In this issue, I will take you through this issue. This is a tutorial that many friends are looking for. TOPCon batteries have caused heated discussions recently, causing many listed companies to compete for deployment. So what does topcon battery mean? Let’s take a look together~
The so-called Topcon battery, referred to as tunnel oxide passivation battery, also called i-TOPCon battery, is a type of solar battery. Compared with other types of batteries, Topcon battery technology can increase the open circuit voltage and fill factor of the battery, significantly improving Photovoltaic conversion rate.
The Topcon battery currently referred to in the market is a brand-new battery technology jointly developed by Trina Solar Technology and China Key Laboratory. It has obtained testing certification from the China Institute of Metrology. The n-type monocrystalline silicon i-TOPCon battery efficiency reaches 25.5 %.
For solar cells, the most important thing is the efficiency of the cell.
It is reported that passivated contact batteries represented by Topcon batteries have a higher efficiency limit (28.2%~28.7%), which is higher than the 27.5% limit efficiency of HIT, and is also much higher than the PERC battery (24.5%), which is the closest The theoretical limit efficiency of crystalline silicon solar cells (29.43%).
To put it simply, TOPCon batteries have a higher ceiling than mainstream PERC batteries and HIT batteries. This is the core logic of Topcon batteries.
In addition, Topcon is compatible with the existing PERC production line, and the transformation cost of a single GW is about 50 million yuan. Under the pressure of asset depreciation of large-scale PERC production line equipment, upgrades and transformations are required to extend the equipment service life, superimposing SMBB technology and silver paste With the advancement of localization, the advantages in improving efficiency and reducing costs will become more obvious, making it a cost-effective route choice in the next 2-3 years.
Generally speaking, as a new technology route, Topcon batteries take into account both cost and efficiency, and are therefore considered by the market to be the mainstream direction in the future. In the context of rapid technology iteration, battery and component companies with leading positions can not only enjoy the excessive premium dividends brought by new products, but also take the initiative in the competition for market share, thereby benefiting and even becoming the leader of the new generation. This may be the main reason why funds are optimistic.
This article takes ASUS Tianxuan 3 as an example and is applicable to Windows 11 system.
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