光伏行业发布首个《背接触（BC）电池技术发展白皮书》

Core Viewpoint - The joint release of the "BC Technology Industry White Paper" by several organizations highlights the advancements in BC technology batteries, which have achieved a mass production efficiency of over 27%, surpassing TOPCon technology by 1.6% [1] Group 1: Technology Advancements - BC technology batteries have reached a mass production efficiency of 27% [1] - This efficiency is 1.6% higher than that of TOPCon (Tunnel Oxide Passivated Contact) batteries [1] - The theoretical efficiency limit of BC technology is 29.1%, approaching the theoretical efficiency ceiling of crystalline silicon [1] Group 2: Market Positioning - The maturity and cost competitiveness of BC technology are now comparable to traditional routes [1]