Lithium-Ion Dry Process Technology: A Dual Driver of Application Landing and Industry Transformation

Amid the new energy industry's transformation toward "high efficiency, low carbon, and low cost," lithium-ion dry process technology has evolved from lab-scale innovation to large-scale application, leveraging its core advantages of "solvent-free production, simplified processes, and controllable structures." It has not only reconstructed the core logic of lithium-ion battery electrode manufacturing but also achieved breakthrough deployments across three key sectors—power batteries, energy storage batteries, and supercapacitors. This technology exerts a profound impact on the upstream and downstream of the energy storage industry chain, industry competition dynamics, and the global pursuit of "dual carbon" goals, emerging as a pivotal engine for high-quality industrial development.

I. Core Application Scenarios of Lithium-Ion Dry Process Technology: Comprehensive Coverage from Batteries to Supercapacitors

Through optimized technical pathways, lithium-ion dry process technology has achieved precise adaptation to mainstream scenarios including power batteries, energy storage batteries, and supercapacitors, forming an application pattern of "differentiated landing and large-scale promotion":

1. Power Battery Sector: Breaking Through in Fast-Charging and Commercial Vehicle Scenarios

The core advantages of dry process technology—rapid ion migration and structural stability—have driven its first large-scale application in power batteries. Among various approaches, the dry calendering process, with its mature mass production capabilities, has become the primary choice for lithium iron phosphate (LFP) power batteries, suitable for both new energy passenger cars and commercial vehicles. In the passenger car segment, the fast-charging capability enabled by dry-process electrodes meets consumers' core demand for "energy supplement efficiency," and has been adopted by multiple leading automakers in their high-end model supply chains. For commercial vehicles, the fast-charging performance and long lifespan of dry-process power batteries are particularly critical: they significantly reduce charging time for heavy-duty trucks and buses, lower operational costs, and promote the transition of new energy commercial vehicles from "policy reliance" to "market recognition."

2. Energy Storage Battery Sector: Focusing on Cost Reduction and Long-Lifespan Adaptation

Large-scale energy storage scenarios impose stringent requirements on battery cost, cycle life, and safety. The dry coating process, with its advantages of low cost and low energy consumption, has become the preferred solution for energy storage batteries. Currently, dry process technology has been mass-produced in large-capacity lithium-ion energy storage batteries, covering grid-scale energy storage and industrial-commercial energy storage scenarios. In grid-scale energy storage stations, the long cycle life of dry-process energy storage batteries reduces equipment replacement frequency, resulting in a total cost of ownership significantly lower than that of wet-process batteries. In industrial-commercial energy storage applications, the low-carbon production characteristics of dry process technology help enterprises reduce their carbon footprint, aligning with green factory construction requirements. Additionally, the low-temperature curing feature of dry processes avoids material damage caused by high-temperature drying, further enhancing the stability of energy storage batteries in extreme environments and expanding their application scope in high-altitude and low-temperature regions.

3. Supercapacitor Sector: Amplifying Core Advantages of High Power and Long Lifespan

As "high-power, long-cycle" energy storage devices, supercapacitors are widely used in scenarios such as rail transit braking energy recovery, instantaneous power supply for industrial equipment, and new energy vehicle start-stop systems. The application of dry process technology has further amplified these core advantages. Traditional supercapacitor electrodes manufactured via wet processes face issues such as activated carbon particle agglomeration and uneven binder distribution, which limit energy density and cycle stability. Dry process technology effectively addresses these pain points through precise control of electrode microstructure.

In terms of process adaptation, the dry calendering process has achieved large-scale production of supercapacitor electrodes. This process mixes activated carbon, conductive agents, and dry binders into dry powder, which is then pressed onto current collectors to form a uniform and porous electrode structure. This improves the utilization rate of activated carbon's specific surface area, leading to a significant increase in supercapacitor energy density.

In application scenarios, dry-process supercapacitors have been widely adopted in rail transit: their rapid charge-discharge capability enables efficient recovery of braking energy, reducing energy consumption. In the industrial sector, the long cycle life of dry-process supercapacitors—far exceeding that of wet-process products—reduces equipment maintenance frequency and operational costs. In new energy vehicles, dry-process supercapacitors form hybrid energy storage systems with power batteries, mitigating high-current impact on power batteries, extending battery lifespan, and enhancing vehicle start-stop and acceleration performance. Currently, leading domestic and international supercapacitor enterprises have deployed dry process production lines, promoting the transition of supercapacitors from "auxiliary energy storage" to "primary energy storage" scenarios.

4. Special Battery Sector: Exploring High-Performance Customized Needs

In fields with extreme battery performance requirements, such as aerospace and special equipment, dry process technology also demonstrates unique value. Self-supporting electrodes produced via dry processes offer lightweight and high mechanical strength, meeting the strict volume and weight constraints of special equipment. Moreover, the solvent-free nature of dry processes eliminates safety hazards caused by residual solvents, satisfying the extreme reliability requirements of special scenarios. Currently, related technologies have entered small-batch customization stages, becoming an important direction for technological upgrading in the special battery sector.

