Electrochemical lithium storage composite electrode and preparation method thereof
A composite electrode, electrochemical technology, applied in battery electrodes, electrochemical generators, nanotechnology for materials and surface science, etc.
Inactive Publication Date: 2019-10-18
TIANNENG BATTERY GROUP
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Problems solved by technology
However, so far this use of Bi 2 S 3 -MoS 2 / Graphene composite nanomaterials are composite electrodes for
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The invention discloses an electrochemical lithium storage composite electrode and a preparation method thereof; the composite electrode adopts a MoS2-Bi2S3/graphene composite nano material as an active substance for electrochemical lithium storage. The preparation method comprises the following steps of under the condition of existence of graphene oxide, carrying out a hydrothermal condition on amixed solution of Bi(NO3)3, Na2MoO4 and L-cysteine to prepare a Bi2S3-MoS2/graphene composite nano material, and then enabling the obtained Bi2S3-MoS2/graphene composite nano material, acetylene black and polyvinylidene fluoride to form uniform slurry, and enabling the slurry to be coated on a copper foil to be rolled to obtain the electrochemical lithium storage composite electrode. The composite electrode has the advantages of high electrochemical lithium storage reversible specific capacity, stable cycling performance, high rate charge and discharge performance and the like.
Description
technical field [0001] The invention relates to an electrochemical lithium storage composite electrode and a preparation method thereof, in particular to using Bi 2 S 3 -MoS 2 The invention relates to an electrochemical lithium-storage composite electrode and a preparation method thereof as an electrochemical lithium-storage active material using a graphene composite nanomaterial, and belongs to the technical field of lithium ion electrode materials and their application in electrochemical lithium-storage composite electrodes. Background technique [0002] Electrode materials for high-performance electrochemical lithium storage and their application in electrochemical lithium storage electrodes are of great significance for the development of high-performance lithium-ion batteries. MoS 2 Nanomaterials have high electrochemical lithium storage capacity (its theoretical capacity is 670mAh / g), and have broad application prospects in high-performance lithium-ion batteries. H...
Claims
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Login to view more IPC IPC(8): H01M4/36H01M4/58H01M4/62H01M4/136H01M4/1397B82Y30/00H01M10/0525H01M10/054
CPCB82Y30/00H01M4/136H01M4/1397H01M4/366H01M4/5815H01M4/625H01M10/0525H01M10/054Y02E60/10
Inventor 李丹高根芳宋文龙陈卫祥施璐李靖田庆山甄爱钢罗秋月陈羽婷
Owner TIANNENG BATTERY GROUP
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