Preparation method and preparation container of boron alkene and graphene composite aerogel electrode plate

Abstract

The invention provides a preparation method and a preparation container of a boron alkene and graphene composite aerogel electrode plate. The preparation method comprises the following steps: preparing boron alkene powder; and preparing the boron alkene and graphene composite aerogel electrode plate by using the boron alkene powder and the graphene oxide solution. The problem of structure instability after boron alkene loses metal substrate support is solved, the properties of boron alkene are fully utilized, boron alkene and graphene are combined to form a heterojunction, and the boron alkene / graphene heterojunction aerogel electrode plate is prepared and applied to a lithium ion battery negative electrode. The prepared aerogel electrode plate has excellent conductivity, an additional collector electrode is not needed in a battery, and the synthesized boron-alkene / graphene aerogel electrode plate has large specific capacity which is improved by 39% compared with a graphene skeleton without addition of boron-alkene. And meanwhile, the aerogel electrode plate is relatively good in high-rate charge-discharge performance.

Description

technical field [0001] The invention relates to the technical field of lithium ion batteries, in particular to a preparation method and a preparation container of a boronene and graphene composite airgel electrode sheet. Background technique [0002] Lithium-ion battery is a typical energy storage device that can convert chemical energy and electrical energy. It has attracted much attention because of its high operating voltage and low weight. The achievable energy density is much higher than other battery technologies. The current graphite anode material The performance is gradually approaching the theoretical value, and the industrialization of new negative electrode materials is ready to go. One of the future development directions of lithium-ion batteries is to improve the performance of negative electrode materials. Due to its unique structure and electronic properties, boronene has become the latest very promising two-dimensional material. Due to the small atomic mass ...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a preparation method and a preparation container of a boronene and graphene composite airgel electrode sheet, which are used to solve the problem that the boronene structure in the prior art is mostly in a metallic state and the boronene structure detached from the metal substrate is unstable and extremely large. Restricted the defects of boronene in the negative electrode of lithium-ion batteries, prepared boronene / graphene composite airgel, applied to the negative electrode of lithium-ion batteries, and realized the large-scale application of boronene

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