Lithium battery industry regulations are very strict

In order to strengthen the management of the lithium-ion battery industry, improve the level of development of the industry, guide industrial transformation and upgrading, and promote the sustainable and healthy development of the lithium-ion battery industry, the Code issued a "tight spell" to enterprises at the scale and technological level. According to the requirements, Companies need to meet at least 14 requirements.

In terms of size requirements, lithium-ion battery companies must meet at least six conditions. The six items are: The annual battery capacity is not less than 100 million Watts; The annual production capacity of cathode materials is not less than 2,000 tons; Negative material has an annual production capacity of not less than 2,000 tons; The annual production capacity of the diaphragm is not less than 20 million square meters; The annual production capacity of electrolytes is not less than 2,000 tons, and the electrolyte production capacity is not less than 500 tons; The actual output of the company in the previous year was not less than 50 % of the actual production capacity.

On the other hand, the requirements for production processes, equipment and related supporting facilities are more stringent. The "Norms" clearly put forward eight major requirements in this regard, namely:

1. It shall have the ability to detect harmful metal impurities such as iron, zinc, and copper in the positive and negative electrode materials of the battery. The accuracy of the detection shall not be less than 1 ppm.

2. There should be a means of measuring the thickness and length of the coating. The measurement accuracy of the coating thickness is 2 μm, and the measurement accuracy of the coating length is not less than 1 mm.

3. It shall have the ability to detect the burr sampling produced by the cutting of the battery electrode with an accuracy of 1 μm.

4. It should have the ability to sample the water content after the battery electrode is dried, and the detection accuracy is 10 ppm.

5. It shall have the ability to detect the alignment sampling after the battery electrode is coiled / laminated, with a detection accuracy of 0.1 mm.

6. It should have the ability to detect the internal short circuit online after the battery is assembled(such as using the hi-pot test).

7. For the component cells of multi-core batteries, open circuit voltage and internal resistance on-line detection capabilities should be available. The detection accuracy is 1 MV and 1 mω, respectively.

8. There should be a protective panel function online detection.

In addition, the enterprise must also meet a number of basic conditions. That is, the enterprise must be registered and established according to law in China and have independent legal personality; Have independent production, sales and service capability of lithium-ion battery related products; Qualified as a high-tech enterprise or independent R&D institution or technology center at or above the provincial level; The main product has a technical invention.

The "Code" will bring a larger industry reshuffle to the lithium battery industry. Some media comments pointed out that leading companies in the industry will benefit from this and will further standardize the production standards of lithium batteries. Analysts at Northeastern Securities (000686, shares) said demand for new energy vehicles, which are expected to exceed 13 million kWh in 2015, was growing rapidly, according to China Securities Network.

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