Energy Storage Materials最新文献

{"title":"Chelation-tamed electrolytes for durable and wide-temperature potassium-ion batteries","authors":"Shiwan Zhang, Yuxuan Yang, Zhe Zhang, Jiacheng Zhu, Linlin Wang, Guangqiang Hou, Yue Bai, Yuxuan Xing, Hongliang Li, Yonghui Wang, Xuefeng Wang, Xiao Ji, Lin Guo, Yujie Zhu","doi":"10.1016/j.ensm.2026.105563","DOIUrl":"https://doi.org/10.1016/j.ensm.2026.105563","url":null,"abstract":"Potassium-ion batteries have largely inherited electrolyte design principles established for lithium-based systems, in which strong cation-solvent interactions are generally considered detrimental. Herein, we systematically investigate a series of solvent molecules with distinct chelation capabilities and reveal that contrary to conventional electrolyte design principles, rationally strengthened K<ce:sup loc=\"post\">+</ce:sup>-solvent interactions can be beneficial owing to the unique physicochemical characteristics of K<ce:sup loc=\"post\">+</ce:sup>. The enhanced K<ce:sup loc=\"post\">+</ce:sup> coordination simultaneously improves oxidative stability, suppresses solvent-induced interfacial decomposition, and enables excellent compatibility with both cathodes and anodes. As a result, the as-developed electrolyte enables 4.2 V K<ce:inf loc=\"post\">2</ce:inf>Mn[Fe(CN)<ce:inf loc=\"post\">6</ce:inf>]||graphite full cells to achieve 82.53% capacity retention after 2000 cycles at 0.5 C and demonstrate a reliable operation from –20 to 90°C. Furthermore, a record-scale 600 mAh pouch cell is demonstrated, underscoring the viability of the proposed electrolyte. Beyond developing a high-performance electrolyte, this work challenges the prevailing lithium-derived electrolyte design philosophy and establishes a new design principle for high-voltage potassium-ion batteries.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"77 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149084616","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}

{"title":"Strain buffer of a dual-phase P2/P′2 heterostructure enables cycling stability in Mn-based cathodes","authors":"Cheng Wei, Jingyuan Guo, Zijin Cui, Linzhuang Xing, Yuan Ha, Hongyu Yang, Yihang Li, Zhimin Li, Yue Hao","doi":"10.1016/j.ensm.2026.105565","DOIUrl":"https://doi.org/10.1016/j.ensm.2026.105565","url":null,"abstract":"Manganese-based layered oxides are regarded as promising cathode materials for sodium-ion batteries, in which the P′2-type Na<ce:italic><ce:inf loc=\"post\">x</ce:inf></ce:italic>MnO<ce:inf loc=\"post\">2</ce:inf> exhibits high reversible capacity via Mn<ce:sup loc=\"post\">3+</ce:sup>/Mn<ce:sup loc=\"post\">4+</ce:sup> redox couple. However, the P′2 single-phase material has always been subject to structural degradation driven by Jahn–Teller distortion and anisotropic strain during cycling. Here, by applying different annealing and cooling protocols, we reproducibly obtain a dual-phase P2/P′2 cathode containing in-plane boundary features indicative of local heterostructural coupling. This coupling effect between the two phases redistributes anisotropic deformation, moderates the abrupt high-voltage structural transformation, and retains accessible Na<ce:sup loc=\"post\">+</ce:sup> transport pathways, thereby improving the reversibility of the overall structural evolution. Consequently, under extended-window testing from 1.5 to 4.4 V, the integrated P2/P′2 Na<ce:inf loc=\"post\">0.75</ce:inf>MnO<ce:inf loc=\"post\">2</ce:inf> cathode delivers a specific capacity of 214 mAh g<ce:sup loc=\"post\">–1</ce:sup> at 0.05 C. During the cycling test within 2.0–4.2 V, it retains 94% of the initial capacity after 100 cycles at 1 C. This strain engineering strategy offers a novel solution to the trade-off challenge between capacity and cycling stability in manganese-based layered oxide cathodes.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"26 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149084615","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}

