Energy Storage Materials最新文献

Anion-Diluent Synergistic Strategy for Improved Interfacial Stability in Lithium Metal Batteries 提高锂金属电池界面稳定性的阴离子-稀释剂协同策略

IF 20.4 1区材料科学

Energy Storage Materials Pub Date : 2025-04-05 DOI: 10.1016/j.ensm.2025.104239

Xinjing Huang, Xiaozhi Jiang, Chenyang Shi, Mengran Wang, Yangen Zhou, Bo Hong, Jie Li, Yanqing Lai

{"title":"Anion-Diluent Synergistic Strategy for Improved Interfacial Stability in Lithium Metal Batteries","authors":"Xinjing Huang, Xiaozhi Jiang, Chenyang Shi, Mengran Wang, Yangen Zhou, Bo Hong, Jie Li, Yanqing Lai","doi":"10.1016/j.ensm.2025.104239","DOIUrl":"https://doi.org/10.1016/j.ensm.2025.104239","url":null,"abstract":"Recently, high-voltage Li metal batteries (LMBs) have shown great potential as high-energy-density energy storage devices. However, current electrolytes struggle to form stable interfacial films on both the Li anode and high-voltage cathode simultaneously, leading to unsatisfactory cycling stability in high-voltage LMBs. Here, lithium bis(oxalate)borate (LiBOB) with a large π conjugate structure and fluorine-rich hydrofluoroether (HFE) are co-introduced into conventional ether electrolyte to balance dipole-dipole interactions. This results in the formation of an elastic F- and B-O-rich anodic interfacial layer and a robust boron-rich cathode-electrolyte interphase (CEI), leading to superior cycling ability. Consequently, the Li||Cu cell shows an extremely long cycle life of 9500 hours under 1 mA cm−2 and 1 mAh cm−2, which is the best as reported so far. The Li||LiCoO2 cells exhibit a superior capacity retention of ∼82.32% under 4.5 V after 160 cycles, with an average CE of > 99.9%. The correspondent Li||NCM811 pouch cells (5 Ah, 400 Wh/kg; 3.3 Ah, 434 Wh/kg) could stably cycle at 0.5 C for 200 cycles and 130 cycles, respectively. This work offers a novel and effective strategy to commercialize ether-based electrolytes for high-energy-density and long-life LMBs.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"73 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143782697","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

Direct regeneration of highly degraded LiNi0.6Co0.2Mn0.2O2 to high-performance single-crystalline cathodes

IF 20.4 1区材料科学

Energy Storage Materials Pub Date : 2025-04-05 DOI: 10.1016/j.ensm.2025.104240

Zhenzhen Liu, Zongkun Bian, Heng Zhang, Xi Wu, Zhen Fu, Haimin Zhang, Guozhong Wang, Yunxia Zhang, Huijun Zhao

{"title":"Direct regeneration of highly degraded LiNi0.6Co0.2Mn0.2O2 to high-performance single-crystalline cathodes","authors":"Zhenzhen Liu, Zongkun Bian, Heng Zhang, Xi Wu, Zhen Fu, Haimin Zhang, Guozhong Wang, Yunxia Zhang, Huijun Zhao","doi":"10.1016/j.ensm.2025.104240","DOIUrl":"https://doi.org/10.1016/j.ensm.2025.104240","url":null,"abstract":"The widespread popularization of electric vehicles and portable electronics gives rise to the concomitant surge of spent lithium-ion batteries (LIBs). Considering the resource shortage and environmental concerns, recycling degraded cathode materials is highly desirable to ensure the sustainable development of the whole LIBs industry. To this end, a facile LiBr-LiOH eutectic molten salt strategy is proposed for direct regeneration of highly degraded polycrystalline LiNi0.6Co0.2Mn0.2O2 (denoted as D-NCM622), which enables efficient renovation of the nonstoichiometric composition and damaged crystal structure in D-NCM622, including full Li-supplement, complete restoration from rock salt/spinel phases to the original layered structure, suppressive cation disorder, and reconstructed single-crystalline nature. Benefiting from these favorable structural characteristics, the regenerated cathodes (R-NCM622) exhibit significantly enhanced electrochemical performance relative to D-NCM622, delivering an initial discharge capacity of 174.0 mAh g−1 at 0.2 C, capacity retention of 82.5% after 200 cycles at 0.5 C, and excellent rate performance (136.7 mAh g−1 at 5 C), which is comparable to the fresh commercial NCM622 (C-NCM622). More significantly, the current regeneration route possesses the incomparable advantages in economic benefit and environmental impact compared to conventional recycling routes based on techno-economic analysis, ensuring sustainable recycling from highly degraded cathode materials.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"59 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143782701","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

