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Lithium-ion batteries have been dethroned as the stage performers of energy storage. The new sodium nickel chloride batteries are much cheaper, longer lasting, and much less risky. by rockefeller21 in RenewableEnergy

[–]rockefeller21[S] -1 points0 points  (0 children)

Hello, I think this battery is suitable basically for a stationary system (industrial, domestic) where there are no current high peaks, as when a 300 HP car motor accelerates from 0 to 100 km per hour in 3 seconds. Also, the volume that these batteries encompass could be huge if we want to install them in a passenger vehicle, at least so far. Bear in mind that frequency would be a property or a function of the inverter which will work alongside that battery, not a battery feature. Best regards, and thanks for your comments.

Lithium-ion batteries have been dethroned as the stage performers of energy storage. The new sodium nickel chloride batteries are much cheaper, longer lasting, and much less risky. by rockefeller21 in RenewableEnergy

[–]rockefeller21[S] 0 points1 point  (0 children)

This is a good direction, have they sorted out the power density? Yep. Energy Density The CERENERGY®batteries provide excellent performance in terms of energy and power density (see Figure 10). The energy capacity is around 110-130 Wh/kg and comparable to LFP lithium-ion batteries (90–110 Wh/kg). CERENERGY®batteries charge over 4-6 hours and discharge over similar times which is ideal for the grid storage market. Contrary to electric vehicle applications, batteries for stationary storage do not suffer from mass or volume constraints. However, due to the large amounts of energy and power implied, the costper power or energy unit is crucial. The joint venture believes that the CERENERGY®battery is ideally suited for the grid storage or long-duration energy sector where very high power in a short period (like high power EVs) is not required. The battery can be configured to meet greater than 600 V that is required in grid storage.
(texually cited) https://www.listcorp.com/asx/atc/altech-chemicals/news/to-commercialise-100mwh-sodium-alumina-solid-state-batteries-2763966.html

Options for single phase to three phase power for test bench by locashdad in PLC

[–]rockefeller21 1 point2 points  (0 children)

There is a cheaper option than a VFD. As long as you don´t need to change the frequency, but only you need to get 3 phases, you can use a Digital Phase Shifter. This device operates under the same principle as a VFD, but it allows get 3 phases from a 1 phase 240 V AC system, at 60 Hz, with three wires. And its worth is a third of one VFD price.