Energy Storage Materials最新文献_第4页

Machine-learning-assisted design of cathode catalysts for metal-sulfur/oxygen/carbon dioxide batteries 金属-硫/氧/二氧化碳电池阴极催化剂的机器学习辅助设计

IF 18.9 1区材料科学

Energy Storage Materials Pub Date : 2025-04-15 DOI: 10.1016/j.ensm.2025.104261

Qi Zhang, Rui Yang, Zhengran Wang, Yifan Li, Fangbing Dong, Junjie Liu, Shenglin Xiong , Aimin Zhang, Jinkui Feng

{"title":"Machine-learning-assisted design of cathode catalysts for metal-sulfur/oxygen/carbon dioxide batteries","authors":"Qi Zhang, Rui Yang, Zhengran Wang, Yifan Li, Fangbing Dong, Junjie Liu, Shenglin Xiong , Aimin Zhang, Jinkui Feng","doi":"10.1016/j.ensm.2025.104261","DOIUrl":"10.1016/j.ensm.2025.104261","url":null,"abstract":"<div><div>Metal-sulfur/oxygen/carbon dioxide batteries, which are promising high-energy power systems, all suffer from the drawback of slow reaction kinetics in cathode reactions, resulting in suboptimal battery performance. Cathode catalysts can effectively accelerate reaction kinetics, thereby enhancing battery performance. However, challenges remain in catalyst screening, and there is an unclear understanding of catalytic mechanisms. Machine learning offers a rapid approach to screening efficient catalysts and deeply exploring the mechanism of catalysis, making it a promising tool for advancing catalyst development. Nowadays, comprehensive reviews on the role of machine learning in aiding the development of cathode catalysts for metal-sulfur/oxygen/carbon dioxide batteries are rare. This review systematically summarizes the application of machine learning in cathode catalysts and presents some perspectives for future research. This review may be useful for developing Metal-sulfur/oxygen/carbon dioxide batteries and related areas.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"78 ","pages":"Article 104261"},"PeriodicalIF":18.9,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143837052","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

Strategic cathode configuration for incorporating sacrificial materials in all-solid-state batteries: Mixed vs. separate layer 在全固态电池中加入牺牲材料的战略性阴极配置：混合层与分离层

IF 18.9 1区材料科学

Energy Storage Materials Pub Date : 2025-04-15 DOI: 10.1016/j.ensm.2025.104258

Dayoung Jun , Kyu Seok Kim , Tae Eun Kim , Seihyun Shim , Seong Gyu Lee , Ji Eun Jung , Ji Young Kim , Ki Yoon Bae , Samick Son , Yun Jung Lee

{"title":"Strategic cathode configuration for incorporating sacrificial materials in all-solid-state batteries: Mixed vs. separate layer","authors":"Dayoung Jun , Kyu Seok Kim , Tae Eun Kim , Seihyun Shim , Seong Gyu Lee , Ji Eun Jung , Ji Young Kim , Ki Yoon Bae , Samick Son , Yun Jung Lee","doi":"10.1016/j.ensm.2025.104258","DOIUrl":"10.1016/j.ensm.2025.104258","url":null,"abstract":"<div><div>Cathode pre-lithiation is one of the key strategies to mitigate the high irreversibility in all-solid-state batteries (ASSBs). However, the decomposition of sacrificial material mixed with cathode active materials (CAM) creates voids and resistive by-products in the CAM layer, degrading performance. Here, we propose a strategy for reconfiguring a composite cathode structure with a Li<sub>3</sub>P sacrificial material to maximize the pre-lithiation effect. Our approach was to apply Li<sub>3</sub>P as a separate layer rather than mix it into CAMs, so that the CAMs are free from damage. The location of the sacrificial layer between the current collector and the CAM layer was critically important for efficient Li ion and electron transport to the CAM. The proposed configuration achieved a significantly enhanced pre-lithiation effect, resulting in effective compensation for the high irreversibility in ASSBs. The full cells with Si and Ag anodes that include a Li<sub>3</sub>P-layer demonstrated a 124 % (Si anode) and 261 % (5 μm Ag foil anode) increase in initial discharge capacity compared to cells without Li₃P. This study provides a simple solution for implementing high-energy-density but highly irreversible anodes in ASSBs.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"78 ","pages":"Article 104258"},"PeriodicalIF":18.9,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143832477","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

