曼恩斯特湿法电解质薄涂系统：以自研技术助推固态电池量产

来源：市场资讯

（来源：曼恩斯特）

固态电池的革命性优势，源于高能量密度与本质安全性，而这一切的前提，是一层厚度仅几微米到数十微米的固态电解质膜。

想要把这层核心膜层的性能优势落地到规模化量产，成熟稳定的涂覆工艺是关键。曼恩斯特湿法电解质薄涂技术，通过将固态电解质粉体与粘结剂制成浆料，经涂布设备精准转移到基材上干燥成膜，是目前行业主流的量产工艺路线。它能实现极致的面密度控制，完美适配固态电池对电解质层超薄化、高均匀性的核心需求。

而要将这一工艺路线的理论优势，真正转化为可规模化复制、性能稳定可控的量产能力，核心在于一套高精度、全流程可控的涂布装备系统。

湿法电解质薄涂系统

曼恩斯特湿法电解质薄涂系统，依托自研湿法狭缝涂布与全流程闭环控制技术，可实现 1-60μm 干膜厚度的微米级精准管控，以非接触式涂布工艺规避基材损伤，对极片基底粗糙度适配性好，大幅减少超薄涂层漏涂、针孔等致命缺陷。在整体的制造环节中，通过双面分步涂布保障电解质层成型稳定，着力解决行业薄涂不均、界面阻抗高、良品率不足等共性技术痛点。

同时，曼恩斯特湿法电解质薄涂系统，涂布速度最高可达 60m/min，远超行业常规 5-30m/min 的量产标准，配合成熟的 “正面涂布→干燥→背面涂布→干燥” 双面涂布工艺流程，能完美匹配 GWh 级产线的产能需求；同时通过狭缝涂布的工艺优势，实现了更高的材料利用率，大幅减少浆料浪费。

更值得一提的是，这套系统具备极强的材料兼容性，可适配硫化物、氧化物、聚合物等主流固态电解质体系的浆料涂布，完美匹配行业技术路线的演进方向，帮助电池企业规避技术迭代带来的产线改造风险。

湿法电解质薄涂系统（左视图）

另外，全密闭式的供料涂布系统，实现从浆料存储、精密输送到狭缝挤出的全链路水氧隔绝与洁净管控，可有效规避杂质污染，降低敏感浆料水解变性的风险，大幅提升浆料稳定性与涂布良品率。

曼恩斯特湿法电解质薄涂系统，针对固态电池量产的核心工艺痛点，为固态电解质层工业化制备提供了成熟的主流量产方案，对推动固态电池产业化落地具备关键积极作用。

The revolutionary advantages of solid-state batteries stem from their high energy density and intrinsic safety. The prerequisite for achieving this is a solid-state electrolyte membrane with a thickness ranging from merely a few to dozens of micrometers.

To translate the performance benefits of this core membrane layer into scalable mass production, a mature and stable coating process is key.

MANST Wet-Process Thin-Coating Technology for Solid-State Electrolytes—which involves formulating solid-state electrolyte powder and binders into a slurry, then precisely transferring it onto a substrate via coating equipment to dry and form a film—is currently the industry's mainstream production route. It achieves extreme areal density control, perfectly meeting the core requirements for ultra-thin, highly uniform electrolyte layers in solid-state batteries.

However, to truly transform the theoretical advantages of this process route into replicable, stable, and controllable mass production capabilities, the core lies in a set of high-precision, fully process-controllable coating equipment systems.

Relying on proprietary wet slot-die coating and full-process closed-loop control technologies, MANST Wet-Process Thin-Coating System for Solid-State Electrolytes achieves micrometer-level precision control of dry film thickness from 1 to 60μm. Its non-contact coating process avoids substrate damage and offers excellent adaptability to electrode substrate roughness, significantly reducing fatal defects such as missed coatings and pinholes in ultra-thin layers. Within the overall manufacturing process, a double-sided step-by-step coating method ensures stable formation of the electrolyte layer, addressing common industry pain points such as uneven thin coating, high interfacial impedance, and low yield rates.

Furthermore, the MANST system boasts a maximum coating speed of 60m/min, far exceeding the industry standard of 5-30m/min. Coupled with a mature "front coating → drying → back coating → drying" process, it perfectly matches the capacity requirements of GWh-level production lines. Additionally, the slot-die coating process ensures higher material utilization, significantly reducing slurry waste.

Notably, the system features strong material compatibility, capable of handling slurries for mainstream solid-state electrolyte systems including sulfides, oxides, and polymers. This aligns perfectly with the evolution of industry technology routes, helping battery manufacturers avoid the risks of production line retrofitting due to technological iterations.

In addition, the fully enclosed feeding and coating system achieves full-link water and oxygen isolation and cleanliness control—from slurry storage and precision delivery to slot-die extrusion. This effectively prevents impurity contamination, reduces the risk of hydrolysis and denaturation in sensitive slurries, and significantly improves slurry stability and coating yield.

Targeting the core process pain points of solid-state battery mass production, MANST Wet-Process Thin-Coating System for Solid-State Electrolytes provides a mature, mainstream solution for the industrial preparation of solid-state electrolyte layers, playing a key and positive role in driving the commercialization of solid-state batteries.

文案 | 阿聪

编辑 | 阿聪

审核 | 魏小姐