lithium nickel cobalt manganate (NCM523)-Lithium-ion battery ternary cathode material

The ternary cathode materials contain nickel (Ni), cobalt (Co) and manganese (Mn). The main valence states of the three elements are + 2, + 3 and + 4. Among the three elements, nickel and cobalt are active metals, while Mn is inactive. Generally speaking, the higher the content of active metal, the larger the battery capacity. However, if the content of Ni is too high, it will cause Ni2 + to occupy the position of Li +, and increase the battery capacity The results show that Co can inhibit the mixed discharge of cations and stabilize the layered structure of the material; Mn, as an inactive metal, does not participate in the electrochemical reaction and mainly plays the role of stabilizing the reaction, improving the safety and reducing the cost, but the excessive manganese content will destroy the layered structure of the material and reduce the specific capacity of the material.
The ratio of Ni, Co and Mn in the ternary cathode material can be adjusted in a certain range, and its performance will change with the different ratio of Ni, Co and Mn. The ternary cathode material can be expressed as linixcoymnzo2, where x + y + Z = 1. According to the different molar ratio (x ∶ y ∶ Z ratio) of the three elements, they are called different systems. The system with the molar ratio of 5 ∶ 2 ∶ 3 is called 523 system.
523 type ternary material is the largest amount of ternary material at present, because it has high specific capacity and thermal stability, and the maturity and stability of the process are constantly improving, and its market share is rapidly expanding. 523 ternary material pursues high volume, high specific capacity (high compaction density), followed by the balance between cycle performance, rate performance, thermal stability and self discharge. As a power battery, it can greatly improve the endurance of electric tools.

Product Details

Aft-5s is a high rate ternary cathode material, which is suitable for high rate market such as UAV / model aircraft / e-cigarette, and has better storage and high temperature / high rate cycling performance, lower Li / Ni miscibility, better electron / ion conductivity, lower initial impedance, better discharge rate performance and cycling performance.

SEM

Matters needing attention

Vacuum sealed packaging, placed in a cool and dry place, shelf life of one year, storage environment clean, normal temperature, cool and dry; use immediately after opening the packaging bag, can not be used immediately, sealed after storage, to prevent moisture absorption.