Proposals on the work of safety testing standards for lithium batteries

The Ministry of Industry and Information Technology has established an electronic product safety standard working group, preparing to carry out the work on lithium battery safety standards, and proposed the work goal of formulating portable lithium battery safety standards. Combining the development of my country's lithium battery industry and the status quo of safety standards, it is proposed that the formulation of my country's lithium battery safety testing standards pay attention to the following aspects: 1) Establish a unified national standard for lithium battery safety testing. Considering that the processing, marketing, and use of lithium batteries cover all areas of the national economy, a unified lithium battery safety test standard should be formulated in the form of the highest level of national standards. In order to maintain the uniformity of safety standards, the technical content of the current national and industry standards should be replaced by embedding or integration; in the future, with the development of lithium batteries, the safety requirements will be updated through standard revisions, and no other safety requirements will be formulated. standard. 2) The unified safety standard should be adapted to the product situation of the lithium battery. At present, lithium batteries are roughly divided into two categories: energy type and power type. The two types of products have certain differences in materials and design structures. Under the same safety premise, their standard experimental methods and even requirements may be different. Portable batteries belong to the energy type, including lithium batteries for mobile phones, notebook computers, digital cameras and camcorders, etc., while lithium batteries for electric tools, electric bicycles and electric vehicles can be classified as power types. It is proposed to develop energy and power lithium batteries respectively. standard. When formulating safety standards for lithium batteries, the principle of moderation must be grasped, that is, standards should seek and establish the best combination of product safety and performance, because the better the safety, the worse the electrical performance. 3) The content of safety test standards for lithium batteries should cover product design and manufacturing processes, and a corresponding regulatory certification mechanism should be established. Most of the safety problems of lithium batteries are caused by internal short-circuit defects that are difficult to simulate in current safety standards. Therefore, the design and manufacturing process of lithium batteries should be fully incorporated into the quality control system to effectively guard against the hidden dangers of internal short-circuits in products. The newly formulated safety test standards should extend their content to the design and processing links in the upstream of the product. It is proposed that when the national quality inspection department carries out the compulsory safety certification of lithium batteries according to the new safety standards, in addition to the final product safety test, it should also certify the content including product design and process review, manufacturing process supervision, and refer to the quality system Certification practices, establishing a system of regular review and random inspections, will ensure that the standard content is implemented and implemented to the maximum extent. Disclaimer: Some pictures and content of articles published on this site are from the Internet, if there is any infringement, please contact to delete. Previous: What are the precautions for the use of UPS batteries