如果您希望可以时常见面，欢迎标星收藏哦~ 来源：内容编译自ieee 。 在全光AI数据中心的竞争中，一家巨头如今押注了另一匹马。半导体制造巨头台积电宣布，将与 桑尼维尔初创公司Avicena合作，生产基于MicroLED的互连产品。该技术是一种务实的尝试，旨 在用光学连接取代电连接，以低成本、节能的方式满足日益增多的GPU之间通信的迫切需求。 由于大型语言模型及其同类模型的计算需求，人工智能集群在数据量、带宽、延迟和速度方面面临 着前所未有的要求。迟早，单个人工智能数据中心机架内连接处理器和内存的铜线必须被光纤取 代。"目前，人们迫切希望将光纤连接尽可能地靠近电路板，"台积电副总裁蔡崇信表示。 Avicena 提供了一种独特的方法，使用数百个通过成像型光纤连接的蓝色MicroLED来传输数据。 该公司的模块化LightBundle 平台避免了激光器及其相关的复杂性问题，这些问题会威胁其他光学 芯片的可靠性、成本和功耗。Tsai 说："这非常另类！"但它非常适合这些短距离应用，而这正是 它引人注目之处。 一条简单的光纤链路，每通道仅需 300 个像素，以 10Gb/s 的速率传输，即可延伸超过 10 米的距 离 ...

Core Points - The article discusses the recent developments in US-EU trade negotiations, highlighting the postponement of a 50% tariff on EU goods by President Trump, which has led to renewed talks between the two parties [1][2] - The EU is committed to accelerating trade negotiations to avoid a transatlantic trade war, with both sides expressing a desire to maintain close communication [1][2] - Despite the extension of the negotiation deadline, significant differences remain between the US and EU, complicating the path to a mutually agreeable solution [3] Trade Negotiations - The EU has agreed to expedite trade talks following Trump's decision to delay the imposition of tariffs from June 1 to July 9 [2] - EU Trade Commissioner Maros Sefcovic emphasized the importance of constructive dialogue and maintaining close contact with US officials [1][2] - The EU's proposal to the US, which included joint tariff reductions and increased market access for US agricultural products, was rejected [3] Market Reaction - The threat of a 50% tariff was projected to impact $321 billion worth of US-EU trade, potentially reducing US GDP by nearly 0.6% and increasing prices by over 0.3% [4] - Following the news of the extended negotiation period, investor sentiment improved, leading to a rise in US stock futures and European markets [4][5] EU's Preparedness - The EU has prepared a countermeasure list targeting $239 billion worth of US goods in response to US tariffs, with a focus on politically sensitive products [12] - Additional tariffs on $950 billion worth of US products are also being considered, including items like Boeing aircraft and American-made cars [12] - German Economic Minister Katherina Reiche called for calm and emphasized the need to find common ground within the next six weeks [12]

Core Viewpoint - The company reported a significant increase in revenue and profit for 2024 and Q1 2025, driven by strong growth in lithium battery and LED businesses, with expectations for continued high growth in the coming years [1][2]. Financial Performance - For 2024, the company achieved revenue, net profit attributable to shareholders, and net profit excluding non-recurring items of 6.756 billion, 488 million, and 429 million yuan, respectively, representing year-on-year growth of +29.4%, +246.4%, and +285% [2]. - In Q1 2025, the company reported revenue, net profit attributable to shareholders, and net profit excluding non-recurring items of 1.728 billion, 142 million, and 148 million yuan, respectively, with year-on-year growth of +20.9%, +100.6%, and +204%, but a quarter-on-quarter decline of -9.9%, -31.2%, and -24.9% [2]. Lithium Battery Business - The lithium battery segment generated revenue of 2.587 billion yuan in 2024, a year-on-year increase of 58%, with a gross margin of 21.94%, up 13.5 percentage points [3]. - The company sold 442 million lithium batteries in 2024, marking a year-on-year growth of 100.7%, with expectations to reach 700 million units or more in 2025 due to recovery in the electric tool market and growth in capacity-type shipments [1][4]. Pricing and Cost Structure - The average selling price of lithium batteries decreased from approximately 7.43 yuan per unit in 2023 to around 5.85 yuan in 2024, while the profit per unit increased from 0.42 yuan to approximately 0.51 yuan [3]. - In Q1 2025, the average selling price was estimated at around 5.2 yuan per unit, slightly down by 0.2 yuan, attributed to shipment structure changes [4]. Production Capacity and International Expansion - The company's Malaysian factory commenced production in April 2024, expected to contribute over 200 million units this year, helping to mitigate tariff issues due to lower tariffs in Malaysia [5]. - The company anticipates continued growth in lithium battery shipments, with significant contributions from various sectors including electric tools and emerging applications like robotics and AI data centers [4]. Other Business Segments - The LED business is transitioning to high-value products such as miniLED and microLED, while the metal logistics business is maintaining stable growth, with expected contributions of over 150 million and 170 million yuan, respectively [6]. Profit Forecast - The company projects net profit attributable to shareholders for 2025, 2026, and 2027 to be 692 million, 859 million, and 1.09 billion yuan, with corresponding valuation multiples of 21, 17, and 13 times [7].

