Overview
Supercapacitor materials form the core of electrochemical double-layer capacitors (EDLCs), bridging the gap between batteries and conventional capacitors. These advanced materials store energy through reversible ion adsorption at the electrode-electrolyte interface, enabling exceptional power density (10-100x batteries) and cycle life (>100,000 cycles). The global market is projected to grow at 15% CAGR, driven by renewable energy and EV applications. The most common materials include high-surface-area carbons (activated carbon, graphene), conductive polymers, and metal oxides. Each offers distinct trade-offs between capacitance, cost, and stability. Emerging hybrids combine nanomaterials with traditional compositions to enhance performance.
Physical and Chemical Properties
High surface area (1,000-3,000 m²/g for activated carbon) is critical for charge storage capacity, achieved through controlled activation processes. Pore size distribution must balance micropores (<2 nm) for ion adsorption and mesopores (2-50 nm) for ion transport. Typical bulk densities range 0.3-0.6 g/cm³, with tap densities up to 0.8 g/cm³ for compressed electrodes. Chemically, carbon-based materials exhibit inertness in organic electrolytes (up to 3V window) but require strict moisture control (<100 ppm). Conductivity varies from 1-100 S/cm for graphene to 0.1-1 S/cm for activated carbons. Thermal stability exceeds 400°C in inert atmospheres.
Main Applications
Transportation: Regenerative braking systems in EVs and hybrid vehicles leverage supercapacitors' rapid charge/discharge. Leading automakers use carbon-based electrodes for 10-15 year lifespans. Renewable Energy: Wind turbine pitch control and solar farm ramp-rate mitigation require materials with >500,000 cycle durability. Industrial: UPS systems for semiconductor fabs utilize nickel oxide-based materials for high-temperature stability. Consumer Electronics: Graphene-enhanced electrodes enable fast-charging power banks. Emerging applications include grid frequency regulation and pulsed power systems.
Safety and Storage
Carbon powders demand explosion-proof handling during milling and packaging due to dust hazards. NFPA ratings typically show Health 1, Flammability 1, Reactivity 0. Storage in nitrogen-purged containers prevents oxidation of high-surface-area materials. Electrode slurry preparation requires organic solvents (acetonitrile, propylene carbonate) with proper ventilation. Spent materials may contain heavy metals (in pseudocapacitive oxides) requiring hazardous waste disposal. Always consult SDS for specific compositions.
B2B Procurement Guide
Technical specs to verify: BET surface area (±5% tolerance), pore volume (≥0.8 cm³/g for organic electrolytes), ash content (<1% for battery-grade), and iron contamination (<50 ppm). Request third-party test reports for key metrics. Bulk orders (≥1 ton) typically secure 10-15% discounts. Consider regional suppliers for electrolyte compatibility - North American manufacturers often optimize for acetonitrile-based systems, while Asian suppliers focus on aqueous electrolytes. Lead times range 4-8 weeks for custom pore structure materials.
