Advantages and disadvantages of lithium manganese oxide batteries

Introduction Advantages and disadvantages of lithium manganate batteries There are three types of lithium manganate: 1. Layered lithium manganate LiMnO2, with a theoretical capacity of 285 mA h/g and a voltage platform of 4 V. The structure layered is difficult to syn

Advantages and disadvantages of lithium manganese oxide batteries

There are three types of lithium manganate: 1. Layered lithium manganate LiMnO2, with a theoretical capacity of 285 mA h/g and a voltage platform of 4V. The layered structure is difficult to synthesize and unstable. It is easy to generate Li2Mn2O4 spinel structure, resulting in voltage platform drop, poor stability, and irreversible capacitance attenuation.

2 High voltage spinel lithium manganate LiMn2O4, theoretical capacity 148 mA h/g, voltage platform 4.15. High temperature performance is poor and capacity attenuation is significant above 55°C. It is also easy to generate Li2Mn2O4 spinel structure, which may cause voltage platform drop, poor stability, irreversible capacitance attenuation, etc. This is the type of lithium manganate currently used in industry.

Lithium manganate 3 spinels Li2Mn2O4 has alow voltage (3V), low capacity and poor circulation. We are studying how to avoid this kind of thing.

Ternary: In order to solve the defects of layered lithium manganate, the ternary material LiNiCoMnO2 (LiNiCoAlO2), in which Ni and Co (Al) replaced manganese, was invented by doping metallic elements , taking into account both nickel and nickel. The high capacity and high voltage of lithium acid oxide, the high voltage and high safety of lithium manganate, and the good cyclability of lithium cobalt oxide, simultaneously overcome the disadvantages of difficulty and instability in the synthesis of lithium manganate and lithium nickelate. , and the high cost of lithium cobalt oxide, the common cathode materials. The theoretical capacity is 280 mA h/g and the voltage is 2.7 ~ 4.2. The actual capacity is now around 160 mA h/g.

Over the next few years, the teThe current market will be virtually eliminated in three years, with nickel and NCA leading the way. It is estimated that the entire ternary battery will be eliminated in 10 years and a new battery system will replace the ternary battery.

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