CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Hongkun Wu,Zhen Wang,Xiaoyuan Zeng,Zitong Fei,Yang Gu,Kai Ding,Peng Dong,Yingjie Zhang,Qi Meng
With the use of lithium batteries increasing year by year, resulting in a large number of waste lithium-ion batteries generated, bringing pressure to the ecological system while also causing a waste of Co resources. Although Co-based catalysts are also of interest in the Li–CO 2 system, no research has been reported on the preparation of catalysts for value-added utilization of recovered Co. In this paper, Li–CO 2 batteries with Co 3 O 4 /CNT cathodes were prepared by environmentally friendly hydrothermal method employing cobalt oxalate recycled from waste lithium-ion batteries as a Co source in combination with commercial CNT. Unlike traditional noble metal and transition metal-based catalysts, which are expensive and complicated, this work can further reduce the cost of batteries by recycling valuable Co sources from waste lithium-ion batteries. As a result, the battery has the discharge capacity of 2728 mAh g −1 at a current density of 100 mA g −1 . Not only that, but it can reach more than 85 cycles at a limited capacity of 400 mAh g −1 .
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高影响因子
Batteries-Basel
·
2022
·Vol. 8
·期 10
·161
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IF 5.938
Han Wang,Sidra Jamil,Wenwen Tang,Jing Zhao,Hui Liu,Shujuan Bao,Yijun Liu,Maowen Xu
Due to the high theoretical capacity of 1675 mAh g−1of sulfur, lithium-sulfur (Li-S) batteries can reach a high energy density of 2600 Wh kg−1, which has shown fascinating potential in recent decades. Herein, we report the spiderweb-like nanocage (Co/Mel) as a novel sulfur host with a melamine-sacrificed pyrolysis method. The incorporation of embedded cobalt nanoparticles (Co NPs) in the tips of carbon nanotubes (CNTs) can catalyze polysulfide transformation kinetics. In addition, the nanocages form a conductive three-dimensional spiderweb-like network that facilitates electrolytic penetration and electronic/ionic transportation. Moreover, the porous internal nano-cavities not only improve sulfur loading levels but also provide buffer space for volume expansion during charging and discharging. As a result, the hollow Co/Mel polyhedra with a high content of sulfur (75.5 wt%) displays outstanding electrochemical performance with an initial discharge-specific capacity of 1425.2 mAh g−1at 0.1 C and a low decay rate of only 0.028% after 1000 cycles at 1 C.Keywords:lithium-sulfur batteries;pyrolytic synthesis;zeolite imidazolate framework;spiderweb-like nanocages;catalytic conversion
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高影响因子
Journal of Materials Research and Technology-JMR&T
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2022
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IF 6.267
Ruixiang Wang,Yanyang Wang,Yanhua Lu,Jiangfeng Zheng,Caini Zhong,Jiaming Liu,Jianjun Liu,Shubiao Xia
Constructing advanced nanostructures and combining various active materials are effective strategies to obtain high-performance anode materials for lithium-ion batteries (LIBs). Herein, we report a surface-coordinated polymerization method to synthesize ZIF-67 nanoparticles with a reuleaux tetrahedron morphology, and combine the electrostatic adsorption method and heat treatment, nitrogen-doped hollow porous Co 3 O 4 (HP-Co 3 O 4 /NC) nanoparticles were anchored on reduced graphene oxide (rGO) to obtain HP-Co 3 O 4 /NC@rGO composites. This deliberate structural design can significantly improve the electrochemical performance of lithium (Li) storage. When applied as an anode material in LIBs, HP-Co 3 O 4 /NC@rGO nanocomposite renders a reversible capacity of 809 mAh g −1 after 200 charge/discharge cycles at a current density of 1000 mA g −1 . The excellent electrochemical performance is mainly attributed to the synergistic effect of the hollow nanostructure and graphene network. A hollow nanostructure can provide abundant active sites and enhance structural stability. As a conductive network, graphene tightly wraps Co 3 O 4 , which can not only increase the electronic and ionic transport but also alleviates the volumetric changes of Co 3 O 4 during the charge/discharge process, thereby improving the rate performance and cyclic stability.
