Lithium ion battery manganese cobalt lithium oxide anode material and preparation method thereof

A battery manganese cobalt lithium, positive electrode material technology, applied in the direction of battery electrodes, secondary batteries, electrochemical generators, etc., can solve the problems of not being able to fully mix metal ions, easily introducing impurity ions, and affecting the electrochemical performance of positive electrode materials , achieve excellent electrochemical performance, improve purity, and be easy to control
CN103715411AInactive Publication Date: 2014-04-09FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
Publication Date
2014-04-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a lithium ion battery manganese cobalt lithium oxide anode material and a preparation method thereof. The chemical formula of the anode material is Li(3+x) / 3Mn2x / 3Col-xO2, wherein the x is greater than or equal to 0.1 and is less than or equal to 0.9. The lithium ion battery manganese cobalt lithium oxide anode material disclosed by the invention is prepared by adopting a sol-gel burning method. The preparation method disclosed by the invention has the advantages that the operation is simple, the production cost is low, the synthesis period is short, the repeatability is high and the like, the impurity ions are not introduced, the product purity is greatly improved, and lithium ions and transition metal ions are uniformly mixed under the assistance of mannitol; the method is widely applied in the synthesis of the lithium ion battery oxide anode material.
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Description

technical field

[0001] The invention relates to a manganese-cobalt-lithium oxide cathode material in the field of lithium-ion batteries and a preparation method thereof. Background technique

[0002] With the intensification of energy crisis and environmental problems, it is particularly important to develop new clean energy storage devices and environmentally friendly power devices. With the advantages of high voltage, high capacity, long cycle life, safety and environmental protection, lithium-ion batteries have great application prospects in the field of energy storage and power devices. As the most important component of lithium-ion batteries, cathode materials determine the electrochemical performance of lithium batteries. Therefore, the research and development of cathode materials has received extensive attention. Currently, LiCoO 2 It is the most widely used cathode material, but its reversible capacity is only 140mAh / g, which is far from meeting the high-capacity...

Claims

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