Scalable shell doping strategy for enhancing the stability of Ni-rich cathode materials 提高富镍正极材料稳定性的可扩展壳掺杂策略

IF 18.9 1区材料科学

Energy Storage Materials Pub Date : 2025-04-14 DOI: 10.1016/j.ensm.2025.104252

Myoung-Chan Kim , Byung-Chun Park , Nam-Yung Park , Min-su Kim , Kyu-Moon Kim , Jae-Ho Kim , Eun-Jung Kim , Geon-Tae Park , Yang-Kook Sun

{"title":"Scalable shell doping strategy for enhancing the stability of Ni-rich cathode materials","authors":"Myoung-Chan Kim , Byung-Chun Park , Nam-Yung Park , Min-su Kim , Kyu-Moon Kim , Jae-Ho Kim , Eun-Jung Kim , Geon-Tae Park , Yang-Kook Sun","doi":"10.1016/j.ensm.2025.104252","DOIUrl":"10.1016/j.ensm.2025.104252","url":null,"abstract":"<div><div>To improve the stability of Ni-rich Li[Ni<sub>0.90</sub>Co<sub>0.05</sub>Mn<sub>0.05</sub>]O<sub>2</sub> (NCM90) cathodes, doping has proven to be an effective method for enhancing the performance of cathode materials. Nevertheless, the dry-doping process, which involves the mixing of the cathode precursor with lithium sources and dopants, is constrained by limitations in scalability and efficacy. This study introduces a wet-doping approach that focuses on the shell region (shell doping) with the objective of maximizing the doping effect and offering benefits in scaling up the cathode material production process in terms of commercialization. The W-shell doped NCM90 cathodes, prepared by doping W in the shell region of the secondary particle during the co-precipitation synthesis process of the [Ni<sub>0.90</sub>Co<sub>0.05</sub>Mn<sub>0.05</sub>](OH)<sub>2</sub> precursor, exhibit the formation of fine primary particles that are not observed in conventional NCM90 cathodes. Additionally, it forms a LiM<sub>2</sub>O<sub>4</sub>-type spinel-like crystal structure on the particle surface, contributing to improved cycling stability and rate capability. Furthermore, the shell doping method, which facilitates the uniform distribution of dopants throughout the co-precipitation synthesis process, was capable of maintaining the homogeneity of the doping effect even in large-scale cathode material synthesis processes. These findings extend beyond the discovery of a new doping method for enhancing cathode performance, offering a practical approach that can be applied to large-scale production processes from a commercialization perspective.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"78 ","pages":"Article 104252"},"PeriodicalIF":18.9,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143832479","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

Electrostatic self-assembled polymer film empowers the interfacial structure and chemistry of Zn anode for enhanced stability 静电自组装聚合物薄膜赋予锌阳极界面结构和化学性质以增强稳定性

IF 18.9 1区材料科学

Energy Storage Materials Pub Date : 2025-04-14 DOI: 10.1016/j.ensm.2025.104260

Xingwang Zhao , Xiaochen Liu , Bo Shang , Mingzhou Yang , Yi Xie , Lingjie Li , Nianbing Li , Jinglei Lei

