Nature Energy最新文献_第10页

A cathode homogenization strategy for enabling long-cycle-life all-solid-state lithium batteries 实现长循环寿命全固态锂电池的正极均匀化战略

IF 49.7 1区材料科学

Nature Energy Pub Date : 2024-07-31 DOI: 10.1038/s41560-024-01596-6

Longfei Cui, Shu Zhang, Jiangwei Ju, Tao Liu, Yue Zheng, Jiahao Xu, Yantao Wang, Jiedong Li, Jingwen Zhao, Jun Ma, Jinzhi Wang, Gaojie Xu, Ting-Shan Chan, Yu-Cheng Huang, Shu-Chih Haw, Jin-Ming Chen, Zhiwei Hu, Guanglei Cui

{"title":"A cathode homogenization strategy for enabling long-cycle-life all-solid-state lithium batteries","authors":"Longfei Cui, Shu Zhang, Jiangwei Ju, Tao Liu, Yue Zheng, Jiahao Xu, Yantao Wang, Jiedong Li, Jingwen Zhao, Jun Ma, Jinzhi Wang, Gaojie Xu, Ting-Shan Chan, Yu-Cheng Huang, Shu-Chih Haw, Jin-Ming Chen, Zhiwei Hu, Guanglei Cui","doi":"10.1038/s41560-024-01596-6","DOIUrl":"10.1038/s41560-024-01596-6","url":null,"abstract":"All-solid-state lithium batteries typically employ heterogeneous composite cathodes where conductive additives are introduced to improve mixed conduction. These electrochemically inactive additives are not fully compatible with layered oxide cathodes that undergo large volume change, significantly reducing battery energy density and cycle life. Here we propose a cathode homogenization strategy by cold pressing a zero-strain cathode material with efficient mixed conduction throughout the (dis)charge process. Li1.75Ti2(Ge0.25P0.75S3.8Se0.2)3 possesses considerable Li+/electronic conductivity of 0.22/242 mS cm−1 when fully charged, increasing monotonically to 0.66/412 mS cm−1 when fully discharged. It delivers a specific capacity of 250 mAh g−1 and undergoes a 1.2% volume change. Homogeneous cathodes composed of 100% Li1.75Ti2(Ge0.25P0.75S3.8Se0.2)3 enable room-temperature all-solid-state lithium batteries to achieve a cycle life of over 20,000 cycles at 2.5 C with a specific capacity retention of 70% and a high energy density of 390 Wh kg−1 at the cell level at 0.1 C. This cathode homogenization strategy contrasts to the conventional cathode heterogeneous design, potentially improving the viability of all-solid-state lithium batteries for commercial applications. Solid-state lithium batteries typically utilize heterogeneous composite cathodes with conductive additives, which limit energy density and cycle life. Here the authors present a cathode material that exhibits efficient mixed conduction and near-zero volume change during cycling, thereby improving battery performance.","PeriodicalId":19073,"journal":{"name":"Nature Energy","volume":"9 9","pages":"1084-1094"},"PeriodicalIF":49.7,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141857697","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

Simulations for building integration 建筑一体化模拟

IF 49.7 1区材料科学

Nature Energy Pub Date : 2024-07-25 DOI: 10.1038/s41560-024-01592-w

Giulia Tregnago

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Self-cleaning solar evaporation 自清洁太阳能蒸发

IF 49.7 1区材料科学

Nature Energy Pub Date : 2024-07-25 DOI: 10.1038/s41560-024-01594-8

Changjun (Alex) Zhang

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Improving lifetime through leaching 通过沥滤提高使用寿命

IF 49.7 1区材料科学

Nature Energy Pub Date : 2024-07-25 DOI: 10.1038/s41560-024-01593-9

James Gallagher

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Data as a resource 数据是一种资源

IF 49.7 1区材料科学

Nature Energy Pub Date : 2024-07-25 DOI: 10.1038/s41560-024-01598-4

引用次数: 0

Bipolar membranes for intrinsically stable and scalable CO2 electrolysis 用于本质稳定和可扩展二氧化碳电解的双极膜

