Acting as a bridge between external electronic components and internal Li-ion transport, current collectors contribute to over 90% of the electrical conductivity and approximately 90% of the mechanical strength of lithium-ion battery (LiB) electrodes. Therefore, choosing the right anode and cathode battery foil materials is crucial for battery manufacturers seeking to maximize battery performance.
Why choose Chalco ket qua truc tiep bong da for li-ion batteries?
Chalco is a leading supplier of battery grade foil materials for Li-ion energy storage technology in China. Our advanced rolling and alloy manufacturing processes enable us to supply uniform thickness, high strength ket qua truc tiep bong da materials to lithium-ion battery manufacturers worldwide.
Chalco ket qua truc tiep bong da specifications for li-ion batteries
| Category | Usage code | Alloy | Temper | Dimensions/mm | ||||
| Power storage category | Digital category | Thickness | Width | Typical inner diameter of pipe core | Outer diameter of the coil | |||
| Light foil | BP | BC | 1070 1060 1050 1235 1C30 1100 8011 8A21 | H18 | 0.008-0.020 | 0-1600.0 | 75.0 76.2 150.0 152.4 | Negotiation between supply and demand |
| Coated foil | RP | RC | ||||||
| Glossy foil: A collective term for single-sided glossy ket qua truc tiep bong da and double-sided glossy ket qua truc tiep bong da. Coated foil: ket qua truc tiep bong da with a coated surface. | ||||||||
Chalco ket qua truc tiep bong da chemical composition for li-ion batteries
| Elements | Composition% | |||||||
| 1235 | 1050 | 1060 | 1070 | 1100 | 1C30 | 8A21 | 8011 | |
| Si | 0-0.65 | 0-0.25 | 0-0.25 | 0-0.2 | 0-1.0 | 0.05-0.15 | 0-0.15 | 0.50-0.90 |
| Fe | 0-0.65 | 0-0.4 | 0-0.35 | 0-0.25 | 0-1.0 | 0.3-0.5 | 1.0-1.6 | 0.60-1 |
| Cu | 0-0.05 | 0-0.05 | 0-0.05 | 0-0.04 | 0.05-0.2 | 0.05-0.15 | 0-0.05 | 0-0.10 |
| Mn | 0-0.05 | 0-0.05 | 0-0.03 | 0-0.03 | 0-0.05 | 0-0.01 | - | 0-0.20 |
| Mg | 0-0.05 | 0-0.05 | 0-0.03 | 0-0.03 | 0-0.1 | 0-0.01 | - | 0-0.05 |
| Cr | - | - | - | - | - | - | - | 0.05 |
| Zn | 0-0.1 | 0-0.05 | 0-0.05 | 0-0.04 | 0-0.1 | 0-0.01 | - | 0-0.10 |
| Ti | 0-0.06 | 0-0.03 | 0-0.03 | 0-0.03 | 0-0.1 | 0-0.04 | 0.01-0.03 | 0-0.08 |
| V | 0-0.05 | 0-0.05 | 0-0.05 | 0-0.05 | - | - | - | - |
| Al | Remainder | Remainder | Remainder | Remainder | Remainder | Remainder | Remainder | Remainder |
Mechanical properties of Chalco ket qua truc tiep bong da for lithium-ion batteries
| Alloy | Temper | Thickness/mm | Room temperature tensile testing results | ||||
| Tensile strength (Rm) MPa | elongation after break (A100) % | elongation after break (A50) % | |||||
| Single side light ket qua truc tiep bong da | Double side light ket qua truc tiep bong da | Single side light ket qua truc tiep bong da | Double side light ket qua truc tiep bong da | ||||
| 1070 | H18 | ≤0.010 | ≥185 | - | ≥2.0 | - | - |
| 0.010-0.013 | |||||||
| 0.013-0.015 | ≥180 | ||||||
| 0.015-0.020 | ≥175 | ||||||
| 1060. 1050 | ≤0.010 | - | - | - | - | - | |
| 0.010-0.013 | ≥190 | ≥2.5 | ≥3.0 | ||||
| 1060, 1050 | 0.013-0.015 | ||||||
| 0.015-0.020 | ≥185 | ≥2.0 | |||||
| 1235 | ≤0.010 | - | - | - | - | - | |
| 0.010-0.013 | ≥180 | ≥2.0 | |||||
| 0.013-0.015 | ≥185 | ||||||
| 0.015-0.020 | ≥175 | ||||||
| 1C30 | ≤0.010 | ≥220 | ≥2.0 | - | - | - | |
| 0.010-0.013 | ≥230 | - | ≥2.0 | ≥2.0 | |||
| 0.013-0.015 | ≥225 | ≥2.0 | ≥2.0 | ≥2.5 | - | ||
| 0.015-0.020 | ≥220 | ≥2.5 | - | - | ≥3.0 | ||
| 1100 | ≤0.010 | ≥230 | ≥1.0 | ≥2.0 | - | ≥3.0 | |
| 0.010-0.013 | - | ||||||
| 0.013-0.015 | ≥220 | - | |||||
| 0.015-0.020 | ≥2.0 | ||||||
| 8011 | ≤0.010 | ≥180 | ≥1.0 | ≥1.5 | - | - | |
| 0.010-0.013 | - | ≥2.0 | |||||
| 0.013-0.015 | |||||||
| 0.015-0.020 | - | - | |||||
| 8A21 | ≤0.010 | ||||||
| 0.010-0.013 | |||||||
| 0.013-0.015 | ≥165 | ≥4.0 | |||||
| 8A21 | 0.015-0.020 | - | - | - | - | - | |
Dimensional deviation of Chalco ket qua truc tiep bong da for lithium-ion batterys
Thickness deviation
| Thickness (T) tolerance /mm | ||
| Ultra high precision level | High precision level | Normal level |
| ±3%T | ±4%T | ±5%T |
Surface density deviation of plain and coated foil substrates
| Surface density (A) allowable deviation / g/m2 | ||
| Ultra high precision level | High precision level | Normal level |
| ±3%A | ±4%A | ±5%A |
Coating surface density deviation
| Usage code | Coating surface density / g/m2 | Allowable deviation of coating surface density / g/m2 | |
| High precision level | Normal level | ||
| RP, RC | 0.30-2.00 | 0.05 | 0.1 |
Width deviation
| Usage code | Width deviation / mm | |
| High precision level | Normal level | |
| BC, BP | ±0.5 | ±1.0 |
| RC, RP | ±0.5 | - |
Burrs on the end face of Chalco ket qua truc tiep bong da for lithium-ion batteries
| Edge Burr Size (not more than) | ||
| Ultra high precision level | High precision level | Normal level |
| 50μm | 100μm | 150μm |
Wave height of Chalco ket qua truc tiep bong da for li-ion batteries
| Usage code | Axis distance /m | Wave height (h) /mm | ||
