Deionized water serves as the solvent for dissolving water-based adhesives such as CMC/SBR. In the preparation of the negative electrode of lithium metal batteries, by dissolving the adhesives, the strong adhesion between the negative electrode components (lithium metal/lithium-based materials, conductive agents) and the current collector can be achieved. By regulating the slurry, the uniformity of coating and the quality of electrode formation can be ensured. After drying, the porous structure formed can buffer the volume expansion of lithium metal and meet the requirements for electrolyte infiltration/filling, which is a key process medium for the stability of the lithium battery negative electrode structure and the long-term electrochemical performance of the battery.

Ultra-thin Series: Offers specifications such as 4.5μm and 6μm, enhancing the energy density of the battery. High strength and toughness: Tensile strength > 300MPa, elongation > 5%, ensuring the processing yield of ultra-thin copper foil during coating, cutting and winding processes. High uniformity: Thickness tolerance is strictly controlled within ±2μm, and the unit area mass accuracy is ±1g/㎡, guaranteeing the consistency of the battery electrode sheet. Excellent surface properties: Uses double-sided smooth copper foil, with controllable surface roughness (Ra < 0.35μm), optimizing the adhesion of active substances and the stability of the battery interface. High chemical stability: Through special surface passivation treatment, it has good antioxidant and resistance to electrolyte corrosion properties.

Thickness: The mainstream thickness is 10-20 micrometers (μm). Some enterprises have achieved mass production at 8 μm. In the future, it may be reduced to 6 μm. The thickness deviation should be controlled within ±2% to ensure battery consistency. Mechanical properties: Tensile strength ≥ 180 MPa. In some scenarios, it requires ≥ 200 MPa or even 300 MPa, while maintaining ≥ 3% elongation to meet the requirements of high compact density.

Carbon-coated aluminum foil.This is a key advanced material that introduces a carbon coating layer on the positive electrode current collector aluminum foil. Its purpose is to address the conductive and adhesive bottlenecks on the positive electrode side, thereby significantly enhancing the power density, cycle life, and safety of lithium batteries. It complements the carbon-coated copper foil and jointly drives the boundaries of lithium battery performance.

Carbon graphite plate electrode of the dual-coated electrode material for the negative electrode of the battery.

Lithium metal ingots are blocky raw materials made from high-purity metallic lithium. As the least dense and most electrochemically active silvery-white metal in nature, it is mainly used in aerospace alloys, the nuclear industry, and as a core material for solid-state batteries and lithium-sulfur batteries.

Copper-lithium composite strips are a novel type of battery negative electrode current collector material, mainly composed of metallic copper and lithium strips through mechanical processing or rolling. It can directly provide lithium to the battery, and features improved lithium-ion deposition, increased battery energy density, and longer cycle life.

The PET positive electrode composite aluminum foil is a new type of composite current collector material based on polyethylene terephthalate (PET) as the substrate. It deposits a metal aluminum layer on both the upper and lower surfaces of the substrate through vacuum evaporation technology, forming a "aluminum-PET-aluminum" sandwich structure. It is specifically designed for the positive electrode of lithium-ion batteries.

The PET negative electrode composite copper foil is a composite current collector material made by using polyethylene terephthalate (PET) film as the base material and depositing metal copper layers on both sides. It is specifically designed for the negative electrode of lithium-ion batteries.

The positive electrode sheet is one of the core components of a battery. Together with the negative electrode sheet, it forms the electrochemical reaction area of the battery, responsible for providing and receiving electrons during the charging and discharging process of the battery, and achieving the conversion between chemical energy and electrical energy.

The battery electrode sheet is the core component of a battery, playing a crucial role in conducting electricity and facilitating electrochemical reactions. It consists of a positive electrode sheet and a negative electrode sheet, which are separated and connected by an electrolyte to form the electrochemical reaction area of the battery, enabling the conversion between chemical energy and electrical energy.

By adopting the bidirectional synchronous stretching technology, the mechanical strength is high and balanced, with uniform pore structure and good consistency. Produced by the blow molding method (optimized relative to the extrusion method), it has a unidirectional microporous structure and excellent thermal closure performance. Coated with nano-alumina/bombshell, etc., it significantly improves heat resistance, dimensional stability and electrolyte wettability. The coating has strong adhesion to the electrode sheet, which can reduce the defective rate of the cell during encapsulation and improve the interface contact. Using a mixed coating of PVDF/aramid and ceramics, it combines high heat resistance, excellent adhesion and cost efficiency.