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The mention of hydrogen in the headline made me think they were talking about nickel-hydrogen batteries, but this article is actually about nickel-iron batterie
by thescriptkiddie 6y ago
The mention of hydrogen in the headline made me think they were talking about nickel-hydrogen batteries, but this article is actually about nickel-iron batteries. Not sure why they made such a big deal about the hydrogen production as it is an undesirable side reaction that lowers the efficiency of the cell and creates a fire hazard.
- jph00 6y agoIt is 80-90% efficient and has higher energy storage.
- moneytide1 6y agoThe hydrogen production is meant to be a feature while the batteries are fully charged. > "When electricity prices are high, then you can discharge this battery, but when the electricity price is low, you can charge the battery and make hydrogen," says Mulder. > "useful substances can be generated from it too, such as ammonia or methanol, which are typically easier to store and transport." > "...it became a better battery when it was used as an electrolyser too. They were also surprised to see how well the electrodes held up to the electrolysis, which can excessively tax and degrade more traditional batteries."
- taneq 6y ago"It's not a bug, it's a feature?"