Boeing’s 787 Battery Solution illustrates why the All-Electric Car remains more of a Novelty than a Legitimate Car

Posted by PITHOCRATES - April 7th, 2013

Week in Review

The problem with the all-electric car is the battery.  To get a decent range requires a large battery.  But a large battery adds weight.  The heavier the car is the more battery power it takes to drive the car.  Which, of course, decreases the range.  So the only solution to this problem is to come up with a better battery.  One that is smaller and lighter that can charge quickly and provide great range.  Currently, that battery is the lithium-ion battery.  The same technology Boeing used on their new 787 Dreamliner.  Those same planes that showed the drawbacks of getting more energy out of a smaller and lighter battery.  They generate a lot of heat.  And can burst into flames (see Boeing has “good” Dreamliner battery plan fix: official by Doug Palmer and Alwyn Scott posted 4/5/2013 on Reuters).

Boeing Co (BA.N) has a “good plan” to fix the battery problem that has grounded its 787 Dreamliner jets, U.S. Transportation Secretary Ray LaHood said on Friday as the company prepared for a test flight to check the battery system revamp…

It’s still unknown what caused the two batteries to overheat, and the National Transportation Safety Board is investigating. Boeing came up with measures it says make the battery safe. It put more insulation in the battery, encased the battery in a steel box, changed the circuitry of the battery charger and added a titanium venting tube to expel heat and fumes outside the plane.

This is a good fix for an airplane.  For if there is a fire in the battery compartment you want to vent the heat and fumes outside of the airplane.  So the airplane doesn’t catch on fire.  Of course, this solution is not a very good one for an all-electric car that parks in attached garage plugged in overnight.  For there will be no freezing air blowing across that titanium tube like a plane flying at 40,000 feet.  That intense heat just may start the car on fire.  Or the garage.

To increase sales of the all-electric car they need to increase the range.  Even if you’re driving at night in winter with the heater and lights on.  And get stuck in stop and go traffic that adds an hour to your drive-time home.  But to do this you need to put more energy into a smaller package.  Which is often not the safest thing to do.  As Boeing learned.  So until they can come up with a battery that can give people the range to make it home safely without the car (or garage) catching on fire the all-electric car will remain more of a novelty than a legitimate car.

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