Nature Communications
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2023
·Vol. 14
·期 1
·1-11
·
IF 16.6
Yu Zhijing,Wang Wei,Zhu Yong,Song Wei-Li,Huang Zheng,Wang Zhe,Jiao Shuqiang
Achieving high energy density and long cycling life simultaneously remains the most critical challenge for aluminum-ion batteries (AIBs), especially for high-capacity conversion-type positive electrodes suffering from shuttle effect in strongly acidic electrolytes. Herein, we develop a layered quasi-solid AIBs system with double reaction zones (DRZs, Zone 1 and Zone 2) to address such issues. Zone 1 is designed to accelerate reaction kinetics by improving wetting ability of quasi-solid electrolyte to active materials. A composite three-dimensional conductive framework (Zone 2) interwoven by gel network for ion conduction and carbon nanotube network as electronic conductor, can fix the active materials dissolved from Zone 1 to allow for continuing electrochemical reactions. Therefore, a maximum electron transfer is realized for the conversion-type mateials in DRZs, and an ultrahigh capacity (400 mAh g −1 ) and an ultralong cycling life (4000 cycles) are achieved. Such strategy provides a new perspective for constructing high-energy-density and long-life AIBs.
研究领域:
材料科学
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电化学
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产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry A
·
2024
·Vol. 12
·期 38
·26076-26082
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IF 10.7
Haifeng Yu,Erdong Zhang,Jinxun Yu,Songmin Yu,Yaoguo Fang,Ling Chen,Hao Jiang,Chunzhong Li
Olivine-type LiMnxFe1−xPO4 (LMFP, 0 < x < 1) is poised to supplant LiFePO4 cathode materials with a ∼20% energy-density increase for Li-ion batteries (LIBs). However, its intrinsic low conductivities and MnO6 octahedral unit-cell Jahn–Teller distortion limit its power capability and cycling life. Herein, we report a Mg/Ni dual-doped and carbon-coated LMFP micro-sized secondary sphere with greatly enhanced reaction kinetics and superior structure stability. Ni2+ reduces the average valence state of Mn ions to alleviate Jahn–Teller distortion by participating in charge compensation during charging while improving electronic conductivity together with carbon coating. Mg2+ with a smaller ion radius (65 pm) significantly widens the Li-ion transfer channel by extending Li–O bonds. The as-obtained LMFP cathodes increase reversible specific capacity by about 2.4 times at 5C compared with a pristine sample, reaching 115 mA h g−1. In a pouch-type full cell, 92% of its initial capacity is still maintained after 2000 cycles at 1C, demonstrating its attractive potential for practical application in high-power and long-life LIBs.
研究领域:
材料科学
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电化学
✓ 已验证
DOI
高影响因子
Batteries & Supercaps
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2025
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IF 4.7
Yu Xie,Zhicong Shi,Dafeng Wei,Junqiao Huang,Zhichuan Shen,Mengxue Wu,Xuan Ye,Zekai Chen,Song Xiao,Jianwei Chen,Abdullah N. Alodhayb,Ping Chen
The advancement of solid SMBs has been significantly impeded by the low ionic conductivity of solid electrolytes and poor electrode compatibility. To overcome these challenges, this study employs an in-situ polymerization method to synthesize a gel polymer electrolyte, by incorporating 3-(Trimethoxysilyl)propyl methacrylate (TPM) into the polymer network. When 5% TPM is added, the room-temperature ionic conductivity and sodium-ion transference number of GPE are notably enhanced to 4.54×10-2 S cm-1 and 0.58, respectively, with an oxidation voltage reaching 5.05 V. Due to the formation of a dense SEI film rich in F and Cl on the surface of sodium metal, the sodium symmetric batteries using GPE-TPM-5 can work stably for more than 3200h at the current density of 0.1 mA·cm-2. The NVP|GPE-TPM-5|Na batteries exhibit excellent cycle life of over 15000 cycles at a rate of 10C, with a capacity retention rate of 91%. It also demonstrates more than 800 cycles with a capacity retention rate of 94% at -20 °C and 1C. This research provides a new approach for preparing gel polymer electrolytes for SMBs with superior long-term cycling performance at a high rate and a low temperature.