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高影响因子
Journal of Materials Chemistry A
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2022
·Vol. 10
·期 45
·24258-24268
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IF 14.511
Shuo Wang,Haiting Shi,Yuanhua Xia,Dong Liu,Chunying Min,Ming Zeng,Sirui Liang,Ruiqi Shao,Xiaoqing Wu,Zhiwei Xu
A bottleneck limiting the practical application of lithium metal anodes is the uncontrolled growth of lithium dendrites caused by gradient distributed Li+ from separators to collectors. Herein, 3D-printed frameworks with a gradient distributed heterojunction and fast Li+ conductivity interfaces are developed to regulate the Li+ distribution and the direction of dendrite growth. More importantly, the effect of different Li+ concentration gradient frameworks on Li+ deposition behavior was analyzed in detail. Synchrotron X-ray tomography demonstrates that macropores dominate the framework, which effectively suppresses the volume change caused by lithium deposition. DFT calculations confirm the high lithiophilicity of γ-Al2O3 and the graphene heterojunction. Synchrotron radiation-based soft X-ray absorption spectroscopy illustrates the fast Li+ conductivity Li–Al–O interface resulting from the shortened Al–O bond distance. Benefiting from the higher Li+ concentration differences during the dissolution process and Li–Al–O interfaces, the gradient framework can achieve a high rate performance of ∼40 mV overpotential at 10 mA cm−2 and long cycle stability of ∼1500 h at 1 mA cm−2.
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高影响因子
COMPOSITES SCIENCE AND TECHNOLOGY
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2022
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IF 9.879
Jian Lin,Yan-Fei Li,Jing-Ping Zhang,Hai-Ming Xie,Hai-Zhu Sun
To ensure a satisfactory stability and conductivity, excess carbonaceous component has to be introduced in anode materials at most cases, which sacrifices the energy density of the half/full cell. Herein, a new strategy is proposed that metal-heteroatom bonds are quantitatively introduced to enhance the interaction between each component in electrode. This strategy is successfully applied in fabricating Mo-based (MoO 2 -X@N– C) electrode materials with active materials content as high as 65.00%. The realization of quantitative control mainly results from the usage of gelatin that can anchor each active component together for the abundant functional groups. As a result, long-life cycle capacity (400 mAh/g at 1 A/g for 2700 cycles) is achieved. Moreover, the full cell of the LiFePO 4 //MoO 2 -2@N–C exhibits 124 mAh/g after 100-cycle and maintains the high energy density of 166.7 Wh/kg. This work gives light on anode synthesis that can be large scale-produced with a time-saving strategy for ultra-stable energy storage devices.
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高影响因子
Journal of Essential Oil Bearing Plants
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2022
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IF 1.971
Yuanyuan Zhang,Lin Zhang,Yongbin Meng,Yuangang Zu,Feng Han,Xiuhua Zhao
The utilization of natural product resources is significant for economic growth and health care. Herein, Cinnamomum longepaniculatum essential oil (CLEO) was isolated by microwave-assisted hydrodistillation (MAH). The composition of CLEO was determined by gas chromatography/mass spectrometry (GC/MS), and the antibacterial, nematicidal and anxiolytic activities of CLEO were evaluated. GC/MS results revealed that 33 compounds were identified, accounting for 99.87% of the total identified compounds. The major components of CLEO were monoterpenes, including β-myrcene (22.55%), eucalyptol (11.59%), α-pinene (11.56%), terpinen-4-ol (8.63%). Further research found that CLEO can inhibit the growth of Staphylococcus aureus (MIC 7.13 mg/mL, MBC 14.25 mg/mL), Escherichia coli (MIC 14.25 mg/mL, MBC 57 mg/mL), and Pseudomonas aeruginosa (MIC 14.25 mg/mL, MBC 28.50 mg/mL), the zone of inhibition were 17.49 ± 0.51 mm, 13.35 ± 0.27 mm and 15.15 ± 0.31 mm, respectively. CLEO could increase cell membrane permeability and make β-galactosidase, protein and other substances leak from the cell. Importantly, CLEO was first used to kill pine wood nematodes (PWN, Bursaphelenchus xylophilus). It was found that CLEO was toxic to B. xylophilus (LC50=30.81 mg/mL), and PWN treated with CLEO rapidly died and extended. Furthermore, CLEO was used in anxiolytic for the first time. CLEO inhalation can effectively relieve anxiety-like behaviors in open-field test (OFT) and elevated plus-maze test (EPT), and restore neurotransmitters (5-HT, NE, GABA) in brain tissue to normal levels. This study provides a strategy for the industrial production of CLEO and discovers its potential role in food transportation and preservation, forest pest control, and relief of emotional disorders such as anxiety and stress, which are beneficial to health care and economic development and provides a basis for broader application of CLEO.
