At the IAA Transportation show in Hannover, BYD unveiled the ETT 44, a heavy‑duty electric tractor that could reshape Europe’s long‑haul market. The truck is equipped with a 651 kWh lithium‑iron‑phosphate (LFP) battery pack delivering a claimed 600 km (≈ 372 mi) range under a typical European load profile. What sets the ETT 44 apart is BYD’s “Flash Charging” system, capable of delivering up to 1.5 MW of power – enough to add roughly 300 km of range in just five minutes, according to BYD’s test data.

The powertrain uses BYD’s in‑house silicon‑carbon anode technology, which raises the specific energy of the LFP cells to about 180 Wh kg⁻¹, a notable jump from the 150 Wh kg⁻¹ baseline of earlier models. The pack is modular, comprising 12‑cell modules that can be swapped in the field, a feature BYD says will cut downtime to under 30 minutes for a full‑pack exchange.

Industry analysts view the ETT 44 as a direct challenge to Tesla’s Semi and Daimler’s eActros. Its megawatt‑level charging aligns with emerging European standards for ultra‑fast charging infrastructure, and BYD has already signed memoranda of understanding with several logistics firms to pilot the truck in Germany and the Netherlands later this year.

If the performance claims hold up in real‑world operation, the ETT 44 could accelerate the shift from diesel to electric in the heavy‑truck segment, especially for routes where charging windows are tight. The combination of a massive LFP pack, high‑power charging, and a modular design also demonstrates how Chinese manufacturers are leveraging scale to address the specific pain points of commercial fleets.

Electrek • InsideEVs

China’s battery giant CATL announced the Tectrans II system on 15 September, a commercial‑vehicle battery platform designed to push electric truck range beyond the 800 km barrier that has limited adoption on long‑haul routes. The company says the new pack can deliver up to 1,000 km (≈ 620 mi) on a single charge for a 40‑tonne tractor‑unit, thanks to a 300 kWh capacity and an energy density of 260 Wh kg⁻¹ achieved with its latest NCM 811 chemistry.

Tectrans II incorporates a dual‑temperature management system that keeps the cells within an optimal 15‑30 °C window, even under high‑power discharge, reducing degradation and extending cycle life to over 2,000 full cycles. The pack architecture is “stack‑and‑module” – each module houses 96 cells in a 12 × 8 layout, and up to 12 modules can be stacked to reach the target capacity. CATL also introduced a fast‑charging protocol that supports 800 kW DC input, allowing a 0‑80 % charge in roughly 30 minutes.

The launch is timed with several Chinese logistics firms that have pledged to convert 5,000 trucks to electric by 2027, and CATL has already secured supply contracts with two European OEMs seeking to meet stricter CO₂ regulations. Analysts note that the Tectrans II’s claimed range hinges on a relatively low payload and ideal driving conditions; however, the announced specifications represent a clear step forward in high‑energy‑density pack design for heavy vehicles.

CATL’s move also underscores a broader industry trend: battery makers are now targeting the long‑haul segment with chemistry upgrades and thermal‑management innovations, rather than focusing solely on passenger‑car ranges.

CnEVPost

A modest‑sized sodium‑ion battery pack made its debut on Chinese roads this week, marking the first time the technology has been used in a moving vehicle rather than as a stationary storage solution. The “small battery” – a 30 kWh pack built by a joint venture between a domestic battery maker and the research institute of the Chinese Academy of Sciences – powers a city‑bus prototype operated by a municipal transit agency in Shenzhen.

The pack uses a Na₃V₂(PO₄)₂F₃ cathode and a hard‑carbon anode, delivering an energy density of roughly 150 Wh kg⁻¹, which is lower than contemporary lithium‑ion cells but sufficient for short‑range urban routes. Its standout advantage is cost: raw sodium is abundant and cheap, and the cell chemistry eliminates the need for cobalt, bringing the projected material cost down to about $70 kWh⁻¹, roughly 30 % less than current lithium‑ion prices.

Performance testing showed the bus could travel 120 km on a single charge, with a full charge time of 2 hours using a 100 kW charger. The battery’s thermal stability was highlighted as a safety benefit; sodium‑ion cells are less prone to thermal runaway, a factor that could simplify fire‑safety requirements for public‑transport fleets.

While the energy density gap remains a barrier for long‑haul applications, the successful road test demonstrates that sodium‑ion chemistry is maturing enough for niche roles where cost and safety outweigh range. Industry observers expect a cascade of pilot projects in China’s dense urban corridors over the next 12‑months, and the technology could eventually find a foothold in low‑speed delivery vans and off‑grid storage.

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Quick News

• August 2026 Chinese battery production hits 215 GWh, storage installations rise 38 % YoY – According to the China Battery Industry Association, total battery cell output reached 215 GWh in August, a 12 % increase from July and 27 % YoY. Energy‑storage installations grew to 18 GWh, up 38 % year‑on‑year, driven by utility‑scale projects in the north‑east.
• Li Auto announces i9 Home storage system with self‑developed 12 kWh battery, deliveries slated for October – Li Auto revealed its i9 Home, a residential energy‑storage unit featuring a proprietary lithium‑iron‑phosphate pack rated at 12 kWh (3 kW continuous output). The company plans to begin deliveries in early October, positioning the product against Tesla Powerwall and BYD’s B‑Box in the Chinese market.