As we all know, the biggest difference between new energy vehicles and ordinary fuel vehicles is the energy source. Regular fuel vehicles rely on internal combustion engines to operate mechanically, while new energy vehicles rely on electric motors from automobiles. run on electrical energy.
The battery includes positive and negative electrodes and separators, as well as an electrolyte, a top cover and a case. The positive electrode generally uses lithium alloy metal oxide, and the negative electrode material generally uses graphite. The main changes in demand are for raw materials such as lithium and cobalt, as well as electrolytes and separators, aluminum foils for positive electrodes and copper foils for negative electrodes, battery shells,etc.
The smallest unit of a new energy vehicle battery is a node, called a row, and a row is divided into groups. Taking the Tesla battery panel as an example, there are a total of sixteen groups. Of batteries, each battery group covers 444 cells, a total of 7104 18650 lithium batteries. A Tesla car is sold, and 7104 batteries are sold. Each battery requires a case and a top and bottom cover.
Structural parts are divided into three types according to their functions: structural parts, connecting parts and functional parts. The structural parts include battery outer cases, cell boxes and covers, etc., ensuring the structural integrity and mechanical strength of the automobile battery pack. Connectors include wire harnesses, flexible connections, etc., ensuring the output and functions of themain circuit. of the automotive battery system. The parts include insulation sheets and sealing rings, as well as air ducts and cooling pipes, etc. to provide internal battery insulation, battery pack sealing and thermal management.
In recent years, due to technological progress, the energy density of batteries has increased, the prices of upstream raw materials have declined, and the prices of automobile batteries have generally declined. Therefore, the gross profit margin of terminal companies has generally been. in decline. Today, the gross profit margin of the automotive battery industry is 25-30%.
Structural parts account for 7% of the cost of automobile batteries, which is equivalent to the negative electrode, separator and electrolyte of the battery. The cathode material accounts for about 30% of the cost.
The unit value of pstructural parts is about 0.4 to 0.5 billion/GWh, and the GWh is one hundred million watt hours.
The current situation in the field of lithium battery structural parts is relatively stable, judging from the prospectuses of Kodali and CATL, the business of Kodali and CATL exceeded 700 million yuan in 2017, and their activity in 2018 exceeded 700 million. One billion yuan.
As long as the sales of new energy vehicles increase, the income of new energy vehicle companies will inevitably increase. Car sales will have a positive return on production capacity and a positive return on gross profit margin. The main factor affecting companies' bottom line is base metal prices.
As long as you don't worry about the field of new energy vehicles, there is no need to worry about the corresponding power battery fieldto new energy vehicles. As long as you don't worry about the domain. automotive power batteries, there is no need to worry about the field of power battery structural parts. The most notable company in the field of power battery structural parts is Kodali.