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高影响因子
ACS Sustainable Chemistry & Engineering
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2022
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IF 9.224
Jiaxiang Liu,Nanbiao Pei,Haiming Hua,Yi Deng,Haoshen Ma,Peng Zhang,Jinbao Zhao
The solid electrolyte interphase (SEI) film is vital to the plating/stripping behavior of lithium metal, while the formation mechanism has not been explained clearly. Here, the formation process of the SEI film is first classified into chemical and electrochemical degradation routes by introducing a LiZn alloy, a chemically inert but electrochemically reactive interphase, as a distinguished research substrate. In a carbonate electrolyte, it is found that the common inorganic matters (such as Li2O and LiF) mainly originate from the chemical degradation of the electrolyte; meanwhile, the electrochemical degradation mainly generates organic species such as C-OR and COOR. Based on this understanding, the SEI film can be further accurately regulated, and a heterojunction-type SEI film with a well-defined composition and structure is constructed. This offers us a new perspective to understand and regulate the formation of the SEI film for applicable lithium metal batteries.
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高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2022
·Vol. 33
·期 26
·20518-20531
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IF 2.779
Luo Huan,Li Hao,Yuan Shengxu,Li Jinchao,Zhang Yaping,Duan Hao,Li Jing
In this work, the Li-rich manganese layered oxide Li 1.2 Mn 0.54 Ni 0.13 Co 0.13 O 2 (LMNC in short) is coated with a novel Al 2 O 3 –ZrO 2 layer for lithium-ion battery application. Three modified LMNC materials including AZ1, AZ2 and AZ3 with different mass ratios between Al 2 O 3 –ZrO 2 coating and LMNC are successfully prepared. Al 2 O 3 –ZrO 2 coating layer inhibits the side reactions, restricts the transformation of layered structure and enhances the stability of LMNC. The coated LMNC shows the most excellent electrochemical performance for application in lithium-ion battery, when the mass ratio between Al 2 O 3 –ZrO 2 coating layer and LMNC is 2 wt% (AZ2). The specific discharge capacity of AZ2 (111.0 mAh g −1 ) is significantly higher than that of pristine LMNC (i.e., AZ0) (85.6 mAh g −1 ) at the 10 C rate. Moreover, the AZ2 shows outstanding durability during the 200 times cycling charge and discharge tests at 1 C, whose capacity retention rate and voltage decay are 81.6% and 370.1 mV after 200 cycles, respectively. Specifically, the voltage decay rate of AZ2 is much lower than those of most reported Li-rich manganese layered oxides. Therefore, the as-prepared AZ2 cathode material with excellent electrochemical performance has a bright future for lithium-ion battery application.
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高影响因子
JOURNAL OF MATERIALS SCIENCE
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2022
·Vol. 57
·期 28
·13527-13540
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IF 4.682
Chen Dongli,Zhu Ming,Zhan Wenwei,Long Lei,Yu Lu,Zhu Tao,Kang Peibin,Yang Xiaoping,Sui Gang
Abstract Lithium–sulfur (Li–S) batteries have been considered as a promising substitute for lithium-ion batteries because of their high theoretical specific capacity, low cost, and environmental friendliness. However, the further practical application of Li–S batteries is greatly limited by the intrinsic insulation of sulfur, the shuttle effects of polysulfides and sluggish kinetics of the redox reaction. Herein, a well-designed Fe, N co-doped mesoporous carbon sphere (Fe-N-MCS) was fabricated to modify separator for absorbing and reutilizing polysulfides in high-performance Li–S batteries using cost-effective S cathode. The obtained Fe-N-MCS was not only acted as a physical barrier layer to block polysulfides, but also as trapper to capture and anchor polysulfides due to its highly porous structure and N dopants in the carbon frameworks. Furthermore, the high-conductive Fe-N-MCS barrier layer can facilitate electron and ion transfer to improve the electrochemical reutilization of polysulfide trapped therein, because the Fe-N-MCSs exhibited high catalytic activity for enormously boosting the redox kinetics of polysulfides. In consequence, the Li–S batteries with Fe-N-MCS modified separator exhibited high reversible capacity, superior rate capability and impressively cycling stability. The construction of non-precious metal barrier layer with catalyst activity is a promising pathway for the development of high-energy–density Li–S batteries. Graphical abstract The polysulfides were anchored and reutilized by the Fe-N-MCS layer for high-performance lithium sulfur battery.
