Energy & Environmental Science最新文献_第7页

Revolutionizing Wearable Sustainable Energy Enabled by Mechano-Electric Conversion Fibers

IF 32.5 1区材料科学

Energy & Environmental Science Pub Date : 2025-03-19 DOI: 10.1039/d5ee00144g

Jizhong Zhao, Xiaoxuan Fan, Hongxiang Xie, Yi Luo, Zhifeng Li, Xiao Peng, Guangming Tao, Zhong Lin Wang, Kai Dong

{"title":"Revolutionizing Wearable Sustainable Energy Enabled by Mechano-Electric Conversion Fibers","authors":"Jizhong Zhao, Xiaoxuan Fan, Hongxiang Xie, Yi Luo, Zhifeng Li, Xiao Peng, Guangming Tao, Zhong Lin Wang, Kai Dong","doi":"10.1039/d5ee00144g","DOIUrl":"https://doi.org/10.1039/d5ee00144g","url":null,"abstract":"Mechano-electric conversion fibers (MECFs) represent a groundbreaking innovation in smart textiles, integrating the high-efficiency mechanical energy conversion of triboelectric nanogenerators (TENGs) with superior wearability and comfort inherent in textile materials. Despite notable advancements in MECFs, comprehensive reviews and in-depth discussions of their fundamental principles and unique advantages remain scarce. Herein, this review aims to bridge this gap by providing a systematic analysis and objective outlook of MECFs, with a particular emphasis on their transformative potential in revolutionizing energy harvesting and self-powered sensing in human-centered applications. Driven by diverse structural designs, abundant material selection configurations, and high conversion efficiency at low frequencies, MECFs have developed a self-sufficient human surface energy supply-demand system that is autonomous, sustainable and undisturbed. Their high sensitivity is underpinned by a multilinear dynamic progressive response mechanism, facilitating rapid response times and high sensitivity across a wide spectrum of mechanical stimuli. In addition, the prominent applications of MECFs in self-powered wearable sensing are also explored, including personalized healthcare monitoring, human-machine interacting, and smart security protecting. Finally, we discuss in detail the key challenges and bottlenecks that still exist in MECF development, alongside promising solutions and future development directions. This work seeks to establish a comprehensive knowledge theoretical framework for MECFs and accelerate their transition from fundamental research to large-scale practical applications.","PeriodicalId":72,"journal":{"name":"Energy & Environmental Science","volume":"91 1","pages":""},"PeriodicalIF":32.5,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143654144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Surface-confined Growth of Ru Amorphous Sub-nanoclusters on Reductive Mn3O4: A Strongly Coupled Interface Engineering for Efficient Neutral Hydrogen Production

IF 32.5 1区材料科学

Energy & Environmental Science Pub Date : 2025-03-18 DOI: 10.1039/d4ee05759g

Li Wan, Haijun Wang, Biao Zeng, Wenwen Wang, Xinzheng Liu, Yubin Hu, Lixin Cao, Zhongyu Cui, Bohua Dong

{"title":"Surface-confined Growth of Ru Amorphous Sub-nanoclusters on Reductive Mn3O4: A Strongly Coupled Interface Engineering for Efficient Neutral Hydrogen Production","authors":"Li Wan, Haijun Wang, Biao Zeng, Wenwen Wang, Xinzheng Liu, Yubin Hu, Lixin Cao, Zhongyu Cui, Bohua Dong","doi":"10.1039/d4ee05759g","DOIUrl":"https://doi.org/10.1039/d4ee05759g","url":null,"abstract":"Electrochemical hydrogen evolution reaction (HER) under neutral condition is of great importance but remains challenging for achieving practical hydrogen production due to additional water dissociation and low proton supply rate. Herein, this work focuses on Ru amorphous sub-nanoclusters (Ru-ASNs), presenting an innovation that encompasses a surface-confined growth approach and a novel strongly coupled interface engineering strategy, wherein Ru-ASNs are grown on reductive Mn3O4 nanocrystals to form an interfacial catalyst (Ru-ASN/Mn3O4) for superior neutral HER. The strongly coupled effect induced by Ru-ASN on the heterostructure interface increases the proton supply rate by accelerating water dissociation at Mn sites as well as boost hydrogen migration at Ru sites, thus resulting in improved HER activity and stability under neutral conditions. The resulting electrocatalyst demonstrates low overpotentials of -8 mV at -10 mA cm-2 and -190 mV at -500 mA cm-2 only at low loading of 7 µgRu cm-2, a high mass activity of 8.78 A mgRu-1 at -70 mV, and maintains stability for over 600 hours at -250 mA cm-2, representing the highest mass activity of Ru-based electrocatalysts and longest durability under neutral conditions. This work demonstrates the superiority of amorphous sub-nanoclusters in constructing a strongly coupled interface for developing advanced catalysts.","PeriodicalId":72,"journal":{"name":"Energy & Environmental Science","volume":"91 1","pages":""},"PeriodicalIF":32.5,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143640285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Asymmetric RE-O-Ru unit with bridged oxygen vacancies accelerates deprotonation of acidic water oxidation

