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This looks promising - battery technology for renewables

tarheelbybirth

HR King
Apr 17, 2003
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https://interestingengineering.com/...um=mailing&utm_campaign=Newsletter-14-12-2022

To realize the universal goal of net-zero emissions by 2050, the world is keenly looking at advancements in battery technology. Lower costs, higher capacity, and optimal utilization of scarce natural resources are expected to play a major role in taking the mission forward.
Helping to realize the goal, a group of researchers at the University of Sydney has come up with a sodium-sulfur battery with a significantly higher capacity than lithium-ion cells. The battery also costs considerably less to manufacture.

Their findings were published in Advanced Materials.

The need for alternatives

The team led by Dr. Shenlong Zhao from the University’s School of Chemical and Biomolecular Engineering made use of a molten salt mixture of the constituent materials processed from seawater, which considerably reduces the cost.

After a series of downward revisions in the average price of lithium-ion batteries over the decade, rising raw material costs and inflation resulted in a seven percent increase in 2022 to reach $151/kWh.

“Our sodium battery has the potential to dramatically reduce costs while providing four times as much storage capacity. This is a significant breakthrough for renewable energy development which, although reduces costs in the long term, has had several financial barriers to entry,” said Dr. Zhao in a release.

How scientists achieved the result

The concept of sodium-sulfur (Na-S) cells has existed for over 50 years but primarily remained impractical due to their low energy capacity and short life cycles. The researchers have now used a "simple pyrolysis process and carbon-based electrodes to improve the reactivity of sulfur and the reversibility of reactions between sulfur and sodium." This led to a dramatically increased capacity and longevity at room temperature.
 
https://interestingengineering.com/...um=mailing&utm_campaign=Newsletter-14-12-2022

To realize the universal goal of net-zero emissions by 2050, the world is keenly looking at advancements in battery technology. Lower costs, higher capacity, and optimal utilization of scarce natural resources are expected to play a major role in taking the mission forward.
Helping to realize the goal, a group of researchers at the University of Sydney has come up with a sodium-sulfur battery with a significantly higher capacity than lithium-ion cells. The battery also costs considerably less to manufacture.

Their findings were published in Advanced Materials.

The need for alternatives

The team led by Dr. Shenlong Zhao from the University’s School of Chemical and Biomolecular Engineering made use of a molten salt mixture of the constituent materials processed from seawater, which considerably reduces the cost.

After a series of downward revisions in the average price of lithium-ion batteries over the decade, rising raw material costs and inflation resulted in a seven percent increase in 2022 to reach $151/kWh.

“Our sodium battery has the potential to dramatically reduce costs while providing four times as much storage capacity. This is a significant breakthrough for renewable energy development which, although reduces costs in the long term, has had several financial barriers to entry,” said Dr. Zhao in a release.

How scientists achieved the result

The concept of sodium-sulfur (Na-S) cells has existed for over 50 years but primarily remained impractical due to their low energy capacity and short life cycles. The researchers have now used a "simple pyrolysis process and carbon-based electrodes to improve the reactivity of sulfur and the reversibility of reactions between sulfur and sodium." This led to a dramatically increased capacity and longevity at room temperature.
If sodium + sulphur can save the world imagine what Chinese food + farts could do!
 
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Engineering made use of a molten salt mixture of the constituent materials processed from seawater

I wonder if that means that it could be coordinated/aligned with desalination plants. That would be really something.
 
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