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Interpreting the new standard of power battery and its market impact

the unification of the specification and size of power battery is not only conducive to the development of power battery manufacturers, but also beneficial to the development of power battery industry. The standardization of power battery size is the general trend. However, for some power battery enterprises, the time for production line adjustment is urgent, and the brutal survival competition officially began

the impact of the new battery standard on the market

1. The unified standard is convenient for large-scale production and is conducive to reducing costs

Wang Fang, the leader of the formulation of the specification and size standard and the chief expert of the power battery of the China Automotive Technology Research Center, said: "the inconsistent size and specification leads to poor interchangeability. Every time the automotive enterprise produces a new product, the battery enterprise has to redesign the battery pack, which is not conducive to reducing costs."

moreover, statistics show that at present, there are more than 140 power battery production enterprises in China, and each enterprise needs to develop and produce battery products of various specifications and sizes according to the actual needs of customers. Even in the same power battery manufacturer, the size and shape of power batteries used in different models of the same customer are also different. At present, there are thousands of electric vehicle products that have passed the catalogue, but the specifications and sizes of battery packs of almost every model are different

after the unification of power battery standards, for power battery enterprises, it is convenient for large-scale production, and manufacturing equipment can also be standardized. It is expected that by 2019, it can also reduce R & D and design, production line investment and manufacturing cost consumption as a whole, and achieve comprehensive cost reduction

for vehicle enterprises, after the standardization of power batteries, the choice of supporting battery enterprises has greatly increased. Whether a vehicle enterprise uses batteries from multiple battery factories or multiple vehicle enterprises use batteries from one battery factory, they can be interchanged and interconnected, so as to greatly reduce the cost of using links, and at the same time, it is easier to realize the accumulation of technology. Only in this way can we achieve the popularization and promotion of new energy vehicles

it is worth mentioning that the standardization of power battery specifications is also a great benefit for equipment enterprises. Driven by policies, equipment enterprises will usher in a new round of outbreak

2. It is difficult for enterprises to adapt to the official opening of the survival competition

although the official draft is much more relaxed than the opinion draft, the standard is still somewhat narrowed, and some enterprises are difficult to adapt. The release of the new battery standard also means that the current production lines of almost all battery enterprises need to be transformed, but the production line adjustment will take at least 3 months, and the production line adjustment will bring a series of changes such as structural parts, modules, boxes, and even the replacement of the whole line, followed by high expenses and at least half a year to adjust, and a series of changes such as adjustment, which seems to be a little caught off guard for some enterprises

although it is still half a year before the formal implementation of the standard, enterprises with backward technical strength and unstable capital chain may not be able to keep up with the overall trend, and will inevitably be eliminated. In the second half of 2017, the power battery industry will usher in a new round of reshuffle

3. Increasing awareness of standards and gradually mastering the right to speak

we have been saying that power batteries are the "heart" of new energy vehicles. It can be seen how important power batteries are. It can be said that mastering the core technology of power batteries basically stands at the winning point of the new energy vehicle industry. If China loses the right to speak in standard design, the entire industrial chain lacks the right to speak, and we can only follow the pace of foreign countries, Become a follower of following suit

lithium battery big data understands that China's VDA battery cell standard was released only in 2013, but VDA (German Federation of automotive industries) has submitted its own battery cell size to the international organization for standardization and applied to become an internationally accepted standard

but in fact, China has long been ahead of VDA and formulated its own standards, but there are few respondents, and few power battery enterprises are cited. On the contrary, for VDA standards, there are many adherents

at present, many domestic battery manufacturers and new energy vehicle manufacturers have begun to produce and apply VDA (German automobile industry federation) standard size battery cells

the formulation of this standard shows that the standard awareness of power batteries in China is gradually increasing. By establishing its own standards, improving the current situation of relying on foreign standards in equipment manufacturing, battery grouping, battery packaging and other links, it gradually takes back the voice of key component standards, and helps new energy vehicles overtake in corners, so as to realize the dream of becoming a powerful country in automobile manufacturing

