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Tuesday, 15 October 2024

EV industry doomed without new battery technology

The EV dream is foundering. Almost daily, we hear of some sort of EV fire caused by unstable, fire-, and explosion-prone lithium-ion batteries. Add to this the lived experience of EV owners with long queues at chargers, even if available, and diminishing resale values. And worst of all for the car manufacturers, the buyers are leaving the field, and as a consequence, so are many manufacturers. 
So, the dream that most of the world would transition over the next decade to a majority of electric vehicles is becoming a pipe dream. Many of the claims were "heroic" and never achievable. Yet some governments were so convinced that they forecast bans on fossil fuel-based vehicles at future dates even within 10 years. Much of this rhetoric is being walked back, and it takes the most self-deluding politician to make such claims today. So, is the EV destined for the dustbin of history? Far from it!

While the relatively new EV technology is feeling pressure on many fronts:
  • Long battery charge times
  • Limited range
  • Limited battery lifetime
  • Unstable fire/explosion-prone battery technology
  • Lithium is a difficult raw material requiring extensive mining and difficult extraction
Looking at this list, the weakest link in the EV dream is the battery technology. New battery technology can totally overturn the current decline.

So, now that I have set the scene, several new battery technologies seem to be on the horizon. One such technology is the Graphene-Aluminium-Ion (Gr-Al-Ion) battery. It does not use lithium, the source of many of the problems with the Li-Ion battery. It uses aluminium, which is abundant, light, easy to handle, and relatively easy to mine. It also uses graphene, a form of carbon that is manufactured from abundant, low-cost carbon. However, the manufacture of graphene is currently a difficult and expensive process and would have to be improved to make this technology viable at scale. The resulting battery, however, beats the Li-Ion hands down.

The Gr-Al-Ion battery:
  • Charges 70x faster, meaning your laptop can be charged in minutes, not hours, and your EV can have a meaningful charge in the same time it would take with a petrol engine
  • Has a longer lifetime – 3x as long as Li-Ion, implying a life of 30 years for an EV as opposed to the 10 years of a Li-Ion
  • Is greener – eliminating the need for lithium and rare earths with complex supply chains
  • Is safer – the Gr-Al-Ion battery operates at lower temperatures and does not cause fires or explosions
But this is just a summary. If you need more detail, here are a couple of videos that provide more information.

So the EV dream may yet be realised, but not quite there yet.




and another.



The leading company in the development of the Gr-Al-Ion battery is an Australian company, GMG (Graphene Manufacturing Group), established by and working in collaboration with the University of Queensland and Rio Tinto.

So the EV dream may yet be realised, but not quite there yet.

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