Why is Mn3O4 chosen as the manganese source for LMFP?

The specific process route for LMFP is still being explored, and there is considerable variation among companies without a unified standard. Therefore, the manganese sources used also vary, including tetramanganese, manganese carbonate, manganese sulphate, dimanganese, manganese nitrate, and manganese oxalate, all of which are employed by various companies. However, research has found that tetramanganese is gradually becoming the mainstream trend, including leading shippers such as Hangen Nano and Ronbay Technology, who also adopt this route.
One important reason is that tetramanganese is cheaper and offers significant economic benefits; secondly, tetramanganese material is also more suitable for the second firing process; thirdly, LMFP with tetramanganese material combined with iron oxide as raw material can achieve a capacity of 140-155 mAh/g; fourthly, the cycle performance is also better than using dimanganese or manganese carbonate for LMFP; fifthly, using iron-doped tetramanganese as raw material can enhance the compaction performance of LMFP.