IF 49.7 1区材料科学

Nature Energy Pub Date : 2024-07-24 DOI: 10.1038/s41560-024-01574-y

Kostadin V. Petrov, Christel I. Koopman, Siddhartha Subramanian, Marc T. M. Koper, Thomas Burdyny, David A. Vermaas

{"title":"Bipolar membranes for intrinsically stable and scalable CO2 electrolysis","authors":"Kostadin V. Petrov, Christel I. Koopman, Siddhartha Subramanian, Marc T. M. Koper, Thomas Burdyny, David A. Vermaas","doi":"10.1038/s41560-024-01574-y","DOIUrl":"10.1038/s41560-024-01574-y","url":null,"abstract":"CO2 electrolysis allows the sustainable production of carbon-based fuels and chemicals. However, state-of-the-art CO2 electrolysers employing anion exchange membranes (AEMs) suffer from (bi)carbonate crossover, causing low CO2 utilization and limiting anode choices to those based on precious metals. Here we argue that bipolar membranes (BPMs) could become the primary option for intrinsically stable and efficient CO2 electrolysis without the use of scarce metals. Although both reverse- and forward-bias BPMs can inhibit CO2 crossover, forward-bias BPMs fail to solve the rare-earth metals requirement at the anode. Unfortunately, reverse-bias BPM systems presently exhibit comparatively lower Faradaic efficiencies and higher cell voltages than AEM-based systems. We argue that these performance challenges can be overcome by focusing research on optimizing the catalyst, reaction microenvironment and alkali cation availability. Furthermore, BPMs can be improved by using thinner layers and a suitable water dissociation catalyst, thus alleviating core remaining challenges in CO2 electrolysis to bring this technology to the industrial scale. The membrane separating anode from cathode in CO2 electrolysers plays a key role in determining the performance, stability and material selection of the device. Here the authors argue that bipolar membranes could become the primary choice for scarce-metal-free, stable and efficient CO2 electrolysers.","PeriodicalId":19073,"journal":{"name":"Nature Energy","volume":"9 8","pages":"932-938"},"PeriodicalIF":49.7,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141764185","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

Impact of three-dimensional leg geometry on thermoelectric power generation 三维支腿几何形状对热发电的影响

IF 49.7 1区材料科学

Nature Energy Pub Date : 2024-07-24 DOI: 10.1038/s41560-024-01590-y

引用次数: 0

Author Correction: Elimination of grain surface concavities for improved perovskite thin-film interfaces 作者更正：消除晶粒表面凹陷，改善过氧化物薄膜界面

IF 49.7 1区材料科学

Nature Energy Pub Date : 2024-07-22 DOI: 10.1038/s41560-024-01611-w

Tong Xiao, Mingwei Hao, Tianwei Duan, Yanyan Li, Yalan Zhang, Peijun Guo, Yuanyuan Zhou

引用次数: 0

Separation and concentration of CO2 from air using a humidity-driven molten-carbonate membrane 利用湿度驱动的熔融碳酸盐膜从空气中分离和浓缩二氧化碳

IF 49.7 1区材料科学

Nature Energy Pub Date : 2024-07-19 DOI: 10.1038/s41560-024-01588-6

Ian S. Metcalfe, Greg A. Mutch, Evangelos I. Papaioannou, Sotiria Tsochataridou, Dragos Neagu, Dan J. L. Brett, Francesco Iacoviello, Thomas S. Miller, Paul R. Shearing, Patricia A. Hunt

