Overseas standard of power lithium-ion battery and product size normalization

Recently, the national automobile standardization committee published on the official website an recommend national exposure draft of “standard size of power storage battery used in electric vehicles” that is revised by case committee organization. Although it is a voluntary national standard, it marks a new improvement on a standard system of power battery in energy vehicles.

The development of electric vehicles is limited by a power battery technology. On the one hand, the energy density of power battery needs to be improved. On the other hand, power battery in consistency, and system integration technology also needs to be improved. Because of the different power battery technology, makes the enterprise lack of unified standards, and had set up some related national standards nor with the development of new energy vehicle technology and timely follow up.

Therefore, it is necessary to refer to some of the foreign technology and standards to improve their own, let a new energy vehicles more orderly and healthy development.

Power battery standards abroad

Power battery on the international standards organization is the international organization for standardization (International Organization for Standardization, ISO), international electrotechnical commission (International Electrotechnical Commission, IEC), American society for vehicle engineers (Society of Automotive Engineers, SAE) and underwriters laboratories (Underwriter Laboratories Inc., UL), etc.

ISO is the world's largest specialized agencies and important nongovernmental standardization, released on power battery standard of ISO12405-1-2011 (electric road vehicles. Lithium-ion traction battery, and system test specification. Part 1: high power applications), ISO12405-2-2012 (electric road vehicles. Lithium-ion traction battery, and system test specification. Part 2: high-energy applications) and ISO12405-3-2014 (electric road vehicles - test specification Lithium ion power battery Group and systems - part 3: security performance requirements), etc.

IEC is the world's earliest non-governmental international electrotechnical standardization organization, is composed of the national committee of the international organization for standardization, about the standard of the power battery has an IEC62660-1-2010 (with auxiliary electric road vehicle driver the lithium battery Performance. Part 1: test) and IEC62660-2-2010 (electric road vehicle drivers with secondary lithium batteries. Part 2: reliability and abuse test), etc.

And SAE as the world's largest automotive engineering academic organization, the formulating standards for has the very high authority are widely used in automobile industry and other industries, the standard of power battery has SAEJ2929-2013 (electric and hybrid electric vehicle propulsion system security standards - lithium rechargeable battery).UL as the United States in the world's most powerful civilian security testing institutions, issued UL2580-2011 standard (electric vehicle batteries).

Such as the United States, Japan, the European Union, in the light of the specific conditions of the new energy vehicles development reference standards such as ISO, IEC, the establishment of a suitable development path power battery standard system. Perfect supporting these countries on the standard of power battery, strong pertinence, high degree of internationalization. In the power battery design, manufacture, testing, installation, inspection and acceptance of each link has a corresponding and comparatively detailed standard specification and instruction, and in close connection with the development of new energy automotive technology international level and independently.

The national standards of power battery

General power battery standard system from the structure, category and related properties of power battery for points. Power battery standard system framework as shown.

The main standard in the power battery in China mainly divided into two categories, national standards and industry standards, some of the main standards as shown in the table. List the first three lines of the national standard is in QC/T743-2006 lithium ion battery of electric vehicles. The update improvement on the basis of the old standard come on stage, better adapt to the demands of the development of the national new energy vehicles, but also need to be further in close connection with the development of industry and constantly updated.

So far, our country standard of power batteries can basically meet the demand of the development of new energy vehicles industry in China. But also, some problems in the application of these standards and the insufficiency, such as standard development lack of overall planning, update speed to keep up with technology and the change of the market, so as to make the standard of emergency and certain blindness. So standard system in China should be closely combined with the actual situation of new energy vehicles and power battery development, and considering the industry technology progress, make standard system can not only meet the urgent needs of the current, and can adapt to the progress of science and technology and innovation.

Conclusion

New energy vehicle is one of the country's strategic emerging industries, China's automobile industry should seize this corner overtaking opportunities beyond the auto industry of developed countries. Because power battery technology is developing continuously, all industries in this industrial chain need to timely grasp of power battery technology and market dynamics, give suggestions and contributions to improve power battery related standards, play a positive role to promote the new energy vehicle development.

The page contains the contents of the machine translation.