Decoding Battery Aging in Fast-Charging Electric Vehicles: An Advanced SOH Estimation Framework Using Real-World Field Data

IF 20.4 1区材料科学

Energy Storage Materials Pub Date : 2025-04-05 DOI: 10.1016/j.ensm.2025.104236

Caiping Zhang, Jinyu Wang, Linjing Zhang, Weige Zhang, Tao Zhu, Xiao-Guang Yang, Andrew Cruden

{"title":"Decoding Battery Aging in Fast-Charging Electric Vehicles: An Advanced SOH Estimation Framework Using Real-World Field Data","authors":"Caiping Zhang, Jinyu Wang, Linjing Zhang, Weige Zhang, Tao Zhu, Xiao-Guang Yang, Andrew Cruden","doi":"10.1016/j.ensm.2025.104236","DOIUrl":"https://doi.org/10.1016/j.ensm.2025.104236","url":null,"abstract":"Accurately estimating the state of health (SOH) of in-vehicle batteries is critical for advancing electric vehicle (EV) technology. However, higher charging rates and more complex driving conditions have posed major challenges, with significant variations from vehicle-to-vehicle and cycle-to-cycle. In this study, we developed a SOH estimation framework to monitor battery capacity degradation, in EVs with multi-step constant-current fast charging and voltage balancing technology. The framework employs a customized data window approach, informed by a thorough analysis of EV charging behavior, and extracts hierarchical features from vehicle-, pack- and cell-levels for tracking battery aging. We collected real-world charging data from 300 pure EVs over 1.5 years, resulting in 193,180 samples for validation. The best-performing machine learning models achieved an absolute error of less than 2% for 93.7% of samples, a root mean square error (RMSE) of 1.05%, and a maximum error of only 3.73% whilst using only 30% data for training. Our analysis indicates that the proposed model can be effectively developed without the need to pre-select vehicles based on specific driving habits or operating conditions. Notably, reliable and accurate estimations were produced using data from just one vehicle, achieving an RMSE of 1.82%. Our results highlight the potential of user behavior-assisted feature engineering to decode battery pack aging under dynamically changing vehicle profiles. This work underscores the promise of developing accurate SOH estimation modules for battery management systems using minimal vehicle data.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"37 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143782699","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

Understanding and Mitigating Acidic Species in All-Fluorinated Electrolytes for a Stable 572 Wh/kg Lithium Metal Battery (LMB)

IF 20.4 1区材料科学

Energy Storage Materials Pub Date : 2025-04-05 DOI: 10.1016/j.ensm.2025.104234

Pan Luo, Ying Zhang, Jialin Song, Xing Li, Qiu Chen, Qinghua Yang, Li Liao, Haoyi Yang, Mingshan Wang, Zhengzhong Yang, David Mitlin

{"title":"Understanding and Mitigating Acidic Species in All-Fluorinated Electrolytes for a Stable 572 Wh/kg Lithium Metal Battery (LMB)","authors":"Pan Luo, Ying Zhang, Jialin Song, Xing Li, Qiu Chen, Qinghua Yang, Li Liao, Haoyi Yang, Mingshan Wang, Zhengzhong Yang, David Mitlin","doi":"10.1016/j.ensm.2025.104234","DOIUrl":"https://doi.org/10.1016/j.ensm.2025.104234","url":null,"abstract":"Fluorine-rich electrolytes hold promise to significantly enhance the energy and the safety of lithium metal batteries (LMBs). However, they generate acidic species, especially when lithium hexafluorophosphate (LiPF6) is used as the lithium salt. This critical issue impedes their wide-scale utilization but has to date received minimum analysis. Herein, we reveal the mechanisms behind the exacerbation of HF generation in LiPF6-based all-fluorinated electrolytes and propose a universally applicable mitigation strategy. The screened additive Tris(trimethylsilyl)phosphate (TMSPa) reacts with HF and stabilizes PF5, preventing its further hydrolysis and thereby effectively reducing the HF content in fluorine-rich electrolytes. TMSPa contributes to preferentially form a conductive and protective solid electrolyte interphase (SEI), suppressing interface parasitic reactions and ensuring the structural integrity of electrode materials throughout battery cycling. The all-fluorinated electrolytes developed in this work with the addition of TMSPa (AFE-TMSPa) demonstrates a wide electrochemical window (4.6 V), high-temperature stability (up to 55°C), and enhanced safety for LMBs (flame-retardant and dendrite-suppressing). A Li metal pouch cell (7.2 Ah) employing AFE-TMSPa (NCM811 double sided cathode with a mass loading of 80.72 mg/cm2), and lean electrolytes at 1.23 g Ah−1, achieves an energy density of 572 Wh kg−1 at a 0.1 C rate. In a Li||NCM811 coin cell with a 50 µm thick Li-metal anode and a high-loading NCM811 cathode (19.8 mg cm−2, 3.96 mAh cm−2), the system supports 160 stable cycles with a capacity retention of 89% at a 0.2 C charge and 0.5 C discharge rate.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"34 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143782702","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