{"title":"Electrostatic self-assembled polymer film empowers the interfacial structure and chemistry of Zn anode for enhanced stability","authors":"Xingwang Zhao , Xiaochen Liu , Bo Shang , Mingzhou Yang , Yi Xie , Lingjie Li , Nianbing Li , Jinglei Lei","doi":"10.1016/j.ensm.2025.104260","DOIUrl":"10.1016/j.ensm.2025.104260","url":null,"abstract":"<div><div>The instability of Zn anode caused by interfacial issues arising from parasitic reactions and dendrite growth remains a bottleneck for developing rechargeable aqueous zinc metal battery (RAZMB). Herein, an electrostatic self-assembled DS polymer film using poly(diallyldimethylammonium) (PDD<sup>+</sup>) and poly(sodium 4-styrenesulfonate) (PSS<sup>−</sup>) as units is designed to stabilize Zn anode by modulating the interfacial structure and chemistry. PDD<sup>+</sup> polycations chemically bond directly to Zn anode and then electrostatically interact with PSS<sup>−</sup> polyanions rich in sulfonate groups. The DS polymer film not only blocks direct contact between Zn and H<sub>2</sub>O but also flattens the anode surface potential, which effectively inhibits parasitic reactions and improves the diffusion behavior and deposition kinetics of Zn<sup>2+</sup> ions to achieve uniform Zn deposition. Moreover, the as-formed “externally elastic and internally rigid” interface endows DS-Zn anode with excellent cycling stability and reversibility. Consequently, the symmetric cell assembled with DS-Zn delivers an ultralong cycling stability of 3000 h. DS-Zn||Cu cell achieves a high CE of 99.7 % over 1600 cycles, outperforming most reported work. Meanwhile, the electrochemical performance of DS-Zn||VO<sub>2</sub> battery is markedly improved. The approach of designing and fabricating DS polymer film to modulate interfacial structure and chemistry for stabilizing Zn anode may boost the practical implementation of RAZMBs.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"78 ","pages":"Article 104260"},"PeriodicalIF":18.9,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143832470","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

High energy density MIM-type aluminum electrolytic capacitors based on sintered aluminum powder anodes 基于烧结铝粉阳极的高能量密度mim型铝电解电容器

IF 18.9 1区材料科学

Energy Storage Materials Pub Date : 2025-04-14 DOI: 10.1016/j.ensm.2025.104257

Yuan Guo , Shixin Wang , Xianfeng Du , Xinkuan Zang , Zhongshuai Liang , Jun Xiong , Zhuo Li , Ruizhi Wang , Xiaotao Sun

{"title":"High energy density MIM-type aluminum electrolytic capacitors based on sintered aluminum powder anodes","authors":"Yuan Guo , Shixin Wang , Xianfeng Du , Xinkuan Zang , Zhongshuai Liang , Jun Xiong , Zhuo Li , Ruizhi Wang , Xiaotao Sun","doi":"10.1016/j.ensm.2025.104257","DOIUrl":"10.1016/j.ensm.2025.104257","url":null,"abstract":"<div><div>Building high-energy density metal-insulator-metal type aluminum electrolytic capacitors (MIM-AECs) will open up new chapters for high-energy pulsed applications. Here, a high-energy density MIM-AECs were fabricated based on additively manufactured aluminum powder (Al-P) anodes. Due to the larger specific surface area of Al-P, the capacity density is increased by 11 % compared to conventional etched Al anodes. Meanwhile, a SnO<sub>2</sub>/AlPO<sub>4</sub>/AAO interface increases the Sn diffusion barrier and inhibits its diffusion into AAO, ensuring a high breakdown field strength (5.4 MV/cm). Moreover, the interface reduces carrier mobility and mitigates carrier acceleration, preventing local breakdown in device. Consequently, an exciting voltage (380 V) far exceeding that of conventional solid-state AECs capacitors is obtained, while an energy density (11.6 µWh/cm<sup>2</sup>) is ten times higher than that of reported MIM nanocapacitors. Strikingly, the capacitors exhibit a wide temperature window (-60 °C∼332 °C), strong humidity resistance (100 % RH) and high frequency response (300 kHz), far superior to commercial AECs.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"78 ","pages":"Article 104257"},"PeriodicalIF":18.9,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143832472","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

Innovative zwitterionic polymers in advanced batteries 先进电池中的创新型齐聚物

IF 18.9 1区材料科学

Energy Storage Materials Pub Date : 2025-04-14 DOI: 10.1016/j.ensm.2025.104253

Bin Guo , Jingmiao Jia , Yanwei Zhao , Junlong Zhang , Guojie Li , Kai Chen , Aoxuan Wang , Chuntai Liu