although the formulation of the specification and size standard has always been controversial in the industry, the author is full of expectations for the implementation of the specification and size standard of power batteries, and is very optimistic about the positive impact of standardization on China's power battery industry. Standardization will accelerate the large-scale production of power batteries by setting the speed range switch 30 at 0 degrees/min ⑶ 60 degrees/min, which is also of great positive significance for promoting the standardized development of China's power battery industry, improving product quality and enhancing the internal competitiveness of the entire industry. At the same time, the author believes that power battery enterprises, vehicle manufacturers and recycling enterprises need to establish a cascade recycling industrial chain of power batteries, create an ecological recycling industrial chain of power batteries, and promote the healthy development of power battery industry

it is worth noting that lithium battery big data learned that relevant departments revealed that in order to better adapt to and keep up with the development of the new energy battery industry, the specification and size standard will be adjusted annually in the future

specific content of the new battery standard

on August 4, the official draft of gb/t product specifications and dimensions of power batteries for electric vehicles (hereinafter referred to as "specifications and dimensions standard") was released, and the detailed content of the national standard for the specifications and dimensions of power batteries was finally settled. Lithium power big data learned that the standard was officially implemented on February 1st, 2018

[standard name] gb/t power battery for motor vehicles product specifications and dimensions

[drafting unit] China Automotive Research Institute, China Automotive Association, BYD, BAIC, Chang'an, FAW, Ningde, Tianjin Lishen, Hefei Gaoxuan, etc.

[issuing unit] State Administration of quality supervision, inspection, quarantine National Standardization Administration Committee

[release time] August 4, 2017

[implementation time] February 1, 2018

specification and dimension standard for battery product specifications and dimensions includes six aspects, namely "General requirements for battery product dimensions and specifications", including "dimensional tolerance requirements" and "dimensional range requirements"; "Specification and size of single battery", including the specification and size of cylindrical battery, square battery and soft pack battery; "Specification and size of battery module"; "Specification and size of battery standard box". Among them, "General requirements for dimensions and specifications of battery products" is a new requirement in the official draft

General requirements for specifications and dimensions of battery products

dimensional tolerance requirements: all dimensions of single battery specified in this standard shall be selected with precision m tolerance level according to the limit deviation of linear dimension in gb/t 1804

the size range requirements stipulate that in order to unify the specification and size of batteries, the standard stipulates that single batteries, battery modules and battery standard boxes in the same size range belong to the same specification products

specification and size of cylindrical battery

compared with the setting and matching of the specification and size of cylindrical battery in the opinion draft, the official draft retains 18650 models, cancels 32650 models, and adds 21700, 26650, 26700, 32700 and 32134 at the same time. Therefore, there are six sizes of cylinders, and the choice space of enterprises is also broader

specifications and sizes of square batteries

in the official draft, there are 125 kinds of size standards for square batteries, of which the width is still 8 standards. Batteries with a width of 148 mm and 173 mm have more choices in thickness and height standards

Description: N1 - thickness of square battery; N2 - width of square battery; N3 - height of battery without pole

specification and size of soft pack battery

the width of soft pack battery has a total of 7 sizes, among which the batteries with a width of 118 mm and 161 mm have more choices upstream of the height

Description: N1 - thickness of soft pack battery; N2 - width of the soft pack battery; N3 - height of battery without pole

the battery module must be inserted into the power socket with protective grounding. The specification and size of the block

in the official draft, there are more choices for the battery module standard. In terms of width, there are 12 sizes of cylinder, square and soft bag; In terms of thickness and height, there is a wider choice

Description: N1 - thickness of power battery module; N2 - width of power battery module; N3 - height of power battery module

specification and size of battery standard box

the typical size of battery standard box of electric commercial vehicles is changed from the text of the opinion draft to the appendix of the official draft. The implied meaning behind it is self-evident: the specification and size of battery standard box is not a mandatory standard

note: N1 - next, improve the thickness/length of the box in terms of improving industry effectiveness and access threshold; N2 - width of battery box; N3 - height of battery box