Batteries & Supercaps最新文献_第8页

Interface Modulation of Metal Sulfide Anode Materials SnS/ZnS/C for Long-Cycle-Life Sodium-Ion Batteries 长循环寿命钠离子电池金属硫化物负极材料SnS/ZnS/C的界面调制

IF 4.5 4区材料科学

Batteries & Supercaps Pub Date : 2026-08-08 DOI: 10.1002/batt.70436

Bin Geng, Zhen Ma, Sijiang Hu, Youguo Huang, Hongqiang Wang, Qichang Pan, Fenghua Zheng, Qingyu Li, Zhixiong Yan

{"title":"Interface Modulation of Metal Sulfide Anode Materials SnS/ZnS/C for Long-Cycle-Life Sodium-Ion Batteries","authors":"Bin Geng, Zhen Ma, Sijiang Hu, Youguo Huang, Hongqiang Wang, Qichang Pan, Fenghua Zheng, Qingyu Li, Zhixiong Yan","doi":"10.1002/batt.70436","DOIUrl":"https://doi.org/10.1002/batt.70436","url":null,"abstract":"Transition metal sulfides (TMS) are considered promising anode materials for sodium-ion batteries (SIBs) due to their high theoretical capacity and excellent redox reversibility. However, challenges like rapid capacity decay and sluggish reaction kinetics hinder their practical application. This study presents the development of SnS/ZnS heterostructure composites with a porous carbon layer, synthesized using NaCl as a hard template. The L-SnS/ZnS/C composites exhibit a unique structure that buffers volume stress during sodium insertion/extraction, enhances electron transport, and prevents the agglomeration of active particles. The porous carbon layer increases the contact area with the electrolyte, improving electrochemical stability and rate performance. The L-SnS/ZnS/C anode demonstrates superior cycling stability, maintaining a reversible capacity of 363.9 mAh g−1 after 750 cycles at 2 A g−1, and high-rate performance with a capacity of 370.5 mAh g−1 at 5 A g−1. The enhanced performance is attributed to the synergetic effect of the porous carbon layer and heterostructure, which together mitigate volume expansion and enhance ionic and electronic conductivity. This work offers a promising strategy for designing high-performance TMS-based anode materials for practical SIB applications.","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"9 8","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148753283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

A Low-Cost and Acid-Free Strategy for Recovering Battery-Grade Li2CO3 From Retired Lithium Metal Batteries 从退役锂金属电池中回收电池级Li2CO3的低成本和无酸策略

IF 4.5 4区材料科学

Batteries & Supercaps Pub Date : 2026-08-06 DOI: 10.1002/batt.70434

Kang Li, Qiao Wen, Rongzheng Tian, Shucai Li, Zaiwu Zhang, Tingli Yan, Wenbin Dai, Chunliang Li, Dawei Song

{"title":"A Low-Cost and Acid-Free Strategy for Recovering Battery-Grade Li2CO3 From Retired Lithium Metal Batteries","authors":"Kang Li, Qiao Wen, Rongzheng Tian, Shucai Li, Zaiwu Zhang, Tingli Yan, Wenbin Dai, Chunliang Li, Dawei Song","doi":"10.1002/batt.70434","DOIUrl":"https://doi.org/10.1002/batt.70434","url":null,"abstract":"Lithium metal batteries (LMBs) are regarded as one of the most promising technologies for overcoming the energy density limitations of lithium-ion batteries. In addition to their industrial potential, LMBs are extensively used in laboratories as benchmark systems for evaluating electrode materials, leading to a growing number of retired LMBs. The number of retired LMBs is expected to increase dramatically with future large-scale commercialization. However, recycling technologies for retired LMBs remain largely unexplored. In this study, an environmentally friendly and cost-effective recycling process for retired LMBs is developed. The entire process operates without any external chemical additives, inherently enabling low-cost operation. Moreover, the reaction byproducts can be safely collected or treated, resulting in near-zero discharge of liquid and gaseous wastes and thus minimizing environmental risks. The recovered battery-grade Li2CO3 was further used to resynthesize LiFePO4 and the resulting material exhibited electrochemical performance comparable to that of commercial counterparts. This work fills an important gap in LMB recycling and provides technical support for the sustainable development of high-energy-density LMBs throughout their full life cycle.","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"9 8","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

An Air-Stable Sodium-Containing Metal-Sulfide Cathode for the Development of Sodium-Metal-Free Room-Temperature Sodium-Sulfur Batteries 一种用于开发无钠金属室温钠硫电池的空气稳定含钠金属硫阴极

