科技日报记者 王禹涵 近日，记者从隆基绿能科技股份有限公司获悉，该公司联合苏州大学、西安交通大学等研究团队研发的商业尺寸硅片级柔性叠层电池效率达29.8%，获德国 弗劳恩霍夫太阳能研究所认证，成为全球首个获权威认证的该类型电池效率世界纪录。该成果于11月10日在《自然》杂志在线发表。 晶硅-钙钛矿叠层电池技术通过融合两种半导体材料的优势，将理论效率大幅提高，是公认的新一代光伏技术。然而其商业化一直面临柔性与稳定性难以兼 顾的核心难题。 传统观念认为单晶硅是刚性脆性材料，研究团队通过将硅片厚度降至60微米，使其具备柔韧性，弯曲半径低于2厘米也不会破裂，但钙钛矿功能层在弯曲时 易分层失效的问题，仍制约着其实际应用。 为此，研究团队创新构建了"疏松加致密"的双层SnOx缓冲层结构，其中疏松层能像弹簧床垫一样吸收机械应力，致密层则确保高效的电荷传输。这一设计 有效化解了应力缓冲与高效传输的矛盾。 基于该技术，研究团队研制出厚度仅60微米的超薄全硅片柔性叠层器件，不仅实现了近30%的转换效率，还可实现对折，弯曲半径达1.5厘米，重量不到4.4 克，单位重量功率高达1.77瓦/克。实验室小面积器件效率经美国国家可再生能源 ...

Core Insights - The storage chip market is experiencing an unusual price inversion, where the older DDR4 memory is priced higher than the more advanced DDR5, with DDR4 32GB RDIMM prices exceeding $290, a rise of over 300% since the beginning of the year, while DDR5's price increase is less than half of that [1] - The price discrepancy is driven by deep-seated supply and demand issues, as many domestic data centers continue to use DDR4-compatible CPU platforms, while major DRAM manufacturers are phasing out DDR4 production [1][2] - The shift towards DDR5 is being propelled by AI applications, with DDR5 now accounting for over 90% of the global server DRAM market, but the domestic ecosystem is lagging in adaptation [2][3] Supply and Demand Dynamics - Major storage companies like Samsung and SK Hynix are focusing production on DDR5 and high-bandwidth memory for AI, leading to a continuous reduction in DDR4 production lines [2][4] - Some distributors are stockpiling DDR4 inventory, causing irrational price increases, with some transactions exceeding a 50% premium, indicating a departure from normal pricing mechanisms [2] Industry Challenges - The transition to DDR5 requires comprehensive support from CPUs, motherboards, and software, which poses a challenge for domestic manufacturers [3] - If the industry remains reliant on DDR4 technology, it risks falling behind in the global AI computing competition, as DDR4's price advantage has diminished due to its rising costs [4][3] Strategic Recommendations - Industry stakeholders are urged to recognize the opportunity presented by the transition to DDR5 rather than struggling in the distorted DDR4 market [5]

Core Insights - The 20th Global Forum on Human Settlements (GFHS) was held in Geneva, Switzerland, where Chinese company Abok Building Materials (Kunshan) Co., Ltd. received the "New Sustainable City and Human Settlements Award" for its LP Low-Carbon Intelligent Construction System [1] - The "New Sustainable City and Human Settlements Award" was established in 2005 to recognize innovation and leadership in sustainable urban and human settlement practices, with 19 projects awarded this year, 9 of which are from China [1] - The LP Low-Carbon Intelligent Construction System re-engineers traditional construction methods by transferring key processes to factory settings, utilizing specialized equipment and robots for standardized production, and employing AI algorithms for comprehensive process control [1][2] Industry Impact - The LP system's robots operate at approximately 9 times the efficiency of human labor, reducing construction cycles by about 40%, while enhancing quality consistency, safety, and management efficiency [2] - The LP system emphasizes "full-process green manufacturing," utilizing clean energy and photovoltaic systems, achieving "zero wastewater and low energy consumption" in production, and reducing material waste by approximately 10% [4] - Buildings constructed using the LP system can reduce carbon emissions by about 20% over their entire lifecycle compared to traditional construction methods, according to calculations from Tongji University [4] Collaborative Efforts - Abok Building Materials has established partnerships with universities such as Tongji University and Southeast University to create industry-academia-research centers and has contributed to local standards for prefabricated construction technologies [4] - The LP system has been implemented in regions including Jiangsu, Shanghai, and Sichuan, and is being exported internationally, forming an integrated output system of "technology + equipment + standards + training" [4]

