Ni200 and Ni201 are two grades of pure nickel, distinguished primarily by their slight differences in chemical composition and mechanical properties. Ni200 is a commercially pure nickel with a minimum nickel content of 99.6%, while Ni201 has a slightly lower carbon content, making it more resistant to embrittlement at higher temperatures. Both grades exhibit excellent corrosion resistance, high thermal and electrical conductivity, and superior mechanical strength. These properties are crucial in battery applications where consistent performance and longevity are required.

The primary application of Ni200 and Ni201 pure nickel strips in lithium-ion batteries is for making interconnections between individual cells. In battery packs for 18650, 32650, 26650, and 21700 cells, these strips are used to create a reliable and conductive pathway for the flow of electric current. The high conductivity of pure nickel ensures minimal energy loss during charge and discharge cycles, which is critical for maintaining the efficiency and capacity of the battery pack. Furthermore, the corrosion resistance of nickel prevents degradation over time, ensuring a long operational life for the battery.

Using Ni200 and Ni201 pure nickel strips in battery manufacturing offers several benefits. Firstly, their excellent electrical conductivity reduces the internal resistance of the battery pack, enhancing overall performance. Secondly, their thermal conductivity helps in managing the heat generated during charging and discharging, which is vital for maintaining battery safety and efficiency. Additionally, the mechanical strength of these strips ensures that the connections between cells remain intact under physical stresses, such as vibrations and impacts, which are common in many battery applications.

Ni200 and Ni201 pure nickel strips are indispensable components in the assembly of lithium-ion batteries. Their superior electrical and thermal conductivity, combined with excellent corrosion resistance and mechanical strength, make them ideal for creating reliable interconnections in battery packs. These properties not only enhance the performance and efficiency of batteries but also contribute to their safety and longevity. As the demand for high-performance lithium-ion batteries continues to grow, the use of high-quality materials like Ni200 and Ni201 pure nickel strips will remain crucial in meeting the stringent requirements of modern battery applications.