Yvonne Carts-Powell

Semi-solid flow battery, solution for e-cars?

In Batteries, Science, technology on June 6, 2011 at 12:09 pm


Conventional batteries combine the electricity-producing material and the reaction chamber into a tidy, sealed package.  But this may not be the best way to power electric cars of the future.

Your Duracell AAs die when the materials inside can’t provide any more charge. Your Li-ion laptop battery (and conventional lead-acid 12-V car battery, for that matter) are rechargeable, but it still takes a while.

Flow batteries depend on introducing new material (usually a liquid) into the reaction chamber. A variety of advantages offset the more complicated plumbing.

MIT researchers suggest that instead of pumping gas into a car’s gastank, refueling an electric car could involve draining  an exhausted solution and replacing it with recharged solution. The exhausted solution could be charged slowly, at the station, and the electric car would retain the same reaction chamber.

Instead of a liquid, they’re using solids in suspension. Read more about their semi-solid lithium rechargeable flow battery in a (well-written) news release: New battery design could give electric vehicles a jolt

or their paper in Advanced Materials: Semi-Solid Lithium Rechargeable Flow Battery

Photo: Dominick Reuter

  1. What is there that use this battery?

  2. Hi Allan. I don’t know of any current commercial use for this battery. I do know that big liquid flow batteries are used for some industrial-sized applications that require a lot of power for a relatively short time.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s

%d bloggers like this: