10元每升的「致命」冷却液，让理想痛失20亿

Core Viewpoint - The article discusses the recall of 11,411 units of the Li Auto MEGA electric vehicle due to a fire incident caused by insufficient corrosion resistance of the coolant, leading to potential battery thermal runaway and significant financial implications for the company [4][5][6][7]. Group 1: Incident Overview - A fire incident involving a Li Auto MEGA occurred in Shanghai, raising consumer concerns about the safety of electric vehicles [4][5]. - The company announced a recall for vehicles produced between February 18, 2024, and December 27, 2024, to replace the coolant and affected components [6][7]. - The estimated cost of the recall is projected to reach approximately 2 billion yuan [7]. Group 2: Technical Analysis - The coolant used in the 2024 MEGA is a low-conductivity type, which was intended to meet insulation design requirements but has shown inadequate corrosion resistance compared to traditional coolants [7][13][14]. - The article highlights that the corrosion of the coolant system components, particularly the aluminum cooling plates, occurred within just over a year of the vehicle's launch, which is unusual for the industry [19][26]. - The transition to low-conductivity coolant is part of a broader trend in the industry, but it has raised concerns about the verification processes for coolant materials and their compatibility with vehicle components [21][22][23]. Group 3: Industry Implications - The incident has prompted other manufacturers using the same battery technology, such as Xiaomi, to conduct urgent reviews of their coolant systems [33]. - The article emphasizes the need for improved testing and validation processes for coolant materials, as the current practices may overlook critical compatibility issues [22][24]. - The recall and its implications serve as a reminder of the importance of safety and quality assurance in the rapidly evolving electric vehicle market [38].