IF 4.5 4区材料科学

Batteries & Supercaps Pub Date : 2026-08-03 DOI: 10.1002/batt.70429

Mahesh Chandra, Sungjemmenla, Chhail Bihari Soni, Vineeth S. K., Rahul Singh, Sanjaykumar C, Md Osama Zubair, Hemant Kumar, Vipin Kumar

{"title":"An Air-Stable Sodium-Containing Metal-Sulfide Cathode for the Development of Sodium-Metal-Free Room-Temperature Sodium-Sulfur Batteries","authors":"Mahesh Chandra,  Sungjemmenla, Chhail Bihari Soni, Vineeth S. K., Rahul Singh, Sanjaykumar C, Md Osama Zubair, Hemant Kumar, Vipin Kumar","doi":"10.1002/batt.70429","DOIUrl":"https://doi.org/10.1002/batt.70429","url":null,"abstract":"The cathode materials comprising an alkali metal ion are considered promising for high-energy rechargeable batteries. In room-temperature sodium-sulfur batteries (RT-Na/S), the sodium metal anode is used in excess, posing safety challenges; the elemental sulfur cathode is susceptible to polysulfide dissolution, leading to cell failure. These issues can simultaneously be addressed by incorporating sodium ions into the cathode matrix. Unfortunately, most sodium-containing sulfur cathodes are either chemically unstable or prone to disintegration, limiting their use under ambient conditions. In this contribution, we report the development of an air-stable sodium-containing metal sulfide (NaCu3S2 (NCS)) and demonstrate it as a potential cathode for sodium-metal-free RT-Na/S batteries. In a half-cell configuration, the cathode demonstrates a remarkably high cycling stability of over 1300 cycles with a capacity fade of around 0.31 mAh g−1 per cycle. Further, a full RT-Na/S cell is fabricated with the NCS cathode and a hard-carbon anode. The full cell delivers a high discharge capacity of about 460 mAh g−1 and functions reversibly for over 500 cycles. The postmortem analysis of the cathode unravels that the as-developed cathode undergoes conversion reactions. We believe these findings are critical and may pave the way for the development of a safe, high-energy RT-Na/S battery.","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"9 8","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Interfacial Charge Transfer in Fluorinated Graphdiyne-Confined SnO2 Nanotube Arrays for High-Performance Sodium Storage 用于高性能钠存储的氟化石墨烯约束SnO2纳米管阵列的界面电荷转移

IF 4.5 4区材料科学

Batteries & Supercaps Pub Date : 2026-08-03 DOI: 10.1002/batt.70433

Keke Xie, Zhihui Zhang, Qian Chang, Changshui Huang, Feng He, Yuliang Li

{"title":"Interfacial Charge Transfer in Fluorinated Graphdiyne-Confined SnO2 Nanotube Arrays for High-Performance Sodium Storage","authors":"Keke Xie, Zhihui Zhang, Qian Chang, Changshui Huang, Feng He, Yuliang Li","doi":"10.1002/batt.70433","DOIUrl":"https://doi.org/10.1002/batt.70433","url":null,"abstract":"The charge transfer at heterointerface can significantly influence the sodium-storage kinetics and durability of metal–oxide anodes for sodium ion battery. Here, this study reported the in situ fabrication of FGDY@SnO2 nanotube arrays electrode directly on a copper foil current collector. The FGDY/SnO2 heterointerface composed by fluorinated graphdiyne (FGDY) confined tin dioxide (SnO2) nanotube arrays feature incomplete interfacial charge transfer, with electrons transferred from FGDY to SnO2, creating a locally modulated electronic environment that accelerates Na+ transport and interfacial redox kinetics. Combined experimental and theoretical calculations have systematically revealed the synergistic advantages of the advanced FGDY@SnO2 electrode in terms of improving electrochemical reaction kinetics, stabling solid–electrolyte interphase and electrode structure. Thus, the FGDY@SnO2 anodes show high rate-performance and stability. At a high current density of 5 A g−1, FGDY@SnO2 can achieve a sodium storage capacity of 563.8 mAh g−1. This work provides a material design paradigm for the fabrication of high-rate and long-cycle-life Sn-based anode toward advanced sodium-ion batteries.","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"9 8","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148783486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Investigating the Direct Use of Manganese-Rich Mixed-Olivine Cathode in Sodium Battery 富锰混合橄榄石阴极在钠电池中的直接应用研究

