World’s largest capacity hybrid EV battery unveiled by Chinese firm

Chinese battery maker Svolt Energy has unveiled the world’s largest capacity plug-in hybrid electric vehicle (PHEV) battery pack, the Fortress 2.0, featuring an 80 kWh capacity. Announced at the company’s sixth Battery Day in Changzhou, this battery targets large family (D-segment) vehicles, offering extended electric-only driving ranges to meet growing consumer demand. The pack improves volume utilization and energy density by 6% over its predecessor and supports ultra-fast charging at up to 6C, enabling a charge from 10% to 80% in about 10 minutes under optimal conditions. This development aligns with automakers’ efforts to extend electric operation in hybrids without fully transitioning to battery electric vehicles (BEVs). In addition to the large battery pack, Svolt introduced its 3.5 generation ion oscillation pulse charging technology, which reduces charging time by approximately 25% compared to its previous system without increasing costs. This method optimizes lithium-ion distribution during