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高影响因子
ACS Applied Energy Materials
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2022
·
IF 6.959
Zhengying Wang,Qi Li,Keyan Sheng,Jiang Huang,Chun Fang,Jiantao Han
“Water-in-salt” electrolytes have enlarged the electrochemical window of aqueous electrolytes to 3.0 V. However, the practical application of this electrolyte faces the challenge of high cost. Recently, we have proposed a low-cost inorganic room temperature molten salt (RTMS) electrolyte with a widened electrochemical window of 3.1 V. Herein, the RTMS electrolyte has been integrated with a hydrophilic polymer by ultrafast polymerization through electron beam irradiation to further enlarge the anode limit, increase the ionic conductivity, and improve the thermal stability. The double-redox-active Prussian blue analogues of the cobalt hexacyanoferrate cathode (NaCoHCF) in the RTMS-based polymer electrolyte prepared by electron beam (EB) irradiation (e-RPE) show electrochemical performance with a high capacity of 137 mAh·g–1 at 1C and 100 mAh·g–1 at 5C. More significantly, at a high temperature of 60 °C, the NaCoHCF electrode in e-RPE exhibits a high capacity of 120 mAh·g–1 at 5C and a high capacity retention of 92% over 100 cycles at 1C. Compared to RTMS, the RTMS-based polymer electrolyte not only expands the hydrogen evolution limit but also shows high thermal stability, which is favorable for the electrochemical performance of NaCoHCF at high temperature. Furthermore, the battery with e-RPE is intrinsically safe and can be widely used in large-scale energy storage and wearable device applications.
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高影响因子
COMPOSITES PART B-ENGINEERING
·
2022
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IF 11.322
Xinbin Wu,Wei Yu,Wei Xu,Yujun Zhang,Shundong Guan,Zheng Zhang,Shuwei Li,Huanchun Wang,Xuanjun Wang,Liang Zhang,Ce-Wen Nan,Liangliang Li
Lithium-oxygen (Li–O 2 ) batteries are promising next-generation energy storage devices due to their ultrahigh theoretical specific energy. Oxide electrocatalysts such as RuO 2 are often used to improve the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) processes in Li–O 2 batteries, but the relation between the structural parameters and their catalytic properties is unclear so far. In this work, we synthesize RuO 2 nanoparticles at different annealing temperatures and investigate the influence of the Ru–O bond distances of RuO 2 on the OER and ORR processes in Li–O 2 batteries. The results of X-ray absorption fine structure show that the bond distances decrease with the increase of the annealing temperature. The RuO 2 with longer Ru–O bond distances renders a lower charge plateau to Li–O 2 batteries, showing a better OER performance, while that with shorter bond distances gives a larger discharge capacity and is more friendly to the ORR process. The cycle life of Li–O 2 batteries with a carbon nanotube-RuO 2 composite cathode is improved to 287 cycles (1148 h) under an extreme testing condition (the voltage range is 2.3–4.2 V), when the Ru–O bond distances are optimized. In addition, the influence of the Ru–O bond distances on the catalytic properties of RuO 2 is analyzed by density functional theory calculations. The findings in this work provide a guidance to enhance the ORR and OER efficiency of RuO 2 and other oxide catalysts.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2022
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IF 9.965
Ai-Long Chen,Mingyu Gao,Lulu Mo,Jing Wang,Zhen Xu,Yue-E Miao,Tianxi Liu
Lithium (Li) metal is considered as the best anode candidate for next-generation high-energy batteries due to its ultralow electrochemical potential and extremely high theoretical capacity. However, issues arising from the undesired growth of lithium dendrites and infinite volumetric change have seriously hindered the practical application of lithium metal batteries (LMBs). Here, we designed a super-lithiophilic amorphous zinc oxide-doped carbon nanofiber framework with uniformly-distributed and parallel multichannels (MCCNF@ZnO) to achieve the homogeneous distribution of electric field and Li + flux. By the assistances of COMSOL Multiphysics simulations and ex-situ scanning electron microscopy, we reveal that the Li metal preferentially deposits into the porous nanochannels inside the nanofibers, followed by its even distribution on the lithiophilic surface of MCCNF@ZnO. Furthermore, the conductive multichannels of the carbon nanofiber skeleton can effectively minimize the partial current density, thereby effectively avoiding the electrochemical polarization and assisting the uniform metallic deposition. As a result, MCCNF@ZnO exhibits a stable CE over 99.2% as the substrate after 500 cycles at the current density of 1 mA cm −2 . The symmetrical cell of lithium-loaded MCCNF@ZnO composite electrodes can stably operate over 3300 h at 0.5 mA cm −2 , indicating the great potential of MCCNF@ZnO for stabilizing lithium metal anodes in practical applications of LMBs.
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PubMed
高影响因子
危险品化学品经营许可证（带存储）