IF 32.5 1区材料科学

Energy & Environmental Science Pub Date : 2025-03-18 DOI: 10.1039/d5ee00281h

Caikang Wang, Xiangrui Wu, Hao Sun, Zhe Xu, Chang Xu, Xuan Wang, Meng Li, Yu Wang, Yawen Tang, Jianchun Jiang, Kang Sun, Gengtao Fu

{"title":"Asymmetric RE-O-Ru unit with bridged oxygen vacancies accelerates deprotonation of acidic water oxidation","authors":"Caikang Wang, Xiangrui Wu, Hao Sun, Zhe Xu, Chang Xu, Xuan Wang, Meng Li, Yu Wang, Yawen Tang, Jianchun Jiang, Kang Sun, Gengtao Fu","doi":"10.1039/d5ee00281h","DOIUrl":"https://doi.org/10.1039/d5ee00281h","url":null,"abstract":"Proton exchange membrane water electrolysis (PEMWE) is a promising technology for sustainable hydrogen production; however, the slow deprotonation of oxo-intermediates on RuO2 during the acidic oxygen evolution reaction (OER) limits its long-term stability. Herein, we propose an innovative and effective rare-earth (RE)-mediated strategy to accelerate the deprotonation of OER intermediates on RuO₂ matrix by constructing asymmetric RE-O-Ru structural unit. Taking Sm as a RE model, the incorporation of Sm into RuO2 induces the formation of asymmetric Sm-O-Ru unit with a unique f-p-d electron ladder and an adjacent bridged oxygen vacancy (Ov), which compensates for electron loss in Ru species and creates vacancy-localized electronic perturbation at the bridged Ov due to the delocalization of 4f electrons. The optimized Sm-RuO2-x-Ov catalyst requires an overpotential of only 217 mV at 10 mA cm-2 and operates steadily for over 300 h with a negligible degradation rate of ~27 μV h-1 in acid medium, outperforming Sm-free RuO2 and most other reported Ru-based catalysts. In situ characterization and theoretical analysis demonstrate the constructed asymmetric Sm-O-Ru unit prevents the over-oxidation of Ru species at high voltages and accelerates the *OH deprotonation at the surface oxygen vacancy during OER process, leading to high OER activity and stability. The potential role of asymmetric RE-O-Ru units with bridged Ov is also observed in other RE-doped RuO2 systems (e.g., Nd and Lu), where all catalysts exhibit enhanced deprotonation of oxygenated intermediates. We believe that the RE-mediated strategy presented in this work provides a new pathway for designing highly active and stable noble-metal-based catalysts for acidic water oxidation.","PeriodicalId":72,"journal":{"name":"Energy & Environmental Science","volume":"24 1","pages":""},"PeriodicalIF":32.5,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143640280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Emerging Strategies for the Large-scale Fabrication of Perovskite Solar Modules: From Design to Process

IF 32.5 1区材料科学

Energy & Environmental Science Pub Date : 2025-03-18 DOI: 10.1039/d4ee05613b

Bochun KANG, Feng Yan

{"title":"Emerging Strategies for the Large-scale Fabrication of Perovskite Solar Modules: From Design to Process","authors":"Bochun KANG, Feng Yan","doi":"10.1039/d4ee05613b","DOIUrl":"https://doi.org/10.1039/d4ee05613b","url":null,"abstract":"Perovskite solar cells (PSCs), recognized as a promising third-generation thin-film photovoltaic technology, offer notable advantages including low-cost production, high power conversion efficiency, and tunable bandgap characteristics. Despite these advancements, scaling up PSCs to large-area perovskite solar modules (PSMs) presents substantial challenges. To overcome the obstacles, alternative deposition methods such as solution-based blade coating, slot-die coating, spray coating, inkjet printing, and screen printing, as well as solvent-free methods like chemical vapor deposition and physical vapor deposition, are being explored to eliminate film inhomogeneity and defects when applied to a larger area. These emerging strategies aim to enhance film quality, uniformity, and scalability, which are essential for large-area applications. This comprehensive review systematically summarizes the manufacturing status of PSMs from fundamental theoretical principles to practical applications in processing, discussing various deposition techniques, and simultaneously exploring strategies to enhance PSM performance in terms of solvent, additive and interface engineering. Additionally, it delves into the stability challenges faced by large-scale manufacturing of commercial products, analyzing and summarizing the latest scribing processing and encapsulation technologies, and providing prospects for module development.","PeriodicalId":72,"journal":{"name":"Energy & Environmental Science","volume":"33 1","pages":""},"PeriodicalIF":32.5,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143640008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Regulation of the Cathode Inner Helmholtz Plane in Dilute Ether Electrolytes Using Electric-Field-Responsive Solvent for High-Voltage Lithium Metal Batteries

