CERAMICS INTERNATIONAL
·
2017
·
IF 2.986
Qin Li,Han Zhang,Shuaifeng Lou,Yunteng Qu,Pengjian Zuo,Yulin Ma,Xinqun Cheng,Chunyu Du,Yunzhi Gao,Geping Yin
Metallic oxide ZnO is considered to be a promising alternative anode material for lithium ion battery because of its high theoretical capacities (978 mA h g −1 ). However, its inherent low electronic conductivity and undesirable large volume change result in inferior electrochemical performances and hinder its practical application. Herein, ZnO/ZnO@C composites are prepared by a simple carbonization process of ZnO/ZnO@ZIFs-8, which are constructed by using ZnO particles as both template and zinc sources for zeolitic imidazolate frameworks-8 (ZIF-8) preparation via a facile solution reaction. When evaluated as anode for lithium ion batteries, the as-prepared composites show an initial capacity of 878 mA h g −1 at current density of 0.1 A g −1 with high capacity retention of 95.6% after 50 cycles, and an initial capacity of 359 mA h g −1 tested at 5.0 A g −1 with a capacity retention of 85.3% after 500 cycles, exhibiting outstanding cycling stability and excellent rate capability. The ameliorated electrochemical performances are mainly attributed to the elevated conductivity and cushioning effects provided by carbon framework derived from ZIF-8, and the enhanced pseudocapacitance behavior originated from the decreased size of ZnO particles and high surface area of ZIFs-derived carbon.
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高影响因子
Journal of Materials Chemistry A
·
2018
·Vol. 6
·期 16
·7155-7161
·
IF 9.931
Mingbao Huang,Anding Xu,Huanhuan Duan,Songping Wu
To meet heavy-duty applications for LIBs, development of superior electrode materials with high-efficiency lithium-storage capability has become very crucial and urgent. Herein, a simple one-pot method has been developed for the synthesis of a reduced graphene oxide-wrapped FeS nanoflake (FeS@rGO) composite using oleylamine as a solvent, reductant, and surfactant. The as-prepared FeS@rGO composite as an anode material for LIBs showed excellent cycling ability and rate performance, i.e., reversible capacities of 887 mA h g−1 at the current density of 200 mA g−1 after 150 cycles, 662 mA h g−1 at 1.0 A g−1 after 200 cycles, and 325 mA h g−1 at 5.0 A g−1 even after 1000 cycles. These enhanced electrochemical performances can be attributed to the unique cladding structure, in which rGO can act as a protective coating to accommodate volume changes of FeS upon Li-cycling and offer a fast electron transfer channel. A two-dimensional sheet structure also facilitates Li+ ion diffusion in active electrode materials. More importantly, the enhanced extrinsic pseudocapacitance can promote the charge transfer rate and afford significant Li-storage capacity, thereby promoting the rate capability of a material at large current densities. Therefore, as a promising anode with high power density and long lifespan, this composite has shown its distinct potential and advantage for heavy-duty LIBs.
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高影响因子
SOLID STATE IONICS
·
2015
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IF 2.561
Xiaobing Huang,Yaoyao You,Yurong Ren,Haiyan Wang,Yuandao Chen,Xiang Ding,Beiping Liu,Shibiao Zhou,Fuqiang Chu
Improving the rate performance is still a major challenge for Li 2 FeSiO 4 cathode material for Li-ion battery. Herein, hollow spherical Li 2 FeSiO 4 /C microscale particles, consisting of carbon-coated primary nanoparticles (20–40 nm) have been fabricated by a spray drying-assisted method. The particle size of spherical Li 2 FeSiO 4 /C is 1–5 μm, which is suitable for commercial application. When used as a cathode material for Li-ion battery, the as-prepared Li 2 FeSiO 4 /C composite with 16.7 wt.% carbon exhibits a high discharge capacity of 165 mAh g − 1 at 0.2 C rate. At 0.5 C, 5 C and 10 C rates, the capacities of 151 mAh g − 1 , 111 mAh g − 1 , and 96 mAh g − 1 are observed, respectively, indicating superior rate performance. Meantime, good cycling stability is achieved with a capacity retention of 94.5% at a high current density of 2 C after 100 cycles. The excellent electrochemical performance is mainly ascribed to the improved ionic/electronic conductivity arising from the hollow spherical structure and carbon-coated primary nanoparticles . The spray drying process shows a great potential for the large scale production of high quality Li 2 FeSiO 4 /C composite.
