<li><b>Metal hydrides:</b> These materials can absorb and release hydrogen, offering a safer and more compact storage solution, but they can be heavy and expensive.</li>
<p>Ensure that the cleaner is safe for use in your car and won't damage any interior components. Look for non-toxic and environmentally friendly options.</p>
<li><b>Proton exchange membrane fuel cells (PEMFCs):</b> These are the most common type of fuel cell used in automotive applications. They operate at relatively low temperatures (around 80В°C) and have high power density.</li>