Nickel (Ni): is the core component in the positive electrode materials of ternary lithium batteries (such as NCM: nickel-cobalt manganese, NCA: nickel-cobalt aluminum). Increasing nickel content can significantly increase the battery's energy density (storage more power), thereby extending the range of the electric vehicle. It is the key direction of the current research and development of high-energy density batteries. Cobalt (Co): It mainly plays a role in stabilizing the layered structure in ternary materials, improves the structural stability and cycle life of the material (the battery can last longer), and improves the rate performance (charge and discharge speed).

Nickel (Ni): is one of the most widely used electroplating metals. Nickel plating provides excellent corrosion resistance, wear resistance, gloss and solderability. Widely used in automotive parts, bathroom hardware, electronic product shells, fasteners, etc., as decorative coatings or functional protective layers (often as the bottom layer of chrome coating). Cobalt (Co): is often added to nickel plating solution as alloy elements to improve the performance of nickel plating: improve hardness and wear resistance: used in occasions where high wear resistance is required, such as engine parts and molds. Improve high-temperature performance: Keep the coating stable at high temperatures. Get a specific look: Sometimes used to get black or dark plating (such as gun color)

Nickel (Ni): It is an extremely important hydrogenation catalyst. Petroleum refining: used in hydrodesulfurization, hydrocracking and other processes. Synthesis of ammonia: a key catalyst for the synthesis of ammonia by traditional Haber method. Organic synthesis: Selective hydrogenation reduction of a variety of organic compounds. Cobalt (Co): It is also an important catalytic element. Fischer-Tropsch synthesis: the key catalyst for converting synthesis gas into liquid fuels (diesel, paraffin, etc.) and chemicals (cobalt-based catalysts have high activity and good product selectivity). Oxidation catalyst: used in the production of chemical products such as terephthalic acid. Desulfurization catalyst: application in petroleum refining

Nickel (Ni): Magnetic material: Nickel-ferroalloy is an important soft magnetic material used in transformer cores, magnetic shields, sensors, etc. Resistance material: Nickel-chromium alloy is a commonly used resistive wire/film material. Cobalt (Co): Magnetic Material: Cobalt is a key component of permanent magnet materials (such as samarium-cobalt SmCo, aluminum-ni-cobalt AlNiCo) and soft magnetic materials (such as cobalt ferroalloys), and is used in high-performance motors, generators, sensors, hard drives, speakers, etc.

Nickel (Ni): It is mainly used as a colorant in glaze. Depending on the glaze composition and firing atmosphere (oxidation or reduction), rich tones such as brown, gray, yellow-brown, and blue-gray can be produced. It can also be used to prepare black glazes (often combined with other oxides such as iron and cobalt). Cobalt (Co): is the most famous and strongest blue colorant among ceramic glazes. From ancient times to the present, it has been a key raw material for producing blue-colored ceramics such as blue-white porcelain, cobalt-blue glaze, and Tianmu glaze. Small amount but significant hair color effect. Sometimes it is also used to prepare black glaze (combined with iron, manganese, chromium, etc.) or purple glaze.

Ni: Electrode and Connector: Used as internal electrodes, lead frames, connector terminals for electronic components (such as multi-layer ceramic capacitor MLCC), because of their good conductivity and solderability. Cobalt (Co): Semiconductor Interconnection: Cobalt has been used in advanced semiconductor processes to replace the barrier layer/seed layer of copper interconnection to improve electromigration reliability.