Carbon Nanotube Conductive Agent for Solid State Batteries Market to Grow at 25.0% CAGR Through 2031

The global market for Carbon Nanotube (CNT) Conductive Agents used in solid-state batteries is undergoing a transformation, with significant advances from leading manufacturers and a robust compound annual growth rate (CAGR) of 25.0% projected from 2025 to 2031. According to the latest industry report by QYResearch, the market is expected to grow from USD 29.0 million in 2024 to USD 122 million by 2031.
Carbon nanotube conductive agents are essential in solid-state lithium battery systems, primarily used to enhance electronic conductivity and improve electrode-electrolyte interface contact. These agents significantly boost electrochemical performance in applications such as electric vehicles (EVs), consumer electronics, aerospace, and other emerging sectors.
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Key Companies Driving Innovation
The top players in the market include:
• OCSiAI
• Jiangsu Cnano Technology
• Guangdong Dowstone Technology
• Meijo Nano Carbon
• LG Chem
OCSiAI leads the global market in 2024, supported by their newly commissioned single-wall CNT dispersion plant in Serbia. This plant began commercial production in Q3 2024 and is expected to reach a capacity of 120 tonnes per annum by the end of 2025. The company's expansion aligns with increased demand for CNT dispersions tailored to solid-state battery manufacturers.
Jiangsu Cnano Technology and Guangdong Dowstone Technology are also expanding production capacities, focusing on improved dispersion techniques and scalable SWCNT and MWCNT-based products to replace conventional carbon black in high-efficiency battery electrodes.
Carbon Nanotube Conductive Agent Product Profiles
1. OCSiAl - TUBALLTM SWCNT Dispersion for Solid State/High Rate Batteries
• Product type: Single walled carbon nanotube (SWCNT) dispersion, suitable for dry coated electrodes and solid state battery integration
• Performance: Enables up to 4 C charge rate via improved 3D conductive network among active particles
• Benefits: Reduced carbon-black load, enhanced conductivity, mechanical stability, thin film architectures for high energy density
• Applications: High rate cathode and silicon anode solid state or dry process electrodes
2. Jiangsu Cnano Technology - CNT Conductive Paste / Powder
• Product: CNT conductive paste and powder with ≥ 99% purity, original CNT length > 250 μm
• Electrical resistivity: ~10−4 Ω·cm; Ampere density ~107 A/cm2; Thermal conductivity ~3,000 W/mK; Tensile strength ~30 GPa
• Advantages: Best conductivity & mechanical properties, optimized for lithium battery conductive additive applications
• Applications: Solid state batteries, consumer electronics, EV battery electrodes
3. Guangdong Dowstone Technology - CNT Based Conductive Agent for Fast Charge Batteries
• Product: Carbon nanotube conductive agents integrated in ternary precursor systems, designed for ultra fast charging battery use
• Application suitability: Solid state or semi solid state batteries, especially fast charge silicon/ternary anode systems
• Benefits: Supports super-fast charging; improved conductivity and interface stability in advanced cell chemistries
4. Meijo Nano Carbon - High Crystallinity SWCNT for Silicon Anodes
• Product: High-purity, high crystallinity single walled carbon nanotubes (SWCNTs) for silicon based anode conductive agent use
• Notable: Only company with semi mass production technology for this grade; tailored for dry electrode and solid state applications
• Applications: Silicon anode SSBs, high nickel cathodes, dry battery electrode (DBE) and solid state cell integration
5. LG Chem - Industrial Scale SWCNT Conductive Agent
• Product: SWCNT conductive agent products produced at high volume for EV battery electrodes; CNT 4 Plant to double capacity reaching ~6,100 tpa by 2025
• Features: Substitutes carbon black; improves conductivity by ~10%, reduces additive dosage by up to 30% in battery electrodes
• Applications: Electric vehicle battery electrodes including solid state and next gen lithium cells
Latest Trends and Applications of CNT Conductive Agents in Solid State Batteries
1. Replacing Carbon Black with CNT for Enhanced Conductivity
A significant industry shift is underway as manufacturers move from traditional carbon black to carbon nanotubes (CNT) for conductive agents. Unlike carbon black's 0 dimensional, point contact morphology, 1D CNT networks establish continuous electron pathways even at lower loadings. This enables energy density enhancements without compromising conductivity. CNTs also support thinner electrodes and robust mechanical structures, leading to faster charging, reduced interface resistance, and thinner form factors.
2. Lower Dosages, Improved Architecture
CNTs typically require only 0.5-2 wt % to form an effective percolation network-far less than carbon black's typical 5-8 wt %. This reduction eases material costs and allows for thinner, more energy-dense electrode layers. CNTs' high aspect ratio and superior dispersion also lead to better mechanical integrity-critical for solid-state architectures where contact interfaces must remain stable during cycling.
3. Hybrid Conductive Systems for Optimized Performance
Recent research has shown that hybrid conductive systems-combining CNT with small fractions of carbon black-can provide optimal performance. The CNT component delivers long-range conduction, while carbon black fills micro voids and enhances slurry rheology. This binary approach balances dispersion, conductivity, and electrode mechanical stability, yielding lower internal resistance and more uniform electrode structures.
4. Applications Across Key Sectors
CNT conductive agents are now being deployed in multiple application sectors:
• Consumer Electronics: Thin, flexible solid-state batteries for smartphones and wearable devices benefit from CNT's high conductivity and reduced dosage, improving both runtime and cycle life.
• Electric Vehicles: With rising demand for high energy density, fast charging solid state platforms, CNT additives support thicker electrodes, lower resistance, and better thermal performance-critical for EV battery packs.
• Aerospace: Aerospace-grade cells require superior safety, high thermal stability, and long lifetimes. CNT additives help ensure structural integrity and reliable conductivity under extreme conditions.
• Other Emerging Sectors: Industrial systems, medical devices, and energy storage modules are exploring CNT-enhanced SSBs for their compactness, safety, and performance advantages.
5. Emerging Research Trends Beyond CAGR
Beyond the projected CAGR, several technical trends are notable:
• Control of CNT length and alignment enhances conductive networks and reduces contact resistance, improving rate capability and cycling stability.
• Vertically aligned CNT arrays are being explored to further boost specific capacity (e.g. >700 mAh/g at moderate rates), offering improvements over randomly dispersed CNT systems.
• Integration with advanced binder systems and slurry design (e.g. CNT-HNBR-PVDF systems) improves dispersion and slurry miscibility, vital for scalable electrode fabrication.
• CNTs are also being incorporated into dry-coating and roll to roll processes, enabling high-throughput, binder free electrode architectures aligned with solid-state manufacturing needs.
6. Regional and Industry Dynamics
The Asia Pacific region leads the market in adoption, driven by aggressive capacity expansion from CNT producers and integration by major battery manufacturers. Automotive and consumer electronics players in China, Japan, and South Korea are advancing solid-state battery commercialization, making CNT conductive agents essential components. North America and Europe follow closely, with aerospace and EV initiatives propelling further adoption.
Market Classification by Type
The market is categorized into:
• Single-walled Carbon Nanotubes (SWCNT)
• Multi-walled Carbon Nanotubes (MWCNT)
Both types are witnessing increased research and adoption. SWCNTs offer superior conductivity and are especially suitable for dry-electrode processing, while MWCNTs continue to dominate in cost-sensitive applications.
Downstream Customers Using CNT Conductive Agent Products
The following companies have been publicly identified as customers using carbon nanotube conductive agent products (such as OCSiAl's TUBALLTM or Jiangsu Cnano conductive paste) in battery applications, including solid-state batteries.
• CATL
• SVOLT
• CALB (China Aviation Lithium Battery)
• Shenzhen Jinbaina Nanotechnology
• Shenzhen FAYMO Technology
• Qingdao Haoxin New ENERGY Technology
• Wuxi Dongheng New Energy Technology
• HaoXin Technology
• Dycotec Materials Ltd
• Nanocyl
• Chasm Advanced Materials
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Regional Outlook
Asia-Pacific, led by China, Japan, South Korea, and Southeast Asia, will remain the largest and fastest-growing market. North America and Europe are also seeing rapid developments, particularly in EV and aerospace battery R&D. Germany is projected to be the leading European country by revenue through 2031.

