Kingchi 26650 Sodium-Ion Cell | OEM Manufacturer & Bulk Supply
Kingchi 26650 Sodium-Ion Cell | OEM Manufacturer & Bulk Supply
Wholesale Kingchi 26650 sodium-ion cylindrical cells (3050mAh, 3.0V). Cobalt-free rechargeable cells for e-bikes, energy storage & power tools.
Flexible MOQ and competitive pricing for bulk orders!
Description
The Kingchi 26650 Sodium-Ion Cylindrical Cell represents a major development in cobalt-free energy storage, offering an optimized 3050mAh nominal capacity and 3.0V standard voltage class for high-drain and temperature-sensitive applications. Engineered specifically for commercial B2B applications, this 9.15Wh sodium-ion rechargeable cell serves as a direct drop-in solution or core building block for e-bikes, power tools, portable electronic devices, and stationary energy storage systems (ESS). As an established industrial battery manufacturer, Kingchi provides volume supply, technical integration, and scalable contract manufacturing to global distributors, sourcing managers, and OEM/ODM buyers looking to diversify their battery supply chain with sustainable, high-safety alternatives.
Commercial Deployment and Application Scenarios
The shift toward sodium-ion chemistry is driven by resource availability, cost stability, and operational safety. The Kingchi 26650 cylindrical cell is designed to meet the technical requirements of several high-growth commercial sectors.
Light Electric Vehicles and E-Bikes
Urban micromobility fleets require battery cells that can withstand frequent charge cycles, rapid acceleration, and exposure to fluctuating outdoor temperatures. The 26650 form factor provides a mechanically robust casing that simplifies pack assembly for e-bikes, e-scooters, and utility delivery carts. Sourcing managers choose sodium-ion cells for fleet applications due to their safety profile and lower risk of thermal runaway in high-density urban parking zones.
Industrial and Residential Energy Storage Systems
For stationary energy storage, volume energy density is often secondary to long-term cost per kilowatt-hour (kWh) and material sustainability. The cobalt-free chemistry of the Kingchi 26650 cell protects large-scale ESS projects from the volatile pricing cycles associated with traditional lithium raw materials. This makes sodium-ion cells highly competitive for telecom backup power, off-grid solar arrays, and commercial peak-shaving systems.
Portable Power Tools and Industrial Field Equipment
Power tools and industrial measurement equipment demand high power delivery and physical durability. The cylindrical 26650 steel-can construction offers high structural resistance to drops, vibrations, and mechanical impact. This makes the cells ideal for construction site tools, mining instrumentation, and agricultural monitoring hardware operating under rugged conditions.
Cold-Chain Logistics and Low-Temperature Devices
Traditional lithium-ion batteries suffer severe capacity loss and plating when operated or charged at sub-zero temperatures. The chemical kinetics of sodium-ion technology allow Kingchi 26650 cells to maintain excellent discharge performance in cold climates. They are widely specified for outdoor environmental sensors, arctic exploration gear, and refrigerated warehouse logistics machinery.
Technical Advantages and Electrochemistry of Sodium-Ion Technology
To successfully integrate the Kingchi 26650 cell into your product line, it is essential to understand the underlying electrochemistry and mechanical advantages of this battery technology.
Cobalt-Free Chemical Architecture
The cathode of the Kingchi 26650 cell is constructed without cobalt or nickel, utilizing abundant sodium-based transition metal oxides instead. This structural composition yields several direct benefits for bulk purchasers:
- Price Stability: Lower dependence on rare-earth minerals minimizes the risk of sudden raw material cost increases during long-term procurement contracts.
- Eco-Friendly Manufacturing: Simplified material extraction reduces the overall environmental footprint, helping enterprise buyers meet corporate sustainability targets.
- Supply Chain Security: Abundant global sodium resources ensure continuous production capacity and shorter manufacturing lead times.
