Nano Energy最新文献_第2页

Fluid-interface-based high-performance mechanical sensors 基于流体接口的高性能机械传感器

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-12-04 DOI: 10.1016/j.nanoen.2025.111636

Ningle Hou , Liang Xu

The interface between immiscible fluids, characterized by its susceptibility, diversity, structural flexibility, and easy accessibility, shows high capability to transduce mechanical stimuli into measurable electrical signals. Through deformation or interfacial charges, it can offer a novel paradigm for constructing advanced mechanical sensors in robotics, personal healthcare, Internet of Things and other emerging fields. This paper provides a comprehensive review of the recent research progress in mechanical sensors in terms of fluid interfaces and offers a prospect on their emerging application fields. Firstly, the fundamental physicochemical principles governing fluid interfaces, such as contact angle, surface tension, and electric phenomena, are elucidated, which underpin their sensing mechanisms. Then, the latest advancements in the structural design, fabrication methodology, and performance of these sensors are systematically discussed. Furthermore, their transformative potential in a wide range of applications is highlighted. Finally, by analyzing current challenges and opportunities, we forecast future development trends and identify promising, yet underexplored, application domains for fluid-interface-based sensors (FIB sensors).

非混相流体之间的界面具有易感性、多样性、结构灵活性和易接近性等特点，显示出将机械刺激转化为可测量电信号的高能力。通过变形或界面电荷，可以为机器人、个人医疗、物联网等新兴领域构建先进的机械传感器提供新的范例。本文从流体界面角度综述了近年来机械传感器的研究进展，并对其应用前景进行了展望。首先，阐述了控制流体界面的基本物理化学原理，如接触角、表面张力和电现象，这些原理支撑了它们的传感机制。然后，系统地讨论了这些传感器在结构设计、制造方法和性能方面的最新进展。此外，还强调了它们在广泛应用中的变革潜力。最后，通过分析当前的挑战和机遇，我们预测了未来的发展趋势，并确定了基于流体界面的传感器（FIB传感器）有前途但尚未开发的应用领域。

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引用次数: 0

Engineering strongly coupled W-doped Bi2S3 and metallic 1T-WS2 heterostructure to bidirectionally catalyze the polysulfide conversion with enhanced kinetics 工程强耦合w掺杂Bi2S3和金属1T-WS2异质结构双向催化多硫化物转化，增强动力学

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-12-02 DOI: 10.1016/j.nanoen.2025.111635

Jinrui Zhou , Zhiying Liang , Chulong Liu , Rongjun Xie , Daoping Cai , Baisheng Sa , Qidi Chen , Chaoqi Zhang , Hongbing Zhan

Lithium-sulfur (Li-S) batteries have been considered as potential candidates for next-generation energy storage systems. However, their commercialization is seriously constrained by the sluggish polysulfide conversion kinetics and the notorious shuttle effect. Herein, for the first time, an innovative “dissolution-redeposition” strategy is proposed to synthesize the strongly coupled W-doped Bi₂S₃ and metallic 1T-WS₂ heterostructure (W-Bi₂S₃/1T-WS₂), which enhances the bidirectional redox kinetics of polysulfide intermediates. Noteworthily, the hierarchical structure supplies plenty of catalytic active sites, facilitates the electron/ion transportation, and enlarges the electrode/electrolyte contact area. Additionally, the strong electronic coupling between W-Bi₂S₃ and 1T-WS₂ is beneficial for enhancing the electrocatalytic activity and ensuring the structural stability. Thanks to the distinctive structural and compositional benefits, the Li-S batteries assembled with W-Bi₂S₃/1T-WS₂ separators exhibit excellent electrochemical performance including high specific discharge capacity, outstanding rate capability, and good long-term cycling stability. More importantly, a pouch cell employing the W-Bi₂S₃/1T-WS₂ separator is also fabricated, which showcases great potential for practical applications. Furthermore, combined experimental and theoretical calculation results substantiate that the W-Bi₂S₃/1T-WS₂ heterostructure possesses higher electrical conductivity, stronger chemisorption for polysulfides and reduced energy barriers compared to W-Bi₂S₃ and 1T-WS₂ counterparts. This work provides a new perspective for developing high-efficiency heterostructure electrocatalysts towards Li-S batteries.