{"title":"Innovative zwitterionic polymers in advanced batteries","authors":"Bin Guo , Jingmiao Jia , Yanwei Zhao , Junlong Zhang , Guojie Li , Kai Chen , Aoxuan Wang , Chuntai Liu","doi":"10.1016/j.ensm.2025.104253","DOIUrl":"10.1016/j.ensm.2025.104253","url":null,"abstract":"<div><div>As the global energy demand has increased, research into energy storage technologies has become crucial. However, current battery development methods face significant challenges in terms of energy density, ionic conductivity, dendrite growth, and safety, limiting their widespread practical use. Zwitterionic polymers have attracted considerable attention because of their unique molecular structure, where the coexistence of charged functional groups endows the polymer with high polarity and superior hydrophilicity, which are vital for its electrochemical properties. Additionally, the electrical properties of these polymers can be further tailored, making it possible to engineer zwitterionic polymers to address the challenges hindering battery systems, which has been a growing research focus. This paper first explains the composition, classification, properties, and synthesis methods of zwitterionic polymers and then focuses on their roles in the batteries, functionalities and structural design strategies. Furthermore, we have encapsulated the advantages of zwitterionic polymers in battery applications and explored their prospective advancement trajectory, aiming to provide insight for the corresponding sectors of investigation.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"78 ","pages":"Article 104253"},"PeriodicalIF":18.9,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143832480","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

Scalable Production of Ultrathin Li-Sn-In Alloy Foil with Interpenetrated Skeleton for High-Energy-Density Lithium Metal Batteries 为高能量密度金属锂电池规模化生产具有互穿骨架的超薄锂锰合金箔片

IF 20.4 1区材料科学

Energy Storage Materials Pub Date : 2025-04-14 DOI: 10.1016/j.ensm.2025.104259

Xinxin Wang, Xiangrui Duan, Qin Chen, Wanming Li, Zihan Zhang, Wen Zhang, Siwei Gui, Junhong Wei, Yanming Cui, Jiu Lin, Huiqiao Li, Hui Yang

{"title":"Scalable Production of Ultrathin Li-Sn-In Alloy Foil with Interpenetrated Skeleton for High-Energy-Density Lithium Metal Batteries","authors":"Xinxin Wang, Xiangrui Duan, Qin Chen, Wanming Li, Zihan Zhang, Wen Zhang, Siwei Gui, Junhong Wei, Yanming Cui, Jiu Lin, Huiqiao Li, Hui Yang","doi":"10.1016/j.ensm.2025.104259","DOIUrl":"https://doi.org/10.1016/j.ensm.2025.104259","url":null,"abstract":"Lithium (Li) metal holds great promise to be the ultimate anode owing to its high specific capacity and low redox potential. However, simultaneously addressing the challenges of uncontrollable dendrites growth, huge volume change, and poor processability is crucial for its practical application in next-generation high-energy-density batteries. Herein, a practical ultrathin (10 μm) Li-rich Li-Sn-In alloy (LSI) composite electrode with simultaneously optimized interphase and mechanical properties is fabricated through a scalable mechanical kneading process using Li and In<sub>52</sub>Sn<sub>48</sub> foils. The stable interpenetrated InLiSn skeleton in the electrode not only accommodates volume changes but also regulates Li stripping/plating, contributing to superior performances compared to that of pure Li metal electrode. Significantly, the LSI-20||LSI-20 symmetric cell, in which the LSI electrode is produced with 20 wt % In<sub>52</sub>Sn<sub>48</sub> alloy (LSI-20), exhibits a stable cycling in carbonate-based electrolytes for 2,700 hours at 1 mA cm<sup>-2</sup> and 1 mAh cm<sup>-2</sup>. The NCM95||LSI-20 coin-type full cell with an ultrahigh loading cathode (∼18 mg cm<sup>-2</sup>) also reveals a high capacity retention of 89.2% for 200 cycles at 0.5 C. More impressively, the NCM95||LSI-20 pouch cell with a low N/P capacity ratio of ∼ 2.0 delivers a high energy density of ∼ 495.5 Wh kg<sup>-1</sup> at 0.2 C, and maintains 91.7% capacity retention over 100 cycles, demonstrating the promising practical application potential of the LSI anode in the next-generation high-energy Li metal batteries (LMBs).","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"46 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143832478","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