Low-Temperature Performance and Resiliency
The transfer kinetics of sodium ions remain highly active even at lower temperatures, which limits the internal resistance growth that plagues lithium-based cells. This performance characteristic ensures that devices operating in cold climates do not experience sudden voltage drops or premature shutdown. For industrial field operations, this translates to predictable uptime and reduced field servicing costs.
High Safety Profile and Thermal Stability
Sodium-ion cells exhibit high thermal stability under electrical abuse, such as overcharging or external short circuits. The internal chemical structure has a higher resistance to thermal runaway compared to high-energy-density lithium chemistries. This thermal resilience simplifies the design of protective battery management systems (BMS) and reduces the structural thermal insulation requirements in multi-cell battery packs, directly lowering overall engineering costs.
OEM/ODM Customization and Scalable Production Capacity
Kingchi supports industrial buyers with comprehensive contract manufacturing, private label production, and custom battery pack engineering. Whether you require loose cylindrical cells or complete integrated energy systems, our facility in Guangdong Province is configured to manage complex bulk requirements.
Custom Battery Pack Assembly
For clients requiring turnkey power systems, Kingchi engineers custom configurations utilizing our proprietary 26650 cells. We design, weld, and test custom battery pack solutions to meet specific dimensional, voltage, and current output parameters. Our integration capabilities include:
- Custom nickel-strip configurations and automated spot-welding.
- Integration of protective BMS circuits with SMBus, I2C, CANbus, or RS485 communication protocols.
- Custom injection-molded enclosures or heavy-duty shrink-wrap protection for rugged environments.
- Thermal management design to ensure even temperature distribution across large packs.
Production Workflow
- Cell Sorting & Matching
- Laser Welding & Busbar Assembly
- BMS Integration & Wiring
- Functional & Safety Testing
Private Labeling and Packaging Customization
We provide custom-branded shrink sleeves, bespoke serial numbering, and clear tracking codes to support integration with your inventory management systems. For industrial distributors, we design and produce custom outer retail or industrial cartons with custom logos and technical safety markings compliant with destination-port shipping regulations.
Sourcing, MOQs, and Container Logistics
As an export-oriented manufacturer, Kingchi optimizes shipping configurations to lower landed costs for overseas buyers.
- Minimum Order Quantities (MOQ): We support initial sampling and pilot runs for OEM design evaluation, with standard commercial volume pricing applying to production runs.
- Palletization and Loading: Cells are packed in UN-compliant, drop-tested inner packaging nested within master cartons. Pallets are optimized for standard 20ft and 40ft container dimensions to prevent movement during sea transit.
- Logistics Documentation: All shipments are accompanied by standard Material Safety Data Sheets (MSDS), cell specification sheets, and proper hazardous goods classification packaging lists to ensure smooth customs clearance.
Technical Specifications: Kingchi 26650 Sodium-Ion Cell
| Technical Specifications | Commercial Standards & Details |
|---|---|
| Brand | Kingchi |
| Model | 26650 Sodium-Ion Cell |
| Battery Chemistry | Sodium-Ion (Na-ion) Rechargeable |
| Physical Form Factor | 26650 Standard Cylindrical |
| Nominal Capacity | 3050mAh |
| Standard Voltage Class | ~3.0V (Typical for Sodium-Ion) |
| Nominal Energy | ~9.15Wh (Calculated at 3.0V) |
| Cathode Formulation | Cobalt-Free Chemistry |
| Primary Advantages | Low-temperature resilience, enhanced safety, cost stability |
| Environmental Compliance | Compliant with applicable international standards upon request |
| Customization Options | Private labeling, customized tabs, multi-cell pack assembly |
| Typical Target Applications | E-bikes, power tools, portable electronics, backup ESS |
| Factory Location | Huizhou City, Guangdong Province, China |
Executive Manufacturing Statement
“Our industrial focus at Kingchi is centered on electrochemical consistency. We recognize that for bulk distributors and OEM manufacturers, cell-to-cell variance in capacity, internal resistance, and self-discharge rates is the single largest driver of pack-level failure. By utilizing automated winding machinery, precision slurry deposition, and rigorous post-production aging cycles, we ensure that every 26650 sodium-ion cell leaving our Guangdong facility meets strict quality tolerances, providing our global clients with predictable, repeatable performance in the field.”