IF 32.5 1区材料科学

Energy & Environmental Science Pub Date : 2025-03-18 DOI: 10.1039/d4ee05818f

Junru Wu, Ziyao Gao, Zhiqiang Fu, Lili Lin, Xianshu Wang, Yun Zhao, Lele Peng, Feiyu Kang, Zhenyu Guo, Maria-Magdalena Titirici, Yunlong Zhao, Xiulin Fan, Baohua Li

{"title":"Regulation of the Cathode Inner Helmholtz Plane in Dilute Ether Electrolytes Using Electric-Field-Responsive Solvent for High-Voltage Lithium Metal Batteries","authors":"Junru Wu, Ziyao Gao, Zhiqiang Fu, Lili Lin, Xianshu Wang, Yun Zhao, Lele Peng, Feiyu Kang, Zhenyu Guo, Maria-Magdalena Titirici, Yunlong Zhao, Xiulin Fan, Baohua Li","doi":"10.1039/d4ee05818f","DOIUrl":"https://doi.org/10.1039/d4ee05818f","url":null,"abstract":"Raising the cut-off voltage to 4.6 V can boost the energy density of lithium metal batteries (LMBs) with LiCoO2 cathode. However, the unfavorable cathode electrolyte interphase (CEI) formed on high-voltage cathode when using Li metal-compatible ether electrolytes leads to short lifespan of batteries. Here we harness the battery intrinsic electric field to manipulate the cathode inner Helmholtz plane (IHP) during the battery’s charge through simply introducing an electric-field-responsive solvent into an ether electrolyte. Specifically, 2,2-difluoroethyl trifluoromethanesulfonate (DTS) as a weak solvated co-solvent preferentially adsorbs on the cathode surface under the electric field activation. Owing to the majority of “high-voltage fragile” 1,2-dimethoxyethane ether molecules squeezed out from the IHP by DTS, a LiF-rich and organics-less stable CEI film is formed, which minimizes cathode cracking and structure degradation under high-voltage. The DTS-containing electrolyte shows superior cycling stability of LMBs under harsh conditions of 4.6 V, 4.2 mAh cm-2 cathode loading and 15 μL lean electrolyte. Furthermore, the feasibility of this concept is validated in practical Ah-level pouch full cells. This work highlights the significance of the IHP modulation and interfacial chemistry, providing an alternative pathway towards ether-based electrolytes engineering for high-voltage LMBs.","PeriodicalId":72,"journal":{"name":"Energy & Environmental Science","volume":"33 1","pages":""},"PeriodicalIF":32.5,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143640286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Breaking the H2O dissociation-OH desorption scaling relationship in alkaline hydrogen evolution by oxophilic single atom M1-Run electrocatalyst

IF 32.5 1区材料科学

Energy & Environmental Science Pub Date : 2025-03-18 DOI: 10.1039/d5ee00152h

Xinhu Liang, Zhihao Zhang, Zhe Wang, mingzhen hu, Dan Cheng, Yue Jiang, Hao Ren, Fengyi Shen, Shitu Yang, Xiaoxin Yang, Wenkun Jiang, Xianghui Shi, Zihao Ma, Kebin Zhou