| Ultra high precision level | High precision level | Normal level | ||
| BC, BP | 1 | ≤2.0 | ≤3.0 | ≤5.0 |
| BC, BP, RC, RP | 1.5 or 2.0 | ≤4.0 | ≤8.0 | ≤10.0 |
l – ket qua truc tiep bong da h – wave height
Number of pinholes in Chalco ket qua truc tiep bong da for lithium-ion batteries
| Thickness/mm | The number of pinholes in any 1 m² (not greater than) | ||
| Ultra high precision level | High precision level | Normal level | |
| ≤0.010 | 15 | 20 | 30 |
| 0.010-0.013 | 6 | 10 | 15 |
| 0.013-0.015 | 3 | 5 | 10 |
| 0.015-0.020 | 0 | 3 | |
Advantages of Chalco ket qua truc tiep bong da for li-ion batteries
Uniform and controllable thickness:Chalco ket qua truc tiep bong da rolling mill equipment is equipped with advanced automatic thickness control system and automatic shape control system to achieve precise control of shape and thickness.
Quality assurance:Chalco selects ket qua truc tiep bong da blanks, strictly controls the hydrogen content of the blanks, the amount of non-metallic slag and particle size, and guarantees product quality from raw materials.
High cleanliness:Chalco adopts advanced online degreasing technology to ensure the cleanliness of the ket qua truc tiep bong da on the basis of ensuring the mechanical strength of the ket qua truc tiep bong da.
Where is ket qua truc tiep bong da used in lithium-ion batteries？
The positive electrode is lithium iron phosphate coated on ket qua truc tiep bong da, but lithium iron phosphate is preferred. The negative electrode is copper foil coated with graphite or lithium titanate. There is a separator between the positive and negative foils, which are wound together. Put the wound positive and negative sheets (including the separator) into the battery case together, inject the electrolyte, and then vacuum seal to complete the processing of a single battery.
Product classification and application of Chalco ket qua truc tiep bong da for lithium-ion batteries
Power lithium ion battery foil:Primarily used in EVs and HEVs, lithium-ion batteries are the main energy storage devices for EVs and HEVs. Lithium-ion battery foil, as a key component of the battery, is used to manufacture the positive and negative electrodes of the battery.
Consumer battery foil:Consumer lithium-ion battery foils are mainly used in consumer fields such as portable electronic devices, smart wearable devices, electric personal vehicles and home electronics. They provide high energy density, thin, reliable battery-powered solutions for portability and long-term use.
Energy storage battery foil:Energy storage lithium-ion battery foils are mainly used in power energy storage systems, renewable energy and industrial fields to provide reliable energy storage solutions. They play an important role in balancing energy supply and demand, improving energy efficiency and supporting sustainable energy development.
How to choose high quality battery ket qua truc tiep bong da?
Quality requirements
- The surface of the ket qua truc tiep bong da is uniform in color, clean, and flat, without obvious roll marks, pitting, pinholes, and corrosion marks.
- There are no rolling defects such as creases, mottling, bright lines, etc. on the surface of the ket qua truc tiep bong da.
- There is no color difference on the surface of the ket qua truc tiep bong da.
- No oil on the surface, no serious oil odor, and no visible oil spots.
- Surface tension, dyne pen test is not less than 32 dyne.
Appearance requirements
- The ket qua truc tiep bong da coil is wound tightly, the end surface is flat and clean, and the edge is smooth.
- The staggered layer of ket qua truc tiep bong da shall not exceed ±1.0mm.
- The width of the ket qua truc tiep bong da roll tube core is greater than or equal to the foil width, and generally the length of the two ends of the tube core does not exceed the foil width of 5mm.
- The ket qua truc tiep bong da should be wrapped around the center of the tube core.
- The joint part has clear joint marks on the two ends of the aluminum coil.
FAQ
Q1: Are you factory or trading company?
A1: Industry and trading company.
Q2: Wonder if you accept small orders?
A2: Do not worry. Feel free to contact us .in order to get more orders and give our clients more convener, we accept small order.
Q3: Can you send products to my country?
A3: Sure, we can. If you do not have your own ship forwarder, we can help you.
Q4: When can I get the quotation?
A4: We usually quote you within 24 hours after we get your inquiry. If you are very
urgent to get the quotation. Please call us or tell us in your mail, so that we could
regard your inquiry priority.
Q5: Do you have after sale service?
A5: Yes. Any quality problem occurs within one year, pls take photos, we will be responsible.
Q6: How do you guarantee the quality of the product?
A6: Aluminum imports Achenbach Buschhutten wide rolling mill, OPTIFOILR slitting machine and coiler. With those advanced equipment and technology, we can ensure best product for you.