{"title":"An alkaline salting-out liquid membrane enabling ultra-stable alkaline zinc-iron flow battery","authors":"Hongju Li, Haiyang Yu, Shichao Liu, Lei Liu, Jianhui Wang","doi":"10.1016/j.ensm.2026.105562","DOIUrl":"https://doi.org/10.1016/j.ensm.2026.105562","url":null,"abstract":"The widespread adoption of all-vanadium flow batteries has been hindered by expensive vanadium-based electrolytes and Nafion membranes. Alkaline zinc–iron flow batteries (AZIFBs) offer low-cost and high-voltage active species; however, their practical implementation is constrained by poor stability and low efficiency, with low ion selectivity of Nafion membranes representing a critical membrane-related bottleneck. Membrane-free designs enabled by organic–aqueous biphasic stratification provide a low-cost alternative, but the direct catholyte-anolyte contact further exacerbates the already poor stability, while the heavy use of organic solvents raises safety and environmental concerns. Here, we develop an alkaline salting-out strategy that enables a triphasic battery configuration of catholyte––alkaline salting-out liquid membrane (ASOLM)––anolyte. This design prevents direct catholyte-anolyte contact and minimizes the use of organic solvents, thereby realizing a liquid-membrane-based aqueous flow battery for the first time. Compared with the conventional Nafion N212 membrane, ASOLM exhibits 3–4 orders of magnitude lower active-species permeation flux and 2.3-fold higher ionic conductivity, while its cost is only 0.07% of that of N212. When applied in AZIFBs, the system demonstrates exceptional stability over 2000 cycles and a 173-fold improvement in self-discharge resistance relative to the N212-based battery. Besides, it also shows stable operation under wide-temperature, start-stop and vibratory conditions. Our ASOLM addresses the long-standing trade-off among stability, ion selectivity and cost commonly encountered in conventional solid-membrane and membrane-free designs, thereby advancing AZIFB practical development.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"107 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149084617","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}

{"title":"Fluorinated ether cosolvents to prevent aluminum current collector corrosion for high-voltage sodium metal batteries","authors":"Longqing Huang, Kehuang Wang, Wenjun Zhang, Zhongxue Chen, He Miao, Jinliang Yuan, Lan Xia","doi":"10.1016/j.ensm.2026.105566","DOIUrl":"https://doi.org/10.1016/j.ensm.2026.105566","url":null,"abstract":"Aluminum (Al) current collector corrosion at high potentials is an underrecognized failure mode that constrains the durability and charging capability of high-voltage sodium metal batteries (SMBs), particularly in electrolytes based on sodium bis(fluorosulfonyl)imide (NaFSI). To clarify the corrosion mechanism and develop mitigation strategies, we introduce 1, 1, 2, 2-tetrafluoroethyl-2, 2, 3, 3-tetrafluoropropyl ether (TTE) as a cosolvent. Molecular dynamics (MD) simulations of the electrolyte/Al interface, together with theoretical calculations, show that uncoordinated FSI<ce:sup loc=\"post\">-</ce:sup> strongly adsorbs on Al, forming soluble Al(FSI)<ce:inf loc=\"post\">3</ce:inf> and thereby initiating pitting; independently synthesized Al(FSI)<ce:inf loc=\"post\">3</ce:inf> dissolves readily, corroborating this pathway experimentally. Nuclear magnetic resonance (NMR) analyses and theoretical calculations further indicate that incorporating TTE into a conventional NaFSI-based carbonate electrolyte can lower the polarity of the solvent matrix and enhance FSI⁻ participation in the primary Na<ce:sup loc=\"post\">+</ce:sup> solvation shell, thereby reducing the concentration and flux of free FSI<ce:sup loc=\"post\">-</ce:sup> and interrupting the corrosion pathway at the Al surface. Benefiting from that, Na||Na<ce:inf loc=\"post\">3</ce:inf>V<ce:inf loc=\"post\">2</ce:inf>(PO<ce:inf loc=\"post\">4</ce:inf>)<ce:inf loc=\"post\">3</ce:inf> (NVP) cells deliver 90.8% retention and over 99.9% average coulombic efficiency at 1 C after 500 cycles. Na (50 μm)||NVP cells (mass loading: 15 mg cm<ce:sup loc=\"post\">-2</ce:sup>, N/P = 3.2) with a capacity retention of 94.8% after 200 cycles, whereas high-voltage Na||Na<ce:inf loc=\"post\">0.67</ce:inf>Mn<ce:inf loc=\"post\">0.67</ce:inf>Ni<ce:inf loc=\"post\">0.33</ce:inf>O<ce:inf loc=\"post\">2</ce:inf> (NFM) cells retained 81.89% after 200 cycles between 2.0 and 4.2 V. This work introduces a solvation-structure engineering strategy that stabilizes Al current collectors in NaFSI-based carbonate electrolytes and offers a practical route to durable, high-voltage SMBs.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"68 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149084614","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}

