As we all know, the battery PACK is the core energy source of new energy vehicles. It provides drive power for the whole vehicle. It mainly constitutes the main body of the battery PACK through the envelope of the housing. The battery PACK consists of several parts, including batteries, modules, electrical systems, thermal management systems, housings, and BMS.
The state issued relevant standards to achieve healthy and sustainable development of the industry
On November 24, the China Machine Center issued the Notice on Adjusting the Technical Requirements for the Inspection of GB/T31467.3-2015. To reduce the burden on the enterprise, the actual measured items should be reduced as much as possible under the premise of ensuring product safety, as discussed by the Automotive Products Technical Committee. Approved by the competent authority, the technical requirements for the examination of GB/T31467.3-2015 "Lithium-ion battery packs and systems for electric vehicles Part 3: Safety requirements and test methods" are adjusted. The newly declared automotive products have been used since 2018. On the 1st of the month (the announcement of the 304th batch) began to implement.
According to reports, Shenyang Power Battery Center (October 24, BMW Brilliance Shenyang Power Battery Center was officially unveiled) has become BMW's largest battery center outside of Germany. Its supplier Ningde Times President Huang Shilin said in an interview earlier, “The current state There are some thresholds for subsidy policies, such as the temporary suspension of three-cell batteries on buses, and the healthy and steady development of the industry.
China's battery PACK capacity is gradually expanding
It is true that China's power battery PACK business started late and its technology level is lower than that of Japan and South Korea. However, China’s power battery production scale is increasing year by year, especially in 2015, the industry’s growth rate was as high as 229.5%, and its capacity exceeded 30 billion yuan. Yuan, reaching 34.69 billion yuan, is expected to be 2019, the power battery PACK industry will form a 100 billion market.
It is understood that at present, China's power battery PACK industry market participants have three types: battery production companies, vehicle companies and professional battery PACK companies, their market share is currently 60%, 20%, 20%.
As a leading company in China's new energy vehicles, BAIC Group covers battery products with large, medium and low, high, medium and low levels, different configurations, and different battery life to meet the diverse needs of users.
It is worth mentioning that the battery module of BAIC New Energy adopts the standardized and modular technology, namely the BJEV Standardized Battery Module (abbreviated as BSBM), and industry experts believe that “this will also be a future directionâ€.
Industry stakeholders believe that if the same standard module is used to build the battery PACK, not only can it quickly provide suitable battery packs for different models, but it can also optimize battery cooling in the structure, improve battery PACK work efficiency, reduce costs, and reduce development. cost.
In addition, enterprises can ensure the consistency, safety, and reliability of battery packs as much as possible by putting them into production according to uniform production standards, making the production process more efficient.
Needless to say, high-quality power battery PACK companies need to customize R&D and design for power battery BMS solutions, thermal management, space dimensions, and structural strength based on the individual needs of depot customers' different models. It is understood that Geely Automobile also made a corresponding breakthrough in the battery, through the use of battery PACK modular design, to the customer to achieve more possibilities. According to the relevant person in charge, "In the field of plug-in hybrid vehicles, a standardized module has been selected, and battery packs can be developed on a platform basis for different vehicle models and wheelbases, making the cost more controllable."
He also said that in order to better enhance the body stiffness, Geely Automobile will continue to develop the integration of the battery pack and the body (the whole body of the pure electric vehicle).
Increasing cruising range through modular battery packs abroad
Compared with the domestic new energy automobile market, the competition in foreign countries is becoming increasingly fierce. The auto makers are squeezing their heads and trying to increase the mileage of their cars, so they have entered the field of battery PACKs. The latest news, Mercedes-Benz will be equipped with "modular battery packs" for the new electric buses exhibited in 2018. It is understood that modular battery packs can be used not only in electric buses, but also when the technology is mature, they can be put on Mercedes-Benz's flagship models, which greatly saves production and design costs.
More importantly, by using the same basic architecture to develop battery packs, the design and manufacture of batteries is as simple as building LEGO bricks. This means that the price of Mercedes-Benz's electric vehicles may also drop.
In addition, the German Mercedes-Benz will also exhibit the brand new Citaro electric car in the IAA (Hanover International Commercial Vehicle Show) in 2018. Judging from the information currently exposed, the most important feature of the pure electric version of the Citaro model is that it adopts a modular battery structure and will start producing "modular battery packs" before the end of 2018. Hartmut Schick, head of the Daimler Bus Company, said: “Our city buses will be zero-emissions and give the city public road traffic a quiet green experience.â€
As the development of the power battery industry matures, the battery PACK modularization technology will surely become more and more mature. Relevant experts believe that there are two possible ways to improve Pack's integration efficiency: First, optimize the internal structure design of PACK, greatly reduce the number of components inside PACK, and integrate more components and functions into modules and cabinets. On the other hand, the weight is reduced; the other is the use of lightweight materials, such as the use of aluminum or composite materials instead of high-strength steel, the use of plastic parts instead of metal parts, etc., can also reduce weight.
It is true that the development of battery PACK technology involves multidisciplinary and multidisciplinary knowledge and requires interdisciplinary technology integration. All in all, car manufacturers want to produce PACK products whose life span, stability, reliability and safety are fully in line with the requirements of new energy vehicles, and also require a large number of engineering practices and test verification, as well as continuous optimization and upgrading of products. process.
Explosion Proof Motor,Explosion Proof Servo Motor,Exproof Motors,Explosion Proof Ac Motor
Yizheng Beide Material Co., Ltd. , https://www.beidevendor.com