锂硫（li -硫）电池被认为是下一代储能系统的潜在候选者。然而，它们的商业化受到多硫化物转化动力学缓慢和臭名昭著的穿梭效应的严重制约。本文首次提出了一种创新的“溶解-再沉积”策略，合成了w掺杂Bi2S3和金属1T-WS2强耦合异质结构（W-Bi2S3/1T-WS2），增强了多硫化物中间体的双向氧化还原动力学。值得注意的是，层次化结构提供了大量的催化活性位点，有利于电子/离子的传递，扩大了电极/电解质的接触面积。此外，W-Bi2S3与1T-WS2之间的强电子耦合有利于提高电催化活性和保证结构稳定性。由于W-Bi2S3/1T-WS2隔膜具有独特的结构和成分优势，其锂电池具有优异的电化学性能，包括高比放电容量，出色的倍率能力和良好的长期循环稳定性。更重要的是，还制作了采用W-Bi2S3/1T-WS2分离器的袋状电池，显示出巨大的实际应用潜力。此外，结合实验和理论计算结果证实，与W-Bi2S3和1T-WS2异质结构相比，W-Bi2S3/1T-WS2异质结构具有更高的导电性、更强的多硫化物化学吸附能力和更低的能垒。本研究为开发高效的锂硫电池异质结构电催化剂提供了新的思路。

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引用次数: 0

High-entropy chalcogenides via ambient and scalable synthesis for efficient OER catalysis 高熵硫族化合物在环境和可扩展合成中的高效OER催化

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-12-01 DOI: 10.1016/j.nanoen.2025.111634

Linwei Jiang , Bosong Duan , Shengjian Lin , Franca Jones , Yunguo Li , Zhenhai Wen , Guohua Jia

The synthesis of high-entropy metal chalcogenides has long been constrained by the constraints of high-temperature synthesis, a process that is both time-intensive and energy-demanding due to formidable entropic barriers. Herein, we report a rapid, cost-effective, and ambient-temperature synthesis of high-entropy metal chalcogenides entirely in aqueous solution. This mild yet potent approach facilitates the formation of (NiCoFeMnCr)S, (NiCoFeMnCr)Se and (NiCoFeMnCr)Te which exhibit outstanding performance for the oxygen evolution reaction. Remarkably, this method is readily scalable, capable of producing over 100 g of high-entropy sulfide materials in a single batch. Beyond delivering highly active and energy-efficient OER electrocatalysts, this work establishes a versatile and sustainable pathway for the low-temperature, large-scale synthesis of diverse high-entropy nanomaterials, broadening the synthetic landscape for next-generation energy technologies.

高熵金属硫族化合物的合成长期以来受到高温合成的限制，由于巨大的熵垒，这一过程既耗时又耗能。在此，我们报告了一种在水溶液中快速、经济、室温合成高熵金属硫族化合物的方法。这种温和而有效的方法促进了（NiCoFeMnCr）S, (NiCoFeMnCr)Se和（NiCoFeMnCr）Te的形成，在析氧反应中表现出优异的性能。值得注意的是，这种方法易于扩展，能够在单批中生产超过100 g的高熵硫化物材料。除了提供高活性和节能的OER电催化剂外，这项工作还为低温、大规模合成各种高熵纳米材料建立了一条通用的、可持续的途径，拓宽了下一代能源技术的合成领域。

引用次数: 0

Perturbing d-band center via high-entropy modulation within spinel lattices toward enhanced oxygen evolution reaction catalysis 利用高熵调制扰动d波段中心。尖晶石晶格内增强析氧反应催化

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-12-01 DOI: 10.1016/j.nanoen.2025.111632

Jiwoo Song , Ramesh Kumar Chitumalla , Myung Hwa Kim , Joonkyung Jang , Dasol Jin

