E-Power Granted Landmark Patent for Multi-Element Doped Hard Carbon Composites, Accelerating Sodium-Ion Battery Commercialization
Rhea-AI Summary
E-Power (NASDAQ: EPOW) announced a granted patent dated May 8, 2026 for "A Phosphorus-Silver-Silicon Co-Doped Hard Carbon Composite" (Patent No: CN2023105784527). The patent covers a P-Ag-Si/HC material aimed at improving sodium-ion battery anodes by combining silicon, silver and phosphorus doping to boost capacity, conductivity and interface stability.
The company positions this IP as a step toward industrializing hard carbon composites for sodium-ion batteries, emphasizing low-cost operation, high charge rates and improved low-temperature performance.
AI-generated analysis. Not financial advice.
Positive
- Patent granted (CN2023105784527) strengthening IP position
- P-Ag-Si/HC composite combines Si, Ag and P to target higher capacity
- Claims improved cycling stability via interface regulation with phosphorus
- Operational advantages cited: low cost, high charge rates, low-temperature performance
Negative
- No commercial partnerships, supply agreements, or revenue impact disclosed
- No quantified performance data or third-party validation for scale-up provided
News Market Reaction – EPOW
On the day this news was published, EPOW declined 8.10%, reflecting a notable negative market reaction. Argus tracked a trough of -7.7% from its starting point during tracking. Our momentum scanner triggered 8 alerts that day, indicating moderate trading interest and price volatility. This price movement removed approximately $3M from the company's valuation, bringing the market cap to $30.03M at that time.
Data tracked by StockTitan Argus on the day of publication.
Key Figures
Market Reality Check
Peers on Argus
While EPOW was up 29.22%, peers showed mixed action: CCTG up 7.85%, while GWH and FLUX were down 10.71% and 15.38%. This indicates broader sector volatility, but EPOW’s gain outpaced and diverged from several battery peers.
Historical Context
| Date | Event | Sentiment | Move | Catalyst |
|---|---|---|---|---|
| May 07 | Battery patent grant | Positive | +29.2% | Subsidiary received a key silicon-carbon composite patent for solid-state batteries. |
| May 06 | Major microgrid deal | Positive | -19.2% | Signed multi-phase microgrid agreement with total CAPEX of $252M in California. |
| May 05 | AI power team hire | Positive | -4.2% | Onboarded NVIDIA-experienced engineers to advance high-efficiency AI power modules. |
| Mar 27 | AI optics alliance | Positive | +17.0% | Partnered with Raytel to launch 800G and 1.6T optical modules for AI data centers. |
| Mar 25 | Vietnam expansion | Positive | +28.9% | Announced Vietnam anode material expansion to build an ex-China supply chain. |
Recent positive operational and technology announcements often triggered large moves, with a mix of strong rallies and sharp selloffs.
Over the past months, EPOW has issued a series of growth-oriented updates, including AI data center microgrid agreements, new engineering talent, strategic expansion into Vietnam, and multiple battery-material and solid-state anode patents. News on March 25 and March 27 drove strong gains of 28.86% and 16.98%, while the sizeable $252M microgrid agreement on May 6 saw a -19.21% reaction. Yesterday’s solid-state battery patent aligned with a 29.22% move, showing that technology milestones can coincide with significant price swings.
Market Pulse Summary
The stock moved -8.1% in the session following this news. A negative reaction despite positive patent news would fit EPOW’s pattern of volatile responses to strategic announcements, such as the -19.21% move after a major microgrid deal. Even with advances in sodium-ion anode materials and AI power solutions, prior history shows that investors sometimes sold into good news. That backdrop highlights execution, financing structure, and overall sentiment as key factors shaping how such developments have been priced.
Key Terms
microgrid technical
sodium-ion batteries technical
anode technical
hard carbon technical
electrochemical interface technical
AI-generated analysis. Not financial advice.
DOVER, USA, May 08, 2026 (GLOBE NEWSWIRE) -- E-Power Inc. (“E-Power”, the “Company”, “we” or “our”) (NASDAQ: EPOW), a leading provider of AI Data Center (AIDC) microgrid solutions and advanced battery materials, today announced the successful patent grant and registration for its proprietary invention: "A Phosphorus-Silver-Silicon Co-Doped Hard Carbon Composite Material and Its Preparation Method" (Patent No: CN2023105784527).