Related Manufacturers
- 主营：超导炭黑、电池导电剂、抗静电填料、导电添加剂、锂电池电极材料、导电炭黑、乙炔炭黑、炭黑、造粒炭黑、电池炭黑、超纯乙炔炭黑
- 主营：椰壳活性炭、椰壳炭化料、硬碳前驱体、生物质原料、钠电负极材料、硅基多孔碳
- 主营：隔热粉、氧化铝粉、隔热浆料、超级电容器三氧化钨、超细磁粉、磁性液体、纳米磁粉、电池材料、二氧化硅、合金材料、电子涂层、纳米银粉、涂料油漆粉、透明氧化铝、水性分散液、纳米氧化镧、氧化锆陶瓷、纳米氧化铁、纳米氧化铝、纳米氢氧化铝、纳米氧化镁、纳米氧化锌
- 主营：气氛回转炉、连续式回转炉、连续式回转窑、超级电容碳回转窑、间歇式回转炉、间歇式回转窑、活性炭蒸气活化炉、真空气氛炉、网带炉、氢气网带炉、气氛网带炉、气氛推板炉、推板窑、辊道炉、碳化炉、活化炉、管式炉、网带烧银炉、升降炉、台车炉、台车气氛炉、井式炉、烧结炉、地坑炉、隧道窑、还原炉
- 主营：碳纤维粉、碳纤维短切、芳纶短切、芳纶浆粕、石墨烯、硫化锑、铜纤维、高纯人造石墨粉、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：tlc274cdr、模块mos、易龙泰、chip1stop、缓冲器、衰减器、放大器、制pcb板、传感器、国内pcb、多层pcb、25svpf47m、逆变器、样板pcb、泰科源、博思达、稳压器、北高智、蓝伯科、机器人、变压器、控制器、smt贴片、阻抗fpc、整流管
- 主营：导电炭黑、乙炔黑、登卡乙炔黑、色素炭黑、环保炭黑、冶金炭黑、中色素炭黑、乙炔炭黑、喷雾炭黑、炭黑N990、天然气半补强炭黑、超导电炭黑、热裂解炭黑、混气炭黑、水泥砂浆炭黑、耐高温炭黑、N880炭黑、防静电炭黑、高色素炭黑、导电剂SP、水性炭黑、保温炭黑、油墨炭黑、纳米级炭黑、超耐磨炭黑
- 主营：活性炭、滤料、填料、超级电容活性炭、活性氧化铝球、铁碳、分子筛、蜂窝活性炭、柱状活性炭、椰壳活性炭、果壳活性炭、煤质颗粒活性炭、粉末活性炭、铁碳填料、碳分子筛、干燥剂
- 主营：NCC黑金刚电容、韩国三莹电容、贝特保险丝/保险管、凯美超级电容、东阳光电容、熔断器、惯展散热风扇
- 主营：活性炭、蜂窝活性炭、椰壳活性炭、超级电容炭、木质活性炭、煤质活性炭、柱状活性炭、800碘值活性炭
- 主营：NCC黑金刚电容、黑金刚电容、韩国三莹电容、凯美超级电容、东阳光铝电解电容、ncc电容、三莹电容
- 主营：淋胶机、自动淋胶机、聚氨酯淋胶机、超级电容灌胶机、蜂窝板淋胶机、保温板淋胶机、防火门淋胶机、净化板淋胶机、隔断板淋胶机、海洋板淋胶机、不锈钢橱柜淋胶机、全自动门业淋胶机、SPC蜂窝板淋胶机、蜂窝板自动线淋胶机、玻镁格子板滴胶机、手工板淋胶机、防火门避空淋胶机、建材板淋胶机、中空玻镁板滴胶机、橱柜板淋胶机、手持淋胶机、自动灌胶机、自动混胶机、大流量混胶机、环氧树脂淋胶机
- 主营：示波器、电子模拟器、直流电源、超级电容、电子负载、数字电桥LCR、绝缘电阻测试仪、电流源、无纸记录仪、万用表、信号发生器、任意波形发生器、网络分析仪、频谱分析仪、光谱分析仪、功率计微波、安规测试仪、频谱仪
- 主营：水处理材料、水处理滤料、污水治理、水处理工程
- 主营：硫酸钡、碳酸钙、硅溶胶、苄基胂酸、甲基磺酸、氨基磺酸、正硅酸乙酯、多聚甲醛
- 主营：电子硬件产品测试仪器、示波器、示波器探头、直流电子负载、可编程直流电源、网络分析仪、电池模拟器、频谱信号分析仪、安规测试仪、逻辑分析仪、源表SMU、万用表、函数发生器、阻抗分析仪、LCR数字电桥、数据采集器、温度记录仪
- 主营：国巨电容、国巨电阻、三星电容、超级电容、华新科、伍尔特电感、二极管、三极管、贴片电感、lm317to-220、贴片排阻、贴片电阻、贴片电容、贴片磁珠、贴片滤波器、s8050s0t23、旺诠电阻、厚声电阻
- 主营：芯片、集成IC、TI、ST、NXP、ADI、tlc354cpw、b3u-1000p、衰减器、pcb批量、a991-2015、a999-3283、多层板、b140af-13、a999-3530、733910070、放大器、a999-3323、2474r-25l、制pcb板、国内pcb、多层pcb、逆变器
- 主营：固态电池设备、扣式电池设备、圆柱电池设备、锂电设备、电池材料