Ascend Injection Pumps Empower Battery Production of the eVTOL Industry
https://www.ascendtechs.com/Ascend-Injection-Pumps.html
With the advancement of battery technology and the exploration of unmanned aerial vehicle (UAV) and autonomous driving technologies since 2010, electric Vertical Take-Off and Landing (eVTOL) aircraft have gradually entered a phase of substantive development. The global eVTOL market size had reached $12.53 billion in 2023. As Urban Air Mobility (UAM) gains increasing public recognition, government authorities are ramping up investments, and enterprises are continuously iterating and upgrading key technologies. It is predicted that the global eVTOL market size will climb to approximately $35.79 billion by 2032.
Driven by low-altitude economy policies and the accelerated pace of eVTOL commercialization, the scale of China's eVTOL industry has expanded rapidly. Data from 2023 shows that the market size had reached 980 million yuan, with a year-on-year growth of 77.3%, and it was mainly concentrated in the Central-South, East China, and North China regions.
At the technical level, eVTOL aircraft still face significant challenges for true popularization: battery technology (in terms of range), safety, noise control, and stable flight in complex urban environments. The battery of an eVTOL aircraft is one of its core components. It is not a simple upgrade of ordinary electric vehicle (EV) batteries, but an “aerospace-grade power battery” redesigned to meet the extreme requirements of aviation.
The core requirements of eVTOL aircraft for batteries:
● High energy density & high power density – achieving both high energy and high power simultaneously poses a significant challenge in battery design.
● Safety – preventing thermal runaway
● Ultra-fast charging capability – typically requiring fast charging completion in approximately 30 minutes.
● Ultra-long cycle life
● Wide operating temperature rang – maintaining high-performance output even in high-altitude low-temperature environments.
To meet the above requirements, innovations have been made in the technology and manufacturing processes of eVTOL batteries, and the current mainstream battery type is the ultra-high nickel ternary lithium cylindrical battery. In battery production, the electrolyte injection process for ultra-high nickel ternary large cylindrical batteries is one of the precise and critical steps in their manufacturing process, as it determines the final performance, lifespan, and safety of the batteries. Due to the uniqueness of its materials (ultra-high nickel cathodes & silicon-based anodes) and structure (full tabs), the requirements for its electrolyte injection process are far more stringent than those for ordinary batteries.
1. An extremely dry environment;
2. High-precision electrolyte injection volume and consistency: the injection precision must reach the milligram (mg) level. The injection volume of each cell must be highly consistent with the variation controlled within ±0.1%.
3. Vacuum electrolyte injection, extremely high injection and wetting efficiency.
High-precision electrolyte injection pumps and supporting vacuum injection needles are the core components for the production of ultra-high nickel ternary lithium cylindrical batteries. FSH-CF series high-precision electrolyte injection pumps launched by Guangzhou Ascend integrate high efficiency, high precision, high stability and full numerical control in one. Micron-level processing technology is adopted to ensure they consistently maintain high-precision electrolyte injection performance. In terms of high-efficiency fluid transfer, it is widely used in the battery manufacturing industry. When paired with high-vacuum injection needles, it can achieve high-precision electrolyte injection in a high-vacuum environment.
FSH-CF series constant-flow electrolyte injection pumps paired with the FS-VIV-P series injection needles offer the following features and advantages:
1) The electrolyte injection pumps have obtained TÜV SÜD CE certification and ATEX explosion-proof certification. They feature high efficiency with an injection rate of up to 40g/s (CF150 series can reach 120g/s), a maintenance-free design, pulse-free operation and no pump jamming.
2) High pressure resistance up to 1MPa;
3) High precision with a repeatability accuracy within ±0.1%;
4) Intelligent control;
5) Simplify the traditional vacuum electrolyte injection device and enables direct electrolyte injection under vacuum conditions;
6) Reduce the impact of the vacuum environment on the electrolyte injection pump and pipelines, maintaining high-precision electrolyte injection.
Guangzhou Ascend Precision Machinery Company, which is committed to the field of high-precision micro-fluid control, has launched a variety of electrolyte injection pumps to meet the electrolyte injection requirements of different types of batteries, provides high-quality solutions for battery manufacturers and effectively promotes the development of the battery manufacturing industry.
https://www.ascendtechs.com/Ascend-Injection-Pumps.html
Guangzhou Ascend Precision Machinery Co.,Ltd.
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