璞泰来

 

Name：88μm Aluminum-Lamination-Film

First to achieve technological breakthroughs in high-end thermal aluminum laminated packaging film products in China

Import substitution

The product performance reaches the Japanese mainstream advanced level

Product introduction

1.Product overview:

Aluminum laminated film (soft pack) is a new process and new technology for lithium-ion battery production. This packaging film is composed of multiple layers of plastic, aluminum foil and adhesives, so that it has good shape ability and heat seal ability, and also has good isolation, which is very suitable for lithium-ion battery packing material.

2.Main application:

Digital lithium-ion batteries.

3.Innovative advantages:

—Take the lead in realizing technological breakthroughs and import substitution of high-end thermal aluminum laminated packaging film products in China, and successfully develop steel-plastic film products for electric vehicle batteries. The performance is close to the international advanced level.

—Adopting self-developed thermal compounding process and secondary compounding process, successfully solved the problem of adhesion between the CPP layer of aluminum laminated film and aluminum metal foil layer, and successfully broke through the technical bottleneck which is restricting most domestic aluminum laminated film manufacturers.

—Independently developed a special CPP material that is resistant to electrolyte corrosion in lithium-ion batteries and solves the problem that ordinary CPP materials are not resistant to corrosion and high temperature.

Technical parameters

NO.	Item项目	Unit单位	Specifications规格	检验方法和仪器Instrument & method	缺陷等级缺陷等级Defect type
1	RoHS		符合RoHS要求/Must meet ROHSrequirement	核对分析报告是否有效to check relative report is availability or not	严重 Critical
2	冲坑性能（Punching）	mm	•冲坑后分层、裂缝、起皱和成型区域变色不可接受， After punching, the delamination, crack, crinkle or discolor on forming area are not allowed, •冲坑后封装之后发现 Nylon 和 Al 之间分层不可接受 After pocket sealing, the delamination between Nylon and Al layer are not allowed.	顶部圆角/Corner Angel: 1.0mm 根部圆角/Vertical Angel: 0.6mm 斜度/Taper: 6° 尺寸/Size: 5069 冲模速度/Form speed: 200mm/Min 冲坑深度/Form Depth: ≥4.5mm 封装条件/Sealing condition: 180℃6s*0.3MPa,distance to edge:≤ 1.5mm	严重 Critical
3	封装性能 Sealing performance	N/15mm	•封装强度＞40N/15mm Sealing Pull strength less 40N/15mm is not allowed •测度方法见附图定义 the testing method refer to the attached definition.	封装条件/Sealing condition: 温度/Temperature: 180°C 热封时间/Time: 6 S 封装压力/Pressure: 0.3MPa.	主要的 Major
4	Al/CPP 层剥离强度 Peel strength between Al & CPP layer	N/15mm	•粘接强度≥7N/15mm Peeling strengthen less 7N/15mm is not allowed	•剥离速度/Peeling speed:175mm/min •剥离角度/Peeling angle:180°	Minor 次要的
5	抗电解液性能 Anti-electrolyte performance	N/15mm	•边缘无分层/No delaminating allowed from edge. •湿态剥离强度/Peeling strength: ≥6.0N/15mm(for reference 参考项)	•电解液成份 Electrolyte (EC:DEC=1:1, 1M LiPF6) •将样品切成 15mm 宽小片放入 E2 系列电解液中,在 85°C 下密闭烘烤 4 小时后取出清水洗净,在清水中浸泡 2小时后测量 CPP 与 Al 之间的拉力. To dip the sample(15mm width) in electrolyte at 85°C for 4 hours and observe it is delaminating or not, then clean the samples with water for 2 hours and test the adhesive ability with electrolyte existed	Major 主要的

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