美国抢铜，国内复合集流体借势提速？

Core Viewpoint - The surge in copper prices driven by potential U.S. tariffs on imported copper is catalyzing the development of composite current collector technology in China's new energy battery sector, leading to increased investment and innovation in this area [2][8]. Group 1: Copper Market Dynamics - The global copper market is experiencing significant turmoil, with Comex copper futures reaching historical highs due to rising expectations of high tariffs on imported copper in the U.S. [2] - Approximately 500,000 tons of copper are currently being shipped to the U.S., which is increasing supply in the U.S. market while tightening supply in non-U.S. regions, particularly Asia [2] - As of March 28, domestic copper futures in China are trading above 80,000 RMB per ton, with a year-to-date increase exceeding 10% [2] Group 2: Composite Current Collector Technology - The composite current collector technology is gaining attention as it uses less copper while enhancing safety performance, making it economically viable as copper prices rise [3] - When copper prices are at 75,000 RMB per ton, composite copper foil can achieve a cost advantage of over 1 RMB per square meter compared to traditional electrolytic copper foil [3] - Jiangsu Yinglian, a subsidiary of Yinglian Co., has entered a strategic cooperation agreement with a well-known automotive manufacturer to accelerate the application of composite current collectors in electric vehicles [3] Group 3: Investment and Capital Flow - Significant capital is flowing into the composite current collector sector, supporting the rapid development of companies with various technological approaches [4] - Yangzhou Nali New Materials Technology Co., Ltd. completed a 1 billion RMB A+ round financing to expand its production capacity for composite current collector products [5] - Anmate Technology (Beijing) Co., Ltd. raised several hundred million RMB in B1 round financing to support its vacuum deposition technology and plans to invest 5 billion RMB in a new production project [6] Group 4: Industry Expansion and Technological Advancements - The pace of industrial scale expansion is accelerating, with Beijing Shiliyuan Technology Development Co., Ltd. planning to invest approximately 10 billion RMB in composite current collector manufacturing projects [7] - Recent breakthroughs in battery technology, particularly the full-tab technology in cylindrical battery structures, are addressing challenges related to the internal resistance of composite current collectors [7][8] - BAK Battery has reported significant progress in combining dual composite current collectors with full-tab cells, enhancing performance and safety [8]