T/UNP 572-2025 Active Group standards

Technical requirements for the laser precision micro- and nano-processing of back-contact batteries according to T/UNP 572-2025

T/UNP 572-2025 Back contact battery laser precision nano-microfabrication technology requirements

Publish Date: 2025-04-16 Implement Date: 2025-04-16 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/UNP 572-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: \nWelding process

Publish Date: 2025-04-16

Implement Date: 2025-04-16

Scope

Main technical content: This standard specifies the basic requirements, process requirements, and safety requirements for the laser precision micro-nano processing of back-contact batteries. On the equipment side, it sets forth the parameters, performance, and maintenance requirements for components such as lasers and beam transmission and focusing systems. On the material side, it specifies the purity, thickness, and surface condition of battery substrates and semi-finished products to be processed. On the process side, it standardizes the processing flow, preparation work, process control, and quality inspection standards, such as the dimensional accuracy of laser processing areas and graphic accuracy requirements. On the safety side, it ensures safety from multiple aspects, including equipment protection, personnel operation norms, environmental temperature and humidity control, and ventilation and noise reduction, to comprehensively guarantee the quality, efficiency, and safety of laser processing of back-contact batteries.