{"title":"Soft-Acid-Triggered Water Speciation Engineering: Reconfiguring the Aqueous Microenvironment in Prussian Blue Cathodes for High-Performance Sodium-Ion Batteries","authors":"Zhuo Chen, Shiyuan Fan, Pengwei Zhao, Weipeng Zhao, Bin Chen, Chen Yuan, Jiaqi Feng, Wenchao Peng, Yang Li, Qicheng Zhang, Xiaobin Fan","doi":"10.1016/j.ensm.2026.105559","DOIUrl":"https://doi.org/10.1016/j.ensm.2026.105559","url":null,"abstract":"Prussian blue analogs (PBAs) are premier candidates for sodium-ion batteries, yet their electrochemical fate is inextricably linked to the heterogeneous nature of lattice water. Herein, we propose a ”Water Speciation Engineering” strategy guided by the Hard and Soft Acids and Bases (HSAB) theory to fundamentally resolve the water induced instability. We demonstrate that minor substitution of the soft-acid Cd2+ triggers a strategic reconfiguration of the aqueous microenvironment. Unlike conventional dehydration, the distinct coordination of Cd2+ with cyanide ligands induces localized lattice distortion and creates [Fe(CN)6] vacancies as thermodynamic anchoring sites. This process drives the topotactic migration of detrimental interstitial water into these vacancies, transforming it into chemically integrated coordinated water. The enriched coordinated water acts as a molecular dielectric, homogenizing the electrostatic potential to facilitate frictionless Na+ transport while simultaneously functioning as a mechanical buffer to dissipate lattice strain. Consequently, the engineered FeCdPBA cathode achieves an exceptional rate capability (106.7 mAh g–1 at 2 A g–1) and cycling longevity (88.0 % retention over 1000 cycles). This work provides a transformative paradigm for addressing the \"aqueous dilemma\" in open framework energy materials.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"60 1","pages":"105559"},"PeriodicalIF":20.4,"publicationDate":"2026-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149084618","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}

{"title":"Charge-Mediated Interfacial Coupling in Carbon Nanotube Conductive Networks Enables Concurrent Mechanical Reinforcement and SEI Stabilization for Durable SiOx Anodes","authors":"Zikai Li, Ming Zhang, Ziqi Xie, Yechen Si, Weikang Xia, Yu Liu, Tuo Deng, Chengling Qiu, Qi Chen, Junjie Wang, Guoyu Wang, Tong Zhang, Haiping Zhou, Zixuan Fang, Mengqiang Wu","doi":"10.1016/j.ensm.2026.105555","DOIUrl":"https://doi.org/10.1016/j.ensm.2026.105555","url":null,"abstract":"Micron-scale SiO<ce:inf loc=\"post\">x</ce:inf> anodes suffer from electrical contact failure due to volume expansion, which severely compromises their long-term electrochemical stability and practical viability. Herein, we establish charge-mediated interfacial coupling in CNT conductive networks through tannic acid anchoring on aminated CNTs. This anchoring originates from ionic pairing between protonated amines and phenolic oxygen anions, enriching the CNT surface with abundant polyphenolic hydroxyls (Ph–OH) and protonated amines (–NH<ce:inf loc=\"post\">3</ce:inf><ce:sup loc=\"post\">+</ce:sup>) as active donor sites. The resulting multi-type hydrogen-bonding interactions with charge-assisted strengthening provide solid-solid interfacial reinforcement across the CNT-binder and CNT-SiO<ce:inf loc=\"post\">x</ce:inf> interfaces, stabilizing electrical contacts and preserving structural integrity under repeated volumetric stress. Moreover, local modulation of the LiPF<ce:inf loc=\"post\">6</ce:inf> ion-association environment by the charged and polyphenolic interfacial sites on TNC favors the evolution of a thin, LiF-rich solid electrolyte interphase (SEI) with balanced organic/inorganic composition. The resultant electrode delivers a capacity retention of 81.82% after 450 cycles at 0.3 C. An Ah-level NCM811|| SiO<ce:inf loc=\"post\">x</ce:inf> pouch cell employing this electrode delivers improved cycling stability with a capacity retention of 81.37% after 100 cycles at 1 C and retains 52.68% of its 0.1 C capacity at 4 C. This work highlights ion-pair-anchored polyphenol surface chemistry as the chemical basis for a charge-mediated interfacial coupling mechanism that concurrently reinforces solid-solid interfaces and regulates solid-liquid interphase evolution toward durable SiO<ce:inf loc=\"post\">x</ce:inf> anodes.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"34 1","pages":"105555"},"PeriodicalIF":20.4,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149085239","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}

