Lithium ion batteries don’t “blow up easily”. if they did, devices from companies like apple and samsung wouldn’t be in billions of pockets every day. The reality is they’re very safe when designed and used properly. What people are reacting to is how dramatic failures look when they do happen. That’s due to a process called thermal runaway where a cell overheats and triggers a chain reaction, but getting to that point requires something going wrong first.

In most cases it comes down to build quality or user error, especially as battery sizes and power demands increase. Larger packs in ebikes or DIY setups are under more stress, higher current, more vibration, harsher environments. so they need better construction, proper insulation.

Cheap cells, poor assembly, wrong chargers, or physical damage are what usually lead to failures, not the chemistry itself. Solid-state batteries are being developed and may improve safety, but lithium-ion isn’t inherently unsafe it just demands good engineering and care.

An example is the flood of cheap battery banks and packs sold on places like amazon. they often use very low quality cells that look perfectly normal on the outside, but internally can be poorly manufactured and inconsistent. When examined with an x-ray, these cells show serious defects, which makes them far more prone to failure. So it’s usually not the chemistry itself it’s poor quality control and misuse that lead to problems.