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高影响因子
ChemElectroChem
·
2019
·Vol. 7
·期 1
·306-313
·
IF 3.975
Haitao Zhang,Yichao Lin,Liang Chen,Deyu Wang,Hefeng Hu,Cai Shen
The large-scale utilization of Li-ion batteries in electric vehicles requires urgent development of cost-effective and high-performance electrode materials. Herein, we report the synthesis of conjugated carboxylate (Li 4 C 8 H 2 O 6 ) and non-conjugated carboxylate (Li 4 C 4 H 2 O 6 ) by using a simple solvothermal method and its utilization as anode materials in Li-ion batteries. Atomic force microscopy reveals that as-prepared Li 4 C 8 H 2 O 6 and Li 4 C 4 H 2 O 6 possess a sheet-like morphology with a thickness of 3–5 nm. An initial discharge capacities of 251.7 mAh/g and 251.6 mAh/g at a current density of 50 mA/g can be obtained for Li 4 C 8 H 2 O 6 and Li 4 C 4 H 2 O 6, respectively. In addition, Li 4 C 8 H 2 O 6 is combined with a small amount (5 wt. %) of graphene and nano-Si to enhance the cyclic performance and specific capacity. Consequently, Li 4 C 8 H 2 O 6 /graphene and Li 4 C 8 H 2 O 6 /nano-Si composites rendered a high discharge capacity of 350 mAh/g and 240 mAh/g, respectively, at a relatively higher current density of 100 mA/g. These results demonstrate that lithium carboxylates are promising anode materials for Li-ion batteries. Graphical To conjugate or not to conjugate : We report the synthesis of conjugated carboxylate (Li 4 C 8 H 2 O 6 ) and non-conjugated carboxylate (Li 4 C 4 H 2 O 6 ) by using a simple solvothermal method and its utilization as anode materials in Li-ion batteries.
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高影响因子
ChemSusChem
·
2017
·Vol. 10
·期 13
·2714-2719
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IF 7.226
Ziqiang Liu,Ningning Feng,Zihan Shen,Fujun Li,Ping He,Huigang Zhang,Haoshen Zhou
A new carbon- and binder-free O 2 cathode was fabricated by electroplating Ru-nanoparticle-coated ultralight Ni foam, which has good electron-conducting and electrocatalytic properties. This all-metal monolithic structure was able to suppress CO 2 evolution and provided 306 times higher capacity than commercial Ni foam-based O 2 cathodes. Graphical That′s so metal : A new carbon- and binder-free O 2 cathode is fabricated by electroplating Ru-nanoparticle-coated ultralight Ni foam, which has good electron-conducting and electrocatalytic properties. This all-metal monolithic structure suppresses CO 2 evolution and provides 306 times higher capacity than commercial Ni foam-based O 2 cathodes.
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高影响因子
DALTON TRANSACTIONS
·
2021
·Vol. 50
·期 37
·13052-13058
·
IF 4.39
Hui Zheng,Changhao Ding,Han-Shu Xu,Lulu Tang,Huimin Liu,Lianwei Wei,Kaibin Tang
Several FeS-derived intercalated compounds (C2H8N2)xFeS and Ax(C2H8N2)yFeS (A = Li, Na) were successfully synthesized via a novel ammonothermal method. The powder X-ray diffraction (XRD) measurements reveal that the FeS intercalated samples have the same tetragonal crystal structure as the parent FeS. After intercalation, these three as-synthesized samples do not show superconductor behavior, which is confirmed by the magnetization and the electrical resistivity measurements. (C2H8N2)xFeS exhibits paramagnetic semiconductor behavior, while the newly synthesized Ax(C2H8N2)yFeS (A = Li, Na) shows antiferromagnetic semiconductor behavior. The absence of superconductivity in these FeS-derived compounds should be closely related to the iron vacancies in the FeS layer.
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高影响因子
Nature Communications
·
2026
·
IF 18.1
Xu Yunyun,Wang Dashuai,Li Yuejiao,Qi Haifeng,Guo Zhuobin,Azam Tasmia,Das Pratteek,Wu Zhong-Shuai,Cheng Hui-Ming
All-solid-state Li–CO 2 batteries are limited by sluggish interfacial CO 2 redox kinetics and the incomplete decomposition of insulating Li 2 CO 3 at rigid solid-solid-gas interfaces. Here, we report an integrated cathode-electrolyte architecture in which copper atomic clusters and single atoms are co-anchored on freestanding N-doped carbon nanotubes and coupled with a succinonitrile/Li 1+x Al y Ge 2-y (PO 4 ) 3 -based solid-state electrolyte. The conformal ion-conducting phase and conductive nanotube scaffold provide coupled pathways for Li + , electrons and CO 2 at the cathode interface. Electronic coupling between the copper atomic clusters and single atoms induces charge transfer from the former to the latter (~0.457 e − ), rendering the Cu cluster sites partially cationic and facilitating the activation of carbonate intermediates. This dual-site configuration changes the discharge pathway and lowers the reaction energy of the rate-determining step to 2.412 eV. The assembled battery delivers a discharge capacity of 21356 mAh g −1 at 200 mA g −1 and operates for 260 cycles (>1000 h) at 500 mA g −1 with an energy efficiency of 78%. This work provides an interfacial design strategy for solid-state Li–CO 2 batteries by coupling continuous transport pathways with electronically regulated dual Cu active sites.
