Particuology
·
2025
·
IF 4.3
Lianghua Wang,Yang You,Zhen Li,Ningfei Yang,Haoran Luo,Mingliang Yuan
O3-type layered oxides are among the most promising cathode candidates for sodium-ion batteries, yet their practical use is constrained by irreversible oxygen redox at high voltages, parasitic side reactions, and pronounced moisture sensitivity. Here, we propose a one-step H 3 BO 3 treatment that introduces an in-situ boride complex, enabling near-surface B doping and the formation of a conformal sodium borate interphase. The dual modification operates synergistically: B incorporation reinforces the layered framework and suppresses oxygen redox above 4.0 V, while the sodium borate layer, endowed with high Na + conductivity, functions as a robust interfacial barrier. These effects collectively suppress transition-metal dissolution, mitigate electrolyte decomposition, and promote rapid Na + transport. Benefiting from this design, the optimized cathode delivers 160.5 mAh g -1 at 0.1C and retains 85.3% capacity after 200 cycles at 1C. Moreover, the sodium borate coating effectively blocks H + /H 2 O ingress, conferring exceptional air stability. After 150 cycles, 3-days-aged pristine cathode retains 4.7% of the fresh capacity, whereas optimized cathode maintains nearly pristine cycling stability. Even after seven days of exposure, only trace Na 2 CO 3 impurities are detected. This work establishes in situ boride complexes as a viable strategy to achieve electrochemically robust and moisture-tolerant sodium-ion cathodes for grid-scale energy storage.
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Fang-Yu Tao,Dan Xie,Wan-Yue Diao,Chang Liu,Godefroid Gahungu,Wen-Liang Li,Jing-Ping Zhang
Despite the dendrite growth and volume change faced by Na metal anodes (SMAs) can be suppressed by constructing sodiophilic three-dimensional (3D) skeleton, the long-term cycling stability of SMAs under harsh work conditions (>10 mA cm −2 ; >5 mA h cm −2 ) is still unsatisfactory. Herein, a gradient-structured sodiophilic carbon skeleton, composed of carbon foam decorated with gradient-distributed Ag nanoparticles (Ag NPs@CF), is elaborately designed to enable the stable operation of SMAs even in harsh work environments. Firstly, the gradient sodiophilic structure of Ag NPs@CF directionally regulates the Na + nucleation/growth behavior, homogenizing Na + flux and electric field near the electrode and inhibiting dendrites formation. Secondly, the sodiophilic Ag NPs promote the formation of gradient solid electrolyte interphase, enhancing the interfacial stability and expediting Na + transport kinetics at the interface. Furthermore, the open 3D structure of CF spatially confines Na deposition without volume change during cycling. Consequently, the Na-Ag NPs@CF symmetrical battery demonstrates stable cycling for over 2200h with an ultralow overpotential of 10.2 mV under harsh conditions of 10 mA cm −2 /10 mA h cm −2 . Meanwhile, the assembled Na-Ag NPs@CF||NVPOF full cells show superior rate capability and cycling stability. The gradient sodiophilic structure proposed in this work sparks new insights for designing high-performance SMAs.
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产品关联
DOI
高影响因子
Materials Today Energy
·
2021
·
IF 7.311
Xingpeng Gao,Yingying Hu,Wenping Zha,Yanpei Li,Jingyi Wang,Hongjian Lai,Xiangwei Wu,Jianhua Yang,Chunhua Chen,Zhaoyin Wen
Na-metal halide batteries are regarded as one of the most promising candidates for large-scale energy storage systems owing to their high energy density and high safety. However, the problems of low kinetics and poor stability caused by the low-conductive chlorides have restricted the development of Na-metal halide batteries. Here, we design a facile approach that combines electrospinning and electrodeposition to prepare electrodes with a nanostructured composite containing carbon nanofibers and Ni-Fe alloy (CNF@Ni-Fe alloy). It is confirmed that the Ni-Fe alloy can stably be oxidized and reformed when discharges from 2.36 V to 2.32 V. Benefiting from the unique nanoscale arrangement of Ni-Fe, the heterogeneous distribution of FeCl 2 and NiCl 2 effectively overcomes the block of low-conductive chlorides. Furthermore, the coreaction of Ni 2+ and Fe 2+ directly decreases the polarization potential, resulting in the improvement of reaction kinetics. Notably, batteries with the CNF@Ni-Fe alloy display a high specific capacity of 199.7 mAh g −1 and a capacity retention rate of 99% after 50 cycles at 0.6 C. The CNF@Ni-Fe alloy cathodes also deliver long-term stability with 104.5 mAh g −1 capacity retention after 600 cycles at 2 C and a good rate capability of 5 C.
研究领域:
材料科学
·
能源存储技术
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DOI
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2018
·Vol. 165
·期 11
·A2815
·
IF 3.662
Huijie Zhang,Lili Wu
Manganese dioxide has been considered to be one of the most attractive electrode materials for electrochemical energy storage applications owing to its high theoretical specific capacitance, low cost, abundant natural reserves and eco-friendliness. However, MnO2 has poor conductivity, which limits rate capability, and thus hinders the application of MnO2 in energy storage. Here we attempt to take advantage of cobalt-based metal organic frameworks derived nanoporous carbon (MOF-NPC) to improve the electrochemical performance of MnO2-based composite electrodes. We fabricated Na+-MnO2/MOF-NPC hybrid electrode by a simple redox reaction method. Accordingly, the hybrid electrode reaches a specific capacitance of 217.0 F g−1, which is significantly better than that of the individual components. Then the contribution of capacitance and diffusion to the whole is analyzed quantitatively. The capacitance retains 82.80% when the current density increases from 2 A g−1 to 20 A g−1. After 5000 cycles, the total capacitance loss is only 9%. Moreover, an asymmetric supercapacitor is assembled using Na+-MnO2/NPC composite and activated carbon as positive and negative electrodes, respectively. The asymmetric supercapacitor has the capacitance retention of 82% after 3000 cycles. These results provide a promising direction for designing high-performance supercapacitors.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2019
·Vol. 7
·期 44
·25268-25273
·
IF 10.733
Jun Han,Kunjie Zhu,Pei Liu,Yuchang Si,Yujun Chai,Lifang Jiao
Herein, the preparation of CoSb nanoparticles embedded in carbon nanofibers with a raised surface (N-doped CoSb@C nanofibers) via the electrospinning method is reported for the first time. The distinct structure