Energy Lab Pub Date : 1900-01-01 DOI: 10.54227/elab.20220011

Chong Yan, Qiang Zhang

{"title":"Towards the Intercalation and Lithium Plating Mechanism for High Safety and Fast-Charging Lithium-ion Batteries: A Review","authors":"Chong Yan, Qiang Zhang","doi":"10.54227/elab.20220011","DOIUrl":"https://doi.org/10.54227/elab.20220011","url":null,"abstract":"The ever-increasing demand of portable electronics and electric vehicles has consistently promoted the development of lithium-ion batteries (LIBs) in the direction of higher energy density, higher safety, and faster charging. However, present high-energy LIBs are insufficient to sustain extra-fast power input without adverse consequences, which is mainly affected by the lithium (Li) plating on graphite electrode. The goal of this review is to enable graphite anode to support higher current and improve safety by ameliorating undesired Li plating from fundamentals and detections. Hence, the interaction, containing solid electrolyte interphase formation, Li+ intercalation/plating behavior, between graphite and Li+ be discussed in depth. Besides, the cognitive process of Li+ intercalation/plating kinetics as well as the inner mechanisms of Li plating especially in 3 extreme conditions (high state-of-charge, high charging-rate, and low temperature) are highly desirable to investigate Li plating comprehensively. Meanwhile, issues induced by Li plating, detection methods of Li deposition and knowledge gaps are identified for the follow-up research directions of Li plating in LIBs.","PeriodicalId":192033,"journal":{"name":"Energy Lab","volume":"407 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115993634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

2D Nb2O5@2D Metallic RuO2 Heterostructures as Highly Reversible Anode Materials for Lithium-ion Batteries 2D Nb2O5@2D金属RuO2异质结构作为锂离子电池高可逆负极材料

Energy Lab Pub Date : 1900-01-01 DOI: 10.54227/elab.20220007

Yan Yu

{"title":"2D Nb2O5@2D Metallic RuO2 Heterostructures as Highly Reversible Anode Materials for Lithium-ion Batteries","authors":"Yan Yu","doi":"10.54227/elab.20220007","DOIUrl":"https://doi.org/10.54227/elab.20220007","url":null,"abstract":"Constructing two-dimensional (2D) heterostructured materials by stacking different 2D materials could combine the merits of the individual building blocks while getting rid of the associated shortcomings. Orthorhombic Nb2O5(T-Nb2O5) is one of the greatly promising candidates for durable and safety anode for Li-ion batteries (LIBs), but it usually exhibits poor electrochemical performance due to the low electronic conductivity. Herein, we realize excellent lithium storage performance of T-Nb2O5 by designing 2D Nb2O5@2D metallic RuO2 heterostructures (Nb2O5@RuO2). The presence of 2D metallic RuO2 leads to enhanced electronic conductivity. The 2D Nb2O5@RuO2 heterostructures possess very short diffusion length of ions/electrons, easy penetration of liquid electrolyte, and high conductivity transport of electrons through the 2D metallic RuO2 to 2D Nb2O5. The Nb2O5@RuO2 delivers remarkable rate performance (133 mAh g-1 and 106 mAh g-1 at 50 C and 100 C) and excellent long-life capacity (97 mAh g-1 after 10000 cycles at 50 C). Moreover, Nb2O5@RuO2//LiFePO4 full batteries also display high rate capability of 140 mAh g-1 and 90 mAh g-1 at 20 C and 50 C, respectively. Theoretical calculation results show that the 2D Nb2O5@RuO2 heterostructures possess more large adsorption ability for Li+ than that of Nb2O5 , indicating an excellent lithium storage performance.","PeriodicalId":192033,"journal":{"name":"Energy Lab","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132404140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Perspective on Sulfur-Equivalent Cathode Materials for Lithium-Sulfur Batteries 锂硫电池硫当量正极材料研究进展

Energy Lab Pub Date : 1900-01-01 DOI: 10.54227/elab.20220003

Yang-Yang Li

引用次数: 2

Intermetallic PtTe metallene for formic acid oxidation assisted electrocatalytic nitrate reduction 金属间PtTe金属烯甲酸氧化辅助电催化硝酸还原

