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At present, energy storage systems are playing increasingly important colors in different fields, such as electric road situations, power systems and other fields. In this scenario, supercapacitors, as an energy-energy technology, have excellent functions such as high power density, maintenance-freeness, and longevity, which have become a hot spot for attention in the academic and industrial circles. In recent years, supercapacitor technology has progressed faster, especially in the academic world, there have been new technical breakthroughs. With the support of the academic world, the industry has also made great progress in production, manufacturing and application.
In this regard, the Energy Alliance Research and Development Department tracked the current situation and application conditions of super capacitors, and conducted prediction and analysis of the future development trends of super capacitors based on the market application conditions.
(Source: WeChat public number “China Kazumura Energy Industry Technology Alliance” ID: CNESA_ORG Author: CNESA Meng HaiEscortStar)
Manufacturing and application of super capacitors
Compared with traditional electrochemical energy-energy technology, super capacitors have advantages such as high output power, rapid response, maintenance-free, long life, and wide mission temperature. They can meet the requirements of multiple fields. Today, the market size and application fields are constantly increasing. This section will introduce the characteristics of super capacitors from super capacitor production and manufacturing, market introduction of product features, and introduce the current status of super capacitor market applications based on application areas.
1. Basic knowledge of supercapacitor production and manufacturing
As mentioned above, supercapacitors are mainly composed of electrodes, electrolysis materials, separators, current collectors and other parts. The important effect of electrodes is to store energy, and the important effect of isolation is to prohibit the electronic short circuit of the capacitor from being short-circuited. The current collector is used to transfer the collector current and carry the electrode active material. For supercapacitors, the adhesion thickness of the electric polar active material in the current collector and the related art will greatly affect the function of the supercapacitor, and are the key to capacitor production.
Figure 1 Two supercapacitor representation diagrams with different shapes:
(a) Round cylindrical core electrode assembly
(b) Maxwell Round cylindrical supercapacitor
(c) Ioxus soft-packed supercapacitors
Most commercial supercapacitors are circular cylindrical. As shown in Figure 1 (a), this type of supercapacitor is mainly made of two coils of electrodes attached to the active material of the aluminium collecting current body. The partition is located between the two electrodes. Song Wei curled his lips and wiped off the feathered uniform that was moistened by the cat. , to avoid the structure of electronic short circuit, the negative output end is located at the two ends of the core coiling assembly. After the roll is completed, the prepared roll core roll set is placed in the hard shell, the negative output end is connected to the outer shell, and the electrolytic quality is injected into sealing to prevent the complex from purifying the electrolytic quality and active materials. Escort manilaMaxwell, as the world’s top super capacitor supplier, owns the most advanced super capacitor manufacturing technology. It is the manufacturer of the world’s few manufacturers who mastered the dry method of making super capacitor electrode technology. The actress who is based on this technology on the opposite side is the heroine of the story. In the book, the heroine used this document to be purchased by Tesla, a famous electric vehicle supplier in the first half of 2019. After years of development, the company’s circular cylindrical capacitor straightening has achieved standardization, with the product straightening of 60mm, and the product height is adjusted to meet the request for divergent capacity.
The production degree of round cylindrical supercapacitors is relatively high, and the product formation cost is lower, which can meet the application in different fields. An important disadvantage of this type of super capacitor is that the heat dissipation function is poor. When the capacitor charges and discharges power, a large amount of heat can be generated quickly inside, and it is impossible to dissipate through thicker electrode layers in time. Although supercapacitors have higher effectiveness and lower power consumption ratio, temperature is still the main reason for limiting the product’s ultra-high power charging and discharging.
In order to reduce the heat dissipation function of the product, Ioxs has designed a different type of super capacitor. The appearance is shown in Figure 1 (c). This type of super capacitor is a soft packaged super capacitor. Product productionSugar daddyThe craftsmanship is similar to that of soft packaging steel ion battery production, and is usedPipeline escort is made by a Pinay escort. The extremely similar electrodes are placed in parallel and connected, and sealed through an aluminium plastic film. This product price is higher than that of round cylindrical products because of its excellent heat dissipation function and is suitable for ultra-high power application scenarios.
Reducing the capital today is the purpose of the hot spot for the development of super capacitors. It is important to reduce product capital through the development of low-cost data and new low-cost production technology research and discussion. Some research believes that when data capital drops by 90%, the price of super capacitor products will drop by 50%. At present, some new production arts are in the research and development stage, and it is expected that in the next few years, the production art of supercapacitors will be more severe, and product prices will land in a step further.
Sugar baby 2. Mainstream super capacitor manufacturers and their products
This section analyzes the products provided by different product suppliers based on the public information of super capacitor products on the market. The product competition function is analyzed by comparing the relevant parameters of the product, including capacitor, voltage, energy density, power density, task temperature range and other parameters. Table 2 provides product information from the mainstream supercapacitor supplier department in the global range.
Table 2 shows that the manufacturers in the table can supply the corresponding super capacitors. As long as Korea Vinatech and Ukrainian Yunasko produce hybrid ultra-high capacitors, Canada’s major Nesscap can produce non-aligned super capacitors. The side reflects the opposite of the ultra-high-grade capacitor as the most mature product of super capacitors and is a large number of products. Most manufacturers can also supply standard modules composed of serially connected to the single-electro supercapacitor units. These standard module technical parameters are also given in Table 2.
In addition, the manufacturer alsoYou can produce modules that meet user power and energy requirements according to your needs. These customized modules are also made in series and parallel with super capacitors. Panasonic is a manufacturer dedicated to the production of super capacitors and buckle type super capacitors.
The technical parameters in the table can be used to select supercapacitors that meet the needs of a specific field or scene. First, the data in the table shows that the range of capacitor values is wide, and the detail of the capacitor is determined by the detail of the electrode in the capacitor. On the contrary, the detail of the voltage is determined by the production technology, rather than by the electrode. The voltage is the hot point of current research and development. escortThe little girl sat back to the service desk and started to use short videos. She didn’t know what energy density it saw. The amount of voltage can reflect the product’s function at a certain level. Although the range of the amplitude voltage (2.3V-3V) given in the table is narrower, it affects the energy density. For example, capacitors with a predetermined voltage of 3V have a higher energy density (7.5KWh/KgEscort). Compared with single, the standard module has a wider distribution of rated voltages. The modules are constructed through single-line parallel connections. Each manufacturer has different domains and adopts a series-parallel strategy. In the end, it leads to differences in the modules produced by different manufacturers.
The data in the table shows that there is a certain correlation between the energy density and power density of supercapacitors. Products with higher power TC:
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