Hyundai and Kia Patent Grid-Based Cooling Case to Curb EV Battery Fire Risk

Hyundai and Kia have filed a patent for a battery case that uses a grid-like internal structure to improve cooling and reduce the chance of fire in electric vehicle battery packs. The design divides the pack into small, separated compartments, so that if one cell overheats or fails, the problem is contained instead of spreading to neighbouring cells. The grid also creates more paths for coolant to flow, helping to pull heat away from the cells more evenly. By combining physical separation with better thermal management, the patent aims to address one of the most closely watched safety issues in EVs: battery fires that can start from a single faulty cell and quickly grow. The patent focuses on the structure of the battery case itself, rather than on new cell chemistry or software. Hyundai and Kia have not issued a public statement or quote about the patent in the source material, so the filing stands as a technical disclosure of their proposed approach.