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Tesla patents hybrid metal-air battery system


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#1 DocM

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Posted 23 September 2013 - 11:07

2 new patents by Tesla for a hybrid battery EV, hybrid meaning a metal-air and a non-metal-air battery acting in a range extending mode similar to a series hybrid.

PhysOrg article: http://phys.org/news...attery-evs.html

http://appft.uspto.g...=DN/20130187591

http://appft.uspto.g...=DN/20130181511


#2 +Chicane-UK

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Posted 23 September 2013 - 18:14

Fascinating. I can't wait to see what other models and inventions they come out with over the coming years. 



#3 Growled

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Posted 23 September 2013 - 18:49

Interesting stuff but have they ever shown it to work in real life?



#4 OP DocM

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Posted 23 September 2013 - 23:59

Metal-air has been demonstrated before in the lab, but as yet not mass produced. Tesla seems ready to fix that.

Using dual power systems is known as a range-extended series hybrid, and that's already been in the market as the Chevy Volt and a few others.

Most people expected the series hybrids next gen iteration to be a mix of fuel cell and LiION, but Tesla opted for two battery types instead. Makes sense as metal-air is potentially very cheap to produce - one version uses aluminum.

#5 CygnusOrion

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Posted 24 September 2013 - 00:25

Too bad Tesla cars are unaffordable by the average Joe.



#6 OP DocM

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Posted 24 September 2013 - 05:39

Metal -air batteries are part of Tesla's strategy to change that. They can be very cheap to make, and with EV's batteries are about 1/3 the cost of the car. They're targeting under $30k for the model after the Tesla X crossover, and ~$30 is about the average car cost in 2013. After that supposedly comes Tesla trucks.

As an example of how big metal-air could be, a disposable aluminum-air has been tested that could last 20,000 km in a compact car. Rechargeable metal-air is the holy grail.

#7 Growled

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Posted 24 September 2013 - 16:40

As an example of how big metal-air could be, a disposable aluminum-air has been tested that could last 20,000 km in a compact car.

 

I didn't know that. That is like, wow! I can see why it's a big thing.



#8 OP DocM

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Posted 25 September 2013 - 00:28

Yup, but I doubt they'd make one that big. A tiny rechargeable M-A would be more useful.



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