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Product Series
The company's 2 core products are wet base films and coated films based on wet base Films
Adopting wet biaxial stretching process, the thickness of the finished product is uniform and can be adjusted from 3-16 microns, with wide controllable range of porosity and air permeability, uniform distribution of microporous structure, and good consistency of all properties. Through the customized process route, we can improve the mechanical strength of the diaphragm, adjust the porosity structure of the diaphragm, and produce different thickness specifications of the base film to meet the needs of different customers' batteries.
The use of suitable particle size of alumina to build a high porosity coating suitable for a certain charge/discharge rate of the battery, and provide the overall thermal stability of the diaphragm, oxidation resistance, and electrolyte wettability.
The use of suitable particle size of Bumite to build a high porosity coating suitable for a certain charge/discharge rate of the battery, and provide the overall diaphragm thermal stability, oxidation resistance and electrolyte wettability, compared with aluminum oxide coating, Bumite coating is more lightweight.
According to the actual needs of the battery end, PVDF spraying layer with different surface density can be provided to complete the bonding effect to the pole piece under certain thermal pressure conditions, shorten the transmission distance of lithium ions and maintain the rigid shape of the battery, and to a certain extent reduce the impact of expansion and contraction of positive and negative electrodes during charging and discharging.
According to the actual needs of the battery end, PVDF spot coating with different surface density can be provided to complete the bonding effect to the pole piece under certain heat pressure conditions, shorten the transmission distance of lithium ions and maintain the rigid shape of the battery, and to a certain extent reduce the impact of expansion and contraction of positive and negative electrodes during charging and discharging, compared with spraying, the spot coating bonding effect is more uniform.
About Us
◆ Development and production of high performance wet process diaphragms and high-end functional coated diaphragms.
◆ Established in 2018, it adopts international advanced equipment and technology and has laid out three major production bases: Taizhou, Anqing and Yichun.
◆ Continuously investing in R&D, product development has reached more than 60 varieties.
◆ The scale of production capacity is expanding rapidly to meet the large-scale market demand.
Current diaphragm capacity
Base film and functional coated film
R&D Engineer
Invention/Utility Model Patents
Industrial Base
Core Advantages
The wet process high performance barrier film and ceramic high temperature resistant coating film developed by Hengchuan Technology has excellent characteristics such as uniform pores, high tensile strength, consistent air permeability, high bonding strength, low moisture, and uniform coating.
Production line upgrade
The production line has upgraded itself three times iteratively, and the large width (effective width 7.5m) design leads the new direction of the industry.
Rich application scenarios
Diaphragm has a rich knowledge base in lithium battery application scenarios and can be deeply customized for product output.
Quality Assurance
Product features are obvious, high bi-directional tensile strength, higher safety performance against heavy impact.
High compatibility
Rich product line with both energy density and power density (better matching of pores and apertures)
Self-developed
Interdisciplinary research and development team for raw materials, processes and equipment (whole process, whole process, self-research for key equipment)
High conversion rate of results
Efficient results market conversion rate (≥4/year, around safety, performance, continuous upgrading and development of new products)
News Events
Focusing on high performance lithium battery separator technology
Phone
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No.101 Xingjiang Road, Jiangyan District, Taizhou City, Jiangsu Province