Quick Takeaways
- The 80 kWh PHEV battery sets a new capacity and fast-charging benchmark for plug-in hybrids.
- Svolt’s semi-solid-state roadmap and profitability push show the supplier’s move into next-generation electrification leadership.
On Tuesday, Svolt Energy revealed its latest Svolt Energy 80 kWh PHEV battery pack, positioning it as the world’s highest-capacity battery system developed specifically for plug-in hybrid vehicles. The Fortress 2.0 battery was introduced at the company’s sixth Battery Day in Changzhou, Jiangsu province, with a strong focus on the family car market.
The new battery pack is built around a highly integrated system architecture that improves volume utilization by 6 percent while increasing overall system energy density. This compact yet high-capacity design allows automakers to install larger batteries without sacrificing interior space or vehicle efficiency.
How the Svolt Energy 80 kWh PHEV battery pack improves charging and range
The Fortress 2.0 battery cells use ultra-fast charging graphite technology that supports peak charging rates of up to 6C. This enables the battery to charge from 10 percent to 80 percent in just 10 minutes, significantly improving everyday usability for plug-in hybrid drivers.
Key performance highlights include:
The growing demand for long-range hybrids was underlined when Leapmotor introduced its D19 SUV in October. The extended-range electric version uses an 80.3 kWh battery pack and delivers up to 500 kilometers of driving range, demonstrating how large-format hybrid batteries are moving closer to full EV capability.
Both extended-range electric vehicles and plug-in hybrid vehicles belong to the hybrid category. The difference is that in an EREV, the combustion engine only acts as a generator, while in a PHEV it can directly drive the wheels.
Svolt Energy 80 kWh PHEV battery pack supports next-generation battery roadmaps
During the same event, Svolt also shared updates on its semi-solid-state battery program. Its first-generation high-nickel semi-solid battery has entered small-scale production, delivering an energy density of 270 Wh/kg and already being installed in a European passenger car model.
The company’s second-generation high-nickel semi-solid battery, aimed at low-altitude aviation, has achieved 342 Wh/kg. It has been integrated into an eVTOL aircraft and successfully validated through flight testing, showing Svolt’s expansion beyond automotive applications.
A mid-nickel semi-solid battery designed for higher-volume markets is scheduled for mass production in October 2026. With an energy density of 245 Wh/kg, it will support mid- to high-end passenger vehicles, strengthening Svolt’s product portfolio alongside the Svolt Energy 80 kWh PHEV battery pack.
Fast charging innovation enhances the Svolt Energy 80 kWh PHEV battery pack
Svolt also introduced its 3.5th-generation ion oscillation pulse charging technology. Compared with its second-generation system, it cuts charging time by 25 percent without increasing costs. The technology has completed more than 20,000 cumulative hours of testing and will be deployed across multiple models on a customer’s new platform from the third quarter of 2026.
This charging breakthrough further enhances the competitiveness of the Svolt Energy 80 kWh PHEV battery pack by improving real-world charging convenience without adding complexity or expense for vehicle manufacturers.
Svolt’s growth outlook and market position
Svolt reported its first-ever quarterly profit in the fourth quarter of 2025 and is targeting full-year profitability in 2026. The company plans to ship 61 GWh of batteries in 2026, which would represent a 50 percent increase over its 2025 volumes.
Originally established as the battery division of GWM in 2012, Svolt became an independent company in February 2018. Since then, it has focused on developing advanced battery materials, cells, modules, packs, battery management systems, and energy storage solutions.
In November, Svolt ranked eighth in China’s power battery installation market, achieving 2.45 GWh of installed capacity and a 2.62 percent market share, highlighting its growing influence in the global electrification supply chain.
The new battery pack is built around a highly integrated system architecture that improves volume utilization by 6 percent while increasing overall system energy density. This compact yet high-capacity design allows automakers to install larger batteries without sacrificing interior space or vehicle efficiency.
How the Svolt Energy 80 kWh PHEV battery pack improves charging and range
The Fortress 2.0 battery cells use ultra-fast charging graphite technology that supports peak charging rates of up to 6C. This enables the battery to charge from 10 percent to 80 percent in just 10 minutes, significantly improving everyday usability for plug-in hybrid drivers.
Key performance highlights include:
- 80 kWh class energy capacity
- 6 percent higher volume utilization
- 6C peak fast-charging capability
- 10–80 percent charge in 10 minutes
The growing demand for long-range hybrids was underlined when Leapmotor introduced its D19 SUV in October. The extended-range electric version uses an 80.3 kWh battery pack and delivers up to 500 kilometers of driving range, demonstrating how large-format hybrid batteries are moving closer to full EV capability.
Both extended-range electric vehicles and plug-in hybrid vehicles belong to the hybrid category. The difference is that in an EREV, the combustion engine only acts as a generator, while in a PHEV it can directly drive the wheels.
Svolt Energy 80 kWh PHEV battery pack supports next-generation battery roadmaps
During the same event, Svolt also shared updates on its semi-solid-state battery program. Its first-generation high-nickel semi-solid battery has entered small-scale production, delivering an energy density of 270 Wh/kg and already being installed in a European passenger car model.
The company’s second-generation high-nickel semi-solid battery, aimed at low-altitude aviation, has achieved 342 Wh/kg. It has been integrated into an eVTOL aircraft and successfully validated through flight testing, showing Svolt’s expansion beyond automotive applications.
A mid-nickel semi-solid battery designed for higher-volume markets is scheduled for mass production in October 2026. With an energy density of 245 Wh/kg, it will support mid- to high-end passenger vehicles, strengthening Svolt’s product portfolio alongside the Svolt Energy 80 kWh PHEV battery pack.
Fast charging innovation enhances the Svolt Energy 80 kWh PHEV battery pack
Svolt also introduced its 3.5th-generation ion oscillation pulse charging technology. Compared with its second-generation system, it cuts charging time by 25 percent without increasing costs. The technology has completed more than 20,000 cumulative hours of testing and will be deployed across multiple models on a customer’s new platform from the third quarter of 2026.
This charging breakthrough further enhances the competitiveness of the Svolt Energy 80 kWh PHEV battery pack by improving real-world charging convenience without adding complexity or expense for vehicle manufacturers.
Svolt’s growth outlook and market position
Svolt reported its first-ever quarterly profit in the fourth quarter of 2025 and is targeting full-year profitability in 2026. The company plans to ship 61 GWh of batteries in 2026, which would represent a 50 percent increase over its 2025 volumes.
Originally established as the battery division of GWM in 2012, Svolt became an independent company in February 2018. Since then, it has focused on developing advanced battery materials, cells, modules, packs, battery management systems, and energy storage solutions.
In November, Svolt ranked eighth in China’s power battery installation market, achieving 2.45 GWh of installed capacity and a 2.62 percent market share, highlighting its growing influence in the global electrification supply chain.
Company Press Release
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