起点锂电·2025-09-12 10:01Core Viewpoint - The article highlights the rapid advancements and competitive landscape in the energy storage battery sector, focusing on new product releases and technological innovations from various manufacturers [2][5][8]. Group 1: Event Information - The "2025 Starting Point Household Storage/Industrial Storage/Portable Energy Storage Battery Technology Forum" will take place on September 26, 2025, in Shenzhen, with over 600 participants expected [1]. - The event aims to discuss new storage technologies and release a white paper on user-side energy storage [1]. Group 2: Product Releases - A number of battery manufacturers are intensifying their efforts in energy storage cells, including: - XWANDA: Launching 684Ah and 588Ah energy storage cells, with the former featuring a volume energy density of 440+ Wh/L and a lifespan exceeding 20 years [2]. - Zhongchuang Innovation: Introducing 500Ah+ and 600Ah+ cells, with the 600Ah+ cell having a cycle life of 15,000 times and a volume energy density of 430 Wh/L [3]. - Desay Battery: Presenting an 86Ah high-rate cell designed for data centers, capable of 10C discharge [3]. - Tianneng Lithium Battery: Announcing four new national standard lithium battery products [4]. - Nandu Power Supply: Launching a 392Ah energy storage battery with a cycle life of 15,000 times and energy efficiency exceeding 95% [5]. Group 3: Competitive Landscape - The competition among large-capacity energy storage cells is intensifying, with manufacturers adopting multiple strategies, including 300Ah+, 500Ah+, and 600Ah+ routes [5][6]. - The 600Ah+ technology route is led by Sungrow Power Supply, with participation from several other companies, while Ningde Times dominates the 500Ah+ segment [6]. - The article notes a trend where battery manufacturers are entering the downstream system integration market, increasing pressure on system integrators [8]. Group 4: Technical Insights - The article discusses the advantages and challenges of different battery designs, including square and cylindrical cells, with square cells currently being more prevalent [7]. - The article also mentions the potential risks associated with the winding process in cylindrical cells as capacity increases, which could lead to higher internal resistance and structural issues [7].