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Cathode reaction of aluminum air battery7/28/2023 ![]() Garnering support Jackson alleges that vested interests in the Li-ion battery industry are undermining his product. “You only pay for the miles you drive and you only pay seven pence per mile,” he states. While rechargeable Li-ion batteries can cost tens of thousands of pounds to replace, Jackson says that ‘refuelling’ by swapping a drained Al-air battery for a recycled one at the end of its 1,500 mile range is infinitely cheaper. A discharged Al-air battery is simply replaced with a recycled one which could be sold at supermarkets and convenience stores swapping an empty battery for a new, fully charged one would take about 90 seconds, he claims. Jackson has got Al-air battery depletion covered, too. They also cannot be short-circuited as there is no stored charge they are a power source rather than an energy storage device, with the energy being derived from a chemical reaction from stable aluminium. They can be air-freighted wet or dry and are not flammable – in stark contrast with Li-ion batteries, which are vulnerable to thermal runaway. The batteries are constructed from plastic, aluminium and a non-toxic, safe electrolyte. Looking at the financial aspect, it works out at 1/7 th the cost per kilowatt hour of a Li-ion battery. Furthermore, the battery is claimed to be recyclable, replaceable, environmentally friendly and ethically sourced. It is also much smaller and so takes up less space in the chassis. Jackson’s invention, he claims, boasts nine times the energy density of a Li-ion battery of comparable weight, or four times its energy density in equivalent volume. According to Jackson, swapping a standard Tesla Li-ion battery with an Al-air device of the same weight would produce a range of 2,700 miles. To put that in context, a Tesla Model S has an estimated range, from a single charge, of 370 miles. He claims the battery can give an EV a 1,500-mile (2,400-kilometre) range. Jackson’s experiments led to the development of a new, safe electrolyte which he has even tasted in front of startled industry observers in order to prove its benign properties. Although the Al-air battery was invented back in the 1960s, it was deemed unfit for commercial deployment due to its electrolyte being dangerously caustic and poisonous. Trevor Jackson, an engineer and former officer in the UK’s Royal Navy, began experimenting with Al-air batteries in 2001 at his modest workshop in Callington, Cornwall. One of them is the aluminium-air (Al-air) battery. Lithium-ion (Li-ion) batteries are currently the main focus of multibillion-dollar investments by OEMs and tier suppliers, but there are other contenders that could offer a breakthrough with alternative technology. Richard Brown investigatesĪ long-range, lightweight, cost-efficient, recyclable and ethically sourced battery is, arguably, the Holy Grail of the EV market. The deficiencies of Li-ion batteries contribute to consumer doubts about EVs, but switching to a different type of technology could solve crucial problems.
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