New energy vehicles, safety or performance, which is more important? I believe most people would say: both are important! But due to the power battery, it is not easy to have both. Currently, the mainstream power batteries for new energy vehicles on the market are lithium iron ph

New energy vehicles, safety or performance, which is more important?

I believe most people will say: both are important!

But due to the power battery, it is not easy to have both. Currently, the mainstream power batteries for new energy vehicles on the market are lithium iron phosphate batteries and ternary lithium batteries. There are big differences between the two in terms of security and performance.

Generally speaking, lithium iron phosphate battery is safer, but its performance is worse than that of ternary lithium battery, in terms of energy density and cruising range. So is there a power battery that is safe, has energy density and cruising range comparable to ternary lithium batteries?

The answer is: indeed! That is - lithium manganese iron phosphate battery !

What is lithium iron manganese phosphate battery?

lithium manganese iron phosphate battery is not a new technology, but is actually an upgraded version of lithium iron phosphate battery.

Lithium manganese iron phosphate battery has the same structure as lithium iron phosphate battery, so it is comparable to lithium iron phosphate battery in terms of safety and stability, but it has better energy density than lithium iron phosphate battery, and even has better cruising range. Comparable to ternary lithium batteries of the same level.

According to researchers’ calculations, the energy density of lithium iron manganese phosphate batteries is 10-20% higher than that of lithium iron phosphate batteries, which is close to that of ordinary ternary 5-series batteries.

Since the lithium iron manganese phosphate battery is an upgraded version of the lithium iron phosphate battery, the materials and equipment have not changed much, except that manganese, which is cheaper and more abundant, is used. Therefore, the cost is only 5-6% higher than that of lithium iron phosphate batteries.

However, lithium iron manganese phosphate batteries also have a major drawback. Due to the addition of manganese element, the number of battery cell cycles is reduced. Therefore, it is not suitable for use in energy storage fields that require higher cycle life.

At present, the energy density of lithium iron phosphate batteries is close to the "ceiling". With its high performance, low cost and high safety characteristics, lithium iron manganese phosphate batteries may gradually replace lithium iron phosphate batteries.

CATL will be mass-produced. Will these 5 companies explode?

Recently, according to media reports, the "lithium iron manganese phosphate batteries" of CATL, Xinwangda and Yiwei Lithium Energy have passed the battery pilot stage and are sending samples to car companies for testing. CATL may mass-produce lithium iron manganese phosphate batteries in the second half of the year.

Once "lithium manganese iron phosphate batteries" achieve mass production, the biggest difference from "lithium iron phosphate batteries" is the increased demand for "manganese element".

At present, there are mainly the following five core domestic "manganese metal" enterprises:

1, Qingdao Zhongcheng

Power grid energy saving and environmental protection optimization solution provider, which has achieved a number of major achievements in the fields of power quality optimization and power grid energy saving and environmental protection, reaching international standards. advanced level. At the same time, it is also the largest manganese resource enterprise in China. At present, it holds about 476 hectares of manganese ore , the current exploration area is 103.47 hectares, and the reserves are about 340,000 tons.

2, Xiangtan Electrochemical

Xiangtan Electrochemical is a well-known electrolytic manganese dioxide manufacturer in China. It is known as the cradle of China's electrolytic manganese dioxide , with an annual production capacity of 122,000 tons of electrolytic manganese dioxide. The company is vigorously developing manganese-based new energy battery materials such as lithium manganese oxide , manganese tetroxide and other manganese-based new energy battery materials. It is the core supplier of battery manufacturers such as CATL and BYD.

3, Red Star Development

Red Star Development is known as the "World Barium King and Asia's Strontium King" and specializes in barium salt , strontium salt and manganese series products. Among them, manganese products are mainly primary batteries and EMD for lithium batteries, high-purity manganese sulfate , etc. Electrolytic manganese dioxide and high-purity manganese sulfate are mainly used as cathode materials for lithium-ion batteries .

4, Jiangsu Sainty

Jiangsu Sainty is an important trading platform under Jiangsu Guoxin Group . It is mainly engaged in import and export trade, domestic trade, clothing production and many other fields, and has formed energy, finance, real estate, trade, social undertakings and other five major business sectors. At present, the company has a large amount of lithium ore resources and maintains manganese ore reserves of approximately 3 million tons.

5, Three Gorges Water Conservancy

Chongqing's first listed electric power company, mainly engaged in electricity distribution and sales, comprehensive energy, new energy, etc. The company's own hydropower installed capacity is 750,000 kilowatts, and the regulated power supply installed capacity is 2.13 million kilowatts. In addition, the company has a complete industrial chain of manganese ore mining, electrolytic manganese production, processing and sales. The designed production capacity of Xiayu Lijiawan manganese mine is 600,000 tons/year.

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