Svolt Starts Mass Production of 100-kWh Semi-Solid Packs in Changzhou

Svolt Energy has begun mass production of a 100-kWh semi-solid battery pack it says adds 500 km (311 miles) of range in 12 minutes on a 900-volt, 6C fast charge. The first units rolled off the line at its plant in Changzhou, Jiangsu province, this week, and chairman and CEO Yang Hongxin says the pack already carries nominations from multiple customers.

He didn't say who those customers are. Nor did the announcement, made Monday on Weibo, specify the size of the first batch or the test conditions behind the 12-minute claim. Treat the performance figures as supplier claims until a vehicle carries them through a homologation cycle.

What does the pack actually contain?

The product, branded Dragon Armor, uses a separator transfer-printing process for its semi-solid cells. Svolt says the technique improves intrinsic safety while still supporting fast charging and long service life.

On the thermal side, the pack carries liquid cooling plates on both the top and bottom. Structurally, its underside has six layers of armor that Yang said delivers impact resistance three times the level required by China's national standard.

The cycle-life numbers are the ones worth pinning to the wall:

• More than 3,000 full charge cycles, achieved through high-speed stacking technology
• A theoretical lifetime driving distance north of 1 million km

That million-kilometer figure is theoretical, and Svolt didn't publish the duty cycle behind it. Still, 3,000 cycles would outlast most vehicle warranties by a comfortable margin — the pack would likely outlive the car around it.

Semi-solid as destination, not waypoint

The more strategically interesting statement came from Yang on positioning. Semi-solid batteries — hybrids that move ions through both liquid and solid electrolytes, unlike all-solid-state cells that rely entirely on solids — are often framed as a bridge technology. Svolt rejects that framing.

"It will become a mainstream technology over the long term," Yang said. The company plans to push semi-solid first and all-solid-state second, arguing semi-solid is especially competitive for battery-electric vehicles running ternary chemistry.

That's a defensible bet. In May, Svolt said it aimed to start large-scale production of the 100-kWh semi-solid packs in September, with costs expected to match conventional liquid-electrolyte lithium-ion batteries. The September start has now happened, roughly on schedule. At the same time, the company argued all-solid-state batteries remain a long way from mass production, and predicted 2026 as the year semi-solid adoption goes wide.

Cost parity with liquid-electrolyte cells, if confirmed, would remove the main reason an OEM would wait. That's the claim to watch.

Where Svolt sits in the market

Svolt was formerly the power battery division of Great Wall Motor (HKEX: 2333) and went independent in February 2018. It now spans battery materials, cells, packs and energy storage.

The volume numbers explain why it's investing in premium chemistry. Global EV battery installations reached 22.0 GWh in the first eight months of this year, up 39.3 percent year-on-year, according to South Korean researcher SNE Research. That ranks Svolt ninth globally, with a 2.6 percent market share.

In China, the picture is similar but with a sharper detail: CABIA, the China Automotive Battery Innovation Alliance, put Svolt tenth in September power battery installations with a 1.97 percent share. In the ternary segment specifically — the chemistry Yang is targeting — it ranks fourth, with a 6.31 percent share.

A ninth-ranked cell maker moving first on semi-solid mass production is a reasonable way to climb. Semi-solid packs offer the safety and density story of solid-state without the manufacturing risk.

What to watch next

The open questions are the ones Svolt left unanswered: which vehicles get the pack, how large the first batches run, and whether independent testing backs the 12-minute, 500-km claim.

The company said vehicle details are coming soon. Watch for that reveal, and for the cost-parity question — because if semi-solid really matches liquid-electrolyte pricing at scale, 2026 stops being a prediction and starts being a schedule.