ACS Applied Materials & Interfaces
·
2018
·
IF 8.097
Tingting Qin,Xiaoyu Zhang,Dong Wang,Ting Deng,Haoxiang Wang,Xiaofei Liu,Xiaoyuan Shi,Zhengming Li,Hong Chen,Xiangmin Meng,Wei Zhang,Weitao Zheng
Metal oxides as electrode materials are of great potential for rechargeable aqueous batteries. However, they suffer from inferior cycle stability and rate capability because of poor electronic and ionic conductivities. Herein, taking vertically orientated Bi2O3 nanoflakes on Ti substrates as examples, we find that the δ-Bi2O3 electrode with plenty of positively charged oxygen defects show remarkably higher specific capacity (264 mA h g–1) and far superior rate capability than that of α-Bi2O3 with less oxygen vacancies. Through pinpointing the existence form and the role of oxygen vacancies within the electrochemical processes, we demonstrate that oxygen vacancies in δ-Bi2O3 can not only promote electrical conductivity but also serve as central entrepots collecting OH– groups via electrostatic force effect, which has boosted the oxidation reaction and enhanced the electrochemical properties. Our work merits an excellent Bi2O3 negative electrode material via giving full play to the role of oxygen vacancies in electrochemical energy storage.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
PubMed
高影响因子
Nanomaterials
·
2022
·Vol. 12
·期 15
·2530
·
IF 5.719
Xiaoping Tan,Gaoli Guo,Kaidi Wang,Huang Zhang
Aqueous zinc-ion batteries offer the greatest promise as an alternative technology for low-cost and high-safety energy storage. However, the development of high-performance cathode materials and their compatibility with aqueous electrolytes are major obstacles to their practical applications. Herein, we report the synthesis of orthorhombic V2O5·nH2O nanorods as cathodes for aqueous zinc batteries. As a result, the electrode delivers a reversible capacity as high as 320 mAh g−1at 1.0 A g−1and long-term cycling stability in a wide window of 0.2 to 1.8 V using a mild ZnSO4aqueous electrolyte. The superior performance can be attributed to the improved stability of materials, inhibited electrolyte decomposition and facilitated charge transfer kinetics of such materials for aqueous zinc storage. Furthermore, a full cell using microsized Zn powder as an anode within capacity-balancing design exhibits high capacity and stable cycling performance, proving the feasibility of these materials for practical application.Keywords:zinc batteries;V2O5·nH2O nanorods;cathode materials;Zn anode;aqueous batteries
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Joule
·
2025
·
IF 35.4
Xinran Li,Tengsheng Zhang,Gaoyang Li,Boya Wang,Hongrun Jin,Yanyan Zhang,Xin Liu,Yutong Feng,Yifeng Wang,Wanhai Zhou,Jingwen Zhao,Wei Li,Hongjin Fan,Dongyuan Zhao,Dongliang Chao
Aqueous manganese ion batteries (AMIBs) have recently garnered attention due to the abundance of manganese and their intrinsic safety. However, the development of current AMIBs remains plagued by restrictive actual capacities. Herein, we propose an energetic Mn 2+ -S redox electrochemistry with a solid-liquid-solid redox pathway. Operando X-ray absorption fine spectroscopy and synchrotron X-ray diffraction unveil the Mn 2+ storage mechanism of S 8 ↔ MnS 4 ↔ MnS 2 ↔ MnS. A capacity of 1,242 mAh g −1 with a high sulfur utilization of 74.3 wt % can be achieved, surpassing the capacity limitations of previously reported AMIBs. As a proof of concept, a system intergrating the S/MnS and MnO 2 /Mn 2+ redox couples delivers an energy density of 396 Wh kg S+MnO2 −1 and cycles for 800 cycles stably at 4 A g −1 . We have elucidated the mechanism underlying the redox of Mn 2+ -S and may open an avenue for the next high-energy AMIBs.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Energy Materials
·
2020
·
IF 4.473
Jiaxing Ouyang,Yingming Wang,Nian Wu,Gongwei Wang,Li Xiao,Juntao Lu,Lin Zhuang
Metallic tin (Sn) has always been considered as an anode candidate for nonaqueous lithium-ion batteries (LIBs). Nevertheless, there were hardly any attempts to use Sn as an anode material in aqueous batteries. Although Sn possesses relatively high specific capacity (451.54 mAh/g, two-electron transfer reaction), mild electrode potential (−0.1375 V vs the standard hydrogen electrode, Sn2+ + 2e– = Sn), high hydrogen overpotential, and environmental friendliness, it also suffers from bad reversibility and low Coulombic efficiency (CE) in common aqueous electrolytes. In this work, a dendrite-free Sn anode with highly improved reversibility in an aqueous electrolyte was realized using a type of “water-in-salt” electrolyte (1 m Sn(OTf)2 + 20 m LiTFSI). The results of Fourier transform infrared (FTIR) spectra and density functional theory (DFT) calculations have verified the significant impact of highly concentrated LiTFSI salt on Sn2+ hydrolysis, which is the key factor in improving the reversibility of the Sn anode and suppressing the dendrite formation. A Sn/LiFePO4 cell applying this electrolyte was acquired with a discharge plateau at around 0.6 V. In the cyclability test, the Sn anode exhibited a stable discharge capacity of more than 107 mAh/g with a Coulombic efficiency (CE) of 95% for 35 cycles (0.2C rate).
