svetz
Works in theory! Practice? That's something else
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Open Source Iron Battery
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svetz
Works in theory! Practice? That's something else
From the paper:
Capabilities and limitations:
Compare that to danielfp248's ~30Wh/l Zinc Bromide battery...
An LFP battery off Amazon is around $0.34 W/h, so even at $0.36 W/h just for the raw materials doesn't seem very cheap in comparison. Guessing the pricing in that paper is very conservative.
Capabilities and limitations:
- Voltage: Although the cell shows an open-cell potential of 1.1 V, the voltage may drop as low as ~ 200 mV during high current discharge. This internal resistance reduces available power.
- Volumetric Capacity: 10 Ah/L. This limits the battery to stationary applications.
- Energy density: >3 Wh/L
- Power density: 250 mW/L
- Cycle stability: Stable for greater than 1000 cycles
- Price: $60 per watt-hour for 8 ml cells (as built, including laser-cut housing)
- Price: $0.36 per watt-hour for active materials at wholesale prices
Compare that to danielfp248's ~30Wh/l Zinc Bromide battery...
An LFP battery off Amazon is around $0.34 W/h, so even at $0.36 W/h just for the raw materials doesn't seem very cheap in comparison. Guessing the pricing in that paper is very conservative.
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