With a multimetallic composition featuring diverse oxidation states and coordination environments, high-entropy oxides (HEOs) provide tunable affinities toward oxygen intermediates, thereby alleviating the intrinsic kinetic barriers of oxygen evolution reaction (OER). This compositional and structural diversity allows modulation of the reaction pathway and reduction of the activation barrier for the inherently sluggish four-electron OER process. Herein, we report the synthesis of a nanobelt-shaped, single-phase pentametallic spinel oxide (Co_1.8Cr_0.3Rh_0.3Fe_0.3Ni_0.3)O₄ as an entropy-engineered electrocatalysts with tunable electronic structures for efficient OER. The multimetallic synergy upshifts the metal d-band center toward the Fermi level, optimizing oxygen intermediate binding and thereby reducing the OER overpotential. Compared to commercial IrO₂ in 1 M KOH, the spinel oxide exhibits a lower overpotential (1.58 V vs. RHE at 10 mA cm^–2), a smaller Tafel slope (66.1 mV dec^–1) and excellent durability maintaining stable performance over 12 h. These results highlight the potential of high-entropy spinel oxides, rationally engineered through multimetallic design, to achieve superior OER activity by finely tuning adsorption energetics and mitigating kinetic limitations.

高熵氧化物（HEOs）具有多种氧化态和配位环境的多金属组成，对氧中间体具有可调节的亲和力，从而减轻了析氧反应（OER）的内在动力学障碍。这种组成和结构的多样性允许调节反应途径和降低固有的缓慢的四电子OER过程的激活势垒。本文报道了一种纳米带状、单相五金属尖晶石氧化物（Co1.8Cr0.3Rh0.3Fe0.3Ni0.3）O4作为具有可调谐电子结构的熵工程电催化剂的合成。多金属协同作用使金属d带中心向费米能级上升，优化了氧中间体结合，从而降低了OER过电位。与商用IrO2相比，在1 M KOH中，氧化尖晶石表现出较低的过电位（10 mA cm-2时1.58 V vs. RHE），较小的Tafel斜率（66.1 mV dec1）和优异的耐久性，可在12小时内保持稳定性能。这些结果表明，通过多金属设计合理设计的高熵尖晶石氧化物具有通过微调吸附能量和减少动力学限制来实现卓越OER活性的潜力。

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引用次数: 0

Energy-efficient Ising solver implementations in forming-free memristor crossbar arrays for combinatorial optimization problems 组合优化问题中免形成忆阻交叉栅阵列的节能求解器实现

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-11-30 DOI: 10.1016/j.nanoen.2025.111633

Sangwook Youn , Kyuree Kim , Jinwoo Park , Hyungjin Kim

The core approach of Ising solvers for combinatorial optimization problems is the simulated annealing (SA) algorithm. Although hardware-based SA methods have been explored in electronic, optical, and quantum systems, studies that explicitly consider the conductance range and noise characteristics of memory devices remain limited. Here, we present a weight-profile design strategy for an SA-based Hopfield neural network implemented in a 32 × 32 memristor crossbar array. By optimizing the post-deposition annealing process, forming-free operation with 100 % yield and full programmability across the array is achieved. Noise analysis shows that lower conductance states and reduced read voltages induce stronger random fluctuations, which can be exploited as intrinsic noise sources. Using this property, the 32-node max-cut problem was experimentally solved by mapping subdivided conductance ranges and dynamically modulating the read voltage. Higher resistance states provided sufficient entropy to enhance SA operations, thereby improving convergence and reducing power consumption. This work demonstrates that intrinsic device noise, when combined with optimized weight-profile design, can minimize hardware overhead while significantly boosting energy efficiency and overall system performance.