{"title":"Breaking the H2O dissociation-OH desorption scaling relationship in alkaline hydrogen evolution by oxophilic single atom M1-Run electrocatalyst","authors":"Xinhu Liang, Zhihao Zhang, Zhe Wang, mingzhen hu, Dan Cheng, Yue Jiang, Hao Ren, Fengyi Shen, Shitu Yang, Xiaoxin Yang, Wenkun Jiang, Xianghui Shi, Zihao Ma, Kebin Zhou","doi":"10.1039/d5ee00152h","DOIUrl":"https://doi.org/10.1039/d5ee00152h","url":null,"abstract":"Alkaline electrochemical hydrogen evolution reaction (HER) has been a hot topic in energy catalysis and engineering. Theoretically, intensifying OH adsorption on electrocatalyst is vital for promoting water dissociation and thus supplying sufficient proton to expedite alkaline hydrogen evolution. However, overbinding of OH largely impedes the recyclability of active centers and even causes catalyst deactivation. Herein, we report that H2O dissociation and OH desorption presents an undesirable scaling relationship, which poses a major stumbling block to attain maximized alkaline HER performance. While, dispersing highly oxophilic metal centers to single atoms greatly facilitates OH desorption and meanwhile keeps the high oxophilicity-enabled superb water dissociation merit, hence breaking the proportionality limitation. Based on this finding, a remarkable La1-Run catalyst is rationally synthesized, which operates durably at an ampere-level current density of 1000 mA cm-2 for over two months with an ultra-low cell voltage of 1.74 V, showing great promise for practical applications.","PeriodicalId":72,"journal":{"name":"Energy & Environmental Science","volume":"16 1","pages":""},"PeriodicalIF":32.5,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143640022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multifunctional composite magnet realizing record-high transverse thermoelectric generation

IF 32.5 1区材料科学

Energy & Environmental Science Pub Date : 2025-03-18 DOI: 10.1039/d4ee04845h

Fuyuki Ando, Takamasa Hirai, Abdulkareem Alasli, Hossein Sepehri-Amin, Yutaka Iwasaki, Hosei Nagano, Ken-ichi Uchida

{"title":"Multifunctional composite magnet realizing record-high transverse thermoelectric generation","authors":"Fuyuki Ando, Takamasa Hirai, Abdulkareem Alasli, Hossein Sepehri-Amin, Yutaka Iwasaki, Hosei Nagano, Ken-ichi Uchida","doi":"10.1039/d4ee04845h","DOIUrl":"https://doi.org/10.1039/d4ee04845h","url":null,"abstract":"Permanent magnets are used in various products and essential for human society. If omnipresent permanent magnets could directly convert heat into electricity, they would lead to innovative energy harvesting and thermal management technologies. However, achieving such “multifunctionality” has been difficult due to poor thermoelectric performance of conventional magnets. In this work, we develop a multifunctional composite magnet (MCM) that enables giant transverse thermoelectric conversion while possessing permanent magnet features. MCM comprising alternately and obliquely stacked SmCo5/Bi0.2Sb1.8Te3 multilayers exhibits an excellent transverse thermoelectric figure of merit zxyT of 0.20 at room temperature owing to the optimized anisotropic structure and extremely low interfacial electrical and thermal resistivities between the SmCo5 and Bi0.2Sb1.8Te3 layers. The MCM-based thermopile module generates a maximum of 204 mW at a temperature difference of 152 K, whose power density normalized by the heat transfer area and temperature gradient is not only record-high among transverse thermoelectric modules but also comparable to those of commercial thermoelectric modules utilizing the Seebeck effect. The multifunctionality of our MCM provides unprecedented opportunities for energy harvesting and thermal management everywhere permanent magnets are currently used.","PeriodicalId":72,"journal":{"name":"Energy & Environmental Science","volume":"34 1","pages":""},"PeriodicalIF":32.5,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143640281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mesoscale polymer regulation for fast-charging solid-state lithium metal batteries

IF 32.5 1区材料科学

Energy & Environmental Science Pub Date : 2025-03-18 DOI: 10.1039/d5ee00203f

Yuetao Ma, Likun Chen, Yuhang Li, Boyu Li, Xufei An, Xing Cheng, Hai Su, Ke Yang, Guanyou Xiao, Yang Zhao, Zhuo Han, Shaoke Guo, Jinshuo Mi, Peiran Shi, Ming Liu, Yan-Bing He, Feiyu Kang