Core Insights - The launch of autonomous delivery vehicle road testing in Jiamusi marks the city as the first in Heilongjiang Province to implement unmanned express delivery applications [1] - The testing involves five planned routes and six autonomous vehicles, focusing on validating smart logistics scenarios [1] Group 1: Testing Details - The testing includes two vehicles purchased by China Post's Jiamusi branch for point-to-point transport testing between the postal center and Hongqi delivery department [1] - The route covers major urban roads and residential areas, allowing comprehensive evaluation of vehicle stability and safety in complex scenarios such as traffic light changes and intersection turns [1] Group 2: Technology and Safety - The autonomous vehicles are equipped with a multi-sensor fusion perception system and high-precision positioning technology, provided by New Stone Technology (Beijing) Co., Ltd [1] - The technology has been validated through extensive testing, achieving "zero errors" and "zero accidents" in previous missions, while adhering to local regulations and establishing a robust safety assurance system [1] Group 3: Strategic Implications - This testing initiative is a proactive effort to cultivate new growth momentum and build new development advantages for the local economy [1] - It also supports the modernization of urban governance and the construction of smart cities [1]

Core Insights - The establishment of the Liaoning Free Trade Zone in 2017 has led to significant innovations by Dalian Customs, enhancing operational efficiency and reducing costs for businesses [1][2] - Dalian Customs has implemented over 50 innovative measures, with several being recognized at the national level, contributing to a substantial increase in the region's foreign trade [1][2] Group 1: Innovations and Efficiency - The "cloud series" innovations by Dalian Customs have improved customs clearance efficiency by over 60%, allowing for a fully paperless process [2] - The electronic certification platform has issued over 400,000 certificates, covering 23 categories of products and accounting for over 90% of export certification business [2] - The introduction of electronic import food inspection and quarantine certificates has reduced clearance time by 50% [2] Group 2: Industry-Specific Initiatives - Dalian Customs has pioneered the "bulk commodity + reform" initiative, facilitating the import and export of key commodities like iron ore and liquefied natural gas [3] - The "zero delay" supervision in the semiconductor industry allows for 24-hour rapid flow of high-precision raw materials [3] - The AI-driven vehicle identification system at the Dalian Free Trade Zone has enabled a "second-level registration" process for exported vehicles, significantly streamlining operations [3] Group 3: Cost Savings and Long-term Growth - The new regulatory model for lithium battery packaging has saved companies approximately 130 million yuan by allowing for the reuse of packaging without the need for re-inspection [4] - Customized clothing export growth has been supported by intelligent regulatory models and preferential tax matching under free trade agreements [5] - Dalian Customs aims to continue focusing on strategic enhancements within the free trade zone to drive high-quality foreign trade development in Liaoning [5]

湖南广播影视集团有限公司（湖南广播电视台）董事长龚政文表示，信息技术日新月异，人工智能 即将迎来真正的爆发，要积极投入文化和科技融合发展，实施"人工智能+视听"行动，以"文化+科技"双 前锋重构发展基因，将人工智能、虚拟现实、超高清等新技术作为底层架构，打造功能强大的数智基 座。 江苏省委宣传部副部长胡连生提出，要进一步发挥主流媒体主力军、自媒体生力军作用，推动主流 媒体与政务平台、商业平台和自媒体同频共振，既"创造流量""接住流量"，更"引导流量"。 作为第七次举办的行业盛会，大会由中华全国新闻工作者协会与湖南省人民政府联合主办，设立 了"全媒体生产传播变革"内容创新论坛、"创新·变革·共赢"财经传媒论坛、"智媒新生态：人机协同与价 值共创"技术应用论坛等7场平行论坛，以及2025中国新媒体技术展、"马栏山新媒体之夜"沉浸式互动活 动等6场主题活动。 当前，人工智能等新兴技术正驱动全媒体传播体系的智能化升级，推动主流媒体加速实现从"融 媒"到"智媒"的跃迁式发展。从"相加"到"相融"再到"深融"，大会精准把握媒体改革深化的时代脉络，呼 应人工智能引领的技术革命浪潮，为构建主流舆论新格局、助力中国式现代化建设 ...

Core Viewpoint - The State Power Investment Corporation (SPIC) has launched a demonstration project named "Tuqiang" for ultra-large floating offshore wind turbine foundation technology in Yangjiang, Guangdong, marking significant progress in the floating offshore wind power sector in China [1][2] Group 1: Project Overview - The demonstration project is located in the Yangjiang Sanshan Island offshore wind farm area, with water depths exceeding 50 meters, and is scheduled for completion and application verification by the end of 2026 [1] - The project aims to address the cost control challenges associated with floating wind power, which is crucial for the commercialization of deep-sea floating wind energy in China [1] Group 2: Technical Development - The project will focus on developing the first ultra-large foundation equipment suitable for 20 megawatt (MW) floating wind turbines, utilizing integrated design, simulation testing, and intelligent monitoring technologies [1] - The initiative aims to balance structural safety in complex marine environments with lightweight design and cost control by strictly managing the steel usage per megawatt and the cost per kilowatt [1] Group 3: Collaborative Efforts - Since its approval in December 2023, SPIC has formed a collaborative team with 10 entities, including Zhejiang University and Shanghai Jiao Tong University, to establish a comprehensive system for overcoming key bottlenecks in the industrialization of deep-sea floating wind power [2]