伊辛求解组合优化问题的核心方法是模拟退火（SA）算法。尽管基于硬件的SA方法已经在电子、光学和量子系统中进行了探索，但明确考虑存储器件的电导范围和噪声特性的研究仍然有限。在这里，我们提出了一种基于sa的Hopfield神经网络的重量剖面设计策略，该网络实现在32 × 32忆阻器交叉棒阵列中。通过优化沉积后退火工艺，实现了100% %良率的无成形操作和整个阵列的完全可编程性。噪声分析表明，较低的电导状态和较低的读电压会引起更强的随机波动，这些随机波动可以作为本征噪声源加以利用。利用这一特性，通过映射细分电导范围和动态调制读电压，实验解决了32节点最大切割问题。更高的电阻状态提供了足够的熵来增强SA操作，从而提高收敛性并降低功耗。这项工作表明，当与优化的重量剖面设计相结合时，固有的设备噪声可以最大限度地减少硬件开销，同时显着提高能源效率和整体系统性能。

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引用次数: 0

Progress, current challenges, and future opportunities for Sn-based perovskite solar cells: A comprehensive review 锡基钙钛矿太阳能电池的进展、当前挑战和未来机遇：综合综述

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-11-30 DOI: 10.1016/j.nanoen.2025.111627

Haleema Sadia , Syed Azkar Ul Hasan , Shanza Rehan , Irshad Ali , Lyba Siddiqui , Rajab Abbas , Yasir Siddique , Sang Kyu Kwak

Among the discoveries of eco-friendly perovskite solar cells (PSCs), Sn-based PSCs have achieved a competitive advantage due to their close-to-optimal bandgap, favorable electrical and optical properties, high absorption coefficient, and enhanced carrier mobilities. Sn-based perovskites are escalating the performance ladder for the provision of Pb-free alternatives that meet the challenges posed by greener environmental standards. Currently, Sn-based perovskite (PEA_0.15FA_0.85SnI₃) and Sn-Pb mixed perovskite (Rb_0.04Cs_0.2FA_0.76 Pb_0.5Sn_0.5I₃) solar cells have achieved the power conversion efficiency (PCE) of 17.89 % and 24.13 %, respectively. However, Sn-based perovskite solar cells are still halfway in comparison with their Pb-based counterparts (27 %). To bridge the performance gap of Sn-based perovskite solar cells, there is a dire need to develop materials processing strategies that can guarantee overcoming their oxidative instability, rapid crystallization kinetics, and low defect tolerance. This review is aimed at highlighting the strategies adopted for the realization of highly efficient Sn-based photovoltaic devices through the formation of stable intermediate adducts and optimized crystallization kinetics between the solvent and the metal halide by employing a variety of solvents, antisolvents, and additive engineering approaches. Sn-based perovskites efficiency can be enhanced through the incorporation of bulky cations as spacer, and the role of defect physics has also been highlighted to combat the challenges for the pursuit of eco-friendly perovskites.

在环保钙钛矿太阳能电池（PSCs）的发现中，锡基PSCs由于其接近最佳的带隙，良好的电学和光学特性，高吸收系数和增强的载流子迁移率而获得了竞争优势。锡基钙钛矿正在提升性能阶梯，提供无铅替代品，以满足更环保标准带来的挑战。目前，sn基钙钛矿（PEA0.15FA0.85SnI3）和Sn-Pb混合钙钛矿（Rb0.04Cs0.2FA0.76 Pb0.5Sn0.5I3）太阳能电池的功率转换效率（PCE）分别达到了17.89%和24.13%。然而，锡基钙钛矿太阳能电池与铅基太阳能电池相比仍然只有一半（27%）。为了弥补锡基钙钛矿太阳能电池的性能差距，迫切需要开发能够保证克服其氧化不稳定性、快速结晶动力学和低缺陷容限的材料加工策略。本文综述了采用各种溶剂、反溶剂和添加剂工程方法，通过形成稳定的中间加合物和优化溶剂与金属卤化物之间的结晶动力学，实现高效锡基光伏器件的策略。锡基钙钛矿的效率可以通过加入大块阳离子作为间隔剂来提高，缺陷物理的作用也被强调，以应对追求环保钙钛矿的挑战。

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引用次数: 0

Fe-doping induced photo-electric dual enhancement of fluoride perovskite for photo-assisted oxygen evolution reaction fe掺杂诱导氟钙钛矿光辅助析氧反应的光电双增强

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-11-29 DOI: 10.1016/j.nanoen.2025.111631

Shijie Jia , Tingting Du , Kaini Zhang , Wenhao Li , Yidan Gao , Xin Zhang , Fengchun Yang , Shaohua Shen