Group 1 - Oracle plans to invest approximately $40 billion to purchase high-performance chips from Nvidia to support a new data center for OpenAI in Abilene, Texas [1] - The data center is part of the "Stargate Project," which aims to build large AI data centers in the U.S. with a total investment of $500 billion [1][2] - The data center is expected to be operational by mid-2026 and will have a power capacity of 1.2 gigawatts, making it one of the largest data centers globally [2] Group 2 - Oracle's involvement in the "Stargate Project" and the operation of the data center is seen as a key opportunity to enhance its cloud computing competitiveness against giants like Microsoft, Amazon, and Google [2] - OpenAI's reliance on Microsoft for computing power has exceeded Microsoft's supply capacity, making the new data center crucial for OpenAI [2] - AI data centers require specialized hardware and infrastructure to handle the high-intensity computing needs of AI workloads, differing fundamentally from traditional data centers [3]

文 | 张冰冰 编辑 | 阿至 36氪获悉，中海储能科技（北京）有限公司（以下简称「中海储能」）近日宣布完成超亿元Pre-A++轮融资。此次融资由蚂蚁集团领投，君恒投资、北京 昌平中小企业成长投资基金跟投，资金将主要用于技术研发及产能扩大。「中海储能」历史投资人为红杉中国、源码资本、清流资本和经纬中国。 「中海储能」成立于2020年，瞄准规模化长时储能领域，专注于铁铬液流电池技术的研发与应用。其自主研发的铁铬液流电池技术解决了可再生能源大规 模并网的消纳难题，产品入选国家能源领域首台（套）重大技术装备名录，获得"国家高新技术企业"和"北京市专精特新企业"称号。 近期，「中海储能」宣布中标惠阳区50MW/300MWh独立新型储能电站项目，项目总投资近十亿元。目前，「中海储能」已形成以北京总部为核心的全 国化产业布局，年产能达1GWh，规划在多地建设产业基地。 「中海储能」惠阳区储能电站项目 一、交叉学科研发团队，自主突破液流电池技术瓶颈 在新型电力系统加速发展的背景下，风力发电与光伏发电规模持续扩大。受气象条件制约，这类新能源发电存在间歇性特征，直接并网将对电网稳定性构 成挑战。因此，需在发电场配套建设长时储能 ...

图 点击 上方 硬AI 关注我们 当地时间5月21日，纳微半导体公司宣布与英伟达合作开发下一代800V高压直流(HVDC)架构，为包括Rubin Ultra在内的 GPU提供支持的"Kyber"机架级系统供电。Navitas的氮化镓和碳化硅技术将在这一合作中发挥关键作用。周三美股盘 后，纳微股价一度暴涨200%。 硬·AI 当地时间5月21日，纳微半导体公司宣布与英伟达合作开发下一代800V高压直流(HVDC)架构，为包括 Rubin Ultra在内的GPU提供支持的"Kyber"机架级系统供电。 纳微的氮化镓和碳化硅技术将在这一合作中 发挥关键作用 。 有媒体指出，这代表了数据中心基础设施领域的重大技术飞跃，特别是在支撑吉瓦级AI计算负载方面， 纳 微的技术将一定程度上大幅提升能效并降低铜材使用量 。周三美股盘后，纳微股价一度暴涨200%。 01 催A生I时革代命的性电解力决需方求案 现代AI数据中心需要吉瓦(GW)级的电力来满足不断增长的AI计算需求。 作者 |鲍奕龙 编辑 | 硬 AI 英伟达正与纳微半导体(Navitas)展开战略合作，共同开发800V电力架构，有望彻底改变AI数据中心的电 力供应系统 ...

Core Insights - Nvidia is collaborating with Navitas Semiconductor to develop an 800V power architecture aimed at transforming the power supply systems for AI data centers [1][2] - The partnership leverages Navitas's GaN and SiC technologies, which are expected to significantly enhance energy efficiency and reduce copper usage in data center infrastructure [1] - The current data center architecture, which operates on a traditional 54V system, is reaching its physical limits as power demands increase beyond 200kW [1] Group 1 - Nvidia's solution involves converting 13.8kV AC grid power directly to 800V high-voltage DC, utilizing solid-state transformers and industrial-grade rectifiers to maximize efficiency and reliability [2] - The implementation of 800V HVDC allows for a reduction in copper wire thickness by up to 45%, addressing sustainability concerns for next-generation AI data centers that require gigawatt-level power [2] - Traditional 54V DC systems require over 200kg of copper to supply power to a 1MW rack, which is unsustainable for the increasing power needs of modern AI applications [2]

