On January 3, 2026, a research report on lithium iron phosphate (LiFePO₄) released in Hunan showed that as a core cathode material for lithium batteries, it has significant advantages such as high safety, long cycle life and low cost, but problems such as low energy density and poor low-temperature performance need to be solved urgently.
    The report pointed out that in the current raw materials for lithium iron phosphate preparation, iron sources tend to the resource utilization of industrial by-products, phosphate iron process is the main phosphate source but needs to deal with ammonia nitrogen pollution, lithium carbonate is commonly used as lithium source, and the dual carbon source strategy is emerging for carbon sources. In terms of preparation technology, the high-temperature solid-state method is the industrial mainstream, the carbothermal reduction method has industrial feasibility, and the microwave heating method and hydrothermal synthesis method are suitable for laboratory research.
    In terms of performance improvement, modification methods such as nanosization, carbon coating and ion doping have achieved obvious results. At the same time, the industry has clarified four optimization directions: process optimization, raw material system upgrading, composite modification and industrialization transformation. It is expected to further increase its application proportion in the field of power batteries in the future.

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