电镀铜技术
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白银扼喉:光伏业被迫打响“降银”突围战
3 6 Ke· 2025-12-03 10:46
Core Insights - The silver price surge is significantly impacting the photovoltaic (PV) industry in China, leading to major companies like Heraeus exiting the market due to reduced profit margins [1][6]. Group 1: Silver Price Impact - As of December 1, the spot silver price reached a historic high of $57.7 per ounce, with a year-to-date increase of over 90%, outpacing gold [2]. - Silver paste constitutes approximately 12% of the total cost of PV modules and over 50% of the non-silicon costs in battery cells [2]. - The supply-demand gap for silver is projected to remain significant, with an estimated shortfall of about 3,660 tons by 2025 [2]. Group 2: Technological Innovations - The rising silver prices have prompted a "silver reduction revolution" in the PV manufacturing sector, with companies optimizing processes to reduce silver consumption by nearly 80% over the past three years [3]. - The silver consumption for TOPCon cells is expected to decrease from 90-95 mg/W in 2024 to 80-85 mg/W by the third quarter of 2025 [3]. - Companies like Tongwei have successfully reduced silver usage in HJT cells by nearly 80% through innovative techniques [3]. Group 3: Market Dynamics and Challenges - The PV manufacturing industry faces a critical decision between adopting cheaper but less efficient silver-coated copper paste or waiting for the more advanced but not yet mature electroplating copper technology [6]. - The silver paste sector is under pressure due to volatile silver prices and extended payment terms from downstream customers, leading to significant profit margin squeezes [6]. - Domestic silver paste companies are also struggling, with companies like Dike experiencing a 70.03% year-on-year decline in net profit for the first half of 2025 [6]. Group 4: New Market Opportunities - The technological shift in silver usage is creating new market opportunities, with the market for new types of pastes expected to exceed 15 billion yuan by 2030 [6]. - Companies in the upstream supply chain, such as Guangxi Jianxing, are breaking foreign monopolies by producing ultra-fine silver powder at a significantly lower cost compared to imported alternatives [7]. Group 5: Industry Outlook - The international precious metals market is facing historic structural pressures, with the PV industry closely monitoring silver price fluctuations [8]. - The timeline for technological iterations in the PV sector is being compressed from several years to just one or two years, making silver reduction a critical survival challenge for all PV companies [8].