High Purity Soldering Nickel Strip For Lithium Battery Packs Welding

High purity nickel strip foil for lithium battery packs welding

Product Description

Vacuum melting has the following strong points:
• The gas in the liquid metal can be discharged quickly to form low air content in the fusant.
• The oxidizing loss of alloying element will be cut down in large amount and the oxidation slag inclusion in the fusant will be cut off sharply.
• The fusant doesn't need covering flux and flux addition, not vulnerable to contamination.
• Improve the performance of metal alloy with an increase of 80% for impact ductility, 30% respectively for long-time strength and extensibility, and 50% for reduction of cross section area.

Analyze 16 impurity elements, the purity can reach 99.986%; analyze 11 impurity elements, the purity can reach 99.99%, and the total amount of other elements is equal to or less than 0.01%, nickel purity is increased distinctly in comparison with other advanced nickel processing countries. Stepwise reduction and slagging technologies are firstly introduced at home with the content of sulfur and phosphorus under 10ppm, and resistivity ρ≤0.068 Ω•mm2/M, which guarantees the achievement of stable and uniform resistivity and well meets the production requirements. The processing adopts hot cogging and cold rolling, which not only reduces contamination but also saves energy source. Medium roll and finishing mill both adopt imported multi-roll machine for rolling press with the minimum thickness of 0.02 mm and tolerance control ±0.001mm, uniform in material hardness, the specification state includes M, 1/4Y, 1/2Y, 3/4Y, Y, narrow strip processing adopts Germany imported equipment to cut strips. The section is regular rectangle. This process is precise and of high technical requirements and its product quality is excellent with minimum width of 1mm.

Physical feature
Density in 700F 8.90 g/cm3; 0.322 ib./cu.in
Linear expansion coefficient (Inch/Inch/0C) 20-100℃　0.000014　20-200℃　0.000014
Linear expansion coefficient (Inch/Inch/0C) 0.000015　20-700℃　0.000016
Youngs modulus of elasticity,E,PSI×10-6 30.1
Conductivity 22.6% IACS
Specific resistance in200C microhm.cm:7.63　ohms/cir.mil./ft.:45.9
Thermometric conductivity cal./cm.2sec.0C/cm.at700C:cal./cm.2sec.0C/cm.at700C:0.206　BTU/ft.2/hr./0F/ft.at 1580C:49.9

Characteristic
1. Pure nickel material has good corrosion resistance in NaOH solution of any concentration and temperature and molten NaOH above 400°C. Pure nickel material has good corrosion resistance to Na2O2, Na2CO3, NaHCO3 and alkaline solution or molten liquid containing KNO3.
2. Pure nickel is a silver-white metal with a density of 8.9g/cm3 and a melting point of 1453°C. It has excellent corrosion resistance because the surface is oxidized to form a dense and strong protective film at room temperature; pure nickel has excellent welding performance and processing performance, and can be processed into products such as pipes, rods, strips, and foils.

Surface Quality

(1) The strip should be straight, but slight waves are allowed; the side curvature of the strip is greater than 3 mm per meter of cloth.
Application example: used in the manufacture of chemical equipment such as pipelines, heat exchangers, evaporators, heaters, reactors, etc.; targets for various coatings; electrodes, etc.
(2) The surface of the strip should be smooth and clean, and there should be no wind layer, cracks, bubbles, thorns, pressure and folding inclusions;
(3) Slight local defects such as scratches, spots, pits, indentations and roll marks are allowed. Slight oxidation color, darkening and slight local oil stains are not allowed. Scrap basis;
(4) Both sides of the strip should be cut evenly without burrs, cracks and curling.

Strip grade, condition, specification

Production Process

Shipping packaging

FAQ

1.Are you trading or manufacturer ?
We are company,and we have our own factory

2.How long is your delivery time?

3.Do you provide samples ? is it free or extra ?
Yes, we could offer the sample for free charge but do not pay the cost of freight.
If you have another question, pls feel free to contact us

Our advantage
1. Perfect management system: We operate strictly in accordance with the quality management system.
2. Professional sales and after-sales service team: We have a number of sales specialists, 24 hours a day online service, can quickly solve customer questions and after-sales.
3. Reliable quality: from the procurement of raw materials, to the process inspection of product production and finished product inspection, to the inspection of packaging, all are strictly controlled, with a number of advanced testing equipment and instruments, such as temperature rise tester, conductivity tester , tensile testing machine, etc.
4. Timely delivery: We have many years of production experience, strictly control the cost of each process, have multiple automated production equipment, and have a stable production chain.
5. Intelligent workshop: It has intelligent mechanical operators and multiple precision operation platforms.

Located in the Yangtze River Delta, the beautiful coast of Taihu Lake with convenient traffic, Yixing Dingfan New Energy Technology Co., Ltd.is a professional customized manufacturers specialized in development, production and sales of lithium batteries, copper bar, aluminum bar and bus bar of power battery applications, positive and negative electrodes of battery, composite transition materials connecting pieces; and battery hardware, nickel sheet, copper sheet, nickel-plated steel strip, nickel-aluminum composite strip, nickel-copper composite strip and other precision stamping parts. Products are widely used in protective board, mobile power battery, electric vehicle battery, power tool battery, energy storage street lamp battery, new energy automobile power battery and other industries. We also produce and sell electronic components preform solder, lead-tin-silver, tin-silver copper, lead-tin, silver-copper, pure tin strips and other high-purity solder pads; and solder paste, lead-free solder paste, which are suitable for dispensing, screen printing, pin-transfer and other processes.

Since foundation, we have won the favor and recognition of the majority of customers relying on the excellent product quality and efficient professional, punctual and trustworthy service system. We have also established long-term good cooperative relationships with some high-tech new energy battery enterprises to supply high-quality and reliable products. We have been adhering to the business philosophy of Quality First, Efficiency and Specialization, Achieving Win-win, and always taking High-end Quality as the center, Customer Service as the direction and Mutual Benefit and Win-win as the principle to provide high-quality products and services for customers. Long distances cannot separate true friends sharing one heart.

Dingfan has been demonstrating its competency in supplying the world’s leading technology companies with quality stamping parts that conform to tight tolerances and are dimensionally stable. Having an advantaged pricing strategy as its competitive edge, Dingfan is honorably recognized by its major customers in their critical supply chains.