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Battery inspection equipment industry characteristics and prospect analysis
Release time:
2023-10-17
Recently, Akira Yoshino, a Japanese scientist who won the Nobel Prize in chemistry for lithium-ion batteries this year, accepted an interview with the First Financial reporter. In the interview, he said that lithium batteries will still dominate the battery industry in the next 10 years, and the development of a new generation of information technology such as artificial intelligence and the Internet of Things will bring "unimaginable" changes to the application prospects of lithium-ion batteries. In the future, the energy density of lithium batteries may reach about 1.5 times to 2 times of the current, which means that the battery will become smaller. The contradiction between energy density and safety requirements and traditional lithium-ion battery technology will become more and more prominent.
Recently, Akira Yoshino, a Japanese scientist who won the Nobel Prize in chemistry for lithium-ion batteries this year, accepted an interview with the First Financial reporter. In the interview, he said that lithium batteries will still dominate the battery industry in the next 10 years, and the development of a new generation of information technology such as artificial intelligence and the Internet of Things will bring "unimaginable" changes to the application prospects of lithium-ion batteries. In the future, the energy density of lithium batteries may reach about 1.5 times to 2 times of the current, which means that the battery will become smaller. The contradiction between energy density and safety requirements and traditional lithium-ion battery technology will become more and more prominent.
In the past ten years, driven by energy technology changes and emerging technologies, the global lithium-ion battery production has entered a period of rapid growth, according to public data, it is expected that the global lithium battery growth rate will be stable in 2018, the output is expected to reach 155.82GWH, and the market size will reach 231.326 billion yuan. China is one of the important producers of lithium batteries, in 2017, China's lithium battery production exceeded 10 billion, a growth rate of 27.81%, in 2018 is expected to reach 12.1 billion lithium battery production, a growth rate of 22.86%.
From this point of view, the demand for lithium batteries in the market will still be very hot, and the safety risks of lithium batteries, whether in the past or in the future, are people's great concern, after all, lithium batteries are closely related to our lives. In order to ensure the safety of lithium batteries, strict quality control and check are carried out in the early manufacturing process, and various safe use tips are provided in the later consumption use. But in fact, after the production of lithium batteries, before reaching the hands of consumers, a series of tests are needed to ensure the safety of the battery and reduce safety risks. The vigorous development of the lithium-ion battery industry has also brought new opportunities to the field of lithium-ion battery testing. Lithium battery testing equipment in addition to the production and manufacturing of the necessary cell sorting and testing system, charge and discharge testing system, protection board testing system, wire harness testing system, BMS testing system, module EOL testing system, battery pack EOL testing system, working condition simulation testing system, chemical content testing and so on.
1, battery testing equipment industry overview
Battery testing equipment is used to test the reliability and safety of batteries, mainly for battery research and development and production, the battery charge and discharge rate, high, medium and low rate discharge characteristics, large and small current overdischarge characteristics, room temperature high temperature low temperature internal resistance, storage characteristics, capacity distribution test and other reliability testing; And the battery internal short circuit, continuous charging, forced discharge and other current resistance safety test.
Battery development and production testing
Source: PWC
Different battery types also require different battery testing equipment.
According to the classification of the use characteristics of the battery, the battery is divided into primary battery and secondary battery.
The active substance of the primary battery can no longer be used when consumed to a certain extent, such as ordinary zinc-manganese dry batteries, alkaline zinc-manganese dry batteries; Secondary batteries, also known as rechargeable batteries or accumulators, can be recharged after discharge to regenerate the active substance, and such batteries can be reused many times.
Battery testing is a necessary step in the battery production process. According to the characteristics of the battery, the battery testing generally includes battery voltage and current testing; Battery internal resistance test; Battery capacity test.
The corresponding equipment is called the detector, the internal resistance tester, the capacity tester, and the detection content of different instruments may contain one or more of the above detection content, and the technical parameters are different. The name of the tester that includes all the functions is also called the comprehensive tester.
For different battery capacities, such as lithium batteries, nickel-metal hydride, nickel-cadmium batteries, alkali batteries, lead batteries, etc., the detector will also be different, and the corresponding technical parameters are also different.