Carbon nanotubes grafted conductive polymer constructs robust multi-scale conductive pathways for high-performance anodes 碳纳米管接枝导电聚合物为高性能阳极构建了稳健的多尺度导电通道

IF 18.9 1区材料科学

Energy Storage Materials Pub Date : 2025-04-13 DOI: 10.1016/j.ensm.2025.104255

Lu Wang , Yan Zhao , Hao Zhang , Haoliang Wang , Chuanxi Chen , Yuxiang Huang , Haoyu Xue , Yumeng Lan , Fen Qiao , Junfeng Wang , Zirui Lou , Feng Pan

{"title":"Carbon nanotubes grafted conductive polymer constructs robust multi-scale conductive pathways for high-performance anodes","authors":"Lu Wang , Yan Zhao , Hao Zhang , Haoliang Wang , Chuanxi Chen , Yuxiang Huang , Haoyu Xue , Yumeng Lan , Fen Qiao , Junfeng Wang , Zirui Lou , Feng Pan","doi":"10.1016/j.ensm.2025.104255","DOIUrl":"10.1016/j.ensm.2025.104255","url":null,"abstract":"<div><div>As the representative high-performance anode, the performance of silicon-based anode in high-energy lithium-ion batteries is hindered by significant volumetric fluctuations and poor conductivity. Carbon nanotubes (CNTs) have emerged as pivotal conductive additives and structural stabilizers in silicon-based electrodes. However, the insulation of commercial binders and their limited interaction with CNTs prevent the CNTs from performing their intended roles, particularly in commercial electrodes with high anode material content. To address this, the study introduces a novel conductive binder (PCNT) by grafting conductive polyfluorene onto the surface of CNTs. The long/short-range electron transport channels intertwine to form a dense, multi-scale conductive network, which endows the binder with remarkable conductivity and efficient electron transfer at the CNTs interface, significantly reducing voltage polarization in graphite/SiO<em><sub>x</sub></em> electrodes and enhancing rate performance. Even with an ultra-low binder content (5 wt % without other additives), the constructed robust framework effectively suppresses electrode expansion and internal void cracking, which helps decelerate the aging process of solid-electrolyte interphase (SEI). Thus, it maintains the integrity of the electronic percolation network, improving the cycling stability of the electrodes. The effective synergy between conductivity, adhesiveness, and mechanical properties offers new insights into the application of CNTs and conductive polymers in silicon-based electrodes.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"78 ","pages":"Article 104255"},"PeriodicalIF":18.9,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143827398","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

Advancing Polyimide Electrodes From Half-Cells to Pouch Cells: Balancing $/kWh, Stability, and Scalability for Practical Li-ion Organic Batteries 推进聚酰亚胺电极从半电池袋电池：平衡$/千瓦时，稳定性和可扩展性的实用锂离子有机电池

IF 18.9 1区材料科学

Energy Storage Materials Pub Date : 2025-04-13 DOI: 10.1016/j.ensm.2025.104254

Nagaraj Patil , Jesus I. Medina-Santos , Enrique García-Quismondo , Nicolas Goujon , David Mecerreyes , Jesus Palma , Rebeca Marcilla