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高影响因子
ELECTROCHIMICA ACTA
·
2026
·
IF 5.8
Sa Xue,Yukun Zhang,Xiangyang Liu,Maogang He
Both TFETFE and 2FB enhance Li⁺-anion interaction, increasing AGGs contents. • 2FB promotes Li⁺-anion interaction more effectively than TFETFE, forming more AGGs. • Inorganic-rich SEI and CEI are generated by deep decomposition of anions in PPB. • Li|PPB|LFP full battery displays a capacity retention of 83.6% after 150 cycles. Due to the low viscosity and weak polarity, fluorinated ethers and fluorinated aromatic compounds are widely used as fluorinated diluents in locally concentrated ionic liquid electrolytes (LCILEs) to improve the electrochemical performance of ionic liquid electrolytes (ILEs). However, the extent to which these two types of diluents regulate Li + solvation structure remains unclear. In this work, two LCILEs were designed using 1,1,2,2-tetrafluoroethyl 2,2,2-trifluoroethyl ether (TFETFE) and 1,2-difluorobenzene (2FB) as diluents, denoted as PPT and PPB, respectively. Raman spectroscopy reveals that both TFETFE and 2FB can strengthen the interaction between Li⁺ and anion, thereby promoting the formation of aggregate ion pairs (AGGs). Compared with TFETFE, 2FB exhibits a more pronounced ability to enhance Li⁺-anion interaction, increasing the proportion of AGGs in PPB electrolyte to 42%, which is significantly higher than that in PPT electrolyte (30%). The enriched AGGs facilitates the preferential reduction and deep decomposition of FSI⁻ at the electrode/electrolyte interphase, leading to the formation of inorganic-rich (LiF, Li 3 N, Li 2 S and Li 2 O) solid electrolyte interphase (SEI) and cathode electrolyte interphase (CEI) with the compact and uniform morphologies. Benefiting from the favorable interfacial chemistry, Li||Cu half battery based on PPB electrolyte delivers a high Li plating/stripping Coulombic efficiency (CE) of 98.7% at 1 mA·cm -2 , exceeding that of PPT (98.0%). In addition, the Li||Li symmetric battery exhibits stable cycling for 160 hours at 2 mA·cm -2 . The Li|PPB|LFP full battery further retains 83.6% of its initial capacity after 150 cycles with an average CE of 99.8%, demonstrating superior electrochemical performance. This work provides practical guidance for the rational selection and structural design of diluents for high performance lithium metal battery electrolytes. Download: Download high-res image (231KB) Download: Download full-size image
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Hongwei Cai,Xiaoxiao Pan,Cong Li,Hao Luo,Menghan Lin,Mingyi Shang,Jiqiong Lian,Yanan Fu,Hongjun Yue,Huixin Chen,Xiaolong Li,Yujin Tong,Mi Lu
A synergistic strategy of alkaline etching and nitrogen lattice occupation is proposed. • The constructed gentle gradient structure achieves dual optimization of the kinetic process and reaction sufficiency. • The F-RG-US/M exhibits 871 mA h g −1 at 0.1C with 87.8% retention at 20C. A higher F/C ratio leads to poor conductivity of the fluorinated carbon (CF x ) material, resulting in slow kinetics of the lithium‑fluorine reaction and thus hindering its application in special fields such as high-power energy storage. By designing and constructing a new type of CF x structure, it is of great significance for improving the rate performance of Li/CF x batteries. Herein, a synergistic strategy of alkaline etching and nitrogen lattice occupation is proposed to construct a CF x material (F-RG-US/M) with a gentle gradient defluorination. NaOH achieves gradient defluorination, forming a gentle step-like gradient structure in the material. This structure provides abundant Li + diffusion pathways while maintaining a reasonable F/C ratio to ensure specific capacity. Urea alters the distribution of electron clouds through nitrogen doping, enhances conductivity, and modulates the chemical environment of adjacent C F bonds. MWCNTs form an elastic conductive network, which further accelerates the transmission of electrons and ions. Consequently, F-RG-US/M exhibits outstanding electrochemical performance, delivering a specific capacity of 765 mA h g −1 with 87.8% capacity retention at a high rate of 20C. This work not only enables a sustainable upgrading and closed-loop recycling route for spent graphite but also provides a viable pathway for the industrial deployment of high-power CF x cathodes. A synergistic strategy of alkaline etching and nitrogen lattice occupation is proposed to construct a CF x material with a gentle gradient defluorination. This approach enables closed-loop recycling of spent graphite and offers a practical route for the large-scale industrial application of power type CF x materials. Download: Download high-res image (169KB) Download: Download full-size image