Delithiation Coupling with Surface Reconstruction during Capacity Degradation in Ni-Rich Layered Cathodes

IF 20.4 1区材料科学

Energy Storage Materials Pub Date : 2025-04-05 DOI: 10.1016/j.ensm.2025.104237

Peng Wang, Lang Qiu, Fuqiren Guo, Yuting Deng, Junbo Zhou, Shuli Zheng, Jun Zhang, Yongpeng Liu, Benhe Zhong, Yang Song, Xiaodong Guo

{"title":"Delithiation Coupling with Surface Reconstruction during Capacity Degradation in Ni-Rich Layered Cathodes","authors":"Peng Wang, Lang Qiu, Fuqiren Guo, Yuting Deng, Junbo Zhou, Shuli Zheng, Jun Zhang, Yongpeng Liu, Benhe Zhong, Yang Song, Xiaodong Guo","doi":"10.1016/j.ensm.2025.104237","DOIUrl":"https://doi.org/10.1016/j.ensm.2025.104237","url":null,"abstract":"Surface reconstruction and mechanical failure play key roles in the capacity loss of Ni-rich cathodes, yet their intertwining influences are still not completely elucidated. Herein, this work deconvolutes the primary-secondary relationships between surface reconstruction and mechanical failure in affecting capacity decay for LiNixCoyMn1-x-yO2 (NCM) cathodes. Electrochemical performance tests show that two Ni-rich cathodes with different nickel contents including LiNi0.6Co0.2Mn0.2O2 (NCM622) and LiNi0.9Co0.05Mn0.05O2 (NCM9055) in the same delithiation state exhibit similar initial discharge specific capacities and capacity retentions after cycling, which unveils that capacity decay is directly related to the degree of delithiation. In contrast to NCM622, the deep delithiation triggers the typical H2-H3 phase transition of NCM9055, leading to higher internal strain and more severe mechanical degradation during the similar capacity fading process. Such discrepancies in structural degradations disclose that the H2-H3 phase transition and the intergranular cracking cannot be the primary causes for capacity degradation. Impressively, the resemblance in surface reconstruction evolution for two cathodes after cycling further reveals that the capacity fading is strongly dependent on the reconstruction evolving properties of the cathode particle surface layer. This work offers valuable insights and further understanding of electrochemical performance degradation, which serve to facilitate Ni-rich cathode material design improvements.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"61 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143782659","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

Enhancing Feature Importance Analysis in Battery Research: A Statistical Methods Perspective on Machine Learning Limitations

IF 20.4 1区材料科学

Energy Storage Materials Pub Date : 2025-04-05 DOI: 10.1016/j.ensm.2025.104242

Yoshiyasu Takefuji

引用次数: 0

Failure mechanism of sulfurized polyacrylonitrile (SPAN) cathode induced by boron-contained lithium salt

IF 20.4 1区材料科学

Energy Storage Materials Pub Date : 2025-04-05 DOI: 10.1016/j.ensm.2025.104243

Zuohang Li, Yijia Xu, Chenchen Zhang, Chen Li, Su Wang, Zhaokun Wang, Yue Ma, Xixi Shi, Hongzhou Zhang, Dawei Song, Lianqi Zhang

