From the abstract: A lithium-air battery based on lithium oxide (Li2O) formation can theoretically deliver an energy density that is comparable to that of gasoline.
If it can be made small enough for use in mobile devices, I wonder whether the need for air/oxygen might require compromising on water-tightness. Would an oxygen permeable waterproof membrane allow enough through for operation? It would be interesting if instead of just for cooling, future high powered devices might also need a fan to feed the battery!
I thought the problem with all of these metal air batteries is the sluggish oxygen reduction reaction at the air cathode. It just seems too slow for a high power density - need high surface area. The air cathode in this experiment is a gas diffusion layer embedded with trimolybdenum phosphide nanoparticle (seems common with these, others use platinum and iridium), with a current density of 0.1 mA/cm2. Need 1m2 of air cathode for 10 amps. I wonder how that ORR can be sped up or use smaller surface area. Could some kind of forced induction supercharger type thing work for these? I'm not a chemist.
Is there a way to determine how miles per kWh would change with different batteries in currently sold EVs? Would it be fair to say like half the weight but same energy content means double the distance per kWh
If you are interested in alternative lithium chemistries, Ouros is developing and commercializing one:<p><a href="https://ouros.energy/" rel="nofollow">https://ouros.energy/</a>
I'm a bit excited but also a bit tired of hearing about all these batteries. I just want someone to wake me up when we have a commercially available 1kwh+/kg with decent durability, decent price, and good safety.<p>Maybe this is a good idea for an ammoseek website but for batteries that can send alerts. I'm honestly surprised a quick search didn't turn one up.
/Up to 1000 charge cycles/ is a big damper on the excitement, for me. Does anyone know if a limitation like that is inherent to the chemistry here or is this something that they could potentially (hopefully, vastly) surpass?