Group 1: Opportunities for Domestic Substitution - Domestic companies are making significant technological breakthroughs in the silicon carbide (SiC) sector, narrowing the gap with international leaders, particularly in the electric vehicle (EV) market [2] - In 2023, China's market share of SiC epitaxial wafers reached 38.8%, ranking first globally, driven by increased production capacity [3] - National policies are increasingly supportive of key semiconductor materials, with the "14th Five-Year Plan for Integrated Circuit Industry" emphasizing the need to overcome technological bottlenecks in third-generation semiconductor materials [4] Group 2: Restructuring Industry Landscape - The core competitiveness of the SiC industry chain lies in the self-sufficiency of upstream materials and equipment, with companies mastering key equipment and high-end materials poised for rapid growth [5] - Domestic companies are accelerating their catch-up in device manufacturing, especially in automotive-grade SiC power devices, benefiting from the continuous growth of the EV market [6] - The application scenarios for SiC are expanding beyond EVs to include photovoltaic power generation, rail transportation, and industrial power supplies, positioning domestic companies for significant global market presence [7] Group 3: Dual-Driven Growth of Domestic Breakthroughs - Chinese companies have established a significant cost advantage through continuous R&D and process innovation, with 6-inch substrate prices at only 30% of international levels [8] - The acceleration of equipment localization is exemplified by Northern Huachuang's new generation SiC crystal growth furnace, which reduces equipment prices by 50% and surpasses key performance indicators [9] Group 4: Market Opportunities for Domestic SiC - The EV market is the largest application for SiC, with projected production and sales of 12.888 million and 12.866 million units in China for 2024, reflecting year-on-year growth of 34.4% and 35.5% [12] - In the photovoltaic and energy storage sectors, SiC is a key technology for improving system efficiency, with China's new photovoltaic installations expected to reach 277.2 GW in 2024, a 27.8% increase [13] - Emerging technologies such as AI data centers and AR glasses present new growth opportunities for the SiC industry, with AI data centers requiring high-efficiency power modules [14] Group 5: Benefiting Companies - Tianyue Advanced is one of the few global participants capable of mass-producing 8-inch SiC substrates, with a projected global market share ranking second in conductive SiC substrate materials by 2024 [16] - Tianshuo He Da is the largest domestic supplier of power electronics SiC substrates, holding a 17.3% share in the global market, and is positioned to capture orders following Wolfspeed's bankruptcy [16] - Sinda Semiconductor is making progress in the SiC sector, with its SiC MOSFET modules for passenger vehicle motor controllers seeing increased volume [16] - Mind Electronics, through its subsidiary Guangxin Microelectronics, is expected to achieve an annual production capacity of 36,000 6-inch SiC wafers, with costs significantly lower than competitors [17]

Group 1 - The coal industry is expected to see a decline in operating revenue in 2024, with a decrease in operating cash flow and significant net outflow in investment cash flow. However, overall debt repayment capability remains strong despite high leverage and increasing debt levels [4] - In 2025, coal enterprises' profitability will still be constrained, but there will be support for overall profitability. Operating cash flow is expected to remain relatively ample, while investment cash flow will continue to show a rigid net outflow [4] Group 2 - The banking sector is experiencing a systematic decline in interest rates due to recent monetary policy measures, with an expected improvement in industry interest margins by over 5 basis points. The management of funding costs is anticipated to alleviate pressure on interest margins [5] - The banking sector's fundamentals are stable, and there is optimism regarding the performance of bank stocks moving forward [5] Group 3 - In April 2025, the total retail sales of consumer goods reached 3.72 trillion yuan, showing a year-on-year growth of 5.1%, although the growth rate decreased by 0.8 percentage points compared to March. From January to April, the total retail sales amounted to 16.18 trillion yuan, with a year-on-year growth of 4.7%, an increase of 0.6 percentage points compared to the same period last year [6] - The restaurant industry is showing signs of recovery, with an increase in the number of stores and a rise in market activity in first-tier cities. Policy stimuli are expected to improve demand, while competition among stores is intensifying [10] Group 4 - The recent easing of trade tensions between China and the U.S. has led to a surge in shipping demand, resulting in a rapid increase in freight rates for routes between the U.S. and China. The average freight rates for the U.S. West and East routes rose by 31.7% and 22.0%, respectively [8]

以下文章来源于凤凰网财经 ，作者凤凰网财经 凤凰网财经 . 你好，我们是凤凰网财经，全球华人都在看的财经公众号，传播最有价值的财经报道，你值得关注！欢 迎访问：http://finance.ifeng.com/ 美东时间4月2日下午，特朗普在白宫玫瑰园召开特别发布会，宣布美国进入"国家紧急状态"，并绕 过国会90天法定审议程序，对全球所有国家和地区征收10%的"基准关税"，对部分贸易伙伴加征高额 的所谓"对等关税"，4月9日正式生效。 特朗普的这份全球关税名单中， 甚至包括南极附近的无人岛群赫德岛与麦克唐纳群岛，只有海豹、 企鹅栖息的自然保护区甚至也被纳入征税。 | Reciprocal Tariffs | | | | --- | --- | --- | | Country São Tomé and Príncipe | 10% | 10% | | Norfolk Island | 58% | 29% | | Gibraltar | 10% | 10% | | Tuvalu | 10% | 10% | | British Indian Ocean Territory | 10% | 10% | | Tokel ...