With rising demand for safer, high-performance solid-state batteries, the role of CNT conductive agents will become increasingly pivotal. Companies are investing in scalable production, improved materials, and strategic partnerships to meet this demand. As solid-state battery adoption accelerates across automotive and electronics sectors, carbon nanotube technology is positioned at the center of next-generation energy storage innovation.

Chapter Outline:

Chapter 1: Introduces the report scope of the report, executive summary of different market segments (by region, product type, application, etc), including the market size of each market segment, future development potential, and so on. It offers a high-level view of the current state of the market and its likely evolution in the short to mid-term, and long term.
Chapter 2: key insights, key emerging trends, etc.
Chapter 3: Manufacturers competitive analysis, detailed analysis of the product manufacturers competitive landscape, price, sales and revenue market share, latest development plan, merger, and acquisition information, etc.
Chapter 4: Provides profiles of key players, introducing the basic situation of the main companies in the market in detail, including product sales, revenue, price, gross margin, product introduction, recent development, etc.
Chapter 5 & 6: Sales, revenue of the product in regional level and country level. It provides a quantitative analysis of the market size and development potential of each region and its main countries and introduces the market development, future development prospects, market space, and market size of each country in the world.
Chapter 7: Provides the analysis of various market segments by Type, covering the market size and development potential of each market segment, to help readers find the blue ocean market in different market segments.
Chapter 8: Provides the analysis of various market segments by Application, covering the market size and development potential of each market segment, to help readers find the blue ocean market in different downstream markets.
Chapter 9: Analysis of industrial chain, including the upstream and downstream of the industry.
Chapter 10: The main points and conclusions of the report.

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