China
The Ministry of Industry and Information Technology of China issued a notice that it is revising the lithium-ion battery standards.
The ministry claims that this is in order to promote the transformation and upgrading of the industry and technological progress. The ministry also revokes the “Lithium-ion Battery Industry Specification Conditions (2018 Edition)” and the “Interim Measures for the Administration of Lithium-ion Battery Industry Specification Announcements (2018 Edition)”.
Legally registered and established companies within China must keep to the following conditions. Their R&D expenditures will not be less than 3% of the company’s main business income for the year. Furthermore, these companies will have to obtain provincial level, R&D institutions, technology centers, or high-tech enterprise qualifications. Their main products must have technical invention patents.
Enterprises should adopt advanced technology, energy saving, environmental protection, safe and stable practices. Specifically, these brands must have the following
1. Lithium-ion battery companies should have the ability to monitor the uniformity of electrodes after coating. The thickness and length of the electrode coating should be controlled at a precision of not less than 2µm and 1mm respectively. They should have electrode drying technology, and the water content control precision should not be less than 10ppm.
2. Lithium-ion battery companies should have the ability to control temperature, humidity, and cleanliness during the injection process. They should have the ability to detect internal short-circuit high voltage (HI-POT) online detection after battery assembly.
3. Lithium-ion battery pack companies should have the ability to control the open-circuit voltage and internal resistance of single cells. The accuracy should not be less than 1mV and 1mO respectively. Furthermore, they should have the ability to check the battery protection board function online.
Image Source: Google Images
Source: bizchina
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