[SMM Analysis] Xiaomi Pengcheng Launches Large-Battery SUVs, Reshaping Ternary Battery Demand

On the evening of July 30, Xiaomi Auto held its second technology conference, officially unveiling the new "Kunlun Technology Architecture" and introducing two extended-range SUVs from the Pengcheng series—the flagship seven-seat N90 Max (presale price 299,900 yuan) and the five-seat N70 Max (presale price 259,900 yuan). This marks Xiaomi Auto's formal entry into the extended-range segment, forming a dual-line product landscape alongside the pure electric SU7/YU7 series. Both new models are set to be officially launched and delivered in September, with the entry-level N70 expected to reach the 200,000 yuan price range.

Based on the information released at the conference, the Pengcheng series demonstrates a clear "large-battery extended-range" approach in battery configuration. The N70 Max offers a CLTC pure electric driving range of up to 505 km, while the N90 Max delivers a combined range of 1,705 km. Its 76 kWh battery capacity places it in the top tier among extended-range models. Lei Jun emphasized at the conference that 70% of Xiaomi car owners drive no more than 400 km per week, meaning that the 505 km pure electric range allows most users to treat the vehicle as a full EV in daily use, with the range extender intervening only during long-distance trips. In terms of power, both models are equipped with a 1.5T four-cylinder range extender paired with dual-motor all-wheel drive. The N90 Max accelerates from 0 to 100 km/h in 5.9 seconds, while the N70 Max takes just 5.5 seconds. WLTC fuel consumption under battery depletion is 6.26 L/100 km and 6.1 L/100 km, respectively, balancing performance and efficiency. This product definition aligns closely with the "large-battery" trend in the 2026 extended-range market—60 kWh-plus has become standard for mid-to-high-end extended-range vehicles, and some models have already exceeded 80 kWh. The large-battery strategy directly boosts demand for ternary lithium batteries in the extended-range segment, creating new shipment growth opportunities for battery suppliers.

Additionally, the "Dragon Armor Battery" system Xiaomi simultaneously introduced warrants continued attention. Defined in-house by Xiaomi, with leading design and development and full-process quality control, the system requires a battery cell cycle life of 2,000 cycles, and its bottom anti-scratch design can withstand an impact energy of 500 J. It also requires no fire or explosion under 55°C full-charge thermal runaway conditions. Combined with the armored cage-style auto body (2,200 MPa ultra-high-strength steel) and an emergency flotation function, Xiaomi offers a solution that exceeds competitors in the safety dimension. Although the Dragon Armor Battery currently still relies on externally purchased battery cells, Xiaomi's deep involvement in battery pack design and quality control reflects an industry trend of automakers gaining greater influence in the battery segment. The potential impact on the battery supply chain landscape is worth monitoring. Overall, the launch of Xiaomi Pengcheng not only represents an improvement in Xiaomi’s product lineup but also reflects the accelerated arrival of the "large battery" trend in the extended-range vehicle segment. As official deliveries ramp up in September, the boost effect of large-battery EREV models on ternary batteries will gradually materialize, and the shipment performance of the relevant supply chain will become an important tracking indicator for the lithium battery industry chain.