The Chinese energy storage manufacturer Biwatt is now selling a sodium-ion-powered C&I product. Powerlake I2 is considered safer than other energy storage systems because its cells don’t have the potential to ignite on their own.
All the components of Powerlake I2, including energy storage and an inverter, are combined in one control cabinet. The operation of the maintenance guard is able to remain stable despite temperatures of -30°C to5°C. If there is a blackout, the system changes to off-grid power within 20 milliseconds to prevent any loss of power.
There are 11 modules made up of 230 Ah cells in the Biwatt battery. 14 modules are found in every Powerlake-I2 system. The operating voltage is allowed anywhere from 448 V to 885 V. In these conditions—25°C, 80% depth of discharge, and a charge/discharge rate of 0.5 “C-rate” over two hours—the battery has the ability to cycle 6,000 times. When the battery is discharged at a 0.5 C-rate, it can output 148 A, and the max direct-current power is 100 kW. The output voltage amount is 400 V.
The air-cooled system can function normally as high as 4,000 m. Beyond 2,000 m, its power will decrease. The cabinet where the controls are stored weighs 2.2 tons and has dimensions of roughly 1.6 m by 1 m by 2 m. Because it has an IP54 rating, the system is secure from outside sources but cannot be installed outdoors.
Experts consider sodium-ion batteries to be a promising approach instead of lithium-based ones. Manufacturers of solid-state batteries guarantee increased stability, better cost, and environmentally friendly outcomes because sodium can be used globally.
