Core Viewpoint - The article discusses the evolution of cooling technologies in response to increasing chip power densities, highlighting the limitations of traditional copper cooling solutions and the emergence of advanced materials like diamond and graphene composites for effective thermal management [2][4][28]. Group 1: Chip Power Trends - The power consumption of GPUs has escalated from 700W to 1400W, with future models potentially reaching 4000W, necessitating a shift from optional to mandatory liquid cooling solutions [4][10]. - The maximum system power for cabinets is projected to increase from approximately 140kW to around 600kW by 2027, indicating a significant rise in thermal management challenges [3][4]. Group 2: Material Limitations and Innovations - Traditional pure copper cooling solutions have a thermal conductivity of 380-400 W/mK, which may not suffice for the heat dissipation required at higher power levels, leading to potential heat accumulation [5][28]. - The article emphasizes the need for new materials as traditional metals reach their physical limits, with a focus on high thermal conductivity composite materials like diamond and graphene [8][28]. Group 3: Advanced Cooling Technologies - The evolution from single-phase to two-phase cooling technologies is highlighted, with companies like 双鸿科技 proposing a roadmap for material optimization in thermal management [8][10]. - Diamond composites can achieve thermal conductivities of 600-800 W/mK, significantly enhancing heat dissipation capabilities compared to copper [11][12]. - Graphene-copper composites are positioned as a key technology for 2025-2026, offering improved thermal performance while maintaining compatibility with existing manufacturing processes [21][22]. Group 4: Future Directions in Thermal Management - The article suggests a trend towards heterogeneous integration in cooling solutions, where different materials are used strategically across various components to optimize thermal management [28]. - The use of composite phase change materials (CPCM) is proposed as a method to absorb transient heat spikes, providing additional thermal stability during peak loads [27][28].

Core Viewpoint - The research introduces a novel mechanism called "slip-enhanced close-contact melting" (sCCM) to enhance the charging rate of phase-change thermal batteries without sacrificing energy density [4][5]. Group 1 - The phase-change thermal battery utilizes materials like paraffin, hydrated salts, and sugar alcohols to store heat through phase change latent heat, but high energy density and rapid charging/discharging are typically conflicting requirements [3]. - The research team achieved a new record power density of 1100 ± 2% kW/m³ in their prototype using organic phase-change materials [5]. - The proposed strategy involves a rational design of composite coatings that facilitate sCCM, integrating a pulse heating layer to pre-melt phase-change materials and a slip interface to maintain efficient melting during charging [5]. Group 2 - The strategy is adaptable and scalable, making it applicable to various phase-change materials across a wide temperature range, thus enabling high-performance thermal energy storage [6].

Core Viewpoint - The development of a new strategy to enhance energy density in composite phase change materials through hydrogen bond enhancement is a significant advancement in thermal energy storage technology [1] Group 1: Research Findings - A team led by Professor Fan Liwu and PhD student Li Zhirui from Zhejiang University has proposed a method to restore energy density in composite phase change materials [1] - The use of hydroxylated graphene significantly improves the latent heat recovery of erythritol composite materials compared to unmodified graphene [1] Group 2: Implications and Applications - This strategy is based on commercially available hydroxylated nanofillers, making it easy to apply across various phase change material systems, including polyols, fatty acids, and hydrated salts [1] - The approach provides a feasible technical pathway for developing the next generation of high-performance, long-life thermal energy storage and management systems, with potential applications in renewable energy integration, industrial energy conservation, and electronic thermal management [1]