Autos Part 2: Carmakers Slow to Adopt New Battery

  • The powertrain of the Chevy Volt. This concept image shows the lithium ion battery pack running down the center of the vehicle. (Image courtesy of GM)

Car companies are making plenty of promises these days about future
cars that will save you gas. To make them happen,
automakers are counting on a new kind of battery. They’re called lithium ion
batteries. These batteries could bring about a revolution in automobiles.
In the second part of a two-part series on green cars, Dustin Dwyer reports it could take a while for the revolution to get
here:

Transcript

Car companies are making plenty of promises these days about future
cars that will save you gas. To make them happen,
automakers are counting on a new kind of battery. They’re called lithium ion
batteries. These batteries could bring about a revolution in automobiles.
In the second part of a two-part series on green cars, Dustin Dwyer reports it could take a while for the revolution to get
here:


Lithium ion sounds like a complicated term. And you don’t necessarily need to know
what it means. But it might help to know that you already use lithium ion batteries every
day:


“It’s being used now in video cameras, personal phones, it’s in iPods, it’s in a lot of small
electronics and in, of course, laptop computers.”


That’s Jim Hall. He’s a consultant to the auto industry. His company is called 2953
Analytics. Hall’s had some experience working on battery powered cars. He says lithium
ion batteries are attractive because they can store a lot more power than the batteries in
today’s hybrid vehicles, and Hall says in the race to get lithium ion batteries into cars,
there are two leading companies: General Motors and Toyota.


They have different approaches to getting the batteries ready, but they both depend on
contractors outside the company to figure out the complicated chemistry. Hall says the
problem is right now, they need a breakthrough:


“And the breakthrough could come from an entirely different source. It could be from
another company that neither company is dealing with. It could. That’s the thing with
breakthroughs. You can’t predict how and when they happen.”


As we mentioned, battery engineers have already invented ways to make lithium ion
work in small things like cell phones, laptops and power drills. But it’s not as easy to
make the batteries work for something big, like a car.


Hall says one problem is cost. Lithium ion batteries are expensive. Another problem is
heat. The more energy you store in a lithium ion battery, the better the chances that the
battery could become unstable. If it becomes too hot, the battery could explode. That’s
already been a problem in some laptops.


Bob Lutz is the Vice Chairman of General Motors. He says his company has already
solved the heat problem with lithium ion batteries by using a different chemistry than
what’s in laptops:


“We’ve cycled ’em in hot rooms, maximum discharge rate, and cut out the cooling system
to simulate a cooling system failure in the car, and we’ve had a temperature rise of maybe
eight degrees centigrade, I mean, just not enough to worry about.”


GM expects to put the batteries in test cars and start running them on roads late this
spring. The goal is a lithium ion powered hybrid car named the Chevy Volt. It will go
forty miles on battery power alone, before a gas engine has to kick in. Lutz says he has no
doubt that the Volt will be ready to go by mid-2010, but officially, GM has not
set a production date.


Toyota says it’s also shooting to have the technology ready by 2010. But no other
automaker will even mention a date for lithium ion batteries. Not Ford. Not Honda. Not
Chrysler. Chrysler President Tom Lasorda says there’s a reason for that:


“When you’re trying to predict when a technology is going to be ready for mass market,
it’s very tough. Because you don’t know what the surprises might be.”


In the next few years, you can expect auto executives to make a lot of references to
lithium ion batteries. And basically anyone you talk to in the industry says these
batteries are no doubt, the next big thing that will save you gas.


The question is when. When will lithium ion batteries actually be in your car? Maybe
2010. Maybe a lot later. No one can really say for sure.


For the Environment Report, I’m Dustin Dwyer.

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