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
高影响因子
Inorganic Chemistry Frontiers
·
2025
·
IF 6.4
Mengqi Man,Yong Guo,Tianran Hu,Ying Sun,Aikai Yang,Xiqing Chen,Xingchao Wang
The preparation of SiOx materials that exhibit enduring stable cycling performance and high initial coulombic efficiency (ICE) through cost-effective methods remains a substantial hurdle. Herein, a hybrid carbon-coated SiO-20/G@TMA composite was synthesized using an integrated strategy that combines high-energy ball milling and high-temperature carbonization, employing graphene (G) and trimeric acid (TMA) as carbon sources. The three-dimensional crosslinked conductive network, formed by the mechanically flexible graphene and the carbon-rigid TMA, induces the generation of a LiF-rich SEI film. This film reduces interfacial side reactions and improves the ICE to 74.2%. Furthermore, the SiO-20/G@TMA electrode, characterized by a rigid–flexible hybrid structure, demonstrates excellent capacity retention and impressive rate performance over extended cycling periods. The discharge capacity of the SiO-20/G@TMA anode reaches 848.3 mA h g−1 at a current density of 0.5 A g−1, with a reversible capacity of 77% (about 649.1 mA h g−1) maintained after 600 cycles. When paired with a LiNi0.8Co0.1Mn0.1O2 (NCM811) cathode, the SiO-20/G@TMA anode achieves a reversible capacity of 140.0 mA h g−1 at the current density of 0.2 A g−1. After 100 cycles, the capacity retention rate is 85% and the energy density is 474.7 Wh kg−1.
研究领域:
材料科学
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能源存储技术
✓ 已验证
产品关联
DOI
高影响因子
DIAMOND AND RELATED MATERIALS
·
2022
·
IF 3.806
Jiwei Xie,Guijing Liu,Jia Sun,Rundou Zheng,Wenwen Zhao,Tongtong Chu,He Lin,Yanbin Xu,Shanmin Gao,Zhuyin Sui
MnO 2 as the cathode material of Zinc-ion batteries (ZIBs) has attracted great attention. In order to further improve the performance of ZIBs, MnO 2 hollow nanorobs and carbon nanotubes (CNTs) are compounded to obtain α-MnO 2 /CNTs nanocomposites in which robs and tubes are entangled with each other and present the cross-linked reticular structure. This structure of α-MnO 2 /CNTs electrode is obtained through hydrothermal strategy and provides large space for the volume variation of MnO 2 during the charge and discharge process. The α-MnO 2 /CNTs composite displays an excellent initial discharge capacity of 302 mAh·g −1 at 100 mA·g −1 , and keeps 116 mAh·g −1 at 2000 mA·g −1 (78.4% retention after 2000 cycles). This composite provides a new way for the further application of ZIBs.
研究领域:
材料科学
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电化学
✓ 已验证
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2021
·
IF 6.901
Xiao Zheng,Fangfang Zhao,Lei Ma,Ruixian Tang,Yanru Dong,Guolong Kong,Yu Zhang,Sulin Niu,Gen Tang,Yue Wang,Aimin Pang,Wei Li,Liangming Wei
Aluminum batteries have received extensive research because of the safety, abundance and high capacity of Al anode. Most previous works are concentrated on improving the specific capacity of the cathodes, while other important issues such as cheap cathode-electrolyte system and high areal active material loading have often been overlooked. This paper reports that cheap graphite paper (GP) coupled with low price AlCl 3 /Et 3 NHCl ionic liquid (IL) electrolyte can form a practical Al dual-ion battery (ADIB). By adjusting the AlCl 3 content in IL, the energy storage of GP with high-loading is improved. The ADIB exhibits 71 mAh g −1 at 200 mA g −1 with a loading of 15.16 mg cm −2 , which is almost unattenuated over 1400 cycles. The GP cathode presents 47 mAh g −1 at 150 mA g −1 when the loading increased to 30.21 mg cm −2 . Even at an ultrahigh loading of 46.35 mg cm −2 , the cathode can still achieve 75 mAh g −1 (3.5 mAh cm −2 ) at 40 mA g −1 for over 500 stable cycles. The high capacity is contributed by a self-activating process of AlCl 4 − intercalation, which is closer to the diffusion-controlled battery behavior. The GPs simultaneously exhibit high areal capacity, energy/power density and long-life cycling performance which demonstrates their wide commercial prospects.
