top grade carbon electrode

3 month ago

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Hebei Shitu New Materials Technology Co., LTD

4 month

Product details

The following is a summary of the core advantages and disadvantages of carbon electrodes, integrating multiple research results:

I. Main advantages ‌

Youdaoplaceholder0 Low cost ‌

The production does not require graphitization treatment, significantly reducing energy consumption (for example, graphitization requires an additional electricity consumption of about 4,500 KWH per ton). The raw material is mainly coke, and its price is lower than that of metal electrodes or graphite electrodes.

Excellent chemical stability ‌

It is resistant to strong acid and alkali corrosion, has strong oxidation resistance at high temperatures (the surface oxide film can delay consumption), and is suitable for harsh environments such as electrolysis and metallurgy.

Good electrical conductivity and electrochemical activity ‌

The conductivity meets the requirements of most electrochemical reactions; The surface of carbon atoms can adsorb organic/biomolecules through π-π stacking, which is conducive to the construction of biosensors (such as glucose detection).

Environmental features ‌

Replacing traditional electrode paste can reduce asphalt fume pollution and improve the working environment.

Youdaoplaceholder0 Mechanical properties and dimensional fit ‌

The diameter can be customized (Φ780-1400mm) to enhance arc stability and thermal melting efficiency. High mechanical strength, resistant to high-temperature deformation of 45%.

Youdaoplaceholder0 2. Core shortcomings ‌

Low first charge and discharge efficiency (battery field) ‌

The high specific surface area and pore structure lead to a large number of irreversible reactions (such as excessive consumption of lithium/sodium ions by the SEI film), and the first coulombic efficiency of the silicon-carbon anode needs to be improved by pre-lithiation technology.

Volume expansion problem (lithium/sodium battery anode) ‌

The lithium intercalation expansion of silicon in silicon-carbon composites has not been completely suppressed. Long-term cycling may cause structural cracking and capacity attenuation.

Youdaoplaceholder0 Energy density is limited ‌

In battery applications, the actual specific capacitance of carbon electrodes (such as activated carbon supercapacitors) is much lower than the theoretical value. Due to the difficulty for microporous ions to enter, the specific surface area utilization rate is low (the typical value is only 22.7%).

The preparation process is complex ‌

High-performance carbon electrodes (such as silicon-carbon core-shell structures and nano-activated carbon) require precise regulation of porosity and dispersion, posing significant challenges to mass production consistency and having higher costs than graphite anodes.

has less corrosion resistance than graphite electrode ‌

In scenarios such as aluminum electrolysis, the corrosion rate of carbon anodes is higher than that of graphite electrodes and they need to be replaced frequently

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Hebei Shitu New Materials Technology Co., LTD

Audited supplier

4 month

Main Product: graphite electrode, graphite power , carbon electrode, graphite scrap, graphitized petroleum coke, calcined petroleum coke

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