{"title":"Failure mechanism of sulfurized polyacrylonitrile (SPAN) cathode induced by boron-contained lithium salt","authors":"Zuohang Li, Yijia Xu, Chenchen Zhang, Chen Li, Su Wang, Zhaokun Wang, Yue Ma, Xixi Shi, Hongzhou Zhang, Dawei Song, Lianqi Zhang","doi":"10.1016/j.ensm.2025.104243","DOIUrl":"https://doi.org/10.1016/j.ensm.2025.104243","url":null,"abstract":"Sulfurized polyacrylonitrile (SPAN) is deemed as the most promising lithium-sulfur (Li-S) batteries cathode owing to high sulfur utilization degree and stable cycling performance. However, abnormal high initial capacity of 2683.2 mA h g-1 and severe degradation (100.5 mA h g-1, 100 cycles) induced by LiDFOB salt are observed in our work. To conduct in-depth research on related mechanism, LiPF6 and LiTFSI based batteries are tested as fair comparisons and relatively cycling performances are exhibited. The electrochemical performance of electrolyte and the interfacial properties of cycled Li anode are compared, then the impact of Li ion transfer and parasitic interface reactions are excluded. Synchrotron-based pair distribution function (PDF) and Raman spectroscopy tests indicate that new B-S bonds are generated on SPAN during the first discharge process in LiDFOB based battery, while the insertion of Li ions on S sites are greatly suppressed. Density functional theory method suggests that active S sites after S-S bond cleavage will be attacked and bonded by B from DFOB-, which is hard to break and continuously inhibit effective reactions between Li ions and S, leading to serious irreversible battery degradation. The failure mechanism of SPAN cathode induced by boron-contained lithium salt are further verified by LiBOB.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"217 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143782700","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

Metal-fatigue-resistant thin lithium foil with high depth of discharge for high-performance lithium metal batteries 用于高性能金属锂电池的高放电深度抗金属疲劳锂薄箔

IF 20.4 1区材料科学

Energy Storage Materials Pub Date : 2025-04-04 DOI: 10.1016/j.ensm.2025.104238

Xuyan Ni, Jinqiu Zhou, Kecheng Long, Shaozhen Huang, Yihuan Zhou, Zhenkang Wang, Yiwei Zheng, Tianshu Zhang, Tao Qian, Chenglin Yan, Libao Chen

{"title":"Metal-fatigue-resistant thin lithium foil with high depth of discharge for high-performance lithium metal batteries","authors":"Xuyan Ni, Jinqiu Zhou, Kecheng Long, Shaozhen Huang, Yihuan Zhou, Zhenkang Wang, Yiwei Zheng, Tianshu Zhang, Tao Qian, Chenglin Yan, Libao Chen","doi":"10.1016/j.ensm.2025.104238","DOIUrl":"https://doi.org/10.1016/j.ensm.2025.104238","url":null,"abstract":"In Li metal batteries, due to the inadequate resistance to metal fatigue of existing Li foil to withstand the severe strain during charge-discharge cycles, the Li anode is prone to pulverization, which can lead to short circuits or rapid capacity decay of batteries. This issue is further exacerbated in practical high-energy-density batteries that require high discharge depth conditions. To overcome it, a metal-fatigue-resistant thin Li (RMFLi) foil with a stable skeleton has been fabricated by employing a cyclic extrusion compression technique. This RMFLi possesses better metal fatigue resistance than pure Li, maintaining its integrity under cyclic stress and strain without cracking or fracturing. Both finite element simulations (FES) and microscopic morphological characterization provide evidence that the excellent mechanical properties of RMFLi, specifically its resistance to metal fatigue, play a significant role in facilitating controlled dense deposition of Li ions and ensure electrochemical stability of the anode during cycling. Impressively, thanks to its high fatigue resistance and stable skeleton, the RMFLi foil achieves long-term stable cycling even at a discharge depth of up to 90.3%. When paired with high-load lithium iron phosphate (LFP) and S cathodes in full cells, it achieves stable cycling for 1000 and 600 cycles, respectively. It's worth noting that the Li-S pouch cell utilizing this RMFLi foil exhibits high energy density of 391.4 Wh kg−1 and can cycle stably for 80 cycles. This study provides a scalable mechanical preparation method with tremendous expansion possibilities for manufacturing metal-fatigue-resistant thin Li foils.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"157 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143782703","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