Photo-assisted electrocatalysis presents a promising route for boosting the oxygen evolution reaction (OER), yet developing efficient, single-component photo-assisted electrocatalysts remains challenging. Perovskite fluorides (ABF₃) show potential but suffer from intrinsically wide bandgaps and unclear OER mechanisms. Herein, we first report the fluoride-perovskite-based photo-assisted OER catalyst K(CoNi)_0.8Fe_0.2F₃ (KCNFe_0.2F₃). The optimized KCNFe₀.₂F₃ achieves exceptional performance with an ultralow overpotential of 193 mV at 10 mA cm⁻² and a Tafel slope of 51 mV dec⁻¹ . Remarkably, an integrated membrane electrode assembly (MEA) electrolyzer employing KCNFe_0.2F₃ as the anode and Pt/C as the cathode demonstrates stable alkaline water electrolysis at 1 A cm⁻² for 300 h. Furthermore, when KCNFe_0.2F₃ was assembled with Pt/C into a photo-assisted zinc-air battery, an open-circuit voltage of 1.49 V was achieved, with stable operation for 25 h. Mechanistic studies reveal that Fe doping induces a super-exchange effect that tailors the B-site coordination environment in KCNFe_0.2F₃, consequently narrowing the bandgap and accelerating photocarrier dynamics. This synergistic effect generates abundant photogenerated charge carriers, which drive KCNFe_0.2F₃ rapid reconstruction into highly active NiCoFeOOH species at lower potentials, thus significantly enhancing OER kinetics. This work establishes a scalable design paradigm for developing stable, high-activity perovskite electrocatalysts through photon-energy coupling.

光辅助电催化为促进析氧反应（OER）提供了一条很有前途的途径，但开发高效的单组分光辅助电催化剂仍然具有挑战性。钙钛矿氟化物（ABF₃）显示出潜力，但本质上存在宽的带隙和不清楚的OER机制。本文首次报道了基于氟钙钛矿的光辅助OER催化剂K(CoNi)0.8Fe0.2F3 （KCNFe0.2F3）。优化后的KCNFe 0。₂F₃的过电位为193 mV， 10 mA - cm -⁻²，塔菲尔斜率为51 mV - dec -⁻²。值得注意的是，采用KCNFe0.2F3作为阳极，Pt/C作为阴极的集成膜电极组件（MEA）电解槽在1 A cm-2下稳定地电解碱性水300小时。此外，当将KCNFe0.2F3与Pt/C组装成光辅助锌-空气电池时，可获得1.49 V的开路电压，稳定运行25 h。机制研究表明，Fe掺杂可诱导超交换效应，调整KCNFe0.2F3中的b位配位环境，从而缩小带隙并加速光载流子动力学。这种协同效应产生了丰富的光生载流子，驱动KCNFe0.2F3在较低电位下快速重构为高活性（NiCo）FeOOH，从而显著增强了OER动力学。这项工作为通过光子-能量耦合开发稳定、高活性的钙钛矿电催化剂建立了一个可扩展的设计范例。

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引用次数: 0

Flexible dual-functional sensor for real-time glucose monitoring and pulse signal tracking 用于实时血糖监测和脉搏信号跟踪的柔性双功能传感器

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-11-28 DOI: 10.1016/j.nanoen.2025.111630

Baoying Dai , Chuyi Zhou , Rui Kong , Runhan Zhuang , Weidong Song , Shaoqiang Chen , Yukai Chen , Wenxuan Qie , Ziheng Pan , Hao Zhang , Hao Wang , Yannan Xie