研究领域:
材料科学
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电化学
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能量存储
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
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2018
·Vol. 42
·期 16
·13726-13731
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IF 3.201
Rui Xue,Hao Guo,Liguo Yue,Ting Wang,Mingyue Wang,Qi Li,Hui Liu,Wu Yang
A new covalent organic framework material (NWNU-COF-1) linked with –NH– bonds is synthesized by the condensation reaction of melamine and 2,4,6-trichloro-1,3,5-triazine and its structure and properties are characterized by Fourier transform infrared (FT-IR) spectroscopy, powder X-ray diffraction (XRD), thermogravimetric analysis (TGA), N2 adsorption–desorption, X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). The BET specific surface area of NWNU-COF-1 is 301.149 m2 g−1, and the pore size is about 1.41 nm. The preparation is also simple and cheap. This material exhibits a significant pseudocapacitance characteristic in a 6 M potassium hydroxide electrolyte, and the highest specific capacitance value of 155.38 F g−1 at 0.25 A g−1 current density in a three electrode configuration. This COF also demonstrates about 100% capacitance retention after 20 000 galvanostatic charge–discharge cycles, which is equal, even better compared with the COF materials reported previously, the nano/mesoporous carbon materials and even nitrogen doped carbons.
研究领域:
材料科学
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能源科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
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2018
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IF 8.097
Hui Peng,Rui Zhao,Jing Liang,Sihan Wang,Fei Wang,Jiezi Zhou,Guofu Ma,Ziqiang Lei
Two-dimensional conducting polymers nanosheet prepared by the soft-template-assisted technique in aqueous system still has rarely been reported, especially the formation of nanosheets structure by protonic acid assisted controlling the stability of the micelles method. Herein, a facile, one-step, bottom-up approach is developed to synthesize novel and uniform conductive poly(4-aminodiphenylamine) (P(4-ADPA)) nanosheets with controlled morphology via regulating the proton acid concentration during the self-assembly of surfactant lamellar micelles. The as-produced conducting P(4-ADPA) demonstrates a integral nanoframework structure with uniform and intertwined nanosheets, resulting in a satisfactory specific capacitance of 395 F g–1 at the current density of 0.5 A g–1. Furthermore, another pseudocapacitor electrode material, urchin-like W18O49, is selected as a negative electrode material to fabricate a novel P(4-ADPA)//W18O49 asymmetric supercapacitor, which extends the operating voltage window up to 1.5 V, provides an energy density of 24.4 W h kg–1 at a high power density of 1491 W kg–1, and possesses superlong-life of 92% capacitance retention after 10 000 cycles. Therefore, the present work will propose an affordable strategy to design novel conducting polymer nanosheets and open up the possibility of cheap conductive polymers to meet the demands of energy storage.
研究领域:
材料科学
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能源工程
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产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Zhen Zhang,Yu-e Shi,Yibo Liu,Yifei Xing,Ding Yi,Zhenguang Wang,Dongpeng Yan
Efficient blue and deep-blue room temperature phosphorescence (RTP) is still a great challenge due to the difficulties in populating and stabilizing the excitons in relatively high-lying states. Inorganic boric acid , lacking conventional luminophores in its structure, is generally not considered as efficient material for RTP. In this work, we illustrated how to make deep-blue RTP materials with both high emission efficiency (phosphorescence quantum yield of 45%) and an ultralong lifetime (2.9 s) through a heat treatment strategy. Moreover, a through-space conjugation assisted energy transfer and rigidification mechanism was proposed for explaining the simultaneous promoting of emission lifetime and efficiency. In addition, the deep-blue RTP materials displayed excellent stability against restrict external environments (such as high concentration acid, alkali, oxidant, reductant and organic solvents). Benefiting from these high-performance RTP materials, multi-level information encryption under harsh conditions was demonstrated. The research results thus provide a universal principle and strategy for designing stable and efficient blue RTP materials, which also extend their applications in various environments.
