负极材料成本再承压：石油焦、椰壳炭价格上涨

Core Viewpoint - The stability of costs for anode materials in power batteries is under dual pressure from raw material prices, particularly for low-sulfur petroleum coke and coconut shell carbon, which have seen significant price increases due to supply shortages and rising demand [2][3][4]. Group 1: Raw Material Price Trends - The price of low-sulfur petroleum coke, a key raw material for artificial graphite, has increased significantly since July, with a monthly average price rise exceeding 240 RMB per ton [2]. - Major oil refineries in Northeast China have announced further price increases for petroleum coke starting August 1, with increases ranging from 50 to 150 RMB per ton [2]. - Coconut shell carbon, essential for sodium-ion battery hard carbon anodes and new silicon-carbon anodes, has also seen a sharp price rise due to supply issues, with imported prices exceeding 8000 RMB per ton as of July 2025 [3][4]. Group 2: Impact on Downstream Production - The rising raw material prices have directly impacted downstream production costs, leading to increased cash flow pressure for some small and medium-sized graphite electrode manufacturers [3]. - Leading graphite electrode companies have raised prices for ultra-high power products by 3% to 5% in response to increased costs [3]. - The price surge occurs at a critical time for silicon-carbon anodes, which are expected to enter mass production, potentially affecting their cost control and industrialization process [4]. Group 3: Market Structure and Trends - Despite the challenges, artificial graphite maintains a dominant position in the market, with a total shipment of 1.29 million tons of anode materials in the first half of 2025, a 37% year-on-year increase [5]. - Artificial graphite shipments reached 1.17 million tons, a 47% increase, capturing 91% of the market share, while natural graphite shipments declined by 23% [5]. - The market is still exploring new anode materials, as evidenced by the increasing market share of alternative materials, despite the volatility in raw material prices [5].