Quality Assurance and Factory Operations
Kingchi operates a fully systematized manufacturing workflow to guarantee the reliability of our sodium-ion supply. Every cell undergoes a multi-stage testing process before packaging.
Comprehensive Inspection Protocol
1. Incoming Quality Control (IQC)
Every batch of raw materials, including the cobalt-free cathode compounds, sodium electrolyte mixtures, and steel cylindrical cans, is tested for purity, particle size distribution, and physical dimensions before entering the assembly cleanrooms.
2. In-Process Quality Control (IPQC)
Automated optical inspection (AOI) systems monitor electrode coating uniformity, thickness, and alignment during the high-speed winding process. Humidity and temperature are strictly controlled to prevent moisture contamination in the electrolyte filling zone.
3. Final Quality Control (FQC)
Once sealed, cells are subjected to controlled formation and aging cycles. We measure and record high-precision electrochemical parameters:
- Open Circuit Voltage (OCV) testing.
- AC Internal Resistance (AC IR) matching.
- Capacity grading under controlled ambient conditions.
- Self-discharge rate monitoring over a minimum 14-day storage period.
Standardized Industrial Export Packaging
All bulk shipments of Kingchi 26650 cells are packaged to withstand the mechanical stresses of international shipping. Cells are placed in custom-molded plastic trays to isolate individual terminals and prevent short-circuiting. The trays are placed within rigid, moisture-resistant cardboard outer cartons, which are then stacked, stretch-wrapped, and strapped onto heavy-duty wooden pallets.
FAQ for Bulk Procurement
Q: How do the temperature performance characteristics of the Kingchi 26650 Sodium-Ion cell compare to standard Lithium-Ion cells?
A: Sodium-ion cells maintain a significantly higher percentage of their nominal capacity at sub-zero temperatures (down to -20°C and below) compared to standard lithium-ion chemistries. They do not experience the rapid rise in internal resistance or lithium-plating hazards associated with low-temperature charging, making them highly suitable for cold-chain, high-altitude, and outdoor winter applications.
Q: Can Kingchi supply complete customized battery packs using these 26650 sodium-ion cells?
A: Yes. We offer comprehensive OEM/ODM battery pack engineering services. We design and assemble complete battery systems, including custom series-parallel cell configurations, industrial plastic or metal enclosures, wiring harnesses, and custom-programmed Battery Management Systems (BMS) to match your specific voltage and discharge requirements.
Q: What is the typical lead time and MOQ for a custom private-label production run?
A: For standard cells with custom labeling or packaging, the typical production lead time is 25 to 35 days, depending on our current factory queue. The minimum order quantity (MOQ) for custom private-label runs is typically determined by the volume of raw materials required; please contact our sales department with your specific project specifications for a precise volume quote.
Q: How are these cells classified for ocean and air shipping, and what documentation is provided?
A: Sodium-ion cells are classified as Class 9 hazardous goods for transport. Kingchi provides full logistical support, including up-to-date Material Safety Data Sheets (MSDS) and drop-test documentation. We prepare all packaging and documentation to ensure smooth transit and customs clearance at your destination port.
📬 Ready to Elevate Your Business? Contact Our Expert Team!
Looking for a reliable manufacturer or custom OEM/ODM solutions? Get in touch with Kingchi today for a quick quote and product samples.
- 📧 Email: sales@Kingchipower.com
- 📞 Phone/WhatsApp: +86 17807659568
- 🏢 Factory Address: 2nd Floor, Building B, Zhiqiang High-tech Industrial Park, Sjiaolou, Luoyang Sub-district, Boluo County, Huizhou City, Guangdong Province, China
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