As lithium-ion batteries scale rapidly across EVs, ESS/BESS, and industrial applications, one reality has become clear: cell inconsistency is the root cause of most downstream failures. Even marginal differences in voltage or internal resistance at the cell level can cascade into capacity imbalance, thermal hotspots, reduced cycle life, and safety risks at the module or pack stage.
This is where precision prismatic cell sorting becomes mission-critical—and where Semco Infratech’s SI-C 10C SMP Prismatic Cell Sorter plays a decisive role.
The Hidden Cost of Poor Cell Matching
Many battery manufacturers focus heavily on welding, BMS logic, or enclosure safety—yet overlook the foundation: cell uniformity. Without accurate grading:
- Packs age faster due to weakest-cell dominance
- Thermal imbalance increases cooling load and fire risk
- Warranty failures rise, eroding customer trust
- BESS performance guarantees become harder to meet
In grid-scale BESS, a single underperforming cell can compromise entire racks, containers, and contractual performance guarantees.
Semco SI-C 10C SMP: Built for Modern Prismatic Cell Lines
The Semco SI-C 10C SMP is designed as a pre-module, pre-pack quality gate. It ensures that only cells with closely matched electrical characteristics move forward into assembly.
Application Scope
- Cell type: Prismatic lithium-ion cells
- Cell size compatibility: Length: 50–260 mm Width: 10–80 mm Height: 50–250 mm
This wide compatibility allows manufacturers to handle multiple form factors and chemistries on the same platform—ideal for evolving EV and ESS product lines.
What the SI-C 10C SMP Measures—and Why It Matters
1. Voltage Measurement (0.000–6.000 V)
Voltage consistency is the first indicator of cell health and SOC alignment. Even small voltage spreads can:
- Increase balancing losses
- Create non-uniform aging
- Reduce usable pack capacity
The SI-C 10C SMP offers ultra-high voltage resolution, enabling manufacturers to set tight sorting windows for premium applications.
2. Internal Resistance Measurement (0.0–999.9 mΩ)
Internal resistance is the silent killer in battery packs. Cells with higher IR:
- Generate more heat under load
- Suffer higher energy losses
- Age faster under cycling
Using high-speed precision testers (Hioki 3561 / 3561A or HK3560), the SI-C 10C SMP delivers:
- Voltage accuracy up to 0.00005 V
- Internal resistance accuracy up to 0.01 mΩ
This level of precision is critical for fast-charging EV packs and high-C-rate BESS systems.
Throughput Built for Scale
With a production capacity of 1,500–2,000 cells per hour, the SI-C 10C SMP is designed for:
- Mid- to high-volume EV battery lines
- Commercial and grid-scale BESS factories
- Multi-shift industrial operations
Unlike lab-grade testers, this system is optimized for continuous production environments, not just sampling.
Designed for Real Factory Conditions
The SI-C 10C SMP is built to operate reliably in production environments:
- Power: AC 220 V, 2 kW
- Compressed Air: 0.4–0.8 MPa
- Operating Temperature: 10–45 °C
- Humidity: ≤85% RH (non-condensing)
- Industrial Safeguards: Resistant to vibration, EMI, corrosive or flammable gases
This makes it ideal for both greenfield battery plants and line retrofits.
Why This Matters for EV & BESS Manufacturers
For EV battery packs, tighter IR matching translates into better acceleration consistency, longer life, and safer fast charging.
For BESS containers, accurate cell grading directly impacts:
- Thermal stability across racks
- Predictable degradation curves
- Bankability of long-term performance guarantees
In short: better cell sorting = lower lifecycle cost per kWh.
Know More About Semco Infratech’s Assembly Solutions
Explore how Semco Infratech’s automatic BESS assembly lines can transform your battery manufacturing operations. The company offers comprehensive solutions tailored to your production scale—from startup R&D operations to full commercial manufacturing volumes. Semco’s integrated approach combines state-of-the-art equipment, intelligent process management, and expert technical support to establish efficient, scalable battery production capabilities.