Energy Lab Pub Date : 1900-01-01 DOI: 10.54227/elab.20220022

Fumin Li, Yu Chen

{"title":"Intermetallic PtTe metallene for formic acid oxidation assisted electrocatalytic nitrate reduction","authors":"Fumin Li, Yu Chen","doi":"10.54227/elab.20220022","DOIUrl":"https://doi.org/10.54227/elab.20220022","url":null,"abstract":"Development of highly efficient electrocatalysts for selective electroreduction of nitrate is of great significance. In this work, the ultrathin intermetallic platinum-tellurium metallene (PtTe-ML) with atomic thickness is synthesized by simple liquid-phase chemical reduction. The introduction of Te atoms can sharply weaken the catalytic activity of Pt for the hydrogen evolution reaction. And, PtTe-ML exhibits superior catalytic activity for the nitrate reduction reaction (NO3−-ERR) than Pt black. In 0.5 M H2SO4 solution, PtTe-ML achieves an effective ammonia (NH3) production rate of 2.32 mg h−1 mgcat−1 and a Faradic efficiency of 95.5% at −0.04 V potential for NO3−-ERR. Meanwhile, the entry of Te atom isolates the continuous Pt active site and increases the proportion of the direct dehydrogenation pathway of the formic acid oxidation reaction (FAOR). Therefore, PtTe-ML also exhibits excellent FAOR activity due to the optimization of FAOR pathway. Then, anodic FAOR with low anodic oxidation potential is used to replace the oxygen evolution reaction with slow kinetic, so that the total electrolytic voltage of conventional electrochemical NH3 production can be effectively reduced. Consequently, the bifunctional PtTe-ML electrocatalyst requires only 0.4 V total voltage for FAOR assisted NH3 electroproduction. This work demonstrates a reaction coupling strategy to significantly improve the utilization rate of electric energy in electrochemical synthesis.","PeriodicalId":192033,"journal":{"name":"Energy Lab","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132828975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Strain Management in Perovskite Solar Cells 钙钛矿太阳能电池的应变管理

Energy Lab Pub Date : 1900-01-01 DOI: 10.54227/elab.20230004

Yuanyuan Zhao

引用次数: 0

Effective charge transfer regulation for robust photoelectrochemical water splitting 稳健光电化学水分解的有效电荷转移调控

Energy Lab Pub Date : 1900-01-01 DOI: 10.54227/elab.20220017

Jungang Hou

{"title":"Effective charge transfer regulation for robust photoelectrochemical water splitting","authors":"Jungang Hou","doi":"10.54227/elab.20220017","DOIUrl":"https://doi.org/10.54227/elab.20220017","url":null,"abstract":"The direct conversion of solar energy to chemical fuels is an important approach to address the world's challenges of sustainable energy, environmental and climate issues owing to the abundant solar energy. Photoectrochemical (PEC) cells as a promising technology by the utilization of solar energy have received much attention for the generation of renewable hydrogen from water splitting on a large scale. However, the efficiency of solar energy conversion into hydrogen is still limited by narrow light absorption, slow charge transfer and sluggish surface reaction kinetics. Great efforts in the regulation of charge transfer have been summarized toward efficient solar-to-chemical energy conversion in this review. Firstly, various photoanodes and photocathodes are been discussed. Then, different strategies such as morphological regulation, heteroatom and defect introduction, heterostructure engineering and cocatalyst incorporation are elaborated to accelerate the charge transfer process and optimize the PEC performance. Finally, the perspectives and comprehensive outlooks on the future regulation of charge transfer are also proposed. This review offers an overview for the rational design and development of the promising photoelectrodes and the delicate manipulation of photogenerated charge transfer in PEC systems for effective solar-to-chemical energy conversion.","PeriodicalId":192033,"journal":{"name":"Energy Lab","volume":"85 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120849387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Emerging presodiation strategies for long-life sodium-ion batteries 新出现的长寿命钠离子电池预沉淀策略

