Technological developments for future EV charge points

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As recently as 5 to 10 years ago, electric vehicles were seen as a quaint idea promoted by environmental lobbyists. While people seemed to accept that EVs may one day become mainstream, few predicted a rapid rise.

In 2010, around 100 EVs only were sold in the USA, yet by 2017 more than 200,000 were sold. In total, there are estimated to be over a million EVs currently on the road in the USA alone. Research suggests that by 2030 there will by 500 million EVs worldwide and that, given the exponential growth rate so far, even that figure may be too low.

In fairness to the naysayers, there are some underlying issues surrounding the infrastructure that are slowing down the widespread adoption of EVs, the biggest issue being charge points.

Given the speed at which the EV market is evolving and the issues still facing mass-adoption, how will charge points meet demand?

Rapid increase in charge points

EVs are still rather limited in terms of range, maxing out at around 240 miles on a single charge – enough to drive from the London to Lincoln and back, but not enough for a family holiday to France. As such, we need to see an increase in commercial charge points for those driving long distances.

Fortunately, governments and private businesses are on the case. The European Union is pushing for charge point facilities to be available in new residential and commercial buildings and governments, such as the UK, are providing consumer subsidies for charge points. In fact, the UK government recently unveiled plans to become a world-leader in low-emission tech at the world’s first Zero Emission Vehicle Summit, which was held in the UK last month.

Technological developments for future EV charge pointsAll this focus is helping. Nissan estimates that the number of charge points will overtake petrol stations by August 2020, owing to both the decline in petrol stations and the increase in charging points. And, over the next two years, you’d be hard-pushed to find any car manufacturer that isn’t unveiling their hybrid or electric vehicles.

The variety of charge points is also increasing. EV customers and businesses now have a choice, albeit limited, between a range of functional, utilitarian charge points and more aesthetically-pleasing options.

For example, Andersen EV’s charge point was nominated for a Design Week Award, demonstrating the mainstream attention charge points are receiving. For luxury hotels, golf clubs and other venues, aesthetics are important, so the availability of design-led charge points should help to increase adoption.

Speedier charging and improved batteries

Huge leaps and bounds have already been made in terms of the speed of charging. A few years ago, it would take several hours to fully charge an EV. That’s clearly far too long for drivers to spend in a service station.

Now, with three-phase chargers, most modern EVs can charge to 80% in just 30 minutes. While this is a significant improvement, it doesn’t compare to the five minutes it takes to fill a tank of petrol.

Technological developments for future EV charge pointsYet, with improvements to both battery and charge point design, this will drop rapidly over the coming years to be on a par with petrol cars. Manufacturers are looking at solid-state batteries which use graphene as a potential solution and, in the meantime, we expect a graphene/lithium-ion hybrid to increase the range and charging speed of EV batteries.

Efficiency in battery design will be matched by improvements to charging points, enabling far more voltage to be run from the charge point. This is likely to double every few years, leading to rapid charging of much higher capacity batteries, which in turn will minimize range anxiety.

Diversification of power sources

Along with improvements in battery and charge point design, there will be a significant shift toward diversifying the sources of power for EVs. I don’t expect any of these alternatives to provide all of the power needed to charge an EV, but if each one contributes a little to the charge of the vehicle, it will keep them going longer between stops at charge points.

Solar panels, otherwise known as photovoltaics (PV), have already become much more efficient at capturing the sun’s energy. They can already be seen on commercial and residential buildings, but increasingly they will be seen on the roofs of EVs, helping boost the car’s energy as you drive.

Technological developments for future EV charge pointsAnother source of energy will likely lie under our roads, charging EVs as we drive. As early as 2015, the UK government was testing charge-and-drive solutions for buses, providing a small amount of charge at each stop to keep EV buses operating their entire route without having to plug in. The same approach could be installed at traffic lights or even along stretches of highway to give EVs a welcome energy boost.

Contactless charging

Some suggest that the rise of autonomous vehicles will signal the end of car ownership. Instead, they suggest that cars will be booked and drive passengers autonomously to the destination.

While this seems inevitable with the amount of money Uber and Google are ploughing into the technology, I still think there will be a place for personal vehicles and family cars. Longer trips, for example, will require the vehicle for long periods and anyone who’s tried to organize their kids for a holiday will know how long it takes to pack the car!

I think personal autonomous vehicles will make use of wireless charge points, which will become the new standard for EV charging. Wireless charge points use induction to charge the vehicle from underneath, eliminating the need for a human operator to plug them in. 

The future of the EV charge point market is very exciting. Technology is moving at such a rapid pace that these future predictions may arrive much earlier than anticipated, contributing to a greener and healthier world.

Technological developments for future EV charge pointsAbout the Author
Jérôme Faissat is co-founder of Andersen, manufacturers of premium electric vehicle charging points

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