Integrated monitoring of physiological and glucose signals is crucial for holistic diabetes management. This study reports a novel flexible dual-functional sensor system based on a piezoelectric-electrocatalytic composite film, integrated with a customized signal conditioning system that includes a main control chip, signal processing circuitry, a Bluetooth module, and a power management unit. The developed sensor demonstrates outstanding anti-interference performance against common electroactive interferents, high mechanical robustness with less than 6.5 % signal degradation after 100 folding cycles and only a 10.6 % reduction under 2 MPa tensile stress, excellent resistance to humidity (80 % RH), retaining 86.5 % of its original signal output under such conditions, and long-term operational stability over a four-week period with merely 11.7 % signal attenuation. More importantly, by leveraging the piezoelectric properties of the composite electrode and optimizing the signal conditioning design, the device enables accurate real-time monitoring of both pulse signals and glucose levels, achieving a glucose sensitivity of up to 13765 μV·mM⁻¹ in the low-concentration range (0.5–2 mM) and 9627 μV·mM⁻¹ over an extended range (3–15 mM). The observed dual signals can be wirelessly transmitted via Bluetooth to a computer terminal, offering an integrated platform for simultaneous metabolic and cardiovascular health assessment. This work not only promotes the integration of multifunctional sensing in flexible electronics but also provides a technical framework and theoretical foundation for the development of next-generation intelligent wearable medical devices.

综合监测生理和葡萄糖信号对糖尿病的整体管理至关重要。本研究报告了一种基于压电-电催化复合膜的新型柔性双功能传感器系统，该系统集成了一个定制的信号调节系统，该系统包括主控制芯片、信号处理电路、蓝牙模块和电源管理单元。所开发的传感器具有出色的抗常见电活性干扰性能，具有高的机械鲁棒性，在100次折叠循环后信号衰减小于6.5%，在2 MPa拉伸应力下仅降低10.6%，具有优异的耐湿度（80% RH）性能，在这种条件下保留其原始信号输出的86.5%，并且在4周内的长期运行稳定性，信号衰减仅为11.7%。更重要的是，通过利用复合电极的压电特性和优化信号调理设计，该装置可以精确地实时监测脉冲信号和葡萄糖水平，在低浓度范围（0.5-2 mM）内实现高达13765 μV·mM⁻¹的葡萄糖敏感性，在扩大范围（3-15 mM）内实现9627 μV·mM⁻¹的葡萄糖敏感性。观察到的双信号可以通过蓝牙无线传输到计算机终端，为同时进行代谢和心血管健康评估提供了一个集成平台。这项工作不仅促进了柔性电子中多功能传感的集成，而且为下一代智能可穿戴医疗设备的发展提供了技术框架和理论基础。

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引用次数: 0

Hierarchical skeleton-design for high-performance solid-state sodium metal batteries enabled by filler surface modification and in situ polymerization 通过填料表面改性和原位聚合实现高性能固态金属钠电池的分层骨架设计

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-11-27 DOI: 10.1016/j.nanoen.2025.111629

Peifeng Wang , Pu Yang , Shan Wang , Yuesheng Sun , Youlong Xu

Gel composite solid electrolytes (GCSEs) possess both high ionic conductivity and good interfacial compatibility, holding great promise for application in solid-state sodium metal batteries (SSSMBs). However, low filler content and widespread agglomeration limit their effective utilization, significantly impairing ion transport efficiency and structural consistency, thus hindering battery consistency and long-term stability. Here, a hierarchical framework-electrolyte design strategy is proposed. First, the NZSP filler is surface-modified with the silane coupling agent KH550 to enhance its compatibility with the PVDF-HFP matrix, significantly improving filler dispersion. Subsequently, a three-dimensional, uniform, porous framework with a high filler content (up to 50 wt%) is prepared using the nonsolvent-induced phase separation (NIPS) technique. Finally, after in-situ thermal polymerization of NaPF₆ electrolyte, the resulting gel composite solid electrolyte GCSE_(KN5P5) exhibits a high ionic conductivity of 1.73 mS cm⁻¹, approximately nine times that of the gel polymer electrolyte GPSE_(PVDF-HFP). In a symmetric Na||Na cell, stable cycling was achieved at a current density of 0.1 mA cm⁻² for 1500 h. Furthermore, the SSSMBs employing an NVPF cathode delivers a specific capacity of 100 mAh g⁻¹ at a high current density of 6.40 A g⁻¹ (33 C) and maintains 82 % of its initial capacity after 1000 cycles at 1.36 A g−¹ . This work provides a robust material and structural design paradigm for high-performance SSSMBs and offers general guidance for the development of next-generation solid-state energy storage systems.

