The invention relates to a packaging seal structure, a preparation method thereof and a flexible packaging battery. The packaging sealing structure (1) includes two layers of packaging film (11) heat sealed together, each layer of packaging film (11) includes an insulating protective layer (111), an insulating heat sealing layer (112) and a core metal layer (113). In the packaging surrounding area (12) of the packaging seal structure (1), the insulating heat sealing layer (112) of the two layers of packaging film (11) faces each other and melts into one body to form an insulating fusion layer (13) which seals the two layers of packaging film (11) together. The insulating fusion layer (13) consists of an overflow part (131), an overflow from the insulating fusion layer (13) to the edge of the surrounding area (12) of the packaging seal structure (1) to the outer end (1131) of the core metal layer (113) of the two-layer packaging film (11) and a complete coating of the outer end (1131) of the core metal layer (113) of the two-layer packaging film (11) so that the outer end (1131) of the core metal layer (113) of the two-layer packaging film (11) can be completely covered so as to make the outer end (1131) of the core metal layer (113) of the two-layer (11). Insulation with the outside. This simple and effective insulation method improves the insulation effect and prevents short circuit with the outside world.
【技术实现步骤摘要】
【国外来华专利技术】PCT国内申请，说明书已公开。
【技术保护点】
PCT国内申请，权利要求书已公开。
【技术特征摘要】
【国外来华专利技术】PCT国内申请，...
【专利技术属性】
技术研发人员：郭培培，何平，赵义，彭业军，程文强，
申请(专利权)人：宁德新能源科技有限公司，
类型：发明
国别省市：福建,35
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