II. Industry Impact of Lithium-Ion Dry Process Technology: Reconstructing the Industrial Chain and Competitive Landscape

The large-scale application of dry process technology represents not only an upgrade in manufacturing technology but also a profound restructuring of the entire energy storage industry chain, with impacts spanning upstream materials, midstream manufacturing, and downstream applications:

1. Upstream Materials: Driving the Iteration of Specialized Material Systems

Dry process technology imposes distinct performance requirements on materials compared to wet processes, directly driving the transformation of upstream material systems toward "dry-process compatibility." In the binder segment, traditional toxic organic solvent-based binders used in wet processes are gradually being replaced by water-soluble and hot-melt dry-process-specific binders, spurring the emergence of enterprises specializing in dry binder R&D. For active materials, positive and negative electrode materials for lithium-ion batteries require optimized particle morphology and size distribution, while activated carbon for supercapacitors needs improved dispersibility and specific surface area stability. This compels material enterprises to increase R&D investment and launch dry-process-specific products. Additionally, dry process technology's higher requirements for material purity accelerate the "quality upgrading" of the upstream materials industry, expected to further increase industry concentration.

2. Midstream Manufacturing: Dual Breakthroughs in Cost Reduction, Efficiency Improvement, and Green Transformation

For midstream manufacturing enterprises, dry process technology delivers core value through dual breakthroughs in "cost reduction" and "carbon reduction," covering both the lithium-ion battery and supercapacitor sectors. On the cost front, dry processes eliminate links such as solvent procurement, drying, and recovery, significantly reducing equipment investment, energy consumption, and environmental governance costs. Both battery and supercapacitor enterprises can establish cost advantages in fierce market competition. On the production front, simplified processes shorten production cycles and improve capacity utilization, alleviating the capacity shortage in power batteries, energy storage batteries, and supercapacitors. More importantly, the solvent-free emission characteristic of dry processes perfectly aligns with "dual carbon" goals, helping enterprises reduce carbon emissions and improve ESG ratings. Amid increasingly stringent global green trade barriers, this enhances the international competitiveness of products. Meanwhile, the higher technical threshold of dry processes accelerates industry "survival of the fittest": leading enterprises leverage technical accumulation and scale advantages to further expand market share, shifting the industry competition paradigm from "scale competition" to "technological competition."

3. Downstream Applications: Activating New Scenarios and Demand Upgrading

The performance improvements and cost reductions brought by dry process technology enable the expansion and upgrading of downstream application scenarios, covering various energy storage products. In the new energy vehicle sector, the fast-charging capability of dry-process power batteries promotes the construction of fast-charging infrastructure, while dry-process supercapacitors optimize vehicle power performance—together accelerating the replacement of fuel-powered vehicles by new energy vehicles. In the energy storage sector, the cost reduction and efficiency improvement of dry-process energy storage batteries significantly enhance the investment return rate of energy storage stations, driving the transition of the energy storage industry from "policy-driven" to "market-driven" and accelerating the construction of new power systems. In the industrial and transportation sectors, the high-power characteristics of dry-process supercapacitors expand their applications in port machinery, urban rail transit, and other scenarios, becoming key components for energy conservation and consumption reduction. Furthermore, dry process technology supports the R&D of high-energy-density and lightweight products, providing technical support for emerging fields such as smart wearables and drones, and further broadening the application boundaries of energy storage products.

4. Industry Standards and Ecosystem: Promoting the Formation of New Norms

With the simultaneous popularization of dry process technology in lithium-ion batteries and supercapacitors, the industry standard system is gradually improving. Currently, domestic and international efforts are underway to formulate relevant technical standards for dry-process electrodes, dry-process batteries, and dry-process supercapacitors, regulating key aspects such as material requirements, production processes, and performance indicators to lay a foundation for healthy industry development. Meanwhile, the industrial ecosystem surrounding dry process technology is accelerating formation: equipment enterprises launch mixing, calendering, and coating equipment adapted to lithium-ion battery and supercapacitor production; testing institutions develop targeted testing methods and standards; research institutions cooperate with enterprises to conduct research on the adaptation of dry process technology with next-generation battery materials and supercapacitor electrode materials, forming a collaborative industrial ecosystem integrating "equipment - materials - manufacturing - testing."

III. Future Outlook: Parallel Advancement of Technological Iteration and Scenario Expansion

In the future, lithium-ion dry process technology will continue to evolve in two key directions—"technological optimization" and "scenario expansion"—with simultaneous breakthroughs in lithium-ion batteries and supercapacitors. On the technological front, processes will move toward greater "precision and integration," leveraging AI to optimize material ratios and electrode structures for improved product performance. Additionally, the integration of dry process technology with next-generation battery technologies such as solid-state batteries and sodium-ion batteries, as well as supercapacitors enhanced by new carbon materials (e.g., graphene and carbon nanotubes), will drive greater breakthroughs in the new energy industry. On the scenario front, as technology matures and costs decline, dry process technology will penetrate beyond current core scenarios into consumer electronics, smart homes, distributed energy storage, and other fields, achieving full-scenario coverage.

The application and promotion of lithium-ion dry process technology have not only reconstructed the manufacturing logic of lithium-ion batteries and supercapacitors but also reshaped the development pattern of the entire energy storage industry. It serves as a "tool" for cost reduction and efficiency improvement, an "engine" for green transformation, and a "carrier" for technological innovation. With the continuous iteration and large-scale application of dry process technology, the energy storage industry will move toward a new stage of "high performance, low cost, and low emissions," injecting strong momentum into the development of new energy vehicles, energy storage, smart grids, industrial manufacturing, and other fields, and accelerating the global achievement of "dual carbon" goals.