They have a lower capacity, but in a stationary installation we can just use more cells. And they are suppoosed to last indefiniely, the original batteries are still inplace and operational according to the articles. They cannot be overcharged, and can be run competely flat. All they need is recharging and distilled water.
I understand the Telsa want the new tech for the car batteries, and needs the extra sales volume; but for homes, wouldn't NiFe be a better choice?
The article does say that they have been used industrially for a long time. But that doesn't get them anywhere near the consumers. Historically, there was little demand for home efficiency and probably SLAs took the other markets. Now, nickel-iron has to compete with the lithiums that are matching on longevity and way out performing on energy density. The only problem left for lithiums is the easy of damage. Reverse charging, in particular, just wipes them out.
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Does anyone know what is the problem with nickel iron (Edison) batteries?
http://en.wikipedia.org/wiki/Nickel–iron_battery
They have a lower capacity, but in a stationary installation we can just use more cells. And they are suppoosed to last indefiniely, the original batteries are still inplace and operational according to the articles. They cannot be overcharged, and can be run competely flat. All they need is recharging and distilled water.
I understand the Telsa want the new tech for the car batteries, and needs the extra sales volume; but for homes, wouldn't NiFe be a better choice?