When DeepSeek unveiled its V4 model, it ended with a line from ancient Chinese thinker Xunzi: ignore applause and criticism, and focus on doing things the right way. In today's AI context, the message reads less like philosophy and more like positioning.

For more than a decade, lithium-ion batteries have defined the global power battery market, concentrating technology, capital and supply chains along a single trajectory. That model is now under pressure. Sharp swings in lithium carbonate prices have exposed structural vulnerabilities, forcing the industry to confront a long-ignored question: what happens when the core input cost is no longer predictable?