LR6 battery.Interpretation of the advantages and technical principles of iron batteries

　　High-speed iron batteries are based on the synthesis of stable ferrates (K2FeO4, BaFeO4, etc.), which can be used as the cathode material of high-speed iron batteries to produce new chemical batteries with high energy density, small size, light weight, long life, and no pollution.

　　Advantages of iron batteries:

　　High energy and high capacity. Currently, the specific power of civilian batteries on the market is only 60-135w/kg, while high-speed rail batteries can reach more than 1000w/kg, and the discharge current is 3-10 times that of ordinary batteries. Especially suitable for occasions requiring high power and current. High-speed rail batteries are cost-effective. Alkaline manganese batteries cannot meet the current needs of digital cameras, video cameras and other electronic products that require high current and large capacity. Lithium-ion batteries are not very competitive in this regard due to cost.

　　The discharge curve of high-speed rail batteries is flat. For example, Zn-K2FeO4, more than 70% of the discharge time is between 1.2-1.5V.

　　Rich raw materials. The most abundant elements in the earth's crust are aluminum and iron. The content of iron in the earth's crust is 4.75% and the content of manganese is 0.088%. At the same time, each mol+6-valent iron can produce 3 mol electrons, while each mol+4-valent manganese can only produce 1 mol electrons. The amount of iron used is only 1/3 of manganese when it is very abundant, which greatly saves social resources. Reduces the cost of raw materials. MnO2 on the market is about 9,000 yuan/ton, and Fe(NO3)3 is about 7,500 yuan/ton.

　　Green and pollution-free. The product after ferrate discharge is FeOOH or Fe2O3-H2O, which is non-toxic, pollution-free and environmentally friendly. No recycling required.

　　Introduction to high-speed rail battery technology principles

　　At present, countries all over the world are taking different measures to develop new energy sources for automobiles and further reduce the pollution caused by automobile exhaust gas to the environment. Some new energy sources are constantly being used in modern automobiles, such as natural gas, hydrogen energy, electric energy, fuel Batteries, etc., and fuel cells are a research direction that various automobile manufacturers and scientific research institutions are focusing on.

　　Among the current fuel cell technologies, there is a new battery technology - iron battery technology.

　　Currently, there are two types of iron batteries being studied at home and abroad: high-speed iron batteries and lithium-iron batteries. High-speed iron battery is a new chemical battery made of synthetic stable ferrate (K2FeO4, BaFeO4, etc.) as the cathode material of high-speed iron battery. It has the characteristics of high energy density, small size, light weight, long life, and no pollution; The other is lithium iron battery, mainly iron phosphate battery, with an open circuit voltage of 1.78V-1.83V and a working voltage of 1.2V-1.5V, which is 0.2-0.4V higher than other primary batteries, and the discharge is stable, pollution-free and safe. , excellent performance.

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