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DOWSTONE

CN

Solid-State Battery Key Materials

Performance breakthroughs in solid-state batteries are highly dependent on innovation and optimization across the material system. The Company is committed to becoming a full-stack materials solution provider for solid-state batteries and is prioritizing high-energy-density roadmaps. We have established a comprehensive footprint spanning key SSB materials—single-walled carbon nanotubes (SWCNTs), high-nickel ternary precursors, lithium-rich manganese-based (LRM) precursors, silicon-carbon anodes, sulfide/oxide electrolytes, and lithium-metal anodes—and rigorously follow a "commercialize one generation, develop one generation, and reserve one generation" R&D philosophy. This ensures stable supply for current markets while securing a first-mover position in SSB technology iterations, serving power batteries, consumer electronics, and energy storage across multiple scenarios.


[Single-Walled Carbon Nanotubes]


The Company's proprietary SWCNT powder delivers superior performance, with key metrics—purity, BET specific surface area, and Raman G/D ratio—matching comparable products from top global players and surpassing them on selected indicators, fully meeting the stringent purity requirements of high-end applications. The Company has established stable large-scale production capacity of 50 tonnes/year of SWCNTs. Leveraging in-house SWCNT powder together with proprietary oil-based and water-based dispersants, we have developed oil-based and water-based SWCNT slurries that further enhance the conductivity and processability of conductive additives, addressing high-end Li-ion battery customers' demand. We maintain close engagement with leading cell makers and are actively collaborating with solid-state battery, LMFP, silicon-anode, and conductive plastics customers to expand the application footprint of our conductive additives.


[Silicon-Carbon Anodes]


The core of the Company's novel vapor-deposited silicon-carbon anode is a proprietary porous carbon substrate. Distinctive substrates—such as activation-free porous carbon and narrowly distributed spherical porous carbon—endow the resulting Si-C anode products with high first-cycle efficiency, low swelling, and long cycle life. Specifically, half-cell ICE at 0.8 V cutoff exceeds 87%; the narrow particle size distribution (PSD) spherical Si-C anode combines low swelling with excellent kinetic performance and long cycle life even at an average particle size of 4–5 μm. This innovation gives the Company's Si-C anode products a clear competitive edge at the industry's leading level. The Company has established scalable Si-C anode production capacity, secured stable customer cooperation, and achieved volume shipments. Meanwhile, we are advancing sample validation and qualification with downstream Li-ion customers across consumer electronics, power batteries, and digital applications to further broaden market coverage.


[Solid-State Electrolytes]


The Company is focused on solid-state electrolyte development and commercialization along the two mainstream routes—oxide and sulfide. Products deliver excellent ionic conductivity: oxide electrolytes exceed 1 mS/cm? and sulfide electrolytes exceed 10 mS/cm, with the high conductivity reducing cell internal resistance and improving charge/discharge efficiency to meet high-performance SSB requirements. Supported by the commissioned SSB electrolyte pilot line, the Company is actively conducting technical alignment and product validation with multiple leading customers, has initiated low-volume supply to select customers, and is progressing through customer-side testing and certification.


替換原來的

Core Product

Single walled carbon nanotube powder/slurry

The performance of the company's single-walled tube powder products, such as purity, ratio table, G/D value, etc., is comparable to that of imported single-walled tubes. The company's single wall pipe slurry uses self-developed dispersants, which also outperform imported products in viscosity, solid content, and other indicators.

Silicon-carbon anode

The core of the company's new gas-phase silicon carbon negative electrode is the independently developed porous carbon matrix. The unique porous carbon matrix, such as non activated porous carbon matrix and spherical porous carbon matrix with very concentrated particle size, creates corresponding silicon carbon negative electrode products with high first effect, low expansion, and long service life.

Solid-state electrolyte

The company's sulfide and oxide electrolytes have achieved high ionic conductivity and good chemical compatibility, especially the solid-state batteries using this electrolyte have maintained high capacity and efficiency after multiple cycles, demonstrating excellent rate performance and long cycle stability. We are actively conducting sample testing with multiple leading enterprises.