SVOLT Unveils Stacking 4.0 Battery Tech: 16-Layer Simultaneous Stacking, Doubled Efficiency, Mass Production in Q2 2026

SVOLT Energy officially unveiled its Stack 4.0 battery technology at its 6th Battery Day on January 13. The new technology introduces an industry-first "16-layer simultaneous stacking" process, doubling the efficiency compared to the previous Stack 3.0's "8-layer flying stack" method and enabling compatibility with larger-format cells. A single Stack 4.0 production line achieves an annual capacity exceeding 1 GWh, reducing cost per watt-hour by 34%. According to the announcement, the 2D/3D design for this technology was completed by the end of 2025, with mass production scheduled for Q2 2026.