Investment Rating - The report maintains a strong recommendation for the battery sector, highlighting significant growth potential and profitability improvements in leading companies such as CATL and others [2][3]. Core Insights - The overall industry is experiencing high prosperity, with domestic electric vehicle sales reaching 4.26 million units in Q3 2025, a year-on-year increase of 34.9% [2][6]. - The energy storage sector saw a remarkable shipment of 163 GWh in Q3 2025, reflecting an 83% year-on-year growth [2][10]. - The report anticipates a continued growth rate of 25-30% for the industry in 2026, driven by strong demand in energy storage and electric vehicles [2][3]. Summary by Sections Part 1: Terminal Demand - Domestic electric vehicle demand remains robust, with significant growth in energy storage shipments in Q3 2025 [4][10]. Part 2: Electric Vehicle Sector - The overall profit in the electric vehicle sector continues to improve, with Q3 2025 revenues reaching 9,981 billion yuan, a 13% increase year-on-year [2][11]. Part 3: Segment Analysis - Profit distribution shows that battery profits have increased to 46% of total profits, while the automotive sector's share has decreased to 26% [2][23]. - The report highlights significant profit growth in lithium carbonate and iron-lithium positive electrodes, with net profit growth rates of 309% and 272% respectively in Q3 2025 [2][28]. Part 4: Investment Recommendations - The report strongly recommends investing in the battery sector, citing the robust performance of leading companies and the anticipated price increases in various materials [2][3].