Formula E Battery Infographic

JUL 24 2015 BY STAFF 17

Check out this infographic on the battery used in the Formula E electric racing series:

Formula E Battery Infographic

Formula E Battery Infographic

Categories: Battery Tech, Racing

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17 Comments on "Formula E Battery Infographic"

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Mike

Is that a really long way of saying its a 35kWh battery ?

RS

They aren’t very good batteries, but if you make some strange comparisons, they don’t sound that bad…

James

Racing improves the breed. Enough said.

This formula won’t change on the EV side of automobiles. He who has the lightest, most compact and energy-dense battery wins.

Speculawyer

I’d like to see them go from a drive switching cars to the pit crew switching a battery pack.

This jumping out of one car and into another just doesn’t feel right and makes EVs look weak.

Battery exchanges aren’t much better. Back when we were running Formula Lightnings (1994-2004), we could easily have raced 100 km at reasonable speeds on a single charge of our Pb-acid batteries. But, at 12 seconds to change a pack, the optimum pit stop distance was every 10 to 15 km. It only reinforced the notion that EV range was inadequate. And the lack of engine noise masked the fact that we were hitting 240 km/hr at the fast tracks, so we gained zero spectator excitement from the incrementally higher speeds battery exchanges allowed.

Pushmi-Pullyu

EV batteries have improved quite a bit since those days, haven’t they? 🙂

Djoni

But if they switch battery let say 2 times in the race plus the first one in it would allow them to go how much faster ?
Swithing battery could be exiting too, just like the usual tire change pit stop in regular race.

Pushmi-Pullyu

That was exactly my thought, too. Allowing unlimited battery swapping would create competition for faster swapping.

It would also make for interesting strategies. “Do we go for a larger, heavier battery pack, to minimize the number of times we have to swap out during a race? Or do we go with a smaller, lighter pack so our cars are more maneuverable an accelerate faster, at the expense of more swaps? What is the ‘sweet spot’?”

In my opinion, running an electric car race as a relay race is just lame.

Will

you do realise this is the long-term evolution of Formula E, right? It starts off with same car, same rules. Next season, they can customise the battery, season after that they can customise the motor, etc.

sven

Dave,

That is an fantastic and enlightening presentation/sermon that you gave in the link in your screen name. It was as good as some of the best TED Talks that I have watched! I have a question regarding the “Energy Intensity vs. Fuel Mileage” graph. Where does the NYC subway (I’m a daily user) fall on that graph? I’m guessing the very high number of passengers more than offsets the relatively short distance/miles traveled to make it as efficient as light rail (US best).

Thanks for the kind words. I don’t have any data specific to NYC’s system, and it’s been decades since I rode it, so I’ll have to ask questions that will help you evaluate it relative to the average. Keep in mind that most heavy rail systems maintain very high load factors during the peak hours. Does NYC maintain high load factors through the late night hours better than other cities? compared to other citiesHow much closer together are the stops in NYC? One of San Diego’s advantages is that the stops are fairly far apart, by light rail standards, almost resembling heavy rail.

Sorry for the garbling. I must have clicked something wrong while attempting to edit.

Pushmi-Pullyu

Speculawyer said:

“I’d like to see them go from a drive switching cars to the pit crew switching a battery pack.

“This jumping out of one car and into another just doesn’t feel right and makes EVs look weak.”

Hear, hear!

Ambulator

A Tesla battery could go the whole race, but not as fast. But that’s what would make the events interesting to me; the constant effort to improve the power density of the batteries and the speed of the race. The artificial excitement of a “fan boost” doesn’t work at all.

Jeff D

Or in the case of electric vehicles, it’s don’t hear don’t hear.

James

I would like to see two-driver teams with mid-race switch …the second car is already on the pit tarmac, ready to fly once driver one crosses a line on pit row. A relay, if you will. The current car swap inside the garage is terrible…Makes the sport look tacky and bad for the fans.

James

A hot-swap battery swap In the pits would work if it didn’t take four minutes…one minute or less would work. F1 pitstops have become “pit blinks”… Totally useless for fan entertainment. The old days, when pit stops for racecars took longer gave fans a break from the action, tempo change and another phase of competition to capture interest.