{"title":"Mesoscale polymer regulation for fast-charging solid-state lithium metal batteries","authors":"Yuetao Ma, Likun Chen, Yuhang Li, Boyu Li, Xufei An, Xing Cheng, Hai Su, Ke Yang, Guanyou Xiao, Yang Zhao, Zhuo Han, Shaoke Guo, Jinshuo Mi, Peiran Shi, Ming Liu, Yan-Bing He, Feiyu Kang","doi":"10.1039/d5ee00203f","DOIUrl":"https://doi.org/10.1039/d5ee00203f","url":null,"abstract":"Developing solid-state polymer electrolytes with both high voltage and ionic conductivity is essential for practical solid-state batteries. Poly(vinylidene fluoride) (PVDF)-based solid-state electrolytes are attractive for solid-state lithium metal batteries (LMBs). However, their high mesoscale heterogeneity induced by phase separation during electrolyte preparation leads to the formation of large PVDF spherulites. Herein, we demonstrate that the mesoscale heterogeneity causes the accumulation of Li+ on the surfaces of oversized PVDF spherulites. The large spherulites with low interface-bulk ratios greatly impede the efficient long-range Li+ conduction within the electrolyte. We propose an efficient strategy to regulate the geometric structure of PVDF spherulites by introducing the polyvinyl alcohol (PVA) coated dielectric SrTiO3 (PVA@STO) as a nucleating agent in a PVDF-based electrolyte. The excellent interfacial compatibility of the PVA coating layer with PVDF facilitates the uniform dispersion of PVA@STO nano-fillers and regulates the nucleation to form abundant finer PVDF spherulites with more interfaces, thereby providing abundant Li+ transport pathways. Furthermore, the well-dispersed PVA@STO nano-fillers can effectively dissociate lithium salt to generate more mobile Li+ in the PVDF–PVA@STO electrolyte that exhibits a high ionic conductivity of 8.6 × 10−4 S cm−1. The Li|PVDF–PVA@STO|NCM811 batteries demonstrate excellent high rate cycling performance, retaining 80.8% and 70.5% capacity after 2000 cycles at 5C and 10C, respectively. This work clearly demonstrates the significant effect of mesoscale structure regulation on a polymer structure for high-performance fast-charging solid-state lithium metal batteries.","PeriodicalId":72,"journal":{"name":"Energy & Environmental Science","volume":"54 1","pages":""},"PeriodicalIF":32.5,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143640282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stress Release via Thermodynamic Regulation towards Efficient Flexible Perovskite Solar Cells

IF 32.5 1区材料科学

Energy & Environmental Science Pub Date : 2025-03-18 DOI: 10.1039/d5ee00342c

Zhiyang Xu, Runnan Yu, Tangyue Xue, Qiang Guo, Qianglong Lv, Chen Zhang, Erjun Zhou, Zhan'ao Tan

引用次数: 0

405 Wh kg-1 Ah-level Lithium-Sulfur Pouch Battery Stabilized over 200 Cycles by Electron-Triode-like GeS2-NiS2 Heterostructure

IF 32.5 1区材料科学

Energy & Environmental Science Pub Date : 2025-03-18 DOI: 10.1039/d5ee00615e

Xun Jiao, Li Tan, Xiaoxia Tang, Cheng Tong, Tao Wang, Minhua Shao, Bin Liu, Cunpu Li, Zidong Wei

{"title":"405 Wh kg-1 Ah-level Lithium-Sulfur Pouch Battery Stabilized over 200 Cycles by Electron-Triode-like GeS2-NiS2 Heterostructure","authors":"Xun Jiao, Li Tan, Xiaoxia Tang, Cheng Tong, Tao Wang, Minhua Shao, Bin Liu, Cunpu Li, Zidong Wei","doi":"10.1039/d5ee00615e","DOIUrl":"https://doi.org/10.1039/d5ee00615e","url":null,"abstract":"Lithium-sulfur batteries (LSBs) form soluble polysulfides (LiPSs) during discharge, leading to decline of cycling performance, especially the failure of pouch batteries. The failure may be since conventional sulfur hosts can only adsorb LiPSs and cannot rapidly inject and transfer electrons in electrochemical reactions. The sluggish electrochemical interconversion of LiPSs makes the continues loss of the active materials, which is a barrier to long-life commercial LSBs. Herein, an electron-triode-like GeS2-NiS2 heterostructure is successfully designed to serve as a sulfur host. An Ohmic contact rather than a Schottky contact is formed between GeS2 and NiS2, which is proven by the ultraviolet photoelectron spectra and X-ray absorption fine structure spectra. Therefore, the LiPSs can be interconverted with an electron-triode-like model: NiS2 acts as the emitter and injects a bunching of electrons into the LiPSs (the collector) through the GeS2 base electrode, with a maximum reaction current amplification factor (βR) of 105.87. In-situ XRD and ex-situ AFM indicate that the bunching injection of electrons can achieve an advanced deposition of Li2S as early as ~80% SOC. Ultimately, the S@GeS2-NiS2/rGO battery achieves a high specific capacity of 1007.8 mAh g-1 at 0.5 C. The 1.2 Ah pouch battery can achieve a high energy density of 405 Wh kg-1 and work stably for 200 cycles, highlighting its great potential for practical applications.","PeriodicalId":72,"journal":{"name":"Energy & Environmental Science","volume":"55 1","pages":""},"PeriodicalIF":32.5,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143640283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0