LG Poland plant pressure and battery process -Lithium - Ion Battery Equipment

LG Poland plant pressure and battery process -Lithium - Ion Battery Equipment

In view of the two videos about the LGChem Poland plant released by DilekTHEELEC earlier, this article will focus on the information about the Poland plant revealed in the interview with reporters and Li Xiuhuan, deputy general manager of LGChem, to sort out the plant and the process of the batteries produced by the plant.

It involves the layout of product lines, yield and production planning. In fact, in the fourth quarter conference call, LG stated that it will continue to increase the proportion of production line automation, having invested 3 trillion won in 2019, and will continue to invest 3 trillion won this year.(Lithium - Ion Battery Equipment)

LG's current global power lithium battery soft-pack power lithium battery factories mainly include South Korea's Ochang, my country's Nanjing, Poland's Wroclaw, and the United States' Michigan factory. The Polish factory was laid at the end of 2016. There are currently two factories with a total of 7 production lines (3 production lines in factory 1 and 4 production lines in factory 2)

The first factory (Lee Soo-hwan thinks it's a bit difficult at the moment)

Line 1 supplies Renault and Jaguar Land Rover 355 batteries

Line 2 supplies 390 cells from Audi, Porsche and Daimler

Line 3 is a universal product, designed as a public product

Line 4 is the MEB product of the Volkswagen Group

Second factory (this line should be better)

Line 5 is Daimler's battery wire

Line 6 is the battery wire of Porsche

Line 7 for PSA Group

The investment in the factory itself was 400 billion won, and the Polish government provided a subsidy. In order to meet the manufacturing requirements, the use of high-speed and wide-width production lines has caused many problems in this production line, especially the problem of manufacturing equipment. In April, engineers from all the equipment suppliers in Korea went to Poland to solve the problem.

The yield rate of the Polish factory is currently around 80%, and the goal for the first quarter of 2020 is to reach 90%, which is quite different from the 98-99% in South Korea. In the interview, it was mentioned that Audi is the company with the most complaints. The factory actually has to prepare for 24 hours. If LG cannot supply batteries, the factory of the car company can only operate for 8 hours, and the products cannot meet the order delivery.

Copper foil thinning process

Copper foils of about 7-15 micrometers (μm) are used in ordinary electric vehicles. The direction of the effort is to use a thinner copper foil of 6 micrometers (μm).

There is a battery research institute in my country, where it is analyzed that the energy density of SKInnovation is higher than that of LGChem using the same NCM622 positive electrode material.

While LG Chem's products have a longer lifespan (when the copper foil gets thinner, it emits heat and heats up quickly), LGChem's ego is a bit of a setback.

Using thinner copper foil means higher energy density and also means solving various process issues in the electrode process of coating and drying copper foil. If the copper foil is thinned, if it breaks during the process of passing through the rolling equipment, it means that all materials should be discarded to 50-80 meters. The temperature during the rolling process reaches 90-150 degrees, and it must wait for cooling (not like The same tape was cut immediately), LG changed the equipment and used a KoreaPENTY equipment to solve the problem.

Summary: The two videos have a total of 22 minutes. Readers can take a moment to listen to them. The compromise between the yield and output of soft-packed cells, even LGChem will take a long time to adjust the production line, and it will take a long time to go in this direction.

The output of batteries is not easy to increase quickly, and the price of batteries is also closely related to the yield. LGChem's previous price increase may have been based on the mature and stable production lines in South Korea to estimate the difference in the yield of European factories. never made money. But if the thinning process is done, it should be smoother later.



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