LG Chem said on Wednesday that it was developing a thermal adhesive for cell to pack batteries.
Subsidiary LG Energy Solution recently unveiled its cell to pack pouch batteries that come in high-nickel and mid-nickel variations.
LG Chem is likely preparing to adhesive to supply them to its battery-making subsidiary.
Jiyoung Hwang, a researcher at LG Chem’s Information and Electronics Materials Division, who confirmed that the company was developing the adhesive during a trade show at Ilsan, South Korea, also added that thermal adhesives made with urethane rather than silicon were being preferred not just in pouch batteries but also prismatic and cylindrical batteries.
Thermal adhesives send the heat from the battery cells to the cooling pad, usually made with silicon or urethane.
For cell to pack batteries, as they have no modules, adhesives play a more crucial role than conventional batteries. Adhesives must hold the cells in place to protect them more external shock while removing heat.
Meanwhile, LG Chem said is planning to use bio-materials instead of petrochemicals for its urethane thermal adhesive to make them more environmentally friendly.
Hwang said LG Chem is aiming to start mass production of the adhesives in 2028.
The South Korean chemical giant started its adhesive business by acquiring US firm Uniseal in 2018. It has factories in Poland and the US and has been supplying them to LG Energy Solution since 2017.
