-What is the general preparation method for lithium battery cathode materials

What is the general preparation method for lithium battery cathode materials
author:enerbyte source:本站 click145 Release date: 2023-12-12 09:27:59
abstract:
1. Solid phase method Generally, lithium salts such as lithium carbonate are ground and mixed with cobalt or nickel compounds for sintering reaction. The advantage of this method is that the process flow is simple, the raw materials are easily available, and it belongs to th...

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1. Solid phase method

Generally, lithium salts such as lithium carbonate are ground and mixed with cobalt or nickel compounds for sintering reaction. The advantage of this method is that the process flow is simple, the raw materials are easily available, and it belongs to the method widely researched, developed, and produced in the early stage of lithium-ion battery development. The technology abroad is relatively mature; The disadvantages are limited capacitance of the positive electrode material produced, poor uniformity of raw material mixing, poor performance stability of the prepared material, and poor quality consistency between batches.

2. Complex method

The complex method uses organic complexes to prepare precursor complexes containing lithium ions and cobalt or vanadium ions, followed by sintering. The advantages of this method are molecular scale mixing, good material uniformity and performance stability, and higher capacitance of the positive electrode material compared to the solid-state method. It has been tested as an industrial method for lithium-ion batteries abroad, but the technology is not mature, and there are currently few reports in China.

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