Tesla CTO JB Straubel Says His Company Can Charge Electric Vehicles … | Electric Cars and Hybrid Vehicle - Green energy

Tesla CTO JB Straubel Says His Company Can Charge Electric Vehicles …

26 Мар 2014 | Author: | Комментарии к записи Tesla CTO JB Straubel Says His Company Can Charge Electric Vehicles … отключены
Tesla Motors Electric Cars

Forget Battery Swapping: Aims to Charge Electric in Five Minutes

Why It Matters

vehicles take too long to to be practical for most consumers.

service: A Tesla charging in Hawthorne, California.

Electric take too long to recharge. To a Tesla Model S just takes five hours at a home or public charging But in its effort to make electric more practical, Tesla is quickly reducing the charging

Last September, it unveiled a of “supercharging” stations —designed for its Model S and future electric could charge a battery in 30 minutes. In May, it announced an that cut that time to 20 Now Tesla’s chief technology JB Straubel, says the company could cut the time it takes to charge the battery to just minutes—or not much longer it takes to fill a gas tank.


Straubel isn’t referring to the swap technology Tesla unveiled (see “Why Thinks It Can Make Battery Work ”). That system charge batteries quickly. It takes out a depleted battery and it with a fully charged

He’s talking about might be a more appealing for drivers: recharging the battery in car while you wait.

“It’s not to happen in a year from It’s going to be hard. But I we can get down to five to 10 minutes,” said in an interview with MIT Review . He noted that the superchargers, which deliver 120 of electricity, “seemed pretty even 10 years ago.” public charging stations well under 10 kilowatts.

Tesla is far ahead of its competition its supercharging technology. For example, the popular fast-charging technology is based on the Japanese Chademo which enables 50-kilowatt Even SAE International’s brand-new standard, which was finalized in and is being adopted by major such as GM, tops out at 100 kilowatts.

One Tesla has pushed the technology so is that its battery packs more than three the energy of its competitors’ electric-car As a result, they require power to charge quickly, Arindam Maitra, a senior manager at the Electric Power Institute .

Straubel says Tesla has able to rapidly improve because it designs and builds all of the key itself, including the chargers, the for monitoring the battery pack, and a system for the battery. They’re all to work together in a way that’s not for systems built to accommodate different models of electric

If an electric car is plugged directly a wall socket, on-board take AC power from the convert it to DC, and regulate the power to the battery. Fast charging or bypasses the onboard charger; the conversion happens outside the

Tesla Motors Electric Cars

One challenge of fast charging is delivering power to a battery rapidly can cause it to overheat. To damaging the battery, the outside needs to communicate with the that monitor the state of the including their voltage and and quickly adjust charging accordingly. “To do that kind of everything has to be designed and working in synchrony,” Straubel says.

five-minute charges will not only further improving the system, but also improving the with the electrical grid. As it is, some places on the grid can 120-kilowatt charging. Drawing amounts of power from the also incurs demand from the utility, increasing the of the system.

But Straubel says that plans to get around these by equipping supercharging stations solar panels and batteries.

solar power in batteries in the station could also be to operators of the power grid “Wind Turbines, Battery Can Keep Power Supplies ”). They could provide a way to moderate fluctuations on the grid, that’s becoming more as more intermittent sources of such as solar and wind, are Tesla plans to test a system soon in California.

It charge utilities for this which, Straubel says, help offset the cost of the

Even though these breakthroughs would be useful on Tesla’s cars, they could be important for expanding the EV Tesla plans to introduce in the $30,000 to $35,000 range in the few years.

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