I think it is worth building a fire resistant battery box out of cement board. Custom made so it fits your space. I built a small cabinet out of plywood and lined it with concrete board. My cells LiPo4 cells, so it’s not really needed but it made me feel better.
For example, a battery case made from CFRP can save up to 40 percent weight compared to aluminum or steel. In addition, our composite components ensure improved fire protection, underbody protection and optimum temperature conditions within the battery. Outstanding safety for electric vehicles that can save lives.
As the pace of EV adoption and innovation accelerates, OEMs and EV battery manufacturers are striving to develop more efficient ways to build batteries at scale. At the same time, fire protection remains critical to ensure vehicle batteries provide the best possible safety in the case of accidents and fires.
At the same time, fire protection remains critical to ensure vehicle batteries provide the best possible safety in the case of accidents and fires. This is especially important as regulatory demands become more rigorous. Hence, EV battery safety technologies that delay the spread of fire have never been more vital.
Abstract: The box structure of the power battery pack is an important issue to ensure the safe driving of new energy vehicles, which required relatively better vibration resistance, shock resistance, and durability.
If they are regular Lithium Ion cells, especially ones from an old EV or 18650 batteries I would most certainly put them in something fireproof and also not in my house. Wondering the same myself. I was leaning towards something like this. It could serve as security, an easily air conditioned space, and fire protection.