HomeAdvancing High-Power Missions: Mindway Full-Tab 21700 & 46950 Cells
2026-01-04
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Executive Summary
The global shift toward electrification in electric vehicles (EVs), electric aviation (eVTOL), and renewable energy storage systems demands batteries with higher energy density, lower resistance, faster charging, and safer performance.
Mindway’s full‑tab cylindrical lithium‑ion batteries — the 21700 lithium‑ion cell and the 46950 cylindrical cell — are engineered to meet these challenges. By leveraging full‑tab technology, these cells deliver high discharge rates, superior thermal stability, and long cycle life, setting a new benchmark for advanced cylindrical battery solutions.
1. Why Full-Tab (Tabless) Architecture Matters?
Conventional cylindrical cells rely on single‑tab electrode connections, which create bottlenecks in current flow, raising internal resistance and generating heat.
Mindway’s full‑tab cylindrical battery design eliminates these limitations:
Ultra-Low Internal Resistance: By eliminating the traditional tab bottleneck, our Full-Tab architecture drastically reduces Internal Resistance (IR), allowing for cooler operation during sustained high-current discharge.≤ 4 mΩ (21700) and ≤ 1.0 mΩ AC (46950)
Superior Thermal Stability: The tabless design provides a larger path for heat dissipation, ensuring thermal uniformity and preventing hotspots in high-density packs.
High discharge rates: continuous 40A (21700) and 185A (46950)
Enhanced safety & cycle life: stable performance across hundreds of cycles
This makes Mindway cylindrical lithium‑ion batteries ideal for demanding EV, eVTOL, and industrial applications.
Rapid Charging: Support for high-C rate charging ensures your systems are mission-ready in record time.
2. Technical Specifications of Mindway Full-Tab Cylindrical Cells
Table 1. Mindway 21700 Lithium-Ion Cell
Parameter | Specification |
Nominal Capacity | 5000 mAh (min 4950 mAh) |
Nominal Voltage | 3.6 V |
Max Continuous Discharge | 40A (90A with thermal cut-off) |
Pulse Discharge | 140A (3s) |
Max Charge Current | 15A |
Internal Impedance | ≤4 mΩ |
Operating Temp. | Charge: 0~45°C; Discharge: -20~60°C |
Cycle Life | ≥500 cycles @ 60% capacity retention |
Dimensions | Ø ≤21.5 mm × H ≤70.5 mm |
Weight | ≤75 g |
Key Benefits: High power density, low impedance, ideal for compact EV packs, drones, robotics, and power tools.
Table 2. Mindway 46950 Cylindrical Cell
Parameter | Specification |
Nominal Capacity | 37.0–38.0 Ah |
Nominal Voltage | 3.53 V |
Max Continuous Discharge | 5C ≈ 185A |
Max Pulse Discharge | 8C ≈ 296A (30s) |
Max Continuous Charge | 4C ≈ 148A |
Internal Resistance | ≤1.0 mΩ (AC); ≤3.0 mΩ (DC) |
Operating Temp. | Charge: 0~45°C; Discharge: -20~55°C |
Cycle Life | ≥1000 cycles @ 70% capacity retention |
Dimensions | Ø 46.35 ±0.30 mm × H 95 ±0.3 mm |
Weight | ~400 g |
Key Benefits: Ultra-high capacity, powerful discharge capability, optimized for electric aviation, commercial EV battery packs, and renewable energy storage systems.
Mindway Full-Tab Cylindrical Batteries：25C 5000mAh High Power & Long Cycle
3. Performance Comparison of 21700 vs. 46950 Cylindrical Batteries
Feature | 21700 Lithium-Ion Cell | 46950 Cylindrical Cell |
Application | Compact, high-power devices | Large-scale EV, eVTOL, ESS |
Capacity | 5 Ah | 37–38 Ah |
Energy per Cell | ~18 Wh | ~130 Wh |
Max Continuous Power | 144 W | 653 W |
Pulse Power | ~500 W | >1000 W |
Energy Density | ~240 Wh/kg | ~325 Wh/kg |
Cycle Life | 500 cycles | 1000 cycles |
4. Versatile Performance for Drones, Robotics, and eVTOL
Mindway’s cylindrical lithium‑ion batteries are engineered for diverse industries:
21700 Full-Tab Lithium-Ion Cell:
Compact applications demanding high discharge rates and fast charging, including electric scooters, drones, robotics, power tools, and portable energy storage devices.
46950 Full-Tab Cylindrical Battery:
Large‑scale and mission‑critical systems such as eVTOL aircraft, commercial electric vehicles, marine propulsion, and renewable energy storage systems (ESS).
5. Safety & Reliability Testing
Mindway batteries comply with UN38.3, IEC 62133, and aviation‑grade safety standards. Tests include:
Overcharge and over‑discharge
Short‑circuit and crush tests
Thermal abuse (130°C heating)
Vibration, drop, and low‑pressure tests
Result: No fire, no explosion — ensuring maximum safety for critical applications.
6. Conclusion
Mindway’s full‑tab cylindrical lithium‑ion cells deliver an ideal balance of energy density, high discharge capability, and safety.
The 21700 full‑tab battery is optimized for compact high‑power devices.
The 46950 cylindrical cell is designed for aviation, EV, and grid‑scale energy storage.
With advanced full‑tab technology, Mindway provides the next generation of cylindrical batteries that empower industries to build faster, safer, and more reliable energy systems.
Mindway Cylindrical Lithium-Ion Batteries – Power Beyond Limits.
FQA
Q: What is the benefit of Full-Tab (Tabless) technology in 21700 batteries?
A: Full-Tab technology eliminates the current bottleneck of standard battery tabs, resulting in significantly lower internal resistance and less heat generation. This allows the 21700 cell to handle much higher discharge rates and charge faster than traditional designs.
Q: Can Mindway 46950 cells be used in eVTOL or heavy-lift drones?
A: Yes, the Mindway 46950 cell is specifically engineered for high-performance applications. Its large-format cylindrical design combined with full-tab technology provides the high energy density and power delivery required for eVTOL and heavy-lift UAV missions.
