Preparation method and application of novel lithium ion battery negative electrode material carbonized grape seed

Abstract

The invention discloses a preparation method and application of a novel lithium ion battery negative electrode material carbonized grape seed. The preparation method comprises the following steps: drying grape seeds, grinding into powder, soaking in an activator solution, and magnetically stirring the solution at 80 DEG C for 4 hours; and filtering the solution, carrying out vacuum drying on the soaked grape seed powder at 80 DEG C for 12 hours, putting the dried grape seed powder into a tubular furnace, calcining the grape seed powder at 700-900 DEG C for 2-6 hours in an argon atmosphere, cooling the grape seed powder to room temperature, sequentially carrying out centrifugal washing with hydrochloric acid and distilled water to neutrality, carrying out vacuum drying, and grinding the grape seed powder to obtain the target product carbonized grape seeds. The carbonized grape seeds are used as the negative electrode material of the lithium ion battery, so that the raw materials are easy to obtain and are environment-friendly; secondly, the carbonized grape seeds have a porous structure, so that the reaction active sites are increased, the conductivity of the material can be improved, and the electrochemical performance of the material is improved.

Description

technical field [0001] The invention relates to the technical field of lithium ion batteries, in particular to a preparation method and application of carbonized grape seeds, a novel lithium ion battery negative electrode material. Background technique [0002] Since the lithium-ion battery was introduced to the market in the 1990s, it has received unanimous praise from the battery industry and users for its excellent electrochemical performance. At present, lithium-ion batteries have occupied a dominant position in the field of mobile electronic terminal equipment such as notebook computers, mobile phones, and cameras, and have great application prospects and commercial value in new energy fields such as power vehicles. [0003] Electrode active materials are the core of batteries and play a decisive role in battery performance. Carbon materials have been considered as the most commercially valuable anode materials in LIBs. The current carbon material used for the negativ...

AI Technical Summary

Problems solved by technology

However, the non-renewability and high cost of carbon precursors and complex fabrication techniques limit their large-scale application

At present, there are no reports on the preparation of three-dimensional porous carbon materials from grape seeds and their application in the field of lithium-ion battery anodes.

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