Defective Tungsten Oxide Lithium Battery May Free from Cobalt and Nickel

In order to develop the substitute of lithium battery and get rid of the dependence of cobalt and nickel metal as much as possible, foreign researchers have developed a very promising defective tungsten oxide lithium battery. To some extent, lithium battery can reduce the consumption of expensive metal materials.

As a kind of tungsten oxide, the defect state tungsten oxide has the characteristics of low preparation cost, high theoretical specific capacity, long cycle energy storage life, small volume expansion coefficient, good electrochromic performance and conductivity and thermal conductivity. It is one of the typical and very common n-type semiconductor materials, which is suitable for being one of the components of the new generation of anode materials. Compared with ordinary batteries, lithium batteries with defective tungsten oxide materials have higher cost performance, that is, higher thermal stability, higher energy density and lower production cost.

China's tungsten resource reserves rank first in the world's tungsten reserves. There are more than 20 kinds of tungsten minerals and tungsten bearing minerals, namely wolframite group, scheelite group, wolframite group, uncommon tungsten minerals, etc., but the only ones with the most economic value are wolframite and scheelite. Wolframite accounts for about 30% of the total tungsten resources in the world, and scheelite accounts for about 70%.

The world tungsten resources are mainly concentrated in the Alps Himalayas and the circum Pacific Geological belt. China's tungsten deposits are mainly distributed in the eastern coastal areas of Guangdong Province on both sides of Nanling Mountains in China. The reserves in southern Jiangxi are the largest, accounting for more than half of the world's. The tungsten resources in Russia are mainly concentrated in the middle of sikhote Alin mountains in the north Caucasus, East Siberia and Far East. Tungsten resources in the United States are mainly concentrated in California and Colorado. Tungsten deposits in Canada are mainly concentrated in Selwyn tungsten belt.

In a word, the most irreplaceable advantage of tungsten oxide electrode materials is its wide source and low price, which is expected to make great achievements in the future.

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