The new national standard for the lithium battery industry was officially implemented today, with nine thresholds set for 80% of brands or affected

The new national standards for the lithium battery industry, namely "Lithium-ion Battery Industry Specification Conditions (2018 Version)" and "Interim Measures for the Administration of Lithium-ion Battery Industry Specification Announcements (2018 Version)" were officially implemented today!

Carefully study the new national standard for lithium batteries. The government will strictly control the new lithium-ion battery (including supporting) projects that simply expand production capacity and have low technical level. At the same time, they must have production qualifications, and the technology, equipment and related supporting facilities must also meet the following requirements:

1. It should have the ability to detect magnetic foreign bodies and metal impurities such as zinc and copper in the positive and negative electrode materials of the battery, and the detection accuracy should not be lower than 10ppb.

2. It should have the ability to monitor the uniformity of the electrode after coating. The measurement accuracy of electrode coating thickness and length should not be lower than 2μm and 1mm, respectively. The use of on-line monitoring equipment for coating surface density is encouraged.

3. It should have the ability to monitor the burr after the electrode is sheared, and the measurement accuracy should not be lower than 1μm.

4. It should have electrode drying technology, and the control accuracy of water content should not be less than 10ppm.

5. It should have the automatic production capacity of electrode winding or lamination, and the control accuracy of electrode alignment should not be lower than 0.1mm.

6. It should have the ability to control environmental conditions such as temperature, humidity and cleanliness during the injection process.

7. It should have on-line detection capability of internal short-circuit high-voltage test (HI-POT) after battery assembly.

8. For a battery pack composed of multiple single cells or modules in series and parallel, it should have the ability to evaluate the consistency of single cell open circuit voltage, internal resistance, etc., and the measurement accuracy should not be lower than 1mV and 1mΩ, respectively.

9. It should have the capability of online detection of the function of the battery pack protection board.

Due to the implementation of the new national standard, the popularization of lithium batteries has been accelerated, but at present, except for some enterprises, most lithium battery factories are fighting for economies of scale. Everyone knows that the manufacturing of lithium batteries and lead-acid batteries is completely different: lithium batteries (from cathode materials to cells, to PACK) must have more capital and technology investment, which is completely technology, research and development, capital and management. intensive industry.

It is understood that the current domestic production of cathode materials to batteries, and then PACK industry chain production enterprises, only account for about 20% of the entire lithium battery manufacturing enterprises, which also means that 80% of the brands in the lithium battery after the new national standard, it is possible be significantly affected.