing system for electro-magnetic interference (EMI) purposes.

CNT is a next-generation material offering the equivalent level of electricity and thermal conductivity as copper and diamond and 100 times the strength of steel. Due to its excellent properties that surpass existing materials, CNT has an infinite range of applications in batteries, semiconductors, automotive components, and surface heating elements. The global CNT conductive additive market is expected to grow to 2.3 billion dollars contributing to the total demand of CNT increasing from 14,000 tons in 2022 to 95,000 tons by 2030.

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