Xin Lang Cai Jing·2026-02-27 04:19Core Viewpoint - The perovskite battery sector in China is experiencing significant breakthroughs, with advancements in efficiency and stability, leading to increased interest and investment in the industry [1][4][11]. Group 1: Breakthroughs in Perovskite Technology - Wuhan University has developed a new technique called "atomic-scale interface bonding," which introduces a tunable hafnium oxide (HfOx) interlayer to stabilize the charge transport interface in perovskite solar cells, addressing long-standing efficiency and stability challenges [2][10]. - The p-i-n type perovskite solar cells produced by the research group achieved a power conversion efficiency of 27.1% (third-party certified efficiency of 26.6%) and maintained over 90% of initial efficiency after 5000 hours of operation at 85°C under continuous sunlight, with a high-temperature operational lifespan (T90) 25 times that of control devices [3][10]. - The research from the Chinese Academy of Sciences has led to the development of new tin oxide nanomaterials and the construction of two-dimensional/three-dimensional perovskite heterojunctions, which may facilitate the commercialization of efficient and stable perovskite photovoltaic modules [11]. Group 2: Market Response and Investment - The A-share photovoltaic equipment sector saw significant gains, with companies like Junda Co., Shuangliang Energy, and Yongzhen Co. reaching their daily price limits, indicating strong market interest in perovskite technology [1][8]. - A total of 32 A-share companies are actively investing in perovskite battery technology, with Junda Co. reporting a conversion efficiency of over 33.53% for its small-area perovskite-TOPCon tandem cells [5][12]. - Financial data shows that 12 stocks in the perovskite battery sector have received net inflows of financing this month, with Jiejia Weichuang and Jinko Solar attracting over 1 billion yuan each in net purchases [6][13].