IF 4.5 4区材料科学

Batteries & Supercaps Pub Date : 2026-08-02 DOI: 10.1002/batt.70422

Luca Minnetti, Mariam Maisuradze, Asia Patriarchi, Min Li, Leonardo Sbrascini, Zulkarnaen Paputungan, Paolo Conti, Francesco Nobili, Marco Giorgetti

{"title":"Investigating the Direct Use of Manganese-Rich Mixed-Olivine Cathode in Sodium Battery","authors":"Luca Minnetti, Mariam Maisuradze, Asia Patriarchi, Min Li, Leonardo Sbrascini, Zulkarnaen Paputungan, Paolo Conti, Francesco Nobili, Marco Giorgetti","doi":"10.1002/batt.70422","DOIUrl":"https://doi.org/10.1002/batt.70422","url":null,"abstract":"LiMnxFe1−xPO4 olivine cathodes are widely used in Li-ion batteries for their high energy density and stability, but difficulties in synthesizing Na-based analogues limit their use in low-cost, sustainable sodium-ion battery (SIB) systems. Here, we show that synthesized LiMn0.6Fe0.4PO4 (LMFP) can be directly used in Na-metal cells without prior conversion, offering a new route to bridge Li- and Na-based batteries. LMFP was characterized structurally and electrochemically in Li cells, delivering up to 115 mAh g−1 at C/20. In Na|LMFP cells, a Li+/Na+ exchange drives transformation from olivine to triphylite. This activation is confirmed by cyclic voltammetry, galvanostatic cycling, ex situ and operando X-ray diffraction, and X-ray absorption spectroscopy. After activation, the cells exhibit remarkable stability and good rate capability, with a maximum capacity of 85 mAh g−1 at C/20. Furthermore, the compatibility of LMFP with safer battery configuration is demonstrated by using a poly(ethylene oxide)-sodium bis(trifluoromethansulfonyl)imide (PEO-NaTFSI)-based polymer electrolyte, enabling high stability and Coulombic efficiency, with initial gravimetric energy density of 220 Wh Kgcat−1 and energy efficiency between 85% and 90%. This work shows a route to use Li-based olivine cathodes in low-cost, sustainable Na-metal batteries, providing insight into ion exchange in polyanionic frameworks and enabling safer, cost-effective energy storage.","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"9 8","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/batt.70422","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Facile Synthesis of N-Doped Carbon-Encapsulated SnSe via Se-Induced Conversion of SnS2 for High-Performance Lithium-Ion Batteries 高性能锂离子电池用氮掺杂碳包封SnSe的硒诱导转化研究

IF 4.5 4区材料科学

Batteries & Supercaps Pub Date : 2026-07-31 DOI: 10.1002/batt.70426

Yating Chen, Wenling Pu, Mingyang Yang, Zhongqiu Luo, Dianpu Ma, Dong Feng

{"title":"Facile Synthesis of N-Doped Carbon-Encapsulated SnSe via Se-Induced Conversion of SnS2 for High-Performance Lithium-Ion Batteries","authors":"Yating Chen, Wenling Pu, Mingyang Yang, Zhongqiu Luo, Dianpu Ma, Dong Feng","doi":"10.1002/batt.70426","DOIUrl":"https://doi.org/10.1002/batt.70426","url":null,"abstract":"SnSe is a promising lithium-ion battery anode owing to its layered structure and high theoretical capacity, yet suffers from severe volume expansion and structural degradation. Herein, polyacrylonitrile-derived nitrogen-doped carbon-coated SnSe/C composites were synthesized via ball milling and calcination, with the Se/SnS2 molar ratio tuned to optimize the structure. Characterization confirms uniform SnSe dispersion within the carbon matrix and a stable core–shell architecture. Electrochemically, the composite achieves an initial Coulombic efficiency of 80.8% at 0.1 A g−1, delivers discharge capacities from 974.9 to 451.8 mAh g−1 over 0.1–5 A g−1(excellent rate capability), and retains 777.9 mAh g−1 after 500 cycles at 1 A g−1 (94.0% retention), demonstrating outstanding long-term cycling stability. Kinetic analysis reveals that the N-doped carbon layer substantially enhances Li+ diffusion and pseudocapacitive contribution. This work offers a facile and scalable route to high-performance Sn-based anodes.","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"9 8","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148617200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Preparation of Phosphorus-Doped Mesoporous Carbon and Its Dual-Function Energy Storage Performance in Supercapacitors and Sodium-Ion Batteries 掺磷介孔碳的制备及其在超级电容器和钠离子电池中的双功能储能性能

