solution

Project introduction

Laser application is an important way to improve the conversion efficiency of photovoltaic products, and help photovoltaic enterprises to reduce costs and increase efficiency under the background of "double carbon target". Baochenxin provides professional laser solutions for the photovoltaic industry, integrating self-developed lasers, external optical devices and laser control systems. Solutions cover photovoltaic cells, photovoltaic modules and other links, can provide TOPCon boron-expanded SE doped laser solutions, photovoltaic module lossless slicing laser solutions, photovoltaic module welding laser solutions.

Scheme advantage performance

Low damage uniform spot

Strong stability

Industry customization

Compact structure for easy integration

Intelligent production map

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Plan details

TOPCon boron-expanded SE doping

Scheme value

Industry R&D customization

Customized for PV industry innovation research and development

Nondestructive machining

The spot distribution is uniform and the damage is low, and the damage to the photovoltaic cell is small

High stable operation

The laser beam has high quality and strong stability

High application efficiency

High quality laser application, effectively improve the photoelectric conversion efficiency of photovoltaic cells

Application scenario

TOPCon boron-expanded SE doping

Laser lossless scribing

Scheme value

Clean cutting

The amount of silicon dust produced by processing is small and the bending strength is consistent

Lossless cutting

Non-destructive cutting solves the problem of battery damage easily caused by traditional laser cracking

High quality cutting

High quality cutting, clean cutting surface of photovoltaic module, no damage points

Reduce losses

It can minimize the loss of battery performance before and after slicing, and increase the output power of components

Application scenario

Laser lossless scribing (slotting, slicing)

Photovoltaic welding with laser welding

Scheme value

Industry R&D customization

Customized for PV industry innovation research and development

High quality welding

Good welding consistency, uniform tension, low probability of welding

Low-loss welding

Laser local spot welding, no battery bending phenomenon, reduce the fragmentation rate

Low loss

Maintain component efficiency, low welding temperature, no light attenuation, and small component efficiency loss

Application scenario

Photovoltaic belt welding

TOPCon boron-expanded SE doping

Laser lossless scribing

Photovoltaic welding with laser welding

Cooperation Case

01

Laser lossless scribing project

In a project, the use of laser lossless scribing scheme, instead of the traditional lossy cutting (laser slotting + mechanical splicing) process, no micro-cracks, low thermal damage, compatible with PERC/TOPCon /HJT and other mainstream battery. In the traditional way, the slice of the conventional half/imbricated battery adopts laser thermal cutting, that is, the melting groove is formed on the battery through the focused laser spot, and then the breaking force is applied externally. This method is easy to bring micro-cracks in the cutting section and a large heat affected zone on the battery surface, which may bring greater efficiency loss for the laminized HJT battery. Lossless cutting (laser slotting + laser splicing) technology can use separate laser irradiation or paraxial irradiation light path to induce cracks in the battery and extend the crack, which can reduce the hidden crack, is expected to reduce the efficiency loss of the component side by 0.05%, and also help improve the production yield.