ബാറ്ററി ഷെൽ അലുമിനിയം ഫോയിൽ

2024-11-28 05:24:47

അലോയ്കൾ	1235, 1060, 1070,തുടങ്ങിയവ.
കോപം	H18
വലിച്ചുനീട്ടാനാവുന്ന ശേഷി (എംപിഎ)	165-200
നീട്ടൽ (%)	≥1.2
കനം (മി.മീ)	0.0060-0.16
Resistance (Ω.m)	0.25-0.55

പങ്കിടുക

Battery shell aluminum foil plays a pivotal role in modern battery technology, particularly in lithium-ion batteries, nickel-metal hydride batteries, and other high-performance energy storage systems. This article provides an in-depth look at its applications, നേട്ടങ്ങൾ, quality standards, and manufacturing processes.

Where to Use Aluminum Foil for Battery Cases

അലൂമിനിയം ഫോയിൽ is employed in the construction of battery cases for:

Lithium-ion Batteries: For their lightweight, high energy density, and flexibility.
Nickel-Metal Hydride Batteries: Offering a robust alternative for applications requiring high discharge rates.
Other Battery Types: Including pouch batteries and square battery casings.

The foil serves as a protective layer within the battery casing, preventing the ingress of moisture and oxygen, which could degrade battery performance over time.

Why Use Aluminum Foil for Battery Cases?

നാശന പ്രതിരോധം: Aluminum naturally forms an oxide layer, providing excellent resistance to corrosion, which is crucial for maintaining the integrity of the battery case.
ചാലകത: Aluminum’s high electrical conductivity ensures efficient current flow, enhancing battery performance.
ഭാരം കുറഞ്ഞതും ഇഴയടുപ്പമുള്ളതുമാണ്: Its properties allow for easy shaping and forming, accommodating various battery designs.
Thermal Management: Aluminum helps in dissipating heat, preventing overheating and ensuring safety and longevity.

Types of Battery Aluminum Foil

Here are some common types of aluminum foil used in batteries:

Plain Aluminum Foil: High-purity, uncoated foil for basic conductivity and mechanical support.
Coated Aluminum Foil: Enhanced with coatings like carbon or polymer for improved conductivity, അഡീഷൻ, and chemical stability.
Textured Aluminum Foil: Features a textured surface to increase the electrochemical reaction area, improving battery capacity.
Ultra-Thin Aluminum Foil: For lightweight and flexible batteries, with thicknesses as low as a few micrometers.
Laminated Aluminum Foil: Multiple layers bonded for enhanced strength and resistance to mechanical damage.

Comparison of Aluminum Foil Alloys:

ലോഹക്കൂട്ട്	കോപം	വലിച്ചുനീട്ടാനാവുന്ന ശേഷി (എംപിഎ)	നീട്ടൽ (%)	കനം സഹിഷ്ണുത (മി.മീ)
1235	H18	170-200	≥1.2	±3%
1060	H18	165-190	≥1.2	±3%
1070	H18	≥180	≥1.2	±3%

Advantages of Battery Aluminum Foil

Excellent Physical Properties: High conductivity and corrosion resistance extend battery life.
Soft and Easy to Process: Simplifies electrode manufacturing, reducing costs.
Protects Current Collectors: Enhances battery stability by preventing mechanical and chemical damage.

Mechanical Properties and Electrical Resistance

വലിച്ചുനീട്ടാനാവുന്ന ശേഷി: Varies by alloy and temper, typically ranging from 150 വരെ 200 N/mm².
നീട്ടൽ: Ensures flexibility and resistance to breakage.
Electrical Resistance: Decreases with increasing thickness, നിന്ന് 0.55 Ω.m at 0.0060 മില്ലിമീറ്റർ മുതൽ 0.25 Ω.m at 0.16 മി.മീ.

മേശ: Electrical Resistance by Thickness

കനം (മി.മീ)	Resistance (Ω.m)
0.0060	0.55
0.0070	0.51
0.0080	0.43
0.0090	0.36
0.010	0.32
0.11	0.28
0.16	0.25

Quality Requirements for Battery-Grade Aluminum Foil

Surface Uniformity, ശുചിത്വം, and Smoothness: Ensures optimal performance and longevity.
No Rolling Defects: Prevents issues like creases and stains that could impact battery life.
Consistent Color: Prevents variations that might affect battery consistency.
No Oil Contamination or Stains: Maintains cleanliness for optimal performance.

Manufacturing Process of Battery Aluminum Foil

കാസ്റ്റിംഗ്: Aluminum is melted and cast into blocks or logs.
ഹോട്ട് റോളിംഗ്: Reduces thickness at high temperatures.
കോൾഡ് റോളിംഗ്: Further reduces thickness at room temperature.
അനീലിംഗ്: Enhances flexibility and strength.
പൂർത്തിയാക്കുന്നു: Trimming, ഉപരിതല ചികിത്സ, and quality control.
സ്ലിറ്റിംഗും പാക്കേജിംഗും: Prepares the foil for distribution.

Frequently Asked Questions about Battery Case Aluminum Foil

Can any aluminum foil be used for battery cases? ഇല്ല, specific alloys and specifications are required for optimal performance.
How does aluminum foil contribute to battery safety? By providing corrosion resistance, aiding in thermal management, and ensuring consistent conductivity.
What should I do if I notice corrosion on the aluminum foil? Investigate the root cause and consider using more resistant alloys or protective coatings.