IF 4.5 4区材料科学

Batteries & Supercaps Pub Date : 2026-07-31 DOI: 10.1002/batt.70392

Zha-Xi Wan-Me, Cuo Zhuo-Ma, Ji Cai-Rang, Hai-Tao Zhang, Hui-Zhan Wen, Yu-Long Xie

{"title":"Preparation of Phosphorus-Doped Mesoporous Carbon and Its Dual-Function Energy Storage Performance in Supercapacitors and Sodium-Ion Batteries","authors":"Zha-Xi Wan-Me, Cuo Zhuo-Ma, Ji Cai-Rang, Hai-Tao Zhang, Hui-Zhan Wen, Yu-Long Xie","doi":"10.1002/batt.70392","DOIUrl":"https://doi.org/10.1002/batt.70392","url":null,"abstract":"Synthesizing mesoporous carbon with a suitable pore size distribution and high specific surface area remains challenging. In this work, phosphorus-doped mesoporous carbon (PMC) was prepared via solvent-induced self-assembly technology, using phenolic resin as the carbon precursor and phytic acid as the phosphorus source. By adjusting the phosphorus content, PMC-0.1 achieved a high specific surface area of up to 1341.8 m2 g−1 and exhibited a hierarchical micro–mesoporous structure. The defects and vacancies induced by heteroatoms provided abundant active sites for electrochemical reactions. Electrochemical measurements showed that PMC-0.1 exhibited a specific capacitance of 315.5 F g−1 at 0.5 A g−1. The assembled symmetric supercapacitor maintained a 96.4% capacitance retention after 5000 cycles and achieved an energy density of 7.9 Wh kg−1. As an anode for sodium-ion batteries, it demonstrated a discharge capacity of 226 mAh g−1 at 50 mA g−1, showing excellent electrochemical performance. This phosphorus-doping strategy enhanced the electrochemical performance of carbon materials, providing a scalable preparation route for advanced energy storage electrodes.","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"9 8","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148616753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Strategies for Suppressing Crystallinity in Poly(ethylene oxide) (PEO)-Based Solid Polymer Electrolytes to Enhance Ion Transport: A Mini-Review 抑制聚环氧乙烷（PEO）基固体聚合物电解质结晶度以增强离子传输的策略综述

IF 4.5 4区材料科学

Batteries & Supercaps Pub Date : 2026-07-30 DOI: 10.1002/batt.70421

Guangze Chu, Xian-Ao Li, Zhen Chen

{"title":"Strategies for Suppressing Crystallinity in Poly(ethylene oxide) (PEO)-Based Solid Polymer Electrolytes to Enhance Ion Transport: A Mini-Review","authors":"Guangze Chu, Xian-Ao Li, Zhen Chen","doi":"10.1002/batt.70421","DOIUrl":"https://doi.org/10.1002/batt.70421","url":null,"abstract":"PEO-based solid polymer electrolytes (SPEs) are among the most intensively studied electrolyte systems for solid-state lithium batteries because of their strong salt-solvation capability, good processability, and favorable interfacial compatibility. Their practical application at ambient temperature, however, remains limited by the pronounced crystallization tendency of PEO, which suppresses segmental motion and therefore restricts Li+ transport. This mini-review summarizes recent strategies for reducing crystallinity in PEO-based SPEs and discusses how these strategies influence polymer dynamics and ionic conduction. Representative approaches, including salt regulation, polymer blending and copolymerization, additive/plasticizer incorporation, filler-based composite design, and cross-linking/network construction, are comparatively examined. In general, lowering crystallinity, enlarging the amorphous phase, and enhancing segmental mobility improve ionic conductivity, although these gains are often accompanied by compromises in mechanical robustness, dimensional stability, interfacial compatibility, or electrochemical stability. The available literature therefore indicates that suppressing crystallinity is necessary but not sufficient for practical electrolyte design. Future work should integrate anticrystallization strategies with mechanical reinforcement, interfacial stabilization, and more realistic battery-level evaluation to accelerate the development of high-performance PEO-based electrolytes for solid-state lithium batteries.","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"9 8","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148617276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Phase and Chemical Segregation in Cobalt-Free Lithium-Rich Cathodes Doped With Magnesium 掺镁无钴富锂阴极的物相和化学偏析

IF 4.5 4区材料科学

Batteries & Supercaps Pub Date : 2026-07-30 DOI: 10.1002/batt.70424

Jordi Jacas Biendicho, Kunkanadu Rajappa Prakasha, Dries De Sloovere, Satish Kumar Mylavarapu, An Hardy, Leif Olav Jøsang, Sergio Ramos, Maximiliano Merlo, Xingqi Chang, Jekabs Grins, Gunnar Svensson

{"title":"Phase and Chemical Segregation in Cobalt-Free Lithium-Rich Cathodes Doped With Magnesium","authors":"Jordi Jacas Biendicho, Kunkanadu Rajappa Prakasha, Dries De Sloovere, Satish Kumar Mylavarapu, An Hardy, Leif Olav Jøsang, Sergio Ramos, Maximiliano Merlo, Xingqi Chang, Jekabs Grins, Gunnar Svensson","doi":"10.1002/batt.70424","DOIUrl":"https://doi.org/10.1002/batt.70424","url":null,"abstract":"Cobalt-free, lithium-rich composites are interesting cathodes for generation 3b Li-ion batteries due to their high discharge capacity and improved sustainability with respect to state-of-the-art NMC oxides, which are commonly doped with magnesium to stabilize their layered structure. In this article, the role of the magnesium dopant, including its solubility, chemical distribution, and phase evolution, has been characterized and optimized in the context of nanoscale composites. By combining XRD, XPS, TEM–EDX, and coin cell testing, a physically and chemically segregated model for Li1.21-2xMgxNi0.16Mn0.62O2 (x = 0, 0.01, 0.03, 0.05, and 0.1) as a function of Mg dopant level is presented, assuming an ionic doping compensation mechanism. The best-performing cathode, i.e., Li1.20Mg0.01Ni0.16Mn0.62O2, displays a homogeneous distribution of magnesium at the bulk particle level with an incipient phase-segregated Ni-rich structure at the particle edge, resulting in a discharge capacity of 187 mAhg−1 at 0.2C and an enhanced performance compared to undoped and x≥ 0.03 samples. The structural and chemical results presented herein highlight the complex engineering required to achieve a specific phase structure and chemical (dopant) distribution of Li-rich nanoscale composites.","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"9 8","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148617062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Interfacial Engineering of LiNiO2 via an Atomic Layer Deposition-Deposited MgxZnyOz Layer for Enhanced Electrochemical Performance 通过原子层沉积LiNiO2的界面工程-沉积MgxZnyOz层以提高电化学性能

IF 4.5 4区材料科学

Batteries & Supercaps Pub Date : 2026-07-29 DOI: 10.1002/batt.70423

Orly Aminov, Sankalpita Chakrabarty, Michal Ejgenberg, Gal Radovsky, Shaul Michaelson, Ayan Mukherjee, Malachi Noked

{"title":"Interfacial Engineering of LiNiO2 via an Atomic Layer Deposition-Deposited MgxZnyOz Layer for Enhanced Electrochemical Performance","authors":"Orly Aminov, Sankalpita Chakrabarty, Michal Ejgenberg, Gal Radovsky, Shaul Michaelson, Ayan Mukherjee, Malachi Noked","doi":"10.1002/batt.70423","DOIUrl":"https://doi.org/10.1002/batt.70423","url":null,"abstract":"Lithium nickel oxide (LNO) is a promising cathode material for next-generation high-energy-density lithium-ion batteries owing to its high specific capacity and cost-effectiveness. However, LNO cathodes suffer from significant interfacial instability due to structural issues, cation mixing, and aggressive reactions with the electrolyte, which leads to rapid capacity loss. Herein, we report a surface-stabilization strategy employing atomic layer deposition (ALD) to fabricate an ultrathin (ca. 4 nm), conformal dual-metal oxide (Mg and Zn) MgxZnyOz (MZO) protective layer on model LNO particles. Comprehensive characterization, including time-of-flight secondary-ion mass spectrometry and scanning transmission electron microscopy–energy-dispersive X-ray spectroscopy, reveals a unique chemical distribution: the Zn species remain localized at the surface, whereas Mg partially diffuses into the superstructure. Electrochemical experiments demonstrate that the MZO-coated LNO particles exhibit significantly enhanced stability, achieving a ca. 22% improvement in capacity retention after 100 cycles over the pristine LNO, alongside a reduction in voltage hysteresis and an increase in round-trip efficiency. These findings indicate that ALD-derived dual-metal surface engineering can improve the early-stage interfacial stability of cobalt-free LNO cathodes.","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"9 8","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/batt.70423","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148616502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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