Preparation method of electrode material, electrode material, electrode and lithium ion battery
A technology of electrode materials and composite materials, applied in the field of batteries, can solve the problems of low electrode conductivity, etc., and achieve the effects of high ionic conductivity, easy mass production, and enhanced ionic conductivity.
Active Publication Date: 2020-06-26
SHENZHEN HYNETECH CO LTD
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The invention discloses a preparation method of an electrode material, the corresponding electrode material, an electrode and a lithium ion battery. The preparation method comprises the following steps of mixing an electrode active substance with a solid electrolyte or a precursor of the solid electrolyte, and crushing to obtain a composite material; and mixing the composite material with a conductive agent. According to the preparation method, by firstly, mixing the electrode active substance with the solid electrolyte or the precursor of the solid electrolyte to enable the electrode active substance and the solid electrolyte or the precursor of the solid electrolyte to contact fully, the ionic conductivity of the electrode active substance is effectively improved, and then mixing the obtained composite material with the conductive agent to form a conductive network, the conductivity among the composite material particles is improved. The electrode material prepared by the method is clear in gradation and has higher ionic conductivity, so that an electrode and a lithium ion battery are prepared from the material, and the cycle performance of the lithium ion battery is improved.
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Property | Measurement | Unit |
Median particle size | 5.0 | µm |
Median particle size | 8.0 | µm |
Median particle size | 6.0 | µm |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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