As some of the worlds largest companies invest billions to advance battery technology, Dominic Spooner has been working at solving the next problem: the impact of unwieldy and environmentally unfriendly battery casings.
Spooner runs his lightweight battery casing technology firm Vaulta from a shared garage in Brisbanes north. Batteries will change our lives in ways that were maybe not even totally aware of, but we can create our own new group of problems if were not careful, he says.
From a workspace surrounded by packing boxes and other junk, like an old door, Spooner and his team have caught global attention.
This year Vaulta has signed agreements with aerospace and car battery companies, including one with Braille Battery an American manufacturer of ultra-lightweight batteries for Nascar, IndyCar and the Australian Supercars.
Last month the company received a $297,500 federal grant to commercialise its technology.
For those still sceptical about the extent and pace of global innovation being directed towards battery technology, the International Energy Agency says patents for energy storage inventions have grown four times faster than the rest of the technology sector, and are set to catalyse clean energy transitions around the world.
In 2020, Samsung spent US$710m (A$950m) on research and development of next-generation electric vehicle (EV) batteries. An Israeli firm has this year begun production of an EV battery that can charge in five minutes.
So how does a tiny garage-bound Brisbane startup find its place among global giants in the rush to innovate?
It seems like almost every other day there are tech advancements in the cells, cell types, cell shapes, cell geometry coming out of the US or Europe, Spooner says.
But the way theyre being packaged, the way theyre being housed, was just being overlooked.
Vaultas technology reduces the number of components used in battery cases. The casings reduce the battery size by about 18%. They also dont weld parts together, which means they can be taken apart and reused rather than dumped a start on preventing some of the 98% of disused batteries that goes into landfill.
Spooner says the lightbulb moment was a decision to work towards making a casing that could be disassembled.
At the end of that first life, can you replace cells? Can you change them over? Is any of that feasible? What we started realising was we were just scratching the surface.
Because were not welding the cells, when they come out of that casing they have the same properties as when they went in, and they are better set up for reuse scenarios.
[Battery innovation] is driven by performance further, longer, cheaper ... all the things that are going the help the take-up of batteries. But weve also got the time to do something right now, to do them in a smarter way. Its not just about recycling and reuse, but how can we get them into peoples hands.
In an electric car, the battery can weigh several hundred kilograms about a third of the cars total weight.
Audrey Quicke, a climate and energy researcher at the Australia Institute, says about a quarter of the cost of an electric vehicle comes from the battery under the hood.
Upfront cost is one of the biggest barriers to EV uptake in Australia, Quicke says. Although the fuelling and maintenance costs are cheap compared to petrol and diesel vehicles, its the upfront sticker price that stands out in the showroom. Any tech developments that bring down the price of batteries would likely help increase EV sales.
Quicke says a 2018 Senate inquiry recommended a comprehensive EV manufacturing roadmap, which would also cover battery and component manufacturing, but that many of the recommendations remain unrealised.
EVs and batteries are not a high priority in the governments technology roadmap, and theres no federal electric vehicle strategy to speak of, she says.
Thank you for your feedback.
But the writing is on the wall. It is the state governments and tech entrepreneurs that are driving the EV, charging and battery innovation in Australia. Imagine what could be achieved with a nationally consistent supportive EV policy environment to provide direction for this transition.
Spooner says the company doesnt intend to produce battery casings at a commercial scale. Rather the aim is to license the technology and to work with manufacturers in Australia and overseas. But he says the ability to reduce the weight of batteries could unlock a second tranche of innovation.
Flying cars, for instance, no longer sound like a film fantasy and could be on the market within a decade.
It could really open the door here or overseas for vehicle makers and for [vehicles] that dont exist yet, Spooner says.
Locally theres not a huge EV industry in Australia, but thats not to say there wont be. Theres advanced aerospace ... manned and unmanned. Stationary storage is here to stay as well.
Percentage gains in those sorts of fields are really exciting to be a part of for a car to be delivered as concept, then to be reined in and delivered to the mass consumer.
The boundaries for new technology to enter the market would be less.
But batteries also have a big role to play right now. In a lot of ways its a mature technology in its early stages of rollout.
At the outset of the pandemic as Spooner began to work on the battery casing technology, he spotted a neighbour, an engineer, working in the garage of a nearby home.
Vaulta sublet the space soon after and has no immediate plans to leave. For one thing, its too convenient right around the corner from Spooners home, which allows plenty of time to spend with his young daughter.
When we talk about the garage, its actually an upgrade from where we were, Spooner says.
We were working from home. We basically worked through emails, phone calls, text messages.
Through Covid weve managed to find a way to do business with Canada, parts of the US. You just kind of adjust and I actually quite like it. You cant beat the commute and were pretty comfortable there, to be honest.
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