As eVTOL rotors trace the city skyline, and humanoid robots step onto factory floors and into our homes, the battle for tomorrow's power source is burning white-hot. Solid-state batteries—boasting a triple advantage of superior safety, unrivaled energy density, and wide-temperature resilience—have risen as the strategic pinnacle of the global battery and energy storage race.

Solid-state batteries eliminate the separator and replace flammable liquid electrolytes with brittle solid electrolytes. Their physical characteristics fundamentally rewrite the logic of the production line—the bending stress from winding causes the electrolyte sheets to crack and shed particles, whereas only the flat stacking of lamination can apply uniform pressure and construct a tight, low resistance solid solid interface. Consequently, the mid stage of cell assembly has become the value core of the entire production line, accounting for 40%–50% of the total equipment value. How the frame is molded, how the stacking is aligned, and how the precision is stabilized directly determine the yield, safety, and electrochemical performance of solid state battery cells.

I. The Precision Benchmark for Frame Molding and High Speed Stacking

Addressing the pain points of solid state battery mid stage manufacturing, Lyric has launched its integrated plastic frame forming and stacking machine, which consolidates the two major processes—insulating frame molding and high speed electrode stacking—into a single integrated unit. This eliminates precision losses caused by multi process material handling from the very source, streamlines the production line layout, and effectively reduces the equipment footprint.

The equipment offers exceptionally strong process compatibility, accommodating two mainstream processes—"separator free lamination" and "separator free lamination with outer separator wrapping"—while being fully compatible with three major solid state electrolyte systems: sulfide, halide, and oxide. It provides customers pursuing different technical routes with a universal, reusable, and standardized equipment platform.

For critical precision metrics, the system delivers full‑process micron‑grade control:

✅ Integrated die‑cutting accuracy for electrodes: ≤ ±0.01 mm

✅ Stable stacking accuracy: ≤ ±0.1 mm

✅ Stacking alignment CPK ≥ 1.33

These three core metrics cover the entire chain of cutting, stacking, and consistency quality control, forming a complete closed‑loop precision system. Addressing the inherent brittleness of solid‑state electrolytes and their susceptibility to misalignment‑induced short circuits, the equipment’s ultimate precision control builds a dual defense line for both production yield and intrinsic safety in mass cell manufacturing.

II. A Four Tier System Tackling Core Industrialization Pain Points

Behind these parameters lies Lyric’s four tier technological system, systematically built around the pain points of solid state battery manufacturing.

1. High Precision Cutting Dimensions

Relying on an integrated die cutting process, the electrode outer dimensions suppress long term dimensional drift, ensuring that the cutting accuracy of ≤±0.01 mm remains stable over prolonged mass production, preventing incoming material deviations from compromising subsequent stacking alignment.

2. Integrated Frame Forming

The insulating frame is first formed through an integrated molding process. On one hand, this eliminates the risk of electrode edge contact short circuits during high pressure isostatic pressing; on the other hand, it eliminates the material transfer and secondary positioning errors associated with a separate frame preparation step, thereby achieving both cost reduction through process integration and enhanced precision assurance.

3. Visual Correction for Stacking

Equipped with a high precision positioning CCD and a dynamic correction platform, the system achieves high precision locking of repeated electrode positioning. Real time online inspection data of stacking alignment is fed back instantly, and the correction mechanism automatically and dynamically compensates for deviations. This ensures that the stacking position of each electrode is highly controllable, fundamentally reducing the short circuit risk caused by interlayer misalignment.

4. Whole-Machine Vibration Suppression Design

Dynamic vibration simulation is adopted to optimize the rigid frame structure of the equipment, which effectively suppresses mechanical vibration interference during high-speed stacking operation. This lays a solid hardware foundation for the stacking accuracy of ±0.1mm, and thoroughly resolves the industry bottleneck of mutual restriction between high-speed operation and ultra-high positioning precision.

Through the synergy of four layer technologies, tangible and implementable value is delivered to customers: superior stacking alignment enables more uniform current distribution inside cells and significantly mitigates safety risks of internal short circuits; enhanced process consistency boosts first pass yield and cuts rework and repair costs; the integrated solution combining plastic frame forming and stacking directly reduces capital expenditure on production line equipment and lowers factory footprint. At this critical transition phase where solid state batteries move from pilot line validation to low volume mass production, this core mid process equipment — featuring ultra high precision, multi route compatibility and high equipment availability — serves as a key enabler for customers to leap from laboratory prototype development to stable large scale manufacturing.

The industrialization of solid state batteries never relies on isolated breakthroughs in single materials, but rather a comprehensive upgrade of the entire manufacturing system. Lyric’s plastic frame forming and stacking all in one machine sets a benchmark in the highest value mid section processes with ultra high precision. Working in synergy with front end dry process electrode equipment, back end isostatic pressing and high pressure formation equipment, it delivers complete solid state battery full‑line manufacturing solutions for global customers.