{"title":"Bromophenyl-Crosslinked \"Rigid yet Compliant\" Flame-Retardant Polyether Electrolyte for High-Voltage and Wide-Temperature Lithium Metal Batteries","authors":"Guanrong Ou, Wenhao Yang, Huiru Chen, Lingxi Yang, Ziqian Li, Gaochuang He, Zhi Yang, Wenjing Liu, Xin Wang, Shuang-Zhuang Guo","doi":"10.1016/j.ensm.2026.105529","DOIUrl":"https://doi.org/10.1016/j.ensm.2026.105529","url":null,"abstract":"<ce:italic>In situ</ce:italic> polymerized polymer electrolytes are promising for solid-state lithium metal batteries (SLMBs), yet they face intrinsic trade-offs between thermal resilience and high-voltage stability. Herein, we propose a \"rigid yet compliant\" molecular design paradigm to construct a cross-linked polyether-based electrolyte via <ce:italic>in situ</ce:italic> polymerization. This strategy integrates rigid bromophenyl groups-serving as both anion-anchoring and flame-retardant units-with flexible, Li<ce:sup loc=\"post\">+</ce:sup>-conducting ether-oxygen chains within a covalently bonded network. This architectural synergy guides the formation of gradient-structured solid electrolyte interface (SEI) and cathode electrolyte interface (CEI) at both electrodes, featuring a mechanically robust inorganic-rich inner layer and an adaptive organic outer layer. The resulting electrolyte demonstrates superior electrochemical properties, including an ionic conductivity of 0.70 mS cm<ce:sup loc=\"post\">−1</ce:sup> at 25°C, a high Li<ce:sup loc=\"post\">+</ce:sup> transference number of 0.81, and a wide electrochemical stability window of 5.7 V. It enables stable Li plating/stripping for over 2800 h and inherent flame-retardant characteristics. Notably, full cells assembled with this electrolyte deliver exceptional cycling stability under high-voltage conditions (e.g., 4.5 V-class LiNi<ce:inf loc=\"post\">0.8</ce:inf>Co<ce:inf loc=\"post\">0.1</ce:inf>Mn<ce:inf loc=\"post\">0.1</ce:inf> and 4.6 V-class Li-rich Mn-based layered oxides) and across a wide temperature range (−20 to 60°C). The practical viability and safety of the PBDOL system are further validated in pouch cells under severe mechanical and thermal abuse. This work provides a definitive design guideline for highly safe, high-voltage, and wide-temperature quasi-solid-state LMBs.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"32 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148980422","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}

{"title":"Local Strain Switches CO₂ Reduction to a 3.13 V Li₂C₂O₄ Pathway for Li-CO2 Batteries","authors":"Yang Wang, Yuanjia Wang, Ting Zhang, Guang Feng, Kaiyu Liu, Yan Zhang, Tao Chen","doi":"10.1016/j.ensm.2026.105463","DOIUrl":"https://doi.org/10.1016/j.ensm.2026.105463","url":null,"abstract":"","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"102 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2026-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148716698","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}

{"title":"Defect-Mediated Interfacial Recovery of Battery-Grade Graphite from Spent Lithium-Ion Batteries","authors":"Xiao Wang, Cong-Cong Zhang, Mengmeng Wang, Chuan Wang, Zhiyi Qu, Yanjun Liu, Ziyang Liu, Fu-Shen Zhang","doi":"10.1016/j.ensm.2026.105461","DOIUrl":"https://doi.org/10.1016/j.ensm.2026.105461","url":null,"abstract":"","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"6 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148716707","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}

{"title":"Fluorinated Diluent-Induced Solvation Modulation and Hybrid Interphase Enable High-Rate and Stable Li/Cr8O21 Primary Batteries","authors":"Xingyu Wang, Wangshu Hou, Shuyang Gao, Xin Chen, Yuanheng Wang, Jiaxin Yan, Haixia Yang, Shilin Xu, Guangyu Cheng, Ying Luo, Rui Guo, Jingying Xie, Pengjian Zuo","doi":"10.1016/j.ensm.2026.105457","DOIUrl":"https://doi.org/10.1016/j.ensm.2026.105457","url":null,"abstract":"","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"166 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148716701","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}