1. Poor conductivity. This issue is its most critical one. It is a major problem that Lithium iron phosphate has not been widely used so late. However, this problem can already be perfectly solved by adding C or other conductive agents. The laboratory reports that the specific capacity can reach over 160mAh/g. Conductive agent has been added to the Lithium iron phosphate material produced by our company during the production process, which does not need to be added when making batteries. Actually, the material should be: LiFePO4/C, such a composite material.

　　2. The compaction density is low. Generally, it can only reach 1.3-1.5g/ml, and low tap density can be said to be the biggest disadvantage of Lithium iron phosphate. This disadvantage determines that it has no advantage in small batteries such as mobile phone batteries. Even though it has low cost, good safety performance, stability, and high cycle times, if its volume is too large, it can only replace lithium cobalt in a small amount. This disadvantage will not be prominent in terms of power batteries. Therefore, Lithium iron phosphate is mainly used to make power batteries.

　　Countries have placed the battery industry at an important position in their national development strategies, with significant support from supporting funds and various policies. Lithium ion power batteries for electric vehicles have become a hot topic in the market and research and development. The main cathode materials studied include lithium manganate (LMO), Lithium iron phosphate (LFP), nickel cobalt manganese (NCM).

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