Aluminum Case For Primary Lithium Iron Battery LiFeS2
This product is a Aluminum Case for Primary Lithium Iron Battery LiFeS2 specifically designed for primary lithium iron phosphate (LiFeS2) batteries, serving as a core structural component in the battery packaging process. Unlike ordinary aluminum casings, this solution is specifically tailored to the high energy density, wide operating temperature range (-40°C to +60°C), and long storage life (10+ years) characteristics of LiFeS2 cells, with in-depth adaptation in material formulation, stretching process, and tolerance control.
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Product Introduction
The Aluminum Case for Primary Lithium Iron Battery LiFeS2, as a core structural component for battery packaging, addresses four major pain points in engineering procurement and system engineer selection: "technology compatibility, long-term reliability, batch consistency, and stable supply." Using aluminum alloy as the base material and precision-machined, it provides integrated packaging for physical protection, electrical isolation, environmental sealing, and efficient heat dissipation, adapting to all engineering applications. Its performance and manufacturing process perfectly match actual engineering requirements.
Manufacturing process
Raw Material Selection and Pre-treatment: Aluminum-magnesium-zinc-manganese alloy substrates conforming to the Lithium-Ion Battery Pack formula are selected, with priority given to RoHS and REACH certified suppliers. Each batch of substrates undergoes composition and mechanical property testing. Pre-treatment cleaning removes surface oil and oxide layers, laying a solid foundation for product molding.
Core Molding Processing (Stretching/Stamping): Imported CNC equipment is used for stretching pre-treatment of the substrate, with real-time parameter monitoring to ensure uniform shell wall thickness and dimensional tolerance of ±0.03mm. End caps are precision stamped, with electrode hole tolerance of ±0.02mm, ensuring compatibility with LiFeS2 battery cells.
Precision CNC Machining and Detail Finishing: Key parts such as sealing grooves and mounting holes of the molded LiSoCl2 Battery Case are precision machined using CNC machining, ensuring a sealing groove roughness Ra≤1.6μm, guaranteeing the product's IP67 sealing rating. Edges and corners are trimmed to remove burrs, improving product assembly convenience.
Core Welding and Sealing Assembly: Laser welding is used to assemble the product shell and end caps, controlling the welding gap to ≤0.02mm and the welding strength to ≥90% of the base material, eliminating seal failure. A dedicated sealing ring is installed to enhance the product's sealing performance and protect the internal battery cells.
Surface Treatment and Performance Enhancement: According to engineering requirements, customized treatments such as anodizing (AA20 grade, salt spray ≥500h) and electroplating are performed on the products. Automated production ensures a uniform Polymer Lithium battery Case surface; simultaneously improving the product's corrosion resistance or electrical insulation.
Comprehensive Testing and Outgoing Product Control: 5% of each batch of Lithium Ion Battery Pack is sampled for testing, covering all items including dimensions and sealing. Defective products are rejected, ensuring a product qualification rate of ≥99.8%. Qualified products are packaged according to standards and delivered after ensuring safe transportation.
Technical parameters
Thickness Parameters: The outer shell thickness ranges from 0.5-3 mm, adaptable to various battery packaging requirements. Thinner shells meet the lightweight and low-protection needs of small batteries, while thicker shells (2-3 mm) are used for large power batteries and high-safety special batteries, providing strong physical protection and structural support for the internal cells, aligning with the product's core characteristic of multi-scenario adaptability.
Density Parameters: Using aluminum alloy as the base material, the density is controlled at 2.7-2.8 g/cm³, significantly lower than steel. This facilitates lightweight battery design, reduces overall weight, and improves energy efficiency, making it particularly suitable for weight-sensitive engineering scenarios such as electric vehicles and aerospace. This is a key factor in achieving the product's lightweight advantage.
Tensile Strength Parameters: The tensile strength ranges from 150-500 MPa, varying due to different alloy formulations and processing techniques. High-strength shells are suitable for scenarios with high mechanical performance requirements, such as electric vehicles, effectively withstanding vibrations and impacts to prevent deformation and damage, ensuring safe and stable battery operation and demonstrating the product's reliable mechanical performance.
Corrosion Resistance Parameters: Corrosion resistance is evaluated through salt spray testing. It can withstand hundreds to thousands of hours of erosion in a standard neutral salt spray test without blistering, peeling, or other corrosion phenomena. This ensures the battery can operate normally in harsh environments such as near the sea and in humid conditions, effectively extending the product and lifespan and highlighting the product's excellent environmental adaptability.
Thermal Conductivity Parameters: The thermal conductivity is 150-250 W/(m·Kelvin). Utilizing the excellent thermal conductivity of aluminum alloy, the heat generated during battery operation can be quickly conducted to the casing and dissipated, effectively controlling the internal temperature of the battery, avoiding performance degradation and safety accidents caused by overheating, ensuring long-term stable operation, and demonstrating the product's safety protection value.
Main functions
Physical Protection
Resistant to mechanical damage such as impacts, compression, and vibration, protecting LiFeS2 cells and internal components. This effectively reduces the risk of battery damage in engineering applications.
01
Electrical Isolation
The surface treatment layer possesses excellent electrical insulation properties, preventing contact between the battery's internal electrodes and external conductive materials. This prevents short circuits and ensures the safe operation of engineering systems.
02
Environmental Sealing
Isolates the battery from moisture, dust, and corrosive gases, maintaining a stable internal environment. This prevents performance degradation and leakage caused by environmental factors.
03
High-Efficiency Heat Dissipation
Utilizing the excellent thermal conductivity of aluminum alloy, it quickly dissipates battery heat, controlling the internal temperature and avoiding safety hazards caused by overheating.
04
Assembly Adaptability
Precise dimensional and structural design adapts to cell assembly and battery module splicing, improving engineering installation efficiency and reducing assembly costs.
05
Packaging and Transportation
Given the Aluminum Case for Primary Lithium Iron Battery LiFeS2's delicate structure and susceptibility to impacts and scratches, layered protective packaging is employed, ensuring comprehensive protection against moisture, scratches, and collisions. This packaging closely matches product dimensions and specifications, meeting the requirements of bulk project delivery, and preventing damage to the product surface and sealing structure during transportation. Throughout the transportation process, the logistics status is tracked in real-time, and compliant logistics partners are selected to ensure the product arrives at the customer's designated location intact and on time, guaranteeing that the project procurement and delivery schedule is not affected.
Contact Us
If you have needs for sample testing, technical consultation, price evaluation, or bulk purchase of Aluminum Case for Primary Lithium Iron Battery LiFeS2, please feel free to contact us. Our professional team will provide full-process services to help you efficiently complete engineering selection and delivery.
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