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DOWSTONE

CN

Carbon Materials and Anode Materials

The Company’s core operating entities for carbon materials and anode materials comprise Grifen and its subsidiaries. In carbon materials, the Company centers its strategy on carbon nanotubes (CNTs), prioritizing the development of CNT powder and conductive slurry systems to deliver high-performance conductive network solutions. Building on the commercial success of multi-walled CNTs (MWCNTs), the Company has independently developed oligo-walled and single-walled CNTs (SWCNTs), establishing a diversified portfolio of high-performance conductive additives. Leveraging its forward-looking industrial chain布局, the Company continues to enhance self-sufficiency in critical process steps. Its CNT business has achieved a vertically integrated layout spanning from catalysts and powders to slurries, with near-complete in-house supply of CNT powder (approximately 100% self-sufficiency). This integration effectively controls costs and strengthens core competitiveness.

In anode materials, capitalizing on its carbon materials platform, the Company has expanded into the anode sector, scaling up synthetic graphite processing while accelerating the industrialization of silicon-carbon anodes. Adhering to a technology-driven approach, the Company has built a comprehensive technical matrix encompassing fundamental R&D, key process breakthroughs, and product performance optimization. It has mastered critical processes including proprietary fabrication of porous carbon substrates, direct coating of SWCNTs, vapor-phase synthesis of silicon-carbon anodes, and surface modification of graphite anodes. Furthermore, the Company has secured numerous core technologies such as activation-free porous carbon preparation, synthesis of narrow-size-distribution spherical carbon precursors, and development of high-first-cycle-efficiency silicon-carbon products, thereby establishing distinct technological leadership in the anode materials field.

Core Product

Single walled carbon nanotube powder GRF-C5001

1_單壁碳納米管粉體_GRF-C5001

Single walled carbon nanotube conductive paste

2_單壁碳納米管導(dǎo)電漿料

Oligowalled carbon nanotube powder GRF-C4001

3_寡壁碳納米管粉體GRF-C4001

Oligowalled carbon nanotube conductive paste

4_寡壁碳納米管導(dǎo)電漿料

Multi walled carbon nanotube powder

5_多壁碳納米管粉體

Multi walled nanotube conductive paste

6_多壁納米管導(dǎo)電漿料

Silicon carbon negative electrode ES-1

◆ The first coulombic efficiency is high, with a 0.8V initial efficiency of over 86.5%, and the full electric initial efficiency can be 1-2% higher than conventional gas-phase silicon carbon negative electrodes;

◆ In situ synthesis of porous carbon with high carbon skeleton strength, and excellent cycling performance in the silicon cylindrical battery system with partially filled pores.

硅碳負(fù)極_ES-1

Silicon carbon negative electrode MS-3

◆ Using spherical resin based porous carbon with high porosity;

◆ High compressive strength, low expansion, excellent battery cycling performance;

◆ Suitable for high silicon, high-voltage, and long-life battery systems.

硅碳負(fù)極_MS-3