Energy Lab Pub Date : 1900-01-01 DOI: 10.54227/elab.20230008

Wei Chen

{"title":"Emerging presodiation strategies for long-life sodium-ion batteries","authors":"Wei Chen","doi":"10.54227/elab.20230008","DOIUrl":"https://doi.org/10.54227/elab.20230008","url":null,"abstract":"Sodium-ion batteries (SIBs) have attracted increasing attention as electrochemical energy storage in academic research and industrialization due to abundant reserves, low cost, and excellent power performance. Unfortunately, the commercial application is impeded by the low initial coulombic efficiency (ICE) and limited cycle life owing to largely irreversible loss of Na+, so the presodiation techniques have been crucial strategies to compensate capacity loss. For emerging technology, some reviews have summarized the presodiation methods according to mechanisms and their corresponding performance with specific applications in the past few years. However, there has rarely been sorted based on electrode materials systematically though the normal sequence is that electrode materials were selected first and then optimized for improved performance happened. Therefore, this review focus on the presodiation process and the performance from the perspective of electrode materials. In addition, the perspective of how to promote the further development of presodiation was described. We believe this review will provide a novel sight between electrode materials in SIBs and presodiation strategies and contribute to the rapid development and application of SIBs in the future.","PeriodicalId":192033,"journal":{"name":"Energy Lab","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121515966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Developments and Challenges of Catalytic Materials for Green Hydrogen Production 绿色制氢催化材料的发展与挑战

Energy Lab Pub Date : 1900-01-01 DOI: 10.54227/elab.20220013

Hui Chen, Xiaoxin Zou

{"title":"Developments and Challenges of Catalytic Materials for Green Hydrogen Production","authors":"Hui Chen, Xiaoxin Zou","doi":"10.54227/elab.20220013","DOIUrl":"https://doi.org/10.54227/elab.20220013","url":null,"abstract":"Water splitting coupled to renewable power systems is an attractive way to generate green hydrogen and achieve zero carbon emissions, and represents a strategic technology to meet the high demand of carbon-neutral development. Catalysts essentially determine the efficiency and cost of water splitting technologies, and are a class of key materials for green hydrogen production. In this review, we summarize the catalyst developments for the mainstream green hydrogen production technologies, including water electrolysis, water photolysis, and photoelectrocatalytic water splitting. We first present basic catalytic mechanisms of these water splitting pathways, as well as emphasize their current research status and challenges for practical application. We subsequently introduce the recent progress in representative catalysts and design strategies toward these photo(electro)catalytic technologies, paying particular attention to water electrolysis, including alkaline water electrolyzer (AWE), proton exchange membrane water electrolyzer (PEMWE), anion-exchange membrane water electrolyzer (AEMWE) and solid oxide electrolysis cell (SOEC). Finally, we propose future prospects to develop more desirable catalysts for green hydrogen production at a large scale.","PeriodicalId":192033,"journal":{"name":"Energy Lab","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128373678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Laboratory innovations for sustainable energy technologies and science 可持续能源技术和科学的实验室创新

Energy Lab Pub Date : 1900-01-01 DOI: 10.54227/elab.20220024

Gang Wu, Shaojun Guo

引用次数: 1

Electro-(Photo)catalysis for Concurrent Evolution of Hydrogen and High Value-Added Chemicals 氢和高附加值化学品同步演化的电(光)催化

Energy Lab Pub Date : 1900-01-01 DOI: 10.54227/elab.20220004

Shaojun Guo

{"title":"Electro-(Photo)catalysis for Concurrent Evolution of Hydrogen and High Value-Added Chemicals","authors":"Shaojun Guo","doi":"10.54227/elab.20220004","DOIUrl":"https://doi.org/10.54227/elab.20220004","url":null,"abstract":"Green hydrogen (H2) has been identified as a promising alternative to fossil fuel. Compared with traditional methods, such as steam methane reforming and coal gasification, electro-(photo)catalysis of water splitting provides a clean and sustainable way to produce green H2. However, electro-(photo)catalytic water splitting still suffers from sluggish kinetics and high-power consuming. Chemical-assisted electro-(photo)catalytic water splitting, with concurrent evolution of H2 and high value-added chemicals (HVACs), has recently drawn great attention. In such system, oxygen evolution process has been replaced by small organics or other chemicals with low oxidation reaction potential to reduce the energy gap. In this review, we will review recent important advances on how to design the electro-(photo)catalytic systems for concurrent evolution of H2 and HVACs. We first introduce the design principles and fundamentals of chemical-assisted electro-/photocatalytic water splitting. Then we focus on the different reaction types at anode for electro-(photo)catalysis, in which specific chemicals, especially small molecule, can be produced from biomass, alkyl alcohols and so on, with high efficiency and selectivity, coupled with promoted H2 generation. Finally, major challenges and perspectives relevant to the catalyst design, catalytic mechanisms and application of electro-(photo)catalytic concurrent evolution of H2 and HVACs will be provided.","PeriodicalId":192033,"journal":{"name":"Energy Lab","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117019978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Energy Lab最新文献