Amid the booming development of new energy vehicles and energy storage industries, lithium iron phosphate (LiFePO₄) has become the mainstream cathode material due to its high safety, long cycle life and cost advantages. Its preparation processes are mainly divided into solid-phase method and liquid-phase method. The solid-phase method, accounting for over 70% of global output, is the main industrialized process with mature technology and easily available raw materials. The liquid-phase method, leveraging molecular-level mixing advantages, has emerged in the high-end market, with enterprises like Defang Nano realizing mass production.
    The industry is promoting performance upgrading through technological breakthroughs such as high compaction density improvement, nanosization and morphology control, with compaction density reaching 2.6-2.7g/cm³. Meanwhile, enterprises achieve cost reduction and efficiency improvement via waste recycling and process simplification. Currently, the liquid-phase method is gradually seizing the high-end market of long-range vehicles, and Chinese enterprises are accelerating overseas expansion, with Guoxuan High-Tech and CATL expanding their international businesses. Despite the substitution risk from sodium-ion batteries, lithium iron phosphate will continue to play a key role in the lithium battery field through continuous technological innovation.

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