Visit us at Booth #24036 to see how our high-energy and high-power 18650 and 21700 cells are enabling next-generation drones, robotics, and the broader uncrewed ecosystem #Rincell #XPONENTIAL2026 #BatteryTechnology #DroneTechnology #UAV #UAS #Robotics #AutonomousSystems #DefenseTech
About us
Rincell Corporation was founded to accelerate the electrification of high-impact carbon emission products, fostering a sustainable future with a secure supply chain. Rincell is committed to Domestic & Allied manufacturing of its high energy and power Silicon-Graphite, & Sodium-ion batteries for government and commercial applications. Rincell is now shipping volume production of 18650 and 21700 Silicon-Graphite cell formats from Asia, with US production slated for 2H’2026.
- Website
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http://www.rincell.com
External link for Rincell
- Industry
- Manufacturing
- Company size
- 11-50 employees
- Headquarters
- San Francisco Bay Area
- Type
- Privately Held
- Founded
- 2023
Locations
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Primary
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San Francisco Bay Area, US
Employees at Rincell
Updates
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Rincell reposted this
Excited to share that our INR18650RC41 high-energy 18650 cell is now available in the Batemo GmbH Cell Explorer. One dataset I found especially valuable is Batemo’s PRO dynamic load profile. Unlike a standard constant-current curve, this is a realistic, time-varying discharge with ~3C peak events. It provides a clear, apples-to-apples view of how the cell responds to dynamic system loads across temperature. Performance highlights from the PRO profile (relative to 25 °C): 🔋 25 °C: 11.72 Wh | 42.7 W peak ❄️ 0 °C: 87% energy retention | 92% peak power retention 🥶 −20 °C: 81% energy retention | 87% peak power retention The strong retention at −20 °C is especially relevant for applications that require consistent performance in cold environments. You can view the full standardized dataset and details directly in the Batemo Explorer. #SiliconAnode #CylindricalCells #CalendarLife #CycleLife #FastCharging #HighEnergyCells #ColdWeatherPerformance #BatteryInnovation
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As we welcome 2026, we’re grateful for the partners, customers, and team members who continue to believe in Rincell’s mission. This year, we’re focused on continued scaling of production and customer shipments of Rincell’s highest-performance silicon-graphite products, advancing sodium-ion chemistry, and translating deep R&D into reliable, real-world energy solutions—reaching newer heights in production scale, customer adoption, and commercial execution. Here’s to a year of progress, collaboration, and meaningful energy solutions. Happy New Year from all of us at Rincell. #Rincell #Lithiumion #Silicon #SodiumIon #EnergyStorage #Defense #EV #Datacenter
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Rincell reposted this
⚡ The Rincell RC41 model is available in The Voltt now Cylindrical 18650s remain essential for many legacy platforms, especially in satellites and aerospace systems that rely on established mechanical and thermal architectures. These programmes often need to reuse existing NRE (non-recurring engineering) investments, upgrading performance without re-engineering or re-qualifying entire systems. With a nearly quoted 300 Wh/kg and over 2,400 W/L, the RC41 enables exactly that, offering a path to higher performance within existing designs while maintaining a strong balance between energy and power. Made outside of China, it is also suitable for space and defence applications requiring NDAA-compliant, geopolitically secure supply chains. 🔋 Manufacturer Key specs: • Capacity: 4.1 Ah • Gravimetric Energy Density: 292 Wh/kg • Gravimetric Power Density: 875 W/kg • Max Continuous Discharge: 12.3 A Evaluating new cells for your programme? Reach out to access the RC41 data and compare its performance against 30+ other high-energy cells on The Voltt.
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Today we take a moment to honor and thank all who have served. Your courage and sacrifice inspire us at Rincell to lead with purpose and gratitude every day. Thank you, veterans. #VeteransDay #ThankYouVeterans #Gratitude #Rincell
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Rincell will be at The Battery Show in Detroit Oct 6-9. Come by booth #6546 to learn about the highest energy and performance Silicon-Graphite and Sodium-ion batteries. #TheBatteryShow #Rincell #BatteryTechnology #LithiumIon #SodiumIon #EnergyStorage
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Rincell reposted this
Cold limits performance and fast charging erodes cycle life. The RC41 18650 tackles both: 2C consecutive fast charging and reliable operation down to −40 °C—all in a high-energy format. If you need reliable performance in the extreme cold and quick turns, let’s talk https://lnkd.in/gsfsxmqw #SiliconAnode #CylindricalCells #EnergyDensity #FastCharging #CycleLife #LowTemperaturePerformance
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Rincell reposted this
🧪 Validating real-world durability: Constant-Voltage Hold + Cycle-Life testing Combining constant-voltage (CV) hold at high state of charge (SOC)—to accelerate calendar-aging mechanisms—with subsequent cycle-life testing—to measure the impact of storage on operational life—is a powerful way to assess Li-ion cell durability. We held 21700 cells at 100% SOC for seven months (CV to 4.20 V, 25 °C), then cycled them. Our high-energy 21700 cells (300 Wh/kg, 5.8 Ah) performed comparably to—or better than—Tier-1 21700 cells (Samsung 50S and 53G) across both the CV-hold phase and the post-storage cycling phase. By first stressing our cells under worst-case storage conditions, then cycling them, we validate the long-term reliability you need for demanding applications. 🚀 Now shipping at scale (RC41 4.1 Ah, 18650 / RC58 5.8 Ah, 21700) — get in touch to place your order: https://rincell.com/ #SiliconAnode #CylindricalCells #21700 #18650 #CalendarLife #ShelfLife #CycleLife #FastCharging #HighEnergyCells #BatteryInnovation #LiIonTechnology
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