The authorization of this patent marks a pivotal step in the industrialization of E-Power’s advanced hard carbon composite technologies. This achievement provides a robust foundation for the domestic transformation of research into commercial applications, driving innovation in the frontier of new material science.
Revolutionizing Sodium-Ion Battery Anodes
Hard carbon is currently the preferred anode material for the industrialization of sodium-ion batteries. Due to its low degree of structural order and large interlayer spacing, hard carbon effectively overcomes the inherent inability of traditional graphite to intercalate sodium ions.
While common composites involve pitch/resin co-carbonization or integration with conductive materials, E-Power’s P-Ag-Si/HC (Phosphorus-Silver-Silicon Co-Doped Hard Carbon) represents a high-order technical breakthrough designed to optimize performance:
- Enhanced Capacity and Stability: By incorporating high-capacity Silicon (Si) and high-conductivity Silver (Ag) into the Hard Carbon (HC) matrix, the material achieves superior specific capacity and long-term cycling stability.
- Interface Regulation: The addition of Phosphorus (P) facilitates the tuning of the electrochemical interface, effectively managing the volume expansion typical of silicon during sodium storage and addressing the conductivity limitations of standard hard carbon.
- Operational Advantages: The resulting composite maintains the core benefits of hard carbon, including low cost, high charge-discharge rates, and exceptional performance in low-temperature environments.
Driving the Future of Energy Storage
This patent reinforces E-Power’s strategic focus on diversifying its portfolio within the battery material sector. By mastering multi-element doping and pore-structure regulation, the company is providing a critical solution for the next generation of energy storage systems, particularly as the industry shifts toward cost-effective sodium-ion alternatives.
"This patent is a testament to our commitment to leading-edge material innovation," said Mr. Haiping Hu, Chairman of E-Power. "The P-Ag-Si/HC technology provides a sophisticated answer to the stability and conductivity challenges in sodium-ion batteries, positioning E-Power as a key player in the commercialization of this vital energy transition technology."
About E-Power Inc.
E-Power Inc., through its joint venture, is engaged in the manufacturing and sale of graphite anode material for lithium-ion batteries. The Company's joint venture has completed the construction of a manufacturing facility with a production capacity of 50,000 tons .The plant runs on inexpensive electricity from renewable sources, which helps to make E-Power a low-cost and low–environmental-impact producer of graphite anode material. Mr. Haiping Hu, the founder and CEO of the Company, is a major pioneer for the graphite anode industry in the world starting from 1999. The Company’s management team is also composed of experts with years of experiences and strong track-records of success in the graphite anode industry. For further information, please visit the Company’s website at www.sunrisenewenergy.com.
Forward-looking statement
Certain statements in this press release regarding the Company's future expectations, plans and prospects constitute forward-looking statements as defined by Private Securities Litigation Reform Act of 1995. Forward-looking statements include statements about plans, goals, objectives, strategies, future events, expected results, assumptions and any other factual statements that have not occurred. Any words that refer to "may", "will", "want", "should", "believe", "expect", "expect", "estimate", "estimate" or similar non-factual words, shall be regarded as forward-looking statements. Due to various factors, the actual results may differ materially from the historical results or the contents expressed in these forward-looking statements. These factors include, but are not limited to, the company's strategic objectives, the company's future plans, market demand and user acceptance of the company's products or services, technological updates, economic trends, the company's reputation and brand, the impact of industry competition, relevant policies and regulations, China's macroeconomic conditions, international market conditions, and other related risks and assumptions. In view of the above and other related reasons, we advise investors not to blindly rely on these forward-looking statements, and we urge investors to visit the SEC’s website to consult the company's relevant documents for other factors that may affect the company's future operating results. The company is under no obligation to make public amendments to changes in these forward-looking statements due to specific events or reasons unless required by law.
For more information, please contact:
The Company: IR Department
Email: IR@sunrisenewenergy.com
Phone: +1 4084890472