Core Insights - The article highlights a transformative approach to photovoltaic (PV) technology, showcasing its integration into architectural aesthetics and functionality, particularly at the "Building Photovoltaic Zero Carbon Aesthetics" exhibition in Beijing [1][2]. Group 1: Exhibition Overview - The 22nd China International Housing Industry and Building Industrialization Products and Equipment Expo took place from November 6 to 9, featuring a dedicated area for "Building Photovoltaic Zero Carbon Aesthetics" [1]. - The exhibition included three main sections: colorful photovoltaic curtain wall aesthetics, practical photovoltaic tiles, and innovative technology, demonstrating advancements in building-integrated photovoltaics (BIPV) [1][2]. Group 2: Colorful Photovoltaic Curtain Walls - Colorful photovoltaic technology addresses the aesthetic and efficiency imbalance in traditional PV systems, offering products that are visually appealing and efficient [2]. - Various types of colorful photovoltaic curtain walls were showcased, including pure color, stone-like, and aluminum-like designs, enhancing the visual appeal of buildings [2]. - Notable products included Yingchen and Jiasheng's series that blend traditional Chinese architectural elements with modern PV technology, and Longyan Energy's "Yicai" colored photovoltaic materials that maintain color durability for over 20 years with minimal impact on efficiency [2]. Group 3: Practical Photovoltaic Tiles - The practical photovoltaic tile section presented tiles that combine solar energy generation with traditional roofing functions, effectively replacing conventional tiles [3]. - A significant project highlighted was the "Zero Carbon Small House" in Anhui, which integrates PV technology into various building elements, achieving a total installed capacity of 108.6 kW and an expected annual generation of 107,100 kWh [3]. Group 4: Innovative Technologies - The innovative technology section focused on emerging technologies in the PV industry, showcasing advancements that transition buildings from energy consumers to energy producers [5]. - Examples included the world's first "dragon scale" PV roof at the Wuxi Symphony Hall, featuring a capacity of 1,240 kW, and various innovative PV products designed for architectural integration [5]. Group 5: Industry Growth and Future Prospects - The article notes that since the introduction of the "dual carbon" goals, the installed capacity of building photovoltaics has rapidly increased, reaching 365 million kW by the end of 2024, accounting for 41.2% of the total PV capacity in China [6]. - The ongoing development of innovative technologies and engineering cases is expected to further enhance the role of building photovoltaics in optimizing energy structures and promoting low-carbon transitions [6].

Core Insights - The research team from the University of Science and Technology of China has developed an innovative electro-thermal lattice metamaterial that allows for both independent and collaborative programming control of electric and thermal fields, addressing a significant challenge in multi-physical field coupling control [1][2]. Group 1: Research Innovation - The new design paradigm of electro-thermal lattice metamaterials utilizes a modular design strategy, creating a lattice network composed of identical lattice units connected by high thermal and electrical conductivity "bridges" [1]. - By adjusting the spatial positions and geometric shapes of the lattice units within a unified topological framework, the team has achieved collaborative shaping of electric and thermal fields, overcoming the limitations of traditional static designs [1][2]. Group 2: Functional Demonstration - The research team successfully demonstrated multiple functionalities of electric and thermal fields on the same metamaterial device, including the ability to guide field lines around a region for "invisibility," focus energy at a point, and change the direction of field propagation [2]. - The team has also fabricated complex-shaped field control devices, such as heart and pentagram shapes, showcasing the strong customization capabilities of this metamaterial [2]. Group 3: Implications for Technology Development - This research represents the first successful programmable decoupling control of coupled electric and thermal fields, challenging the traditional understanding that "material properties determine field control capabilities" [2]. - The findings provide core technological support for the development of devices in complex multi-physical field environments, which is crucial for advanced applications in smart energy management and high-performance electronic devices [1][2].

（原载于《科技日报》 2025-11-13 02版） 辽宁材料实验室党委副书记、副主任李秀艳在接受科技日报记者专访时介绍，卢柯研究员团队长期 致力于金属材料结构调控与性能突破研究。2018年，该团队首次发现，当纳米金属的晶粒小于70纳米 时，晶界能量下降，结构稳定性不降反升，这颠覆了传统"纳米晶粒越小越不稳定"的认知。2020年，团 队进一步探索晶粒尺寸极限，将纯铜晶粒细化至4—5纳米时，发现材料转变为一种新结构，晶界呈现三 维周期性极小面特征，将其命名为"受限晶体"。在最新研究中，团队聚焦尺度更小的界面结构（平均 0.7纳米/3—4原子层）。 "我们通过电化学沉积结合非晶化方法，发现在Ni-Mo合金中存在一种过剩能为负的界面。这种界 面比孪晶界面更加稳定，显著提升了合金的强度和弹性模量。"李秀艳说，该研究不仅突破了现有材料 理论的认知，首次证实界面过剩能可以为负，而且在Ni-W等其他材料体系也发现了亚纳米"负能界 面"强化效应。相关合金已取得中试成果，有望推动高精密耐磨部件的技术升级。 11月12日，记者从辽宁材料实验室获悉，该实验室与中国科学院金属研究所联合研究团队近日取得 重大技术突破。研究人员在金属中 ...