Tin oxide/alumina doped carbon composite material and preparation method thereof

A carbon composite material, tin dioxide technology, applied in the field of electrochemistry, can solve the problems of poor cycle performance and battery capacity depletion, achieve good stability, excellent rate performance, and prevent damage.
CN110336035AActive Publication Date: 2019-10-15GUANGDONG UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GUANGDONG UNIV OF TECH
Publication Date
2019-10-15

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Abstract

The invention belongs to the technical field of electrochemistry, in particular to a tin oxide / alumina doped carbon composite material and a preparation method thereof. The invention provides a preparation method of a tin dioxide / alumina doped carbon composite material, which comprises the following steps: S1, mixing urea and a tin-containing precursor to complete dissolution to obtain mixed solution; and S2, carrying out hydrothermal reaction on the mixed solution and drying the product to obtain tin dioxide nanoparticles, carrying out dry grinding, and adding carbon for ball milling to obtain a tin dioxide / alumina doped carbon composite material. The invention also provides a tin dioxide / alumina doped carbon composite material prepared by the method. The invention provides the tin dioxide / alumina doped carbon composite material and the preparation method thereof, which solve the problem that the existing lithium-ion battery anode material causes quick capacity depletion and poor cycle performance of batteries due to serious volume expansion effect.
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Description

technical field

[0001] The invention belongs to the technical field of electrochemistry, and in particular relates to a tin dioxide / alumina doped carbon composite material and a preparation method thereof. Background technique

[0002] With the rapid development of society today, energy crisis and environmental issues have become the focus of many researchers, and people are paying more and more attention to finding a new type of environmentally friendly energy storage device. As a typical representative of a new type of energy, lithium-ion batteries have very obvious advantages. Lithium-ion batteries have become the mainstream development direction of secondary batteries due to their excellent performance. Anode materials play a vital role in improving the performance of lithium-ion batteries. Due to its high energy density, fast charging and discharging performance, good cycle life, reliable safety and other characteristics, lithium-ion batteries have shown good applicati...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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