Company: LI
Filing Date: 2025-04-10
Form Type: 20-F
Source: 0001410578-25-000678
Chunk: 125

Company: Li Auto Inc.
Filing Date: 2025-04-10
Form: 20-F
Item: Item 4
Chunk 125
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 the passenger sides under C-IASI’s latest assessment protocols.
Technology
EREV Powertrain
We are the pioneer in developing EREV technologies and applied them to our EREV models starting from Li ONE, followed by the Li L Series. An EREV is purely driven by its electric motor, but its energy source and power come from both its battery pack and range extension system. EREVs can replenish energy by slow charging, fast charging, and refueling, thus eliminating range anxiety for users. EREVs offer high-quality driving experience similar to that of BEVs, such as smooth acceleration and superior NVH performance. The overall energy consumption level of our EREV models is much lower than that of ICE vehicles in a similar class, as a result of its high energy efficiency range extension system. We believe that our EREV technologies will help accelerate the adoption of electric vehicles in China and contribute to China’s national initiatives to build a low-carbon-emission society. For consumers, we believe that our vehicles have a competitive advantage over ICE vehicles in terms of performance, cost efficiency, and user experience.
Our EREV powertrain primarily consists of an electric propulsion system and a range extender. Our 1.5T range extender features a low-acoustic-sensitivity frame-type cylinder block and high stiffness crankshaft, suppressing noise from the source. Base on a combustion system design with a high tumble channel and a circular-arc piston head, our range extender burns the kinetic energy quickly and maintains a high thermal efficiency range of 40.5%, offering quieter driving experience and consuming less energy. The range extension system has been enhanced through OTA upgrades to support a longer-range during winter. Our EREV powertrain is able to optimize the power balance between fuel and electric leveraging data on upcoming road conditions, vehicle energy consumption, and power output. This holistic approach minimizes the operation of the range extender in low-efficiency zones, thereby reducing overall fuel consumption and enhancing the NVH performance.
HPC BEV Technologies
As a pioneer in HPC BEV technologies, we develop them to deliver superior charging experience to achieve a driving range of 500 kilometers with just a 12-minute charge, offering energy replenishment as efficient as ICE vehicles refueling. Our BEV technologies boast 5C battery cells that support supercharging technology, highly integrated lightweight design, high collision safety design, and efficient thermal management design. In addition, the high-voltage platform is designed utilizing a high power density electric drive system, leveraging electronic components based on third-generation