固态电池量产攻坚：利元亨电极辊压和电解质热复合一体机的工艺进阶

（来源：利元亨智能装备）

全固态电池的产业化进阶，始终绕不开制造端的精度与效率博弈。当材料体系的迭代逐步逼近性能天花板，工艺装备的集成度与控制能力，便成为决定产品良率、成本与规模化落地节奏的核心变量。在极片制备与固态电解质复合这一前道核心工序，传统分离式生产线的工艺割裂与精度短板，正成为全行业共同面对的量产卡点。

01

固固界面瓶颈：分离式工艺的天然局限

固态电池的核心性能锚点，在于电极与电解质之间的固固接触界面。不同于液态体系依靠电解液浸润实现充分界面接触，固态电解质与极片的复合质量，直接决定电芯内阻、倍率表现与循环寿命。当前主流的电解质转印工艺，需将预制电解质膜从载体基材剥离后与极片热压结合，全程对温度场均匀性、压力控制精度与膜层完整性要求极为严苛。

行业普遍面临三重现实困境：其一，电解质膜剥离完整性不足，基材残留与膜层破损会直接劣化界面一致性，抬高接触阻抗；其二，极片辊压与电解质复合分属两道独立工序，物料周转不仅推高厂房占地与物料损耗，两段工艺参数也难以联动优化，无法同时兼顾极片压实密度与电解质膜层完整性；其三，对于电极与电解质溶剂体系不兼容的技术路线，湿法共涂方案完全失效，干法转印成为可行路径之一，进一步抬高了对装备精度与稳定性的要求。

02

精度与集成并行：利元亨一体机的工艺破局

针对行业共性痛点，利元亨推出的电极辊压和电解质热复合一体机，将两道核心工序集成于单台装备，为固态电池前道制造提供了一体化落地解决方案。

这款设备采用电解质压制转印技术路线，通过红外预热工艺处理，可让固态电解质顺利从基材剥离并完整转印至极片表面，从源头解决传统转印工艺剥离率低、膜层易损的行业难题。设备采用独立工艺窗口设计，极片辊压与电解质热复合两道工序可分别调控参数，既保障极片致密化效果，又避免高压对电解质膜层造成结构性破坏，实现两个功能层质量的极致控制，同时赋予产线更高的生产灵活性与材料适配性。

在核心控制精度上，设备复合膜厚精度可达≤±2μm，辊缝调节精度达 1μm，配合闭环控制体系，可实现膜层均匀性的精准管控，为构建低阻抗、高一致性的固固界面提供硬件支撑。一体化集成设计大幅缩减设备占地面积，同时各功能模块可独立启闭，既适配研发阶段的多方案工艺验证，也可满足高性能产品的量产需求，尤其适用于对电解质质量要求极高、电极与电解质溶剂不兼容的技术场景。

从实验室样品到规模化量产，固态电池的产业跨越离不开装备端的底层突破。利元亨这款一体化设备以精度控制、工艺集成与材料适配性的多重优势，为固态电池制造工艺迭代提供了可靠的装备支撑，也为全行业打通量产路径注入了坚实的确定性。

Breakthrough in Solid-State Battery Mass Production: Process Advancements in Lyric's Electrode Calendering and Integrated Electrolyte Thermal Lamination Equipment

The industrialization advancement of all-solid-state batteries invariably hinges on the trade-off between precision and efficiency at the manufacturing end. As iterations of material systems edge closer to their performance ceilings, the integration level and control capability of process equipment emerge as core variables governing product yield, cost, and the pace of large-scale commercialization. For the critical upstream processes of electrode preparation and solid electrolyte lamination, the fragmented workflows and insufficient precision inherent to conventional discrete production lines have become universal mass-production bottlenecks plaguing the entire industry.

Bottlenecks at Solid-Solid Interfaces: Inherent Limitations of Segmented Manufacturing Processes

The core performance anchor of solid-state batteries lies in the solid-solid contact interface formed between electrodes and solid electrolytes. Unlike liquid lithium-ion cells that rely on electrolyte infiltration to achieve sufficient interfacial contact, the lamination quality between solid electrolytes and electrode sheets directly dictates cell internal resistance, rate capability and cycle life. The prevailing electrolyte transfer printing process today requires prefabricated electrolyte films to be peeled off carrier substrates before thermal lamination with electrodes. The entire workflow imposes extremely stringent requirements on uniform temperature distribution, precision pressure regulation and intact film integrity.

The industry is universally confronted with three practical bottlenecks:

First, insufficient intactness during electrolyte membrane delamination. Substrate residue and membrane cracking directly undermine interfacial uniformity and raise contact impedance.

Second, electrode calendering and electrolyte lamination are implemented as two separate processes. Material circulation not only increases plant floor space and material waste but also creates barriers to coordinated optimization of process parameters across both stages. This makes it impossible to simultaneously achieve the target electrode compaction density and intact electrolyte membrane layers.

Third, wet co-coating is entirely unworkable for technical routes featuring incompatible electrode-electrolyte solvent systems, leaving dry transfer as one viable alternative. This further raises stringent requirements for equipment precision and operational stability.

Parallel Advancement of Precision & Integration: Technological Breakthrough of Lyric Integrated Machine

To address universal industry pain points, Lyric has developed an all-in-one machine integrating electrode calendering and electrolyte thermal lamination. By consolidating these two core processes into a single piece of equipment, it delivers a one-stop industrialized solution for front-end manufacturing of solid-state batteries.

This equipment adopts the electrolyte pressing transfer technical route and applies infrared preheating treatment, enabling solid-state electrolytes to be smoothly peeled off the substrate and completely transferred onto electrode surfaces. It fundamentally resolves longstanding industry challenges of low peeling yield and fragile membranes inherent to conventional transfer processes. Designed with independent process windows, the machine allows separate parameter tuning for electrode calendering and electrolyte thermal lamination. It delivers superior electrode densification while preventing structural damage to electrolyte membranes caused by high pressure, enabling ultra-precise quality control of both functional layers. Meanwhile, the system endows production lines with enhanced operational flexibility and broader material compatibility.

In terms of core control accuracy, the machine achieves composite film thickness precision of ≤±2 μm and a roll gap adjustment accuracy of 1 μm. Equipped with a closed-loop control system, it enables precise regulation of membrane uniformity and provides robust hardware support for forming low-impedance, highly consistent solid-solid interfaces. The integrated all-in-one design drastically reduces equipment footprint. In addition, each functional module can be independently activated or shut down. The machine caters to multi-scheme process verification during R&D stages as well as mass production of high-performance products. It is particularly suited for technical scenarios that demand ultra-high electrolyte quality or involve incompatible solvent systems between electrodes and electrolytes.

The industrial leap of solid-state batteries from lab-scale samples to large-volume mass production hinges on fundamental breakthroughs in manufacturing equipment. Lyric’s integrated all-in-one machine boasts multiple strengths including ultra-precise control, process integration and wide material compatibility. It delivers reliable equipment backing for iterative upgrades of solid-state battery manufacturing processes, and brings solid certainty to the entire industry in unlocking viable mass-production routes.