A kind of lithium carbon composite material and preparation method thereof

Abstract

The invention discloses a lithium-carbon composite material and a preparation method thereof, comprising the following steps: S1, preparing a micron lithium powder mixed liquid, S2, adjusting the solid content of lithium powder, S3, preparing a lithium-carbon mixed liquid, S4, preparing lithium Carbon composite material, the lithium carbon composite material prepared by the organic solvent liquid phase buoyancy dispersion process and the organic solvent vapor phase sedimentation coating process is the negative electrode material of the primary lithium manganese battery, which solves the technical problems existing in the practical application of lithium metal , especially solves the safety risk problem caused by the activity of metal lithium in the preparation process of the primary lithium manganese battery, effectively reduces the processing cost, and improves its electrical properties such as discharge current rate and energy density.

Description

Technical field: [0001] The invention relates to the technical field of primary lithium batteries, in particular to a lithium-carbon composite material and a preparation method thereof. Background technique: [0002] Primary lithium-manganese batteries are widely used in the market because of their advantages such as stable voltage platform, long storage time, and wide temperature range. At present, the negative electrode preparation method of traditional lithium-manganese batteries is metal lithium strip and electrode. Ear welding, due to the very active characteristics of lithium metal, makes it very demanding on the temperature and humidity control of the process environment, making it difficult to improve product quality, and at the same time increases the raw material cost and negative electrode processing cost of lithium metal. [0003] Based on this, in order to make up for the deficiencies of the prior art, the present invention provides a lithium-carbon composite ma...

AI Technical Summary

Problems solved by technology

[0002] Primary lithium-manganese batteries are widely used in the market because of their advantages such as stable voltage platform, long storage time, and wide temperature range. At present, the negative electrode preparation method of traditional lithium-manganese batteries is metal lithium strip and electrode. Ear welding, due to the very active characteristics of lithium metal, makes it very demanding on the temperature and humidity control of the process environment, making it difficult to improve product quality, and at the same time increases the raw material cost and negative electrode processing cost of lithium metal

Images