Answers

  • 0
  • 0

Global Graphite market trend 2022-2029 What is the lithium Intercalation Mechanism of Graphite? by Newstatayoung

Brazil, the world's largest coffee bean producer, recently announced that it is facing the worst drought in 91 years, affecting local hydropower generation and agricultural Graphite keeps going up.

Graphite has good conductivity, high crystallinity, and a well-layered structure. It is very suitable for repeated intercalation and deintercalation of lithium ions. It is currently the most widely used and most mature negative electrode material. After lithium ions are intercalated between the graphite layers, a lithium intercalation compound LixC6 (0≤x≤1) is formed, and the theoretical capacity can reach 372mAh/g (x=1). The reaction formula is: xLi++6C+xe-→LixC6

Lithium-ion intercalation changes the stacking mode between graphite layers from ABAB to AAAA.

1650862983401098.jpg

Graphite modification treatment

Since the graphite interlayer spacing (d≤0.34nm) is smaller than the crystal plane interlayer spacing (0.37nm) of the graphite lithium intercalation compound LixC6, the graphite layer spacing changes during the charging and discharging process, which is easy to cause the graphite layer to peel off, pulverize, and also occur. Lithium ions and organic solvent molecules co-intercalate into the graphite layer, and the organic solvent decomposes, affecting the battery cycle performance.

Through graphite modification, such as oxidation on the surface of graphite and coating of polymer pyrolytic carbon, composite graphite with a core-shell structure can be formed, improving the charge and discharge performance of graphite and increasing the specific capacity.

Other anode materials

At present, graphite is the mainstream commercial lithium battery negative electrode material. Its theoretical gram capacity is 372mAh/g. The graphite negative electrode material with better performance on the market can reach 360mAh/g, and the gram capacity gradually tends to the limit value. Although graphite as a negative electrode material has disadvantages such as low gram capacity and cycle deviation, because of the high-cost performance of graphite-based negative electrode materials, it will not be replaced by new materials immediately. The specific reasons are as follows:

1. The new anode material technology is immature, and it will take a long time for performance improvement;

2. The price of new anode materials is higher, and the price advantage of graphite anodes is obvious;

3. The negative electrode material needs to be used in combination with the positive electrode material, electrolyte, etc., and the specific capacity of the current positive electrode material is generally low.

High-quality graphite supplier

Luoyang Moon & Star New Energy Technology Co., LTD, founded on October 17, 2008, is a high-tech enterprise committed to developing, producing, processing, selling, and technical services of lithium-ion battery anode materials. After more than 10 years of development, the company has gradually developed into a diversified product structure with natural graphite, artificial graphite, composite graphite, intermediate phase, and other negative materials (silicon-carbon materials, etc.). The products are widely used in high-end lithium-ion digital power and energy storage batteries. If you are looking for Lithium battery anode material, click on the needed products and send us an inquiry:sales@graphite-corp.com

 


The coronavirus (COVID-19) pandemic not only had a significant impact on public health, it also severely affected one of the linchpins of the global economy – the tourism industry. As many countries introduced curfews and travel restrictions to contain the spread of the virus, travel across the world significantly declined from early 2020 onwards. The financial repercussions of the coronavirus have already begun to manifest themselves within the tourism industry. In 2020, global revenue from the travel and tourism industry was estimated to drop from a forecasted 711.94 billion U.S. dollars to 568.6 billion U.S. dollars, representing a decrease of over 20 percent. The region predicted to see the highest decline in revenue was Europe, decreasing from 211.97 billion U.S. dollars in 2019 to roughly 124 billion U.S. dollars in 2020.
The downturn in tourism has caused the recession, and the weakening of the economy has also affected the market demand for Graphite. Recently, however, the demand for Graphite has increased, so contact us for the latest news on Graphite.

Inquery us

Our Latest Answers

Global Inconel 718 Alloy market trend 2023-2028 Properties and Applications of Inconel 718 Alloy by Newstatayoung

Inconel 718 alloys is a precipitation-hardening nickel-iron-based superalloy containing niobium and molybdenum. Its microstructure is austenite and has excellent comprehensive properties.…

Global early strength agent,superplasticizer for concrete market trend 2022-2026 Difference analysis between early strength agent and superplasticizer for concrete by Newstatayoung

Early strength admixture refers to the admixture that can improve the early strength of concrete and has no significant effect on the later strength.Superplasticizer for concreter is a concrete admixture that can reduce the amount of mixing water whi…

Global In625 powder market trend 2022-2027 Differences between In718 and In625 by Newstatayoung

Aluminium buyers in the US physical metal market have held off on new orders amid fears of a recession triggered by rising inflation and supply chain crises. Spot aluminium trading on the market has been suspended in recent weeks, according to indus…