{"title":"Separation and concentration of CO2 from air using a humidity-driven molten-carbonate membrane","authors":"Ian S. Metcalfe, Greg A. Mutch, Evangelos I. Papaioannou, Sotiria Tsochataridou, Dragos Neagu, Dan J. L. Brett, Francesco Iacoviello, Thomas S. Miller, Paul R. Shearing, Patricia A. Hunt","doi":"10.1038/s41560-024-01588-6","DOIUrl":"10.1038/s41560-024-01588-6","url":null,"abstract":"Separation processes are substantially more difficult when the species to be separated is highly dilute. To perform any dilute separation, thermodynamic and kinetic limitations must be overcome. Here we report a molten-carbonate membrane that can ‘pump’ CO2 from a 400 ppm input stream (representative of air) to an output stream with a higher concentration of CO2, by exploiting ambient energy in the form of a humidity difference. The substantial H2O concentration difference across the membrane drives CO2 permeation ‘uphill’ against its own concentration difference, analogous to active transport in biological membranes. The introduction of this H2O concentration difference also results in a kinetic enhancement that boosts the CO2 flux by an order of magnitude even as the CO2 input stream concentration is decreased by three orders of magnitude from 50% to 400 ppm. Computational modelling shows that this enhancement is due to the H2O-mediated formation of carriers within the molten salt that facilitate rapid CO2 transport. Capture of CO2 from the air requires substantial amounts of energy. Here the authors report molten-carbonate membranes to concentrate CO2 from 400 ppm input streams that exploit ambient energy in the form of humidity differences.","PeriodicalId":19073,"journal":{"name":"Nature Energy","volume":"9 9","pages":"1074-1083"},"PeriodicalIF":49.7,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41560-024-01588-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141725933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Geometric design of Cu2Se-based thermoelectric materials for enhancing power generation 用于提高发电量的 Cu2Se 基热电材料的几何设计

IF 49.7 1区材料科学

Nature Energy Pub Date : 2024-07-19 DOI: 10.1038/s41560-024-01589-5

Seungjun Choo, Jungsoo Lee, Bengisu Şişik, Sung-Jin Jung, Keonkuk Kim, Seong Eun Yang, Seungki Jo, Changhyeon Nam, Sangjoon Ahn, Ho Seong Lee, Han Gi Chae, Seong Keun Kim, Saniya LeBlanc, Jae Sung Son

{"title":"Geometric design of Cu2Se-based thermoelectric materials for enhancing power generation","authors":"Seungjun Choo, Jungsoo Lee, Bengisu Şişik, Sung-Jin Jung, Keonkuk Kim, Seong Eun Yang, Seungki Jo, Changhyeon Nam, Sangjoon Ahn, Ho Seong Lee, Han Gi Chae, Seong Keun Kim, Saniya LeBlanc, Jae Sung Son","doi":"10.1038/s41560-024-01589-5","DOIUrl":"10.1038/s41560-024-01589-5","url":null,"abstract":"Waste heat, an abundant energy source generated by both industries and nature, has the potential to be harnessed into electricity via thermoelectric power generation. The performance of thermoelectric modules, typically composed of cuboid-shaped materials, depends on both the materials’ intrinsic properties and the temperature difference created. Despite significant advancements in the development of efficient materials, macroscopic thermal designs capable of accommodating larger temperature differences have been largely underexplored because of the challenges associated with processing bulk thermoelectric materials. Here we present the design strategy for Cu2Se thermoelectric materials for high-temperature power generation using a combination of finite element modelling and 3D printing. The macroscopic geometries and microscopic defects in Cu2Se materials are precisely engineered by optimizing the 3D printing and post-treatment processes, leading to notable enhancements in the material efficiency and temperature difference across legs, where the hourglass geometry exhibits maximized output powers and efficiencies. The proposed approach paves the way for designing efficient thermoelectric power generators. Choo, Lee et al. computationally and experimentally investigate how the thermal resistance and surface cooling of thermoelectric legs with different geometries impact the power output of Cu2Se thermoelectric materials.","PeriodicalId":19073,"journal":{"name":"Nature Energy","volume":"9 9","pages":"1105-1116"},"PeriodicalIF":49.7,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141725932","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