Product | OCSiAl high solid content single-walled carbon nanotube new product released | Improve lithium-ion battery performance

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Through technological innovation, OCSiAl has increased the production capacity of single-walled carbon nanotube powder and launched a new generation of high-solid conductive products. Compared with existing products, the solid content has been increased by more than 2 times, further reducing the cost of single-walled carbon nanotubes. The usage cost is improved and the price/performance ratio is improved.



The new generation of high-solid conductive products are already available in the Chinese market and will be promoted to the European market in the next step.


OCSiAl is a global leader in single-walled carbon nanotube (SWCNT) technology and manufacturing. Through the expanded production capacity of its single-walled carbon nanotube synthesis facility, it has improved the cost-effectiveness of TUBALL BATT products and further consolidated OCSiAl's leading position in single-walled carbon nanotubes. Leading position in global markets. In addition, compared with existing solutions, the new generation of conductive agent slurry has a 2.5-fold increase in single-wall carbon tube content, which will help further reduce the cost of lithium-ion battery products and increase the use of high-quality materials from Europe by Chinese battery manufacturers. The economics of quality single-walled carbon nanotubes.


For both positive and negative electrode applications, OCSiAl provides high solid content solutions. Compared with traditional conductive agents, such as multi-walled carbon nanotubes, carbon black, etc., TUBALL BATT has a higher cost performance. Compared with multi-walled carbon nanotubes, , single-walled carbon nanotubes only require 1/10 of the addition.


The new product TUBALL BATT NMP with 1% solid content is used in the positive electrode, and TUBALL BATT H2O with 0.8% solid content is used in the negative electrode, which can effectively help lithium-ion battery manufacturers further improve product performance. The core advantage of the new conductive fluid product comes from the high content of single-walled carbon nanotubes, which is 2–2.5 times higher than current products. "The solid content of single-walled carbon nanotubes in the new product represents an industry-leading level in all series of single-walled carbon nanotube-based dispersions produced. Adding the same amount of single-walled carbon nanotubes to the battery pole piece is now required There is less solvent, so battery manufacturers can achieve higher solids content in the slurry. In addition, high-solids dispersions are undoubtedly more cost-effective than existing products, significantly improving the price/performance ratio.


In addition, in the process of dispersion manufacturing, transportation, storage and battery manufacturing, due to reduced material consumption, logistics costs are also reduced by 2-2.5 times, which is conducive to the sustainable development of the industry.


Both new products are currently produced locally in China.


OCSiAl produces high-quality single-walled carbon nanotubes under the TUBALL brand. Currently, TUBALL single-walled carbon nanotubes show superior performance to other single-walled carbon nanotubes on the Chinese market. The diameter of TUBALL single-walled carbon nanotubes is 1.6 (±0.4) nm, the length exceeds 5 μm, and the aspect ratio exceeds 3000. OCSiAl provides high-quality single-walled carbon nanotubes for lithium-ion batteries, with a single-walled carbon nanotube content of more than 99%. The G/D ratio is an important indicator to measure the quality and defect level of single-walled carbon nanotubes. According to this, TUBALL single-walled carbon nanotubes are high-quality products.


The single-walled carbon nanotubes produced by OCSiAl have unique morphological, physical and mechanical properties such as high aspect ratio and high flexibility, making them high-performance conductive and reinforcing materials. In contrast to short, hard multi-walled carbon nanotubes, single-walled carbon nanotubes establish a strong, long-range conductive network structure between active material particles, improving key battery characteristics such as improved cycle life, reduced DCR, and increased rate. Cohesion between performance and active materials. This is especially important for systems with high volume expansion, such as silicon-containing anodes. OCSiAl single-walled carbon nanotubes can greatly alleviate the recession problem and effectively facilitate the industrial application of silicon as a high-capacity anode active material. Nowadays, thanks to TUBALL single-walled carbon nanotubes, silicon-oxygen anodes can use 90% silicon-containing materials, helping industrialized batteries achieve energy density of 360kwh/kg or even higher breakthroughs.


In the cathode, the tough TUBALL single-walled carbon nanotube network can improve cohesion—strengthening the bonding between active material particles—and is currently widely used in thick coating systems. In future thick coating systems, it will help improve the flexibility and stability of ternary and iron-lithium thick electrodes.


OCSiAl is headquartered in Luxembourg and has been deeply involved in the Chinese lithium battery market for 8 years. In 2019, Shanghai Haiyi Technology and Trade Co., Ltd. (Haiyi), China's leading chemical trading/manufacturer, launched local mass production of single-walled carbon nanotube dispersion TUBALL BATT for lithium-ion battery applications to improve battery single-walled carbon Nanotube solutions supply chain resilience to the Chinese market. At the same time, Shanghai Haiyi Technology and Trade Co., Ltd. is also committed to continuously expanding production capacity to cope with the growing market demand.


Shanghai Haiyi Technology and Trade Co., Ltd. single-wall carbon nanotube slurry factory

Location: Huzhou, Anji

System: IATF 16949


Single-wall water-based slurry 4000MT, second phase production capacity 10000MT.

Single-wall solvent-based slurry 1000MT, second phase production capacity 5000MT.

The production line expansion is expected to be completed in 2023 and put into production in 2024.

All kinds of partners and friends are welcome to visit and provide guidance!