Breaking News
News & Analysis

Research project to avoid rare-earth metals for electric motors

6/15/2012 03:01 PM EDT
12 comments
NO RATINGS
More Related Links
View Comments: Newest First | Oldest First | Threaded View
Page 1 / 2   >   >>
I_B_GREEN
User Rank
Rookie
re: Research project to avoid rare-earth metals for electric motors
I_B_GREEN   6/23/2012 1:14:30 AM
NO RATINGS
And weight and cost and life cycle life

I_B_GREEN
User Rank
Rookie
re: Research project to avoid rare-earth metals for electric motors
I_B_GREEN   6/23/2012 1:13:38 AM
NO RATINGS
The space and suport for magnets determine the overal size of the motor. so to not use rare earth magnets or less of them or less expensive types the magnets must get bigger along with the suport structure. Some clever means can minimize this but cannot eliminate it. In most cases the motor size can get bigger. 150 HP motor is the size of a 1 gallon paint can. Compare that to a ICE volume. So 20 to 50 % bigger motors are not a real problem. The volume problem is at the battery side of things.

divide_by_zero
User Rank
Rookie
re: Research project to avoid rare-earth metals for electric motors
divide_by_zero   6/20/2012 11:17:20 PM
NO RATINGS
Mining and refining rare earth metals is messy business. Most ore deposits contain a significant amount of radioactive thorium, which needs to be buried where it won't escape into soil and water. Doing without neodymium where it isn't needed seems like a good idea to me.

chanj0
User Rank
Manager
re: Research project to avoid rare-earth metals for electric motors
chanj0   6/18/2012 6:27:49 PM
NO RATINGS
Question is on supply and demand. China slows down its export of rare-earth material. Why are other countries not ramping up their supply? Do really rare-earth materials only exist in Chinese soil? Nonetheless, as the supply reduces, manufacturer will look into other means. It will induce more research, hoping to reduce dependency on a couple materials. It is good to the Earth and to human. Sometimes, a low cost will create an illusion that over consumption doesn't do harm. In reality, we have learned from the experience of fossil fuel.

daleste
User Rank
CEO
re: Research project to avoid rare-earth metals for electric motors
daleste   6/17/2012 8:09:27 PM
NO RATINGS
The bottom line is cost. If this technology makes the car cheaper to produce and cheaper to operate, it will be a winner.

elPresidente
User Rank
Freelancer
re: Research project to avoid rare-earth metals for electric motors
elPresidente   6/17/2012 7:48:04 PM
NO RATINGS
So, instead of light weight, high power magnets, you replace it with REALLY heavy chunks of iron where regen gets tricky. Come on Junko - China does not have a lock on rare earths...where did you get that idea? They did what the Japanese did with LCDs...price it low, drive out competitors,command your price. Rare earth mines are now ramping up again now that prices have come up to where it's worth extracting.

_hm
User Rank
CEO
re: Research project to avoid rare-earth metals for electric motors
_hm   6/17/2012 2:32:21 AM
NO RATINGS
Is this more materials technology research project? Once you have material with required properties, same software can help to optimise motor design.

DrQuine
User Rank
CEO
re: Research project to avoid rare-earth metals for electric motors
DrQuine   6/16/2012 3:51:56 PM
NO RATINGS
Sounds like a high risk - high (potential) payoff research project. I hope they succeed both to reduce dependence on rare and expensive materials and to reduce end user costs.

Sanjib.A
User Rank
CEO
re: Research project to avoid rare-earth metals for electric motors
Sanjib.A   6/16/2012 3:34:32 PM
NO RATINGS
If I understand correctly, the software would help in optimizing the design of a Switched Reluctance Motor (SRM) for the hybrid/electric vehicles. SRM uses a steel rotor (?) and thus, this could be an alternative solution for avoiding usage of rare earth material in electric vehicles.

selinz
User Rank
CEO
re: Research project to avoid rare-earth metals for electric motors
selinz   6/15/2012 9:12:56 PM
NO RATINGS
It seems to me that rare earth or not, the software would essentially do the same thing. In other words, why wouldn't you want to optimize your motor?

Page 1 / 2   >   >>
Flash Poll
Radio
LATEST ARCHIVED BROADCAST
EE Times editor Junko Yoshida grills two executives --Rick Walker, senior product marketing manager for IoT and home automation for CSR, and Jim Reich, CTO and co-founder at Palatehome.
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Times on Twitter
EE Times Twitter Feed
Top Comments of the Week