Hunan Yuneng New Energy Battery Materials Co., Ltd. announced an invention patent on January 3, 2025, involving a high-conductivity LMFP precursor, LMFP, and its preparation method. The publication number of the patent is CN119240650A, and the application date is November 22, 2024. The inventors include Tao Chen, Zhilin Long, Fenglei Yu, Jiangtao Cheng, Tao Lin, and Ningxin Zhao.
This technology has significant applications in the field of lithium-ion battery materials. The preparation method involves adding manganese source, iron source, and phosphorus source into a nitric acid solution, followed by the addition of nano-silicon dioxide, and conducting a constant-temperature hydrothermal reaction to obtain an intermediate. Subsequently, the intermediate is soaked in an HF solution to finally obtain the LMFP precursor. The precursor is combined with glucose-carbonized carbon nanotubes and a lithium source through a wet ball milling and calcination process. The resulting LMFP exhibits excellent specific capacity and C-rate performance, along with high conductivity.
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