LG Energy Solution is accelerating the commercialization of solid-state batteries, aiming to achieve cost and process innovation by emphasizing its dry electrode technology as a core competitive advantage along with a differentiated technology strategy for various applications.
During the InterBattery 2026 event held at COEX in Seoul for three days starting from the 11th of this month, LG Energy Solution showcased physical cells and mock-up modules of sulfide-based solid-state batteries for the first time, with a message of "exceeding the limits of lithium-ion batteries with high energy density and fast charging."
The company also unveiled a strategy to actively apply solid-state batteries to industries with limitless growth potential such as premium electric vehicles, humanoid robots, and the urban air mobility (UAM) market.
LG Energy Solution plans to commercialize the "graphite-based solid-state battery" for electric vehicles by 2029 and the "cathode-free solid-state battery" for next-generation applications like humanoid robots by 2030.
In line with the demands of various application fields, the company will implement a "differentiated strategy" by adapting its technology approach accordingly. For the electric vehicle market where mass production and stability are crucial, LG will focus on developing the graphite-based solid-state battery with high material and process compatibility with existing lithium-ion batteries. For applications like humanoid robots and UAM for which strict space constraints and high energy density per volume are required, LG will prioritize the cathode-free solid-state battery using only solid-state electrolytes.
The biggest obstacle to the commercialization of solid-state batteries lies in high manufacturing costs and process complexity. LG Energy Solution is highlighting its "dry electrode" technology as a solution. The dry method, which skips the organic solvent drying process, is considered a next-generation method that can significantly reduce equipment investment and process costs, leading to innovation in battery production efficiency and space.
LG Energy Solution has filed over 450 patents related to dry electrodes worldwide. The company holds key patents in dry electrode fiberization and tensile strength improvement, essential for mass production of dry electrodes, as well as technology that can be applied to both cathodes and anodes regardless of material particle size.
Having established a solid-state battery pilot line at the Ochang Energy Plant at the end of last year, LG Energy Solution plans to focus on securing mass production centered on LFP products this year. The company is currently dedicated to developing high-density implementation processes and accelerating technological advancement.
An LG Energy Solution official stated, "Recently, there has been increasing interest in solid-state batteries due to the attention received by new industries such as robots and UAM," adding, "We will continue to focus on technology development to showcase high-quality technology during the commercialization phase."