凝胶复合固体电解质（gcse）具有高离子电导率和良好的界面相容性，在固态金属钠电池（SSSMBs）中具有广阔的应用前景。然而，填料含量低和广泛的团聚限制了它们的有效利用，严重影响了运输效率和结构一致性，从而阻碍了电池的一致性和长期稳定性。本文提出了一种分层框架-电解质设计策略。首先，用硅烷偶联剂KH550对NZSP填料进行表面改性，增强其与PVDF-HFP基体的相容性，显著改善填料的分散性。随后，采用非溶剂诱导相分离（NIPS）技术制备了具有高填料含量（高达50 wt%）的三维均匀多孔骨架。最后，对NaPF6电解质进行原位热聚合，得到的凝胶复合固体电解质GCSE（KN5P5）具有1.73 mS cm−1的高离子电导率，约为凝胶聚合物电解质GPSE（PVDF-HFP）的9倍。在对称Na||Na电池中，在电流密度为0.1 mA cm−2的情况下，稳定循环1500 h。此外，采用NVPF阴极的sssmb在6.40 a g−1（33 C）的高电流密度下提供100 mAh g−1的比容量，并在1.36 a g−¹ 的1000次循环后保持其初始容量的82 %。这项工作为高性能sssmb提供了一个强大的材料和结构设计范例，并为下一代固态储能系统的发展提供了一般指导。

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引用次数: 0

Intermittent self-powered health monitoring device based on stretchable flexible thermoelectric energy harvesting 基于可伸缩柔性热电能量收集的间歇性自供电健康监测装置

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-11-27 DOI: 10.1016/j.nanoen.2025.111624

Mingzhu Yuan , Yizhou Qi , Xudong Shen , Hailian Liu , Mang Shi , Rufan Yu , Shuo Huang , Dayi Chen , Shengyao Jia , Ge Shi

This paper presents an intermittent self-powered health monitoring device based on stretchable flexible thermoelectric energy harvesting to address high energy dependency, limited battery life, and high maintenance costs of traditional solutions. The device utilizes a stretchable flexible thermoelectric generator (SFTEG) that converts the temperature difference between the human body and the environment into electricity, reducing reliance on conventional batteries. Integrated with a flexible printed circuit board (FPCB), the system combines an energy management module (EMM), a low-power microcontroller unit (MCU), sensors, and a Bluetooth module, enabling health data collection, processing, and wireless transmission. The SFTEG, featuring a polyimide (PI) film and spring-like electrode structure, offers flexible, lightweight design and strong adaptability. It achieves an open-circuit voltage of 591 mV across a 2–16 °C temperature difference and outputs 1114 μW under optimal load conditions. The harvested energy is stored through the EMM to support intermittent monitoring of heart rate and blood oxygen saturation. By balancing low power consumption, user comfort, and adaptability to diverse scenarios, the proposed design demonstrates a promising pathway for the development of sustainable, self-powered wearable health monitoring devices.

本文提出了一种基于可伸缩柔性热电能量收集的间歇性自供电健康监测装置，以解决传统解决方案能源依赖性高、电池寿命有限和维护成本高的问题。该装置利用可伸缩的柔性热电发电机（SFTEG），将人体和环境之间的温差转化为电能，减少了对传统电池的依赖。该系统集成了柔性印刷电路板（FPCB），结合了能量管理模块（EMM）、低功耗微控制器单元（MCU）、传感器和蓝牙模块，实现了健康数据的收集、处理和无线传输。SFTEG采用聚酰亚胺（PI）薄膜和弹簧状电极结构，具有灵活，轻巧的设计和强大的适应性。它在2-16°C的温差下实现591 mV的开路电压，在最佳负载条件下输出1114 μW。收集的能量通过EMM存储，以支持心率和血氧饱和度的间歇性监测。通过平衡低功耗、用户舒适性和对多种场景的适应性，该设计为可持续、自供电的可穿戴健康监测设备的发展展示了一条有希望的途径。

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