Interchangeable EV battery innovation

Better Place’s innovative battery switch model enables its customers to drive affordable electric cars with the convenience of gas-powered cars

Energy innovation in action: Better Place’s battery switch model enables its customers to drive affordable electric cars with the convenience of gas-powered cars

When it comes to refueling gas-powered cars, drivers around the world have about 100 years of practice: when you run low on fuel, you look for a gas station. With electric vehicles (EVs) beginning to enter the market, auto manufacturers, grid operators and customers are searching for ways to ease the transition from gas to electricity.

Better Place, a venture-backed company founded in Silicon Valley, is building charging stations in several countries to serve EV customers, and has designed an innovative approach that may well become the “gas station” of the future. Rather than refill your battery, Better Place’s automated service stations swap it out.

Better Place’s battery switch stations – which could be described as a mixture of a drive-through car wash and a Jiffy Lube service station – can extract and replace an electric car’s battery in a matter of minutes, without requiring the driver to get out of the car. To complement the switch stations, Better Place also builds a network of standard charging stations to regularly “top off” the battery when the car is parked.

A car leaving a Better Place battery switch station

Credit: Better Place

“The switching concept makes sense for several reasons,” said John Proctor, Director of Global communications at Better Place. “Battery switch enables us to address the relatively high cost and limited driving range of EVs.  Better Place buys the battery, removing that burden and worry for drivers, and enables them to quickly switch a battery for a fully charged one to overcome concerns about EVs having enough charge for longer trips.”

Some plug-in models, like the Chevy Volt, have gas powered range extenders that give the car the per-charge range of most gas-powered cars. But many models are powered purely by electricity. Enabling those cars to compete with comparable gas-powered models on cost and convenience is the aim of Better Place around the globe.

Earlier this year, the first Renault EVs with “switchable” batteries were delivered to Better Place customers in Israel, where 20 switching centers have opened throughout the country. The new refueling option is also now available to Better Place drivers in Denmark. In September, in the Netherlands, the company opened a switching station at the Amsterdam Airport Schiphol for electric taxis that serve airport travelers and drive upwards of 50,000 miles per year.

Israel, the Netherlands and other European countries are especially fertile ground for the Better Place approach. “Outside the U.S., transportation is viewed as a more practical, non-partisan, logistical issue,” said Jim Marston, Vice President of EDF’s Energy Program. “Many of these cities and countries are really pushing the envelope to find alternatives that serve their citizens without sacrifice, but also address carbon and oil dependency.”

Company leaders intend to succeed first where the market conditions are most attractive, and then expand to other countries more broadly, like the U.S. Though its American presence is relatively small, Better Place is already operating a network of charging stations in Hawaii and developing an electric taxi project in the San Francisco Bay Area.

“Hawaii is a good place to start in the U.S. because its location makes it so dependent on imported oil, and EVs support the state’s goal to cut dependence on imported fossil fuels by at least 70 percent by 2030,” said Proctor.

Eventually, EVs that take advantage of Better Place’s services will not only be consumers of the grid’s energy, but also providers. The company has developed an in-car navigation and energy management system that connects each car to the Better Place network, and the network’s operations center communicates with electric utilities and takes energy availability into account. This enables the company to simultaneously manage the charging of thousands of cars and their batteries to serve as mobile energy storage that can “smart charge” at night when wind power is abundant and cheap, and ultimately feed the grid during peak hours when most energy is used. The result is a heavier reliance on clean, renewable, home-grown energy and less harmful air pollution and damage done by domestic oil drilling and coal mining.

Innovation highlights

  • What: Better Place is installing EV charging station infrastructure and battery switching stations for electric vehicles around the globe.
  • Where: The company’s first three markets are Denmark, Israel and Australia; Better Place also has projects in the U.S., the Netherlands and China.
  • Why it matters: The electrification of the transportation sector is underway, and Better Place offers an innovative service model to alleviate “range anxiety” and make EV charging quick and easy, while addressing the relatively high cost of EVs.

The switching concept makes sense for several reasons. Battery switch enables us to address the relatively high cost and limited driving range of EVs,

John ProctorDirector of Global communications, Better Place

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