New Battery Technology Might Make Solar Power More Practical


I ran across an item last night about a new kind of battery that might be a breakthrough in the knotty puzzle of storing solar power during the day for use at night:

“Now we have a good chance of solving that problem,” says Michael Aziz, a materials scientist at Harvard University in Cambridge, Massachusetts. His solution is a flow battery that packs a high energy density with no need for the expensive metals found in other models.

….The most advanced commercial flow batteries rely on vanadium ions….“The problem is, vanadium is really expensive,” says Aziz….Over the past few decades, researchers have investigated many other chemical systems, and ruled all but a handful out. “The periodic table has been pretty well picked over,” says Aziz. “So we’ve introduced the world of organic chemistry to this problem.”

His battery’s anode uses a solution of sulphuric acid containing a type of organic compound known as a quinone. The quinone is cheap and needs no catalytic urging to react with protons to form a higher-energy hydroquinone, thereby charging the battery. Aziz teamed this half of the flow battery with a well-known partner: a cathode that alternates between bromine and hydrobromic acid.

How about that? Back in 1977, Mike and I played tennis together at Caltech. Now he’s saving the world with applied physics and I’m, uh, I’m….

Right. Enough about that. Anyway, if it works out, we’ll all have 500-gallon tanks of quinones buried in our yards someday to store the power from the solar cells on our roofs. Cool.

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SIX TRUTHS

Reclaiming power from those who abuse it often starts with telling the truth. And in "This Is How Authoritarians Get Defeated," MoJo's Monika Bauerlein unpacks six truths to remember during the homestretch of an election where democracy, truth, and decency are on the line.

Truth #1: The chaos is the point.

Truth #2: Team Reality is bigger than it seems.

Truth #3: Facebook owns this.

Truth #4: When we go to work, we're in the fight.

Truth #5: It's about minority rule.

Truth #6: The only thing that can save us is…us.

Please take a moment to see how all these truths add up, because what happens in the weeks and months ahead will reverberate for at least a generation and we better be prepared.

And if you think journalism like Mother Jones'—that calls it like it is, that will never acquiesce to power, that looks where others don't—can help guide us through this historic, high-stakes moment, and you're able to right now, please help us reach our $350,000 goal by October 31 with a donation today. It's all hands on deck for democracy.

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