Unlock instant, AI-driven research and patent intelligence for your innovation.

Sintering method of N-type TOPCon battery

A sintering method and battery technology, applied in the fields of circuits, electrical components, sustainable manufacturing/processing, etc., can solve the problems of reducing the efficiency of N-type TOPCon cells

Active Publication Date: 2021-07-06
无锡奥特维旭睿科技有限公司
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention aims at the problem that the efficiency of the N-type TOPCon cell is reduced in the traditional sintering process, and provides a new sintering method of the N-type TOPCon cell, which improves the cell efficiency

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sintering method of N-type TOPCon battery
  • Sintering method of N-type TOPCon battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the listed embodiments can be implemented individually or in combination.

[0032] Photovoltaic cells are based on silicon, and the resulting photovoltaic modules can convert solar energy into electrical energy. Since during the production process of photovoltaic cells, photovoltaic cells have different states along with the progress of the process steps, and the calling habits in the industry are different, so in this application, "cell sheet" is used uniformly to refer to photovoltaic cells, which does not specifically refer to the A photovoltaic cell in a certain state, but a general term.

[0033] figure 2 Shown is the structural block diagram of the sintering furnace equipment that the method of the p...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a sintering method of an N-type TOPCon battery. A sintering furnace device is adopted to process a battery piece, the sintering method of the N-type TOPCon battery comprises the following steps: the printed battery piece enters a drying area, and low-temperature drying is carried out at a set temperature, so that organic matters in slurry on the surface of the battery piece are volatilized; the dried battery piece enters a pre-sintering area and is pre-sintered at a set temperature; the pre-sintered battery piece enters a main sintering area and is sintered at a set temperature to form ohmic contact; the sintered battery piece enters a cooling area to be cooled; and the cooled battery piece enters the multifunctional zone, and heat treatment and cooling are carried out under a set temperature curve. By arranging the multifunctional area, the battery piece is processed under the set temperature curve and illumination intensity, the passivation performance of the battery piece can be improved, and therefore the battery efficiency is improved.

Description

technical field [0001] The invention relates to the field of solar cell production, in particular to a sintering method for N-type TOPCon cells. Background technique [0002] N-type TOPCon battery (Tunnel Oxide Passivated Contact, tunneling oxide passivated contact battery) is a hot spot in industry research in recent years. The back structure of the N-type TOPCon battery is sequentially composed of electrodes, hydrogen-containing passivation film, doped polysilicon layer, and tunnel oxide layer from the outside to the inside. The PERC structure battery greatly improves the contact performance. However, also because of this unique back structure, the traditional sintering process in the production process of the TOPCon battery has a significant decrease in the battery minority carrier life and a decline in passivation performance, resulting in a decrease in battery efficiency. Contents of the invention [0003] The invention aims at the problem that the efficiency of the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01L31/18
CPCH01L31/1804H01L31/186H01L31/1868Y02P70/50
Inventor 李文徐英乾王猛郭健高阳李涛
Owner 无锡奥特维旭睿科技有限公司