SK
Grade A
66.5Ah
3.7v
940g
301 × 112 × 13.6
≥ 3000 times
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MISEN SK-Based NCM Lithium-Ion Pouch Cell (3.7V 66.5Ah) is a large-capacity lithium-ion battery cell designed for applications that require stable output, long cycle life, and consistent electrochemical performance. Built on an SK-based NCM chemistry system, this pouch cell offers a balanced combination of energy density, reliability, and manufacturability for battery pack integration.
With a nominal voltage of 3.7V and a single-cell capacity of 66.5Ah, this pouch cell enables higher energy per cell, allowing designers to reduce the number of parallel cells in a module. This can help simplify electrical architecture, improve pack consistency, and reduce interconnection complexity in medium to large battery systems.
The cell is designed to support a continuous 1C charge and discharge rate, delivering stable current output and controlled thermal behavior under typical operating conditions. This makes it suitable for applications where predictable performance, controlled heat generation, and long-term operational stability are required.
Compared with smaller-capacity pouch cells, the 66.5Ah format helps improve energy density at the module level while reducing the total number of cells required. This contributes to improved system reliability, lower assembly complexity, and more efficient use of space within battery enclosures.
This product page is intended for engineers, system integrators, and procurement teams evaluating SK-based NCM lithium-ion pouch cells for battery module and pack development. Detailed specifications, mechanical dimensions, and technical parameters are provided below to support technical assessment and project planning.
SK-based NCM chemistry system: Built on a proven SK-based NCM lithium-ion chemistry platform, offering a balanced combination of energy density, cycle stability, and manufacturing consistency for long-term battery applications.
Large-capacity pouch cell design (66.5Ah): High single-cell capacity reduces the number of parallel cells required in battery modules, helping simplify electrical design, lower interconnection complexity, and improve overall pack consistency.
Stable 1C continuous charge and discharge capability: Designed to support continuous 1C operation with controlled thermal behavior, ensuring stable voltage output and predictable performance under sustained load conditions.
Optimized laminated pouch structure: The laminated aluminum pouch design supports efficient heat dissipation and mechanical flexibility, contributing to improved space utilization and structural adaptability in battery module integration.
Cell grading and matching support: Capacity, open-circuit voltage (OCV), and internal resistance screening can be applied to enhance cell-to-cell consistency, which is critical for module balancing and long-term system reliability.
OEM/ODM-friendly supply and customization: Suitable for custom battery module and pack development, with support for labeling, insulation options, packaging formats, and technical coordination from sampling to mass production.
The following specifications are provided for engineering evaluation. For mass production projects, final values and tolerances can be confirmed by the official datasheet and batch test records.
| Item | Specification |
|---|---|
| Brand | MISEN |
| Model number | S004A / 66.5Ah |
| Product name | SK-Based NCM Lithium-Ion Pouch Cell |
| Cell type | Liquid electrolyte lithium-ion pouch cell |
| Chemistry / cathode | NCM (SK-based chemistry system) |
| Battery size (nominal) | 3.7V 66.5Ah |
| Nominal capacity | 66.5Ah |
| Nominal voltage | 3.7V |
| Charge cut-off voltage | 4.2V (typ.) |
| Discharge cut-off voltage | To be confirmed by datasheet (per operating window) |
| C-rate | 1C continuous charge & discharge |
| Stable output / discharge capability | ≥ 1C (stable output) |
| Cycle life | 3000 cycles (reference) |
| Operating temperature (charge) | 0°C to +45°C |
| Operating temperature (discharge) | -10°C to +45°C |
| Dimensions (L × W × T) | 301 × 110 × 13.6 mm |
| Weight | 0.94 kg |
| Recommended applications | Battery module & pack integration; backup power; industrial and telecom power systems |
| Supply ability | 10000 Units per Week |
| OEM / ODM | Supported (labeling, insulation options, packaging format, technical coordination) |
| Certifications / documents | UN38.3, MSDS, CE, RoHS (UL available per project) |
| Place of origin | Guangdong, China |
Notes: Values above are for reference. For module design, we recommend confirming the discharge cut-off voltage, continuous/peak current limits, internal resistance range, and standard charge method (CC/CV). If you share your target system requirements, we can recommend a suitable operating window and integration guidance.
Missing-but-recommended parameters (you can provide them, and I will update the table immediately): standard charge rate (A or C), max charge rate (A or C), max continuous discharge current (A), peak discharge current (A, seconds), internal resistance (mΩ), typical nominal energy (Wh), and detailed cycle life conditions.
This cell adopts a laminated pouch cell structure designed for battery module and pack integration. The pouch format is widely used in high energy density battery designs as it supports flexible mechanical layout, efficient space utilization, and adaptable thermal interface design. For engineering evaluation, the key mechanical considerations include overall dimensions, thickness tolerance, tab position, and the recommended clamping or compression method inside the module.
In practical module design, large-format pouch cells typically require stable mechanical support and controlled compression to maintain consistent electrochemical performance throughout the cycle life. We recommend defining the fixture structure early, including compression plates, insulation layers, busbar routing, and thermal interface materials, to ensure reliable long-term operation and repeatable assembly.
Below is the mechanical summary for quick integration review based on the current product configuration. For projects requiring detailed tolerance control or customized tab geometry, a mechanical drawing can be provided for further verification and layout optimization.
| Mechanical item | Specification |
|---|---|
| Cell form factor | Laminated lithium-ion pouch cell |
| Overall dimensions (L × W × T) | 301 × 110 × 13.6 mm |
| Weight | 0.94 kg |
| Tab structure | Dual tabs (as shown in product images); tab material, thickness, and dimensions to be confirmed by drawing |
| Recommended module design notes | Apply uniform clamping or compression, proper insulation, and a consistent thermal interface to enhance long-term stability and cycle consistency |
Integration checklist (recommended): Please confirm your module internal space, cooling method (air, cold plate, or liquid), busbar or flexible connector approach, and target continuous and peak current. Based on this information, we can provide fixture suggestions, compression guidance, and an optimized layout proposal for your application.
The MISEN SK-based NCM lithium-ion pouch cell (3.7V 66.5Ah) is suitable for applications that require stable energy delivery, consistent cell performance, and compact integration. Its large single-cell capacity and controlled 1C operating profile make it well suited for battery systems where reliability, repeatability, and module-level consistency are key design considerations.
| Application area | Why this pouch cell fits |
|---|---|
| Battery modules & pack integration | Large single-cell capacity (66.5Ah) reduces the number of parallel cells required, helping simplify module architecture, improve consistency, and reduce interconnection complexity in battery pack design. |
| Backup power & stationary power units | Stable 1C charge and discharge capability supports predictable output and controlled thermal behavior, making the cell suitable for stationary and backup power systems that prioritize long-term reliability. |
| Industrial and telecom power systems | Consistent voltage behavior and stable discharge characteristics support industrial and telecom power equipment that requires continuous operation and predictable performance under defined load conditions. |
| Customized energy solutions (OEM / ODM) | The pouch cell format enables flexible mechanical layout and thermal interface design. Capacity grading, matching, and customization support make it suitable for tailored battery solutions and project-based energy applications. |