{"title":"Advancing Polyimide Electrodes From Half-Cells to Pouch Cells: Balancing $/kWh, Stability, and Scalability for Practical Li-ion Organic Batteries","authors":"Nagaraj Patil , Jesus I. Medina-Santos , Enrique García-Quismondo , Nicolas Goujon , David Mecerreyes , Jesus Palma , Rebeca Marcilla","doi":"10.1016/j.ensm.2025.104254","DOIUrl":"10.1016/j.ensm.2025.104254","url":null,"abstract":"<div><div>Organic batteries hold great promise for sustainable energy storage, yet research has largely focused on material-level development, with practical optimization remaining underexplored. This work systematically addresses this gap by optimizing polyimide (PI) composition, mass loading, and electrode design, starting with Li-ion half-cells. Even at high mass loadings (up to 55 mg cm⁻²), PI electrodes exhibited exceptional gravimetric, areal, and volumetric capacities (155 mAh g⁻¹, 8.5 mAh cm⁻², 129 mAh cm⁻³) and outstanding specific energies (416 Wh kg⁻¹, 22.9 mWh cm⁻², 371 Wh L⁻¹), among the highest reported for organic Li-ion electrodes. Moving to practical systems, semi-organic Li-ion full cells, such as Li_graphite//PI, Li_LTO//PI, PI//LFP, and PI//NMC, assembled in both coin- and pouch-type configurations demonstrate PI electrode's viability, with Li_graphite//PI pouch cells achieving 210 Wh kg⁻¹ and 32 mWh cm⁻² at 2.2 V, alongside robust cycling stability. Finally, increasing PI content to 90 wt.% at 50 mg cm⁻² further enhances gravimetric energy density (185 Wh kg<sub>electrodes</sub>⁻¹), reduces cost ($70 per kWh), and improves sustainability without compromising performance. These findings highlight PI's potential for next-generation organic batteries and provide a rigorous performance benchmark, setting new standards for evaluating and commercializing organic electrode materials.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"78 ","pages":"Article 104254"},"PeriodicalIF":18.9,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143827445","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

Tungsten-doping enables excellent kinetics and high stability of cobalt-free ultrahigh-nickel single-crystal cathode 钨掺杂使无钴超高镍单晶阴极具有优异的动力学和高稳定性

IF 18.9 1区材料科学

Energy Storage Materials Pub Date : 2025-04-10 DOI: 10.1016/j.ensm.2025.104251

Jinfeng Zheng , Shangquan Zhao , Weicheng Guan , Shengnan Liao , Ting Zeng , Shirui Zhang , Zhihao Yue , Shan Fang , Naigen Zhou , Yinzhu Jiang , Yong Li

{"title":"Tungsten-doping enables excellent kinetics and high stability of cobalt-free ultrahigh-nickel single-crystal cathode","authors":"Jinfeng Zheng , Shangquan Zhao , Weicheng Guan , Shengnan Liao , Ting Zeng , Shirui Zhang , Zhihao Yue , Shan Fang , Naigen Zhou , Yinzhu Jiang , Yong Li","doi":"10.1016/j.ensm.2025.104251","DOIUrl":"10.1016/j.ensm.2025.104251","url":null,"abstract":"<div><div>Cobalt-free ultra-high nickel (LiNi<sub>x</sub>Mn<sub>1-x</sub>O<sub>2</sub>, NM, <em>x</em> ≥ 0.9) single crystal cathode material possesses great potential application due to its low cost and high structure stability, but it demonstrates poor rate performance and low capacity, suppressing its practical application progress. Doping high-valent ions (such as tungsten, W) is suggested to be a promising solution to address the above problems, however, the doping intrinsic role of which is still unclear since non-doping effects coexist. In this work, only W bulk-doping in single crystal NM cathode is achieved by high-temperature two-step sintering method to explore the W-doping effects, which can enhance Li<sup>+</sup> diffusion and electronic conductivity regardless of the Co deficiency and long Li<sup>+</sup> diffusion channel, thereby increasing the available specific capacity and rate capability of the cathode material. It shows that the initial Coulombic efficiency increases by about 4 %, corresponding to a discharge specific capacity increase of >10 mAh g<sup>−1</sup> after doping W. Besides, the specific capacity of W-doped cathode can reach 133 mAh g<sup>−1</sup> at a high current of 5 C, which is much higher than 107 mAh g<sup>−1</sup> of the pristine cathode. Moreover, the introduction of strong W–O bonds can bind lattice oxygen, inhibiting oxygen release and harmful phase transitions, improving structural and thermal stability as a result. This work provides an effective strategy for developing cobalt-free cathode materials and a new perspective for understanding the electrochemical performance enhancement by doping high-valence ions.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"78 ","pages":"Article 104251"},"PeriodicalIF":18.9,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143814216","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