Core Viewpoint - Nanjing San Chao New Materials Co., Ltd. plans to invest approximately 240 million yuan to establish a battery technology research and development base focused on perovskite/silicon tandem technology, with a construction period of 2 years and funding sourced from self-owned or raised funds [1][2]. Group 1: Project Phases - The project will be executed in two phases: - Phase 1 (Months 1-12): Focus on basic research, including material system screening, process development for large-area tandem batteries, and packaging processes. The goal is to achieve a tandem battery efficiency exceeding 34% and a standard module efficiency of 28% [2]. - Phase 2 (Months 13-24): Concentrate on mass production research, including high-throughput process validation and optimization of intermediate connection layers. The target is to reach a module efficiency of 30% and validate key mass production processes while forming a core patent group [2]. Group 2: Technology Advantages - Perovskite/silicon tandem batteries are seen as the mainstream direction for future industrialization due to their adjustable bandgap, excellent optoelectronic performance, and low production costs. The perovskite layer can be fabricated at temperatures below 150°C, allowing it to be added to existing silicon cells without damaging the underlying structure, thus reducing losses [3]. Group 3: Company Background - Nanjing San Chao New Materials Co., Ltd. was established in 1999 and specializes in the R&D, production, and sales of diamond and cubic boron nitride tools. The company began developing photovoltaic industry products in 2009 and has become a major player in the diamond wire industry, breaking foreign monopolies and participating in setting domestic industry standards [3].