In October 2025, Korea’s leading tech media outlet The Elec officially confirmed that Samsung SDI has deployed Chinese company Hymson Laser’s grooving equipment in its M Line at the Cheonan factory. This signals a major shift: laser grooving has evolved from a peripheral process to a core determinant of product yield consistency—and for the first time, Chinese manufacturing has replaced Japanese and Korean suppliers at the heart of a global top-tier battery production line.
Laser grooving technology has advanced from a non-core step in battery manufacturing to a critical factor for ensuring uniformity and high yield. Samsung SDI’s selection of Chinese equipment highlights China’s overall lead in technical maturity, supply chain integration, and responsive support services.
This move by Samsung is a signal for every laser company. Opportunities don’t wait.
What Exactly Is Laser Grooving Technology?
Laser grooving might sound like just "cutting a slot," but it’s a complex task involving micron-level precision1, non-contact execution, and advanced thermal control.
It involves high-frequency, high-energy-density laser cutting on electrode sheets, demanding micron-level accuracy, high throughput, and exceptional stability.
Why Mechanical Cutting Isn’t Enough Anymore
-
Mechanical tools wear down easily, affecting dimensional accuracy
-
For flexible or next-gen electrode materials, laser’s minimal heat impact is more suitable
Technical Demands of Laser Grooving
| Item | Requirement |
|---|---|
| Repetition Rate | >100kHz |
| Heat-Affected Zone | <10μm |
| Tolerance | Within ±3μm |
| Continuous Operation | >24h with no power fluctuation |
This puts intense demands on the laser source’s output stability, control precision, and thermal management. Any "fluctuation" can affect the entire production line’s yield.
Why Did Samsung SDI Choose Chinese Equipment?
A top-tier Korean battery maker selecting Chinese suppliers for core equipment is not about cost—it’s about trust in technology.
Samsung SDI prioritizes whether the equipment can support its global standardized, modular, and low-failure-rate operations. Chinese suppliers now offer industrial-grade maturity2 and fast customization capabilities.
What Does Samsung Really Care About?
-
Standardization: Equipment that can be replicated across global factories
-
Delivery Guarantees: Tight project schedules leave no room for delays
-
Service Responsiveness: Localized support is now mission-critical
Chinese equipment makers, tested under extreme demand during China’s EV battery boom, are uniquely suited to match Samsung’s expansion pace.
How Did Hymson Laser Enter Samsung’s flagship R&D and validation line?
Not every supplier qualifies for Samsung SDI’s flagship R&D and validation line at the Cheonan factory—Samsung’s validation hub for cutting-edge technologies.
Breaking into the flagship R&D and validation line means surviving the strictest stability testing, co-developing processes with clients, and meeting rigorous traceability standards. This isn’t just tech capability—it’s systemic readiness.
Three Key Barriers:
-
Long stability verification cycles (6–12 months typical)
-
Collaborative process development (fine-tuning laser parameters with Samsung)
-
Complete traceability (full documentation and test data protocols)
This requires synergy between the laser source, software, scanning module, and heat management system. Hymson’s strength lies in system engineering.
The Heart of a Laser Grooving System: The Laser Source
The laser source is not an accessory—it’s the foundation.
It defines the system’s process window, affects yield, and determines overall Total Cost of Ownership (TCO)3.
Why Is It So Crucial?
-
High repetition rate → higher control complexity
-
Pulse width stability → affects groove quality
-
Power consistency → impacts ablation shape and repeatability
MOPA architecture4 and tight coordination between seed and amplifier modules create extremely high demands for laser manufacturers.
What’s Behind China’s Rise in Laser Equipment?
It’s not just one tech leap—it’s full value chain optimization.
From laser chips to heat sinks, software to support, Chinese suppliers are evolving into full-stack solution providers5.
Core Capabilities:
| Module | Key Capability | Customer Value |
|---|---|---|
| Laser Source | High rep-rate, thermal control, long lifespan | Minimize downtime |
| System Integration | Beam shaping, error compensation | Improve equipment yield |
| Software | Waveform and pulse modulation | Adapt to various materials |
| Support | Overseas deployment, remote diagnostics | Maximize service efficiency |
What Can Vivlaser Offer for Grooving Equipment?
As a laser module manufacturer, Vivlaser is a true “heart supplier.”
We deliver high-stability, high-efficiency, thermally optimized laser sources—ideal for integration into laser grooving systems.
Our Key Strengths:
-
Custom wavelengths (808/885/976nm and others)
-
Lifespan >20,000 hours, failure rate <0.5%
-
Proprietary thermal control modules for high-frequency operation
-
Compact form factor for easy system integration
Our mission: help equipment makers reduce tuning time, lower maintenance, and enhance customer satisfaction.
Who’s Next in Line Among Korean Battery Giants?
LG, SK, and Samsung are all scaling globally, generating major demand for standardized and service-ready equipment systems.
Chinese laser providers with global delivery capacity and modular solutions stand to benefit the most.
But challenges remain:
-
Export certification hurdles
-
Software localization
-
Fast service and repair networks
This is the real test for China’s global competitiveness.
Why Has Overseas Demand Become the New Battleground?
In China, the battle is on cost. Abroad, it’s about reliability and systems readiness.
Global customers value long-term operational stability, not just price tags.
Whoever delivers localized support + remote diagnostics + stable parts supply will win pricing power with OEMs worldwide.
How Fast Are Chinese Lasers Replacing Imports?
This is not a forecast—it’s happening now.
From usable to preferred in just five years, domestic laser brands now grow at 30%+ annually.
In blue, high-power pump, and high-frequency pulsed lasers, companies like Vivlaser are matching—and in thermal control and delivery—surpassing imports.
Customers Don’t Want “Cheap Gear”—They Want Fast, Reliable Solutions
Serious industrial buyers care about lifecycle ROI, not upfront cost.
A great laser = less downtime, faster integration, and long-term stable output. That’s what drives reorders.
Vivlaser is winning trust through tech, responsiveness, and long-term reliability.
Conclusion
Chinese laser systems are no longer "cheap alternatives." They’re the core of global high-end manufacturing.
-
Understanding micron-level precision is crucial for grasping the intricacies of laser grooving technology and its applications. ↩
-
Learn about industrial-grade maturity and its importance in ensuring reliable and efficient manufacturing processes. ↩
-
Understanding TCO is essential for evaluating the long-term value and efficiency of laser systems. ↩
-
Exploring MOPA architecture will provide insights into advanced laser designs and their benefits in precision applications. ↩
-
Explore this link to understand how full-stack solution providers enhance the laser equipment industry. ↩
