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To: Goose94 who wrote (13370)6/19/2015 10:55:45 PM
From: longzRespond to of 202170
 
http://www.siliconinvestor.com/readmsg.aspx?msgid=30115518

From: The Jack of Hearts
6/19/2015 10:35:47 PM

of 430
Aluminum batteries Graphite Cathode

Graphite cathode An aluminum-ion battery consists of two electrodes: a negatively charged anode made of aluminum and a positively charged cathode.

"People have tried different kinds of materials for the cathode," Dai said. "We accidentally discovered that a simple solution is to use graphite, which is basically carbon. In our study, we identified a few types of graphite material that give us very good performance."

For the experimental battery, the Stanford team placed the aluminum anode and graphite cathode, along with an ionic liquid electrolyte, inside a flexible polymer- coated pouch.

"The electrolyte is basically a salt that's liquid at room temperature, so it's very safe," said Stanford graduate student Ming Gong, co-lead author of the Nature study.

Aluminum batteries are safer than conventional lithium-ion batteries used in millions of laptops and cell phones today, Dai added.

"Lithium-ion batteries can be a fire hazard," he said.

More at...

news.stanford.edu