Overview
Graphene conductive paste is an advanced carbon-based conductive material where graphene flakes are uniformly dispersed in a liquid medium. Unlike traditional carbon black or graphite pastes, it offers superior conductivity at lower filler loadings due to graphene's high aspect ratio and intrinsic electron mobility. The product bridges the gap between laboratory-scale graphene applications and industrial-scale manufacturing needs. Developed primarily for energy storage applications, this material has gained prominence in the past decade alongside the commercialization of lithium-ion batteries. Its formulation typically includes graphene (single or few-layer), conductive additives, binders, and solvents (aqueous or organic), with viscosity adjusted for specific coating methods like doctor blading or screen printing.
Physical and Chemical Properties
The paste exhibits sheet resistance as low as 10-50 Ω/sq at 20µm thickness, outperforming conventional conductive materials. Its thermal conductivity ranges between 1500-5000 W/mK depending on graphene orientation and loading percentage. The material maintains stability across a wide temperature range (-20°C to 200°C) without significant conductivity degradation. Key rheological properties include shear-thinning behavior with typical viscosities of 500-5000 cP, enabling uniform coating deposition. Most commercial formulations achieve solid content of 10-30% with graphene constituting 5-20% of the solids. The paste's shelf life is typically 6-12 months when stored properly, though prolonged storage may require re-dispersion.
Main Applications
In lithium-ion batteries, the paste serves as conductive additive in both cathodes (LFP, NMC) and anodes (Si-based), improving rate capability and cycle life by creating efficient electron pathways. Battery manufacturers report 10-20% capacity improvement compared to conventional carbon black additives at equivalent loadings. Supercapacitor electrodes benefit from the paste's high surface area (600-1000 m²/g) and pore structure accessibility. Other applications include transparent conductive films for touch panels (when combined with silver nanowires), printed flexible electronics, and electromagnetic interference (EMI) shielding coatings for aerospace components. Emerging uses encompass heating elements and anti-static coatings.
Safety and Storage
While graphene itself poses minimal health risks, the paste's solvent components (often NMP, water, or glycol ethers) require proper handling. Use chemical-resistant gloves (nitrile or neoprene) and safety goggles during processing. Ensure adequate ventilation to prevent solvent vapor accumulation, especially with organic-based formulations. Storage recommendations include maintaining temperatures between 5-30°C in sealed HDPE containers. Aqueous formulations may require biocides to prevent microbial growth. Freezing should be avoided as it may cause irreversible graphene aggregation. For large-scale industrial use, conductive grounding of containers is advised due to potential static accumulation.
B2B Procurement Guide
When sourcing graphene conductive paste, prioritize suppliers who provide detailed technical datasheets including graphene layer count (preferably <5 layers), oxygen content (<10 at.%), and D50 particle size distribution (typically 1-10µm). Request batch-specific conductivity test reports and inquire about quality control measures for consistency. For battery applications, verify compatibility with your binder system (PVDF, CMC/SBR etc.). Sample testing should evaluate coating uniformity, drying characteristics, and adhesion strength. Bulk pricing negotiations should consider annual volume commitments, with MOQs commonly starting at 100kg. Leading manufacturers are concentrated in China, South Korea, and the US, with lead times of 4-8 weeks for custom formulations.
Related Manufacturers
- 主营：碳纤维粉、碳纤维短切、芳纶短切、石墨烯、高纯人造石墨粉、芳纶浆粕、硫化锑、铜纤维、腈纶浆粕、聚丙烯腈纤维、柔性焦炭、麻纤维、木质纤维、玄武岩纤维
- 主营：兽药包装机、颗粒包装机、粉剂包装机、石墨烯浆料灌装机、液体包装机、多列包装机、颗粒灌装机、液体灌装机，、粉剂灌装机、二维码采集系统、全自动包装流水线
- 主营：鳞片石墨、石墨乳、膨胀石墨、高碳石墨、微粉石墨
- 主营：鳞片石墨、石墨粉、导电石墨、石墨乳
- 主营：石墨烯、石墨烯母粒、石墨烯薄膜、石墨烯粉、石墨烯树脂、石墨烯浆液、石墨烯浆料、石墨烯润滑油、石墨烯纤维、石墨烯LED片、石墨烯垫片、基础型石墨烯、工业石墨烯、家用石墨烯、尼龙石墨烯、石墨烯涂料、石墨烯防腐涂料、水性石墨烯、散热石墨烯、防锈石墨烯、石墨烯发热膜、工业石墨烯纤维、石墨烯塑料母粒
- 主营：碳纳米管、碳纳米管粉体、单壁碳纳米管、导电浆料、多壁碳纳米管、聚偏氟乙烯、聚四氟乙烯
- 主营：石墨、鳞片石墨、微粉石墨、可膨胀石墨、石墨粉、石墨乳、石墨纸
- 主营：研磨分散机、三级分散乳化机、超高速胶体磨、石墨烯分散机、粉液混合机、液液混合机、实验室均质机、升降式分散乳化机、食品级胶体磨、乳化泵、真空乳化机、芳纶沉析机、均质机、手持式均质乳化机、均质乳化机、不锈钢反应釜、胶体磨、真空均质乳化机、乳化胶体磨、日化膏霜成套反应釜、超高速分散均质机、化妆品乳化剂、气流粉碎机、流化床气流粉碎机、圆盘式气流粉碎机
- 主营：石墨毡、电极毡、碳纤维制品
- 主营：石墨烯导电浆料消泡器、真空搅拌脱泡机、机械消泡器
- 主营：全羟基、二维红外材料、MBene、石墨烯、MXene、黑磷、高性能氧化锆陶瓷、高性能氧化镁陶瓷、高导热氮化铝陶瓷、高精密陶瓷加工、高性能氧化铝陶瓷、PBN和热压氮化硼陶瓷、特殊氧化钙陶瓷、生物材料定制
- 主营：[]
- 主营：染色液、新材料、水苏糖、石墨烯导电浆料、阻燃剂、氮化锶、蒽醌紫、氧氟酸、胎盘肽、喹烯酮、钒酸铵、硫酸锂、钒酸铈、硫酸锶、降钙素、紫苏烯、锂电池、布洛芬、丁酸铝、锑酸钠、烟酰胺、牛磺酸、褪黑素、鸡蛋白、磷酸铁、丙酸铵
- 主营：2d碳化钒、单层mbene、陶瓷材料、石墨烯导电浆料、mab相材料、mbene前驱体、ti3c2tx柔性膜、免疫因子纳米载体服务
- 主营：碳化锆、富勒烯、钼镓碳、石墨烯、导电胶、石墨乳、水溶液、异质结、碳化钛、多层粉、分散液、莫来石、碳材料、高纯镍、粗粉料、过量铝、氧化铜、黄铜粉、碳化硅、钒铝碳、铬铝碳、相材料、铁氟龙、纳米管、氮化硼