Method for preparing supercapacitor carbon aerogel by utilization of bagasse

A technology of supercapacitors and carbon aerogels, which is applied in the fields of hybrid capacitor electrodes and hybrid/electric double layer capacitor manufacturing, etc., can solve the problem of difficulty in preparing high-performance carbon-based electrode materials, too large differences in structure and composition, and limited resources. and other problems, to achieve the effect of low price, abundant sources and broad development prospects
CN103839699AActive Publication Date: 2014-06-04SHANDONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG UNIV
Publication Date
2014-06-04

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Abstract

The invention discloses a method for preparing supercapacitor carbon aerogel by the utilization of bagasse. The method includes the steps that the bagasse is used for preparing cellulose powder without xylogen and hemicellulose; the cellulose powder is used for preparing cellulose aerogel; the cellulose aerogel is carbonized to obtain carbon aerogel; the carbon aerogel is activated to obtain the supercapacitor carbon aerogel. According to the method, the industrial waste bagasse is used as raw materials, the requirements for sustainable development and environmental protection are met, and the cost of electrode materials is effectively lowered. The product prepared through the method is of a three-dimensional hierarchical pore structure; compared with a product obtained through a conventional method, the product prepared through the method is large in specific area and good in repeatability, and has higher specific capacitance and better cycling stability. The method is more suitable for preparing supercapacitor electrode materials and has wide development prospects.
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Description

technical field

[0001] The invention relates to a method for preparing carbon aerogel, in particular to a method for preparing a supercapacitor carbon aerogel with a three-dimensional multi-level pore structure by using bagasse. Background technique

[0002] With the development of social economy, people pay more and more attention to the ecological environment and green energy. As a new type of energy storage element, supercapacitors are increasingly valued. Compared with various energy storage devices widely used at present, supercapacitors have the advantages of high power density of ordinary capacitors and high energy density of secondary batteries, fast charging speed, long cycle life, wide operating temperature range, and no pollution to the environment. Widely used in data memory storage systems, backup power supplies, portable instruments and equipment, communication equipment, fuel cells, hybrid power supplies for electric vehicles and other fields.

[0003] Elect...

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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