Re: [EVDL] EVLN: Flywheels for L3 Charging EVs in 10 Minutes

[Alan Arrison via EV]

Sigh, good luck with that.

Can it be done? Probably.

What would it cost? A fortune.

Al



In places where grid capacity is limited, flywheel batteries can be deployed
to provide the powerful surge of electricity needed to recharge a car
battery quickly. The current produced is strong enough to charge a battery
in ten minutes, according to a promotional video by the startup.

With this technology, Chakratec hopes to make electric vehicle charging
stations commerically viable in rural areas—that is, cheaper to build and
operate where upgrading the grid for fast electric vehicle charging can be
prohibitively expensive.

A $4.4-million funding round announced Sunday will help the startup test its
energy storage system as part of three pilots with European electric
utilities.




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Re: [EVDL] EVLN: Flywheels for L3 Charging EVs in 10 Minutes

[robert winfield via EV]

 regarding flywheel energy storgage4 comments1) Look up Beacon Energy stock 
symbol was BCON. ( i used to own the stock)their flywheels, cylindrical, 
vertical if i recall correctly, were base powered at 25kWh and spun up to 50kWh 
and were scalable (the 25 and 50 may be off, but)there was an explosion when 
one "wobbled" or something. (omega squared times radius for energy a bunch of 
years ago
2) when my spouse was working, 25 years ago, an ultracentrifuge was oversped 
(too fast), at about 70,000rpm in a vacuum and exploded and the titanium 
centrifuge "slamdanced" around the centrifuge room for about 20 minutes3) 
ultracentrifuge heads need to be routinely inspected for microcracks and stress 
(titanium) with high tech equipment and still get taken out of service after a 
certain time limit4) I had to take a centrifuge off line as the metal trunions 
had "flowed to oval from circular" due to overspeeding that the buckets swung 
up in and were held by
I have become leery of certain types of energy storage due to life threatening 
events
On Monday, May 21, 2018, 4:06:46 AM EDT, brucedp5 via EV 
 wrote:  
 
 

https://www.calcalistech.com/ctech/articles/0,7340,L-3738031,00.html
Using Flywheel Batteries to Charge Electric Vehicles in Ten Minutes
14.05.18  Meir Orbach and Asaf Shalev

[image  
https://images1.calcalist.co.il/PicServer3/2018/05/14/817038/23_l.jpg
Chakratec's concept for an electric vehicle charging station
]

Chakratec Ltd., an Israel-based battery startup, raises $4.4 million as it
tackles some of the last obstacles holding back electric cars

Even as electric vehicles appear to be on the verge of going mainstream,
there are at least two major roadblocks holding back the technology. One is
the lack of charging infrastructure outside of cities, which makes
long-distance travel impossible, or at least nerve-wracking. Another
significant inconvenience is the amount of time is takes, sometimes hours,
to charge electric vehicles.

An Israel-based startup called Chakratec Ltd. is trying to solve both
problems by developing what it calls a kinetic battery device, which stores
energy using a flywheel instead of relying on chemical compounds like in
lithium-ion batteries.

In places where grid capacity is limited, flywheel batteries can be deployed
to provide the powerful surge of electricity needed to recharge a car
battery quickly. The current produced is strong enough to charge a battery
in ten minutes, according to a promotional video by the startup.

With this technology, Chakratec hopes to make electric vehicle charging
stations commerically viable in rural areas—that is, cheaper to build and
operate where upgrading the grid for fast electric vehicle charging can be
prohibitively expensive.

A $4.4-million funding round announced Sunday will help the startup test its
energy storage system as part of three pilots with European electric
utilities.

The investment round, which was led by iArgento, an Israel-based family
office, and Goldbell Corporation Pte Ltd., a Singapore-based distributor of
industrial vehicles, brings Chakratec’s total equity funding to $7.6 million
since its founding in 2013.
[© calcalistech.com]


+
https://insideevs.com/gas-stations-benefit-electric-vehicles/
Gas Stations Will Adapt To Benefit From Electric Vehicles
While some in the oil and auto industries still have their heads firmly
ensconced in the sand (or perhaps another, more malodorous metaphorical
location), others …
https://youtu.be/T6xVvpqsqYI




For EVLN EV-newswire posts use:
 http://evdl.org/archive/


{brucedp.neocities.org}

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