2. Characteristics of industry development
(1) The cyclical nature of the industry
The industry fluctuation of battery testing equipment is mainly related to the downstream battery market demand, and the battery market demand is closely related to the macroeconomic environment and the industry application of batteries. In recent years, countries have paid increasing attention to energy conservation and environmental protection, and battery product technology has become more mature. Previously, 3C products were the largest application field of lithium batteries, and the rapid development of mobile smart devices such as smartphones, tablets and laptops has promoted the rapid growth of lithium battery applications. At present, the growth of lithium battery demand for 3C products has been relatively limited, and the rapid development of the emerging lithium battery application market represented by new energy vehicles and energy storage will drive the rapid growth of lithium battery market demand in the next period of time. Due to the continuous expansion of downstream application fields, the market demand is huge, and the periodicity of the industry is not obvious.
(2) The region of the industry
Battery testing equipment manufacturers are mainly concentrated in East and South China. Downstream application enterprises are mainly distributed in the Yangtze River Delta, Pearl River Delta, Beijing-Tianjin-Hebei and other industrial concentration areas.
3. Industry risk analysis
(1) Battery technology replacement risk
Battery testing equipment will have different testing standards and technical content for different batteries, the current market for secondary rechargeable batteries are mainly nickel-metal hydride batteries, nickel-cadmium batteries and lithium batteries, of which nickel-metal hydride battery technology is the most mature, but due to the nickel-metal hydride battery itself capacity defects, lithium battery market share gradually increased, with the reliability of lithium batteries gradually improved. The future trend of the battery industry is that lithium battery technology will eliminate nickel-metal hydride batteries. The battery testing equipment industry closely dependent on the battery manufacturing industry will also cause changes in the industry pattern due to the replacement of battery technology, so the future battery testing equipment industry will cause risks due to the replacement of battery manufacturing technology.
(2) Industry integration risk
Battery testing equipment industry belongs to the entire battery production chain branch chain, battery manufacturers are generally large, battery testing equipment this link is an integral part of production, manufacturing, research and development, if the battery manufacturers according to their own production and research and development needs, the integration of related testing equipment industry, will have a greater impact on professional battery testing equipment manufacturers.
4, battery detection equipment entry barriers
(1) The rapid development of the battery industry has put forward higher requirements for the technical reserves, market response capabilities, application research and development capabilities and differentiated production capabilities of enterprises in the battery testing equipment industry. The research and development and production of battery testing equipment requires the comprehensive application of software technology, power conversion technology, measurement and control technology, system integration technology, process technology, etc. These technologies involve cross-industry and multidisciplinary technologies such as light, machinery, and electricity, and the overall integration toward new materials, new processes, and new technologies. For new entrants to the market, to provide the overall solution of battery testing equipment, the accumulation of production technology and the training of compound talents will take a long time. Moreover, the research and development, trial and trial of new products until the formal application cycle is long, and it is difficult for new enterprises to achieve a variety of high-level battery detection technology breakthroughs and applications in the short term. At the same time, as people pay more and more attention to the safety of battery applications, the testing standards will be higher and higher, which requires battery testing equipment suppliers to constantly track and absorb new technologies in the industry, and constantly improve the accuracy of testing. If enterprises want to master the above technologies, they need to be equipped with compound technical personnel with rich theoretical knowledge and practical experience, and need to go through long-term research and development investment and technology accumulation. Therefore, the ability of technology development, integration and control of the research and development cycle constitutes a barrier to entry in the industry to a certain extent.
(2) Market barriers
Due to different battery production and testing standards, and with the continuous expansion of the battery application market, battery products continue to upgrade, the battery assembly process of downstream customers is different, and the core process on the assembly line uses different solutions and continues to upgrade. Therefore, the industry enterprises mainly rely on their own research and development strength to provide all kinds of overall solutions to downstream customers in different application markets, and continue to accumulate experience in the implementation process to form independent technologies and products. In the research and development process of battery testing equipment, technicians must prepare different program software, adjust different detection parameters, and develop different testing equipment according to different battery production needs, so that the detection accuracy and reliability of the test results can reach the predetermined goal.
Battery detection technology is the integration of a number of technologies such as power electronics, automation, instrumentation, etc., and the research and development breakthroughs and high integration of various technologies require industry experience, so enterprises need long-term experience accumulation to have the ability to enter different battery application markets.
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