CATL, the world's largest battery maker, and SVOLT, also known as Honeycomb Energy, are putting solid liquid hybrid cells into high end Chinese SUVs in 2026 to fix the kind of battery fire that destroyed sales of the Li Auto MEGA, a Chinese
When a Li MEGA pack caught fire in a 10-second thermal-runaway incident earlier this year, the incident did not only sink that model's sales — it forced Chinese premium EV makers to confront an urgent engineering question: how do you charge faster without the pack igniting? The industry's converging answer in 2026 is a battery category that has attracted little public attention: the semi-solid cell, a hybrid between today's liquid lithium-ion pack and the full solid-state battery that still sits in the lab.
Industry reporting confirms deployment signals are now concrete. CATL, the world's largest battery maker, unveiled its Qilin Condensed Battery at its April 2026 Super Tech Day, claiming 350 watt-hours of energy per kilogram of battery weight and 760 watt-hours per liter of battery volume, with a pack weight under 650 kg. The company says the same cell can deliver 1,500 km of range in an executive sedan and over 1,000 km in a full-size six-seat SUV. The same announcement was corroborated by CarNewsChina, which noted the cell is already flying in CATL-invested AutoFlight electric air taxis (eVTOLs) and is now being pitched to premium passenger SUVs, including evaluations at Zeekr per 36Kr industry sourcing. SVOLT, also known as Honeycomb Energy, said in May 2026 that it will begin mass-producing a hybrid solid-liquid pack in September 2026, targeting roughly 30,000 to 40,000 units on Great Wall vehicles this year at 245 Wh/kg and a 6C peak charge rate. SVOLT is also preparing near-term production of a related solid-liquid pack for Chery models.
The cell chemistry is what makes this more than a marketing upgrade. A standard lithium-ion pack uses a flammable liquid electrolyte, which is why a fast-charging car like the Li MEGA can fail so violently. A semi-solid cell replaces most of that liquid with a gel that solidifies in place during manufacturing, a CATL-marketed approach the company calls "condensed-matter electrolyte" and that the trade press sometimes calls "in-situ gel." The promise is no leak, no burn. The cost is a hard ceiling on charging speed, where the C-rate (full-pack-capacity turns per hour) drops to roughly 2C for the condensed route, according to 36Kr's industry sources, about half what a 5C liquid-ternary pack can accept. The number is a real trade-off, not a marketing footnote. SVOLT and Sunwoda both reportedly tried the condensed route and walked away citing yield and consistency issues, according to 36Kr's industry sources.
There is not just one semi-solid technology. Three routes are competing. CATL's condensed electrolyte path gels the liquid inside the cell. QingTao's approach, called cathode-coating solid electrolyte, applies a thin solid layer to the cathode and keeps a liquid anode side. SVOLT's third route, thermal-composite transfer printing, prints composite layers onto the electrodes. The three are not interchangeable. CATL's chemistry has the strongest safety story and the weakest charging rate. QingTao and SVOLT's variants aim to keep the C-rate higher, with SVOLT claiming a 6C peak on a less energy-dense cell. Which of the three becomes the default high-end chemistry will be settled by 2026 production data, not by lab slides.
The deeper bet is about the buyer. CATL's CTO Gao Huan said in April 2026 that any EV priced above 250,000 RMB running LFP chemistry is effectively a downgrade, arguing that the cheaper lithium-iron-phosphate cells used in mass-market EVs cannot match the energy density that premium buyers expect. Ternary cathodes, the nickel-cobalt-manganese blends that pack more energy per kilogram, remain Gao's recommended solution for long-range premium models. The implicit corollary is that a wealthy buyer of a 400,000 RMB six-seat SUV is buying range and presence, not personally plugging in at a 480 kW stall. That assumption gets tested this year. The new launches are clustered around late May 2026: the Wenjie M9, Huawei's flagship SUV, with its 120 kWh Whale pack and a 750 km CLTC range figure (36Kr); the NIO ES9 with a 102 kWh pack and a 3-minute battery swap; and the Zeekr 009 starting at 43.98万元 (about $61,000) with a 900V architecture and 6C charging. The Li Auto i9 is expected in the second half of 2026. None of these figures is independently range-tested; the 750 km Wenjie number and the 102 kWh NIO figure come from OEM marketing copy, not from third-party verification, and both are quoted under China's CLTC (China Light-Duty Vehicle Test Cycle), which is more generous than Europe's WLTP standard.
The watch item is whether any of the new launches pair a semi-solid pack with a 4C or higher charging claim. CATL's Qilin Condensed spec sheet does not commit to a charging number, and the company has so far led with energy density and safety messaging. SVOLT's 6C claim is the most aggressive in the field, but it is paired with a mid-nickel ternary cathode and a 245 Wh/kg cell, well below CATL's 350 Wh/kg. Industry observers will be watching for the first thermal-runaway test, the first real-world 2C versus 5C customer comparison, and the first published cost-parity data for a semi-solid line running at 30,000 units a year — all expected to arrive with the 2026 production ramp, not before.