Plasma-Enhanced Vacancy Engineering for Sustainable High-Performance Recycled Silicon in Lithium-Ion Batteries

IF 20.4 1区材料科学

Energy Storage Materials Pub Date : 2025-04-04 DOI: 10.1016/j.ensm.2025.104231

Dingyi Zhang, Hong Gao, Jiayi Li, Yiwen Sun, Zeshen Deng, Xinyao Yuan, Congcong Li, Tianxiao Chen, Xingwang Peng, Chao Wang, Yi Xu, Lichun Yang, Xin Guo, Yufei Zhao, Peng Huang, Yong Wang, Guoxiu Wang, Hao Liu

{"title":"Plasma-Enhanced Vacancy Engineering for Sustainable High-Performance Recycled Silicon in Lithium-Ion Batteries","authors":"Dingyi Zhang, Hong Gao, Jiayi Li, Yiwen Sun, Zeshen Deng, Xinyao Yuan, Congcong Li, Tianxiao Chen, Xingwang Peng, Chao Wang, Yi Xu, Lichun Yang, Xin Guo, Yufei Zhao, Peng Huang, Yong Wang, Guoxiu Wang, Hao Liu","doi":"10.1016/j.ensm.2025.104231","DOIUrl":"https://doi.org/10.1016/j.ensm.2025.104231","url":null,"abstract":"Silicon, renowned for its exceptional theoretical capacity, is a promising lithium-ion battery (LIB) anode material, yet its practical application is hindered by severe lithiation-induced volume expansion, structural instability, and high production costs. This study introduces a sustainable strategy to address these challenges by repurposing recycled photovoltaic (PV) silicon through a plasma-assisted vacancy engineering approach. By combining dielectric barrier discharge plasma-assisted milling with bismuth (Bi) modification, controlled vacancy defects are introduced into silicon microparticles, enhancing ion transport and mitigating internal stress. Bi further stabilizes the anode by absorbing mechanical stress and facilitating lithium-ion accommodation at vacancy sites. The resulting plasma induced silicon/carbon/bismuth composite demonstrates outstanding cycling stability and high-rate performance, retaining 1442 mA h g⁻¹ after 300 cycles at 0.5 A g⁻¹ and 525 mA h g⁻¹ after 1000 cycles at 7 A g⁻¹. This scalable and eco-friendly method not only overcomes the inherent limitations of silicon anodes but also transforms PV waste into high-performance LIB materials, advancing sustainable energy storage technologies.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"183 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143776214","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

Versatile chemical repair strategy for direct regeneration of cathode materials from retired lithium-ion battery

IF 20.4 1区材料科学

Energy Storage Materials Pub Date : 2025-04-03 DOI: 10.1016/j.ensm.2025.104227

Wei Liu, Linfeng Peng, Mengchuang Liu, Jiayue Peng, Ziqi Zeng, Shijie Cheng, Jia Xie

{"title":"Versatile chemical repair strategy for direct regeneration of cathode materials from retired lithium-ion battery","authors":"Wei Liu, Linfeng Peng, Mengchuang Liu, Jiayue Peng, Ziqi Zeng, Shijie Cheng, Jia Xie","doi":"10.1016/j.ensm.2025.104227","DOIUrl":"https://doi.org/10.1016/j.ensm.2025.104227","url":null,"abstract":"Direct recycling of retired lithium-ion batteries offers a promising solution to address resource scarcity and environmental concerns. While existing recovery methods focused on black mass face limitations, which underscores the demand for universal and efficient strategies to regenerate degraded cathode materials. Here, we introduce a highly compatible chemical lithiation-based method for regenerating degraded LiFePO4 materials. This process uses a multifunctional bipyridine-lithium reagent to drive spontaneous chemical reactions, followed by annealing that simultaneously restores structural integrity and introduces nitrogen doping. The regenerated material delivers a discharge capacity of 164 mAh g⁻¹ and retains 90% of its capacity after 500 cycles at 0.5C. Additionally, this method enables in-situ regeneration of degraded electrodes, yielding a 10% enhancement in initial capacity compared to untreated samples. This approach provides a feasible solution for the direct regeneration of cathode materials, paving the way for sustainable practices in the circular development of the battery industry.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"73 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767115","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