What changes have the power battery structure undergone

With the rise of the power automobile industry in the past two years, the demand for power lithium batteries in the market is increasing. While the power battery market scale and demand are expanding, the demand for precision structural parts of lithium batteries is also showing a trend of doubling. What changes have the power battery structural parts experienced? On the market scale, the power battery structural parts have undergone great changes. The lithium battery precision structural parts are mainly the top cover of the battery cell shell, the steel/aluminum shell, the positive and negative electrode flexible connections, and the battery flexible connection bar. Safety, airtightness, energy efficiency, etc. all have a direct impact. Power batteries are one of the main constituent materials of lithium batteries and battery modules. The rapid growth of its market has promoted the rapid increase in the market scale and output value of the lithium battery structural parts industry. Such changes undoubtedly provide a good development opportunity for structural parts manufacturing enterprises, but it is not easy to stand out in such fierce competition. It is understood that due to the deeper binding of structural parts companies and lithium battery customers, the increase in the concentration of the downstream power battery market has led to a high degree of concentration in the structural parts market, and the polarization of the industry has become increasingly obvious. At the same time, under the urgent requirements of increasing the energy density of power batteries and not focusing on quantification of battery packs, many lithium battery companies have put forward higher requirements for lithium battery structural parts in terms of product performance and memory. The pressure is increasing. According to GGII data, China's new energy vehicle power battery sales volume was 30.8GWh in 2016, and it is estimated that China's electric vehicle output will reach 780,000 units in 2017, and the power battery output will reach 40GWh. This will bring great development opportunities to enterprises in the upstream industry chain of lithium batteries, and technology and strength lithium battery structural parts manufacturing enterprises will occupy more market shares. The industry believes that under the guarantee of the continuous growth of the new energy vehicle market and the large-scale expansion of power battery production capacity, the field of lithium battery precision structural parts will usher in a new round of market explosion in the next two years. The technical requirements for battery structures are very high. Although the scale of the lithium battery precision structural parts market is showing a rapid growth trend, and the number of new structural parts manufacturing enterprises is gradually increasing, the market competition is very fierce, and the industry's polarization development trend is becoming more and more obvious. As a hard firewall to ensure the safety and performance of power batteries, the output and quality of precision structural parts are the focus of attention of power battery companies at home and abroad. Lithium battery precision structural parts manufacturers have entered the supply chain system of battery companies and power battery products have entered the integration The supply chain of car companies is very difficult. A survey found that the threshold for precision structural parts manufacturing companies to establish stable supply relationships with large downstream customers is very high. When selecting suppliers, power battery companies often go through a strict, complex and long-term certification process, and will conduct a large number of on-site inspections and proofing. , Trial production, inspection and other procedures, and gradually form a long-term and stable strategic cooperative relationship. Power battery structural parts, as parts of the automotive industry, require quality control at the ppm level, which poses extremely stringent challenges for manufacturers. Indeed, manufacturers of lithium battery structural parts must master core technologies, have strong Ru0026D and manufacturing capabilities, and rapid response capabilities in order to stand out in the market competition. Technical requirements are not only manifested in years of accumulation and precipitation to master the core technology, with highly automated precision production equipment and strict production control system, but also a necessary condition for the success of lithium battery precision structural parts manufacturing enterprises. The production process of power battery structural products is generally guaranteed by precision production equipment and high-level production environment. It is necessary to use flexible manufacturing equipment, CNC machine tools, industrial robots and other automated and highly refined high-end manufacturing equipment, and the manufacturing environment is temperature-sensitive. , The dust content in the air and the insulation degree of the equipment surface have higher requirements. Although lithium battery precision structural parts have high technical requirements and it is difficult to enter the supply chain of battery companies, domestic structural parts manufacturers are still optimistic and have started expansion models to seize the market. According to industry insiders, the competition in this industry is very fierce, with many new entrants but basically not a large number. Kodali currently has the largest market share. Although the lithium battery precision structural parts industry has not formed a clearer competition echelon, in fact, the market has shown a polarized development trend. The polarization of the power lithium battery structural parts market shows that some people have already seized the opportunity. I believe that in the next few years, the demand for the power battery structural parts industry is increasing, the requirements are getting higher and higher, and the competition is getting stronger. 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