研究领域:
材料科学
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光学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Physical Chemistry C
·
2022
·
IF 4.177
Wen Liu,Peng Guo,Tianyu Zhang,Xiawei Ying,Fengling Zhou,Xinyi Zhang
Due to its high theoretical energy density, good safety, and availability, as well as low cost, the rechargeable aqueous zinc-ion battery is considered one of the most promising systems for the next generation of energy storage devices. However, due to the strong electrostatic interaction between Zn2+ and host and the proton/Zn2+ cointercalation in aqueous media, the development of a zinc-ion battery with high capacity and a long lifetime remains an uphill task. In this work, a novel electrode–electrolyte design is employed by using a ZIF/Zn heterostructure as a microporous host matrix and an organic zinc trifluoromethanesulfonate as the constituent of the electrolyte. A zinc-ion battery based on the ZIF/Zn heterostructure anode delivers a specific capacity of 149 mAh g–1 and maintains a retention as high as 80% after 330 cycles at 1 A g–1. The synergistic effect of microstructural ZIF and hydrophobic trifluoromethanesulfonate anions creates a unique electrode–electrolyte interface, which suppresses the formation of dendrites and self-discharge of the Zn anode, resulting in the long cycling stability of the aqueous zinc-ion batteries.
研究领域:
材料科学
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电化学
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能源存储
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Zehui Wang,Daijie Deng,Huan Wang,Suqin Wu,Linhua Zhu,Li Xu,Henan Li
Nitrogen-coordinated manganese atoms on carbon materials denoted as Mn N C, serve as the highly active non-precious metal electrocatalysts for oxygen reduction reaction (ORR) in zinc-air batteries (ZABs). Nonetheless, a significant challenge arises from the tendency of Mn atoms to aggregate during heat treatment, thereby compromising ORR performance in ZABs. In this work, the molecular assembly strategy based on the hydrogen bond interaction was employed to fabricate the Mn N C electrocatalyst . This approach promotes the dispersion of Mn atoms, creating abundant Mn–N x active sites. Furthermore, the resulting three-dimensional porous nanostructure, formed by molecular assembly, significantly enhances accessibility to the Mn–N x active sites. The porous nanostructure not only shortens the diffusion path of reactants and charges but also improves mass transfer. The Mn N C exhibits impressive ORR catalytic performance with a half-wave potential of 0.90 V (vs. RHE). The liquid-type ZAB based on Mn N C displays a high specific capacity of 816.6 mAh/g and an extended charge–discharge cycle life of 1000 h. Quasi-solid-state ZAB based on Mn N C can operate stably for 24 h. This work presents an effective strategy to synthesize transition metal-nitrogen-carbon (M N C) electrocatalysts tailored for long-life zinc-air battery.
研究领域:
材料科学
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能源化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF LUMINESCENCE
·
2021
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IF 3.599
Shenghui Han,Gang Lian,Xu Zhang,Zhaozhen Cao,Qilong Wang,Deliang Cui,Ching-Ping Wong
Metal-free pure organic room-temperature phosphorescence (ORTP) materials have attracted widespread attention in the fields of information security, optoelectronics and displays. Hydrogen-bonded organic frameworks (HOFs) can potentially stabilize the triplet excitons and achieve highly efficient RTP. However, it is still a tough challenge to prepare HOFs with ultra-long lifetime RTP. Herein, we report a facile and green hydrothermal method to synthesize rigid melamine-cyanuric acid (M-CA) supramolecular frameworks by a melamine hydrothermal reaction. The luminescence properties of M-CA supramolecular HOFs have been explored under ambient conditions for the first time. There are three modes of luminescence under ambient conditions, including prompt fluorescence, delayed fluorescence (DF) and RTP. The M-CA material shows a long RTP lifetime of 864.1 ms, which is over 7000 times longer than that of melamine itself. The effective intermolecular interactions suppress nonradiative transition of the triplet excitons , enhance the intersystem crossing and provide an oxygen-insulated environment, thus boosting RTP emission. In addition, due to dual emission properties of RTP and fluorescence, the obtained M-CA supramolecular HOFs can be potentially applied in the field of information encryption.
研究领域:
材料科学
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光学
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信息安全
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）