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高影响因子
BULLETIN OF MATERIALS SCIENCE
·
2026
·Vol. 49
·期 3
·128
·
IF 2.1
Hu Jinghan,Wang Kui,Huang Weijiang,Wu Shaoyuan,Yue Yanling,Duan Jihong,Wang Jingying,Ming Shiyi,Huang Bingyue,Yan Wei
Composite polymer electrolytes (CPEs) hold significant potential for enhancing the safety of lithium-ion batteries. This study innovatively utilized phosphogypsum (PG) solid waste as a raw material to prepare modified calcium sulfate whiskers (mCSW), which were incorporated into poly(ethylene oxide) (PEO)-based composite electrolyte films. The results demonstrated that the addition of mCSW significantly enhanced the thermal stability of the composite electrolyte, reduced its crystallinity, and yielded higher ionic conductivity and lithium-ion transference numbers compared to conventional PEO electrolytes. The electrolyte containing 10 wt% mCSW exhibited an ionic conductivity as high as 1.9 × 10 −5 S cm −1 at 60°C. It demonstrated excellent compatibility with lithium iron phosphate cathodes and achieved stable cycling performance at a 0.2 C rate under 60°C conditions. This research not only provides a novel approach for the high-value utilization of phosphogypsum but also opens new avenues for the development of high-performance all-solid-state lithium-ion batteries.
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高影响因子
Membranes
·
2026
·Vol. 16
·期 8
·270
·
IF 4.2
Yu-Tong Yin,Rui Jia,Zhen-Liang Xu,Sen Wang,Rui Han
Extracting lithium from salt-lake brines boasts distinct advantages including low production cost, low energy consumption and low environmental risks, and will serve as a primary supply source of lithium salts in the future. This trend raises higher demands for the efficiency and cost-effectiveness of lithium extraction technologies. Nanofiltration (NF) membranes, renowned for their superior discrimination between monovalent and divalent ions, have been extensively utilized to obtain Li + from Mg 2+ -rich saline brines. In this study, positively charged NF membranes aimed at Li + /Mg 2+ fractionation were fabricated via surfactant-interlayer-assisted interfacial polymerization (SIAIP). Catechol (CA) and polyethyleneimine (PEI) were utilized to construct the CA/PEI interlayer, and oil-phase dodecyl phosphate (DDP) was used as an additive for interfacial polymerization (IP). The strongly bonded CA/PEI nanoaggregates improved interlayer stability and preserved the positive charge of the double-layer membrane. DDP adsorbed piperazine (PIP) at the two-phase interface through electrostatic interactions, accelerating PIP diffusion and forming a thick polyamide (PA) layer with uniform pores. The combination of CA/PEI interlayer and DDP synergistically enhanced size-sieving and Donnan effects. With MgCl 2 and LiCl rejections of 97.9% and 36.2% respectively, the optimized membrane shows superior selectivity for Li + over Mg 2+ . Moreover, the membrane exhibited weak electrostatic screening and concentration polarization, showing excellent operational stability under varied Mg 2+ -Li + ratios and feed concentrations.
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PubMed
高影响因子
Journal of Energy Storage
·
2026
·
IF 10.7
Jiacai Xiong,Zhimin Zou,Yu Bai,Yutao Xing,Chunhai Jiang
Decorating transition metal oxide in combination of carbon coating has been verified as an effective way to boost the cycling stability of SiO anode. However, the weak bonding between the transition metal oxides and SiO matrix tends to weaken the modification effect. Herein, SiO@C anode is modified with in situ formed Mn 2 SiO 4 interphase through solid-state reaction between SiO and the hydrothermally grown MnO 2 at the presence of resorcinol-formaldehyde (RF) resin coating layer. The Mn 2 SiO 4 interphase buffers the volume change of the composite anode through a reversible conversion reaction, leading to greatly enhanced cycle stability. For the optimized SiO/Mn 2 SiO 4 @C anodes, capacity retention ratios higher than 84% are preserved after 500 cycles at 1.0 A g −1 , significantly outperforming that of the SiO@C anode (65%). This work provides a facile strategy to fully exploit the modification effect of transition metal oxide on SiO-based anode, thus paving the way for high energy density Li-ion batteries with superior cycling stability.
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高影响因子
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