Geely-Linked Firm Sues Battery Supplier; Industry Calls for Shared Responsibility Framework in EV Era

In December last year, Welion—a company under Geely Holding Group—filed a lawsuit against battery supplier Sunwoda EVB. Shortly afterward, Volvo initiated a global recall of its EX30 models equipped with the relevant battery systems. To date, no authoritative report has confirmed quality issues with the battery cells, and the legal proceedings remain ongoing. Nevertheless, public opinion has already pointed fingers at upstream cell manufacturers. Industry experts note that the safety of traction batteries involves multiple aspects—including cell quality, battery pack design, BMS (Battery Management System) strategies, and thermal management—and attributing blame solely to a single component is neither scientifically sound nor conducive to industry collaboration. This dispute has exposed a misalignment between "bargaining power" and "responsibility boundaries" across the EV supply chain: automakers dominate fault attribution, while battery suppliers bear disproportionate risk—a dynamic that could stifle technological innovation and drive up costs. Experts are calling for the establishment of pre-production collaborative validation mechanisms, lifecycle data sharing, and third-party dispute resolution frameworks. Such measures would help shift the relationship between automakers and suppliers from a simple buyer-seller model toward a technology partnership based on shared risk and mutual benefit, thereby supporting the high-quality global expansion of China’s new energy vehicle industry.