研究领域:
电化学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Nano
·
2020
·
IF 14.588
Xinliang Li,Mian Li,Qi Yang,Hongfei Li,Hailong Xu,Zhifang Chai,Ke Chen,Zhuoxin Liu,Zijie Tang,Longtao Ma,Zhaodong Huang,Binbin Dong,Xiaowei Yin,Qing Huang,Chunyi Zhi
Nonbattery behavior related phase transition of electrodes is usually not favorable for any batteries because it results in performance degradation at all times. Here, we demonstrate a zinc hybrid-ion battery (ZHIB) with an unusual capacity enhancement even within 18 000 cycles by employing V2CTX MXene as the cathode, enormously differing from all reported counterparts with capacity degradation initiated within hundreds of cycles. The dominated mechanisms are determined to be MXene delamination and an unexpected phase transition during cycling. Both the original cathode and secondary derivative contribute to capacity simultaneously, resulting in the unusual capacity enhancement. Consequently, the specific capacity of 508 mAh g–1 (highest for all reported aqueous zinc-ion batteries) and high energy density of 386.2 Wh kg–1 are realized. Also, the quasi-solid-state batteries fabricated can output stably at −20 °C and in bending, twisting, stabbing, and cutting conditions. Our work brings an effective approach, that is, utilizing “unstable” electrode materials, which should usually be avoided, to achieve continuously enhanced performance of a battery. The idea to use both original and secondary materials for energy storage may be developed to be a general method to achieve extraordinary cycling stability of batteries.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Minglong He,Junjie Shi,Anyu Zhang,Yuying Xu,Qing Wu,Li Wen,Qi Hong,Yang Yue,Siliang Wang
The plentiful and renewable nature of iodine confers metal-iodine batteries (MIBs) a benefit in the advancement of energy storage technology with high energy and power densities. However, dendrite growth and susceptibility to electrolyte corrosion not only result in low anode utilization but also severely affect battery stability. This paper introduces an ammonium-iodine batteries (AIBs) structure that leverages the inertness of organic materials to iodide ions, thereby avoiding the electrolyte corrosion issues commonly found in the metal anodes of traditional MIBs. Additionally, the use of a non-metallic anode eliminates the impact of dendrite growth on battery stability and increases the anode utilization rate. Because of these features, AIBs attain a high specific capacity of 242mAh g −1 and preserve an 80.7 % capacity retention rate following approximately 2000 cycles at a current density of 10 A g −1 . We have also developed micro batteries and pouch cells to verify the feasibility of the structure. This work provides an innovative strategy for iodine batteries energy storage system.
研究领域:
能源存储技术
·
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Materials Today Energy
·
2019
·
IF 0
Lijing Yan,Xiaomin Zeng,Zeheng Li,Xiangjuan Meng,Di Wei,Tiefeng Liu,Min Ling,Zhan Lin,Chengdu Liang
Graphite was reported by J.O. Besenhard as the reservoir for alkali ions in 1974. The booming period of lithium-ion batteries arrived after the graphite patent issued by Sony Co. in 1991. The flourish development is due to the address of lithium dendrite issue through the substitution from lithium metal to graphite. Currently, the zinc dendrite formation in zinc-ion batteries is one of the major issues. Herein, we fabricate a zinc-ion full battery by replacing zinc metal with organic quinone , which is a zinc dendrite free material. This novel zinc-ion full battery exhibits excellent cycling stability with capacity retention of 94.4% and high specific capacity of 189.5 mA h g −1 after 500 cycles. Ascribed to the low cost of quinone and long cycle performance, this work could inaugurate a new era for rechargeable aqueous zinc-ion batteries.
研究领域:
材料科学
·
能源存储技术
✓ 已验证
DOI
ELECTROCHIMICA ACTA
·
2018
·
IF 5.116
Nan Qiu,Hong Chen,Zhaoming Yang,Sen Sun,Yuan Wang
A highly reversible aqueous rechargeable battery system is assembled by using a Zn anode, a room-temperature synthesized MnO 2 -birnessite cathode and a mild ZnSO 4 -based aqueous electrolyte with MnSO 4 as an additive. Structural analysis reveal that MnO 2 -birnessite undergoes a structural transformation to poorly crystalline MnO 2 . It offers an operating voltage of 1.39 V, an energy density of 364 Wh kg −1 (cathode only) at 200 mA g −1 and shows a capacity retention of 100% over 400 cycles at 500 mA g −1 . This low-cost battery system is a promising candidate for large-scale energy storage.
研究领域:
材料科学
·
电化学
·
储能技术
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Xiao-Luan Xie,Song Wang,Da-Wei Gu,Zhi-Yuan Yao,Yang Zou,Xiao-Ming Ren
Heterostructure engineering and oxygen vacancy engineering are the most promising modification strategies to reinforce the Zn2+ ion storage of vanadium oxides. Herein, a rare mixed-dimensional material (VOx), composed of V2O5 (2D), V3O7 (3D), and V6O13 (3D) heterostructures, rich in oxygen vacancies, was synthesized via thermal decomposition of layered ammonium vanadate. The VOx cathode provides an exceptional discharge capacity (411 mA h g–1 at 0.1 A g–1) and superior cycling stability (the capacity retention remains close to 100% after 800 cycles at 2 A g–1) for aqueous zinc-ion batteries (AZIBs). Ex situ characterizations confirm that the byproduct Zn3V2O7(OH)2·nH2O is generated/decomposed during discharge/charge processes. Furthermore, VOx demonstrates reversible intercalation/deintercalation of H+/Zn2+ ions, enabling efficient energy storage. Remarkably, a reversible crystal-to-amorphous transformation in the V2O5 phase of VOx during charge–discharge was observed. This investigation reveals that mixed-dimensional heterostructured vanadium oxide, with abundant oxygen vacancies, serves as a highly promising electrode material for AZIBs, further advancing the comprehension of the storage mechanism within vanadium-based cathode materials.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nano-Micro Letters
·
2025
·Vol. 17
·期 1
·1-17
·
IF 36.3
Mai Zhaoxu,Lin Yuexing,Sun Jingying,Wang Chenhui,Yang Gongzheng,Wang Chengxin
Cationic benzyltriethylammonium chloride enables high (002)-textured Zn via selective adsorption, outperforming prior additives.
In situ homogenization converts commercial Zn foil into highly (002)-textured Zn anodes without pretreatments.
Cl − -induced pitting corrosion mechanism uncovered, leading to a breakthrough in performance limits of Zn anodes.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Yujing Liu,Qi Liu,Xin Zhou,Xiaohui Liu,Mingyue Li,Zhongqiu Liu,Anguo Ying
Improving the voltage window of aqueous supercapacitors beyond 2.5 V without diminishing their capacitance performance is a big challenge to achieve excellent energy density because of the undesirable water decomposition. Herein, this study developed a novel vanadium phosphate (VPO) of the VO(PO 3 ) 2 aerogel as the electrode to enlarge the device voltage, which could effectively raise HER/OER overpotentials and thus achieving a stable wide electrochemical window of −1 ∼ 1 V (vs. SCE) with remarkably improved capacitance. The VPO microstructure is organized by nanowire-stacked lamellar bricks via engineering a controllable phase-transformation using the V-P-citric acid-aerogel as the precursor. Examined as the supercapacitor electrode, in-situ X-ray powder diffraction analysis uncovers that the VO(PO 3 ) 2 undergoes a reversible phase-transformation reaction associated with Na + intercalation/de-intercalation in Na 2 SO 4 and a typical redox pseudocapacitance process in KOH. For the first time, a 2.8 V symmetric aqueous supercapacitor was further assembled with an energy density of 123.1 Wh kg −1 at the power density of 580 W kg −1 , which is much superior to those of all reported V-base supercapacitors. The underlying mechanisms of the VO(PO 3 ) 2 on ultrahigh voltage window and charge storage are further elucidated, which provide the fundamental guidance for structuring VPO-based electrodes used for commercial energy storage devices.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
ADVANCED MATERIALS
·
2021
·Vol. 33
·期 15
·2008095
·
IF 30.849
Yanxin Yao,Zengyue Wang,Zhejun Li,Yi-Chun Lu
Metal-based aqueous redox flow batteries (ARFBs) such as zinc-based ARFBs have attracted remarkable attention owing to their intrinsic high energy density. However, severe dendrite issues limit their efficiency and lifespan. Here an aqueous metal anode operating between Sn(OH) 6 2− (stannate) and metal Sn is presented, providing a reversible four-electron transfer at −0.921 V vs standard hydrogen electrode. In strong contrast to severe Zn dendrites, the Sn(OH) 6 2− /Sn electrode shows smooth and dendrite-free morphology, which can be attributed to its intrinsic low-surface-energy anisotropy which facilitates isotropic crystal growth of Sn metal. By coupling with iodide/tri-iodide (I − /I 3 − ), the static Sn–I cell demonstrates a stable cycling for 500 cycles (more than 2 months). In contrast, the state-of-the-art Zn anode suffers from serious dendrites and lasts less than 45 cycles (190 h) in Zn–I cells. A stable continuous flow cycling of Sn–I cell achieves a Sn areal capacity of 73.07 mAh cm −2 at an average discharge voltage of 1.3 V for 350 h. The alkaline Sn electrode demonstrates dendrite-free morphology and superior performance in cycle life and areal capacity compared to state-of-the-art Zn metal anodes, offering a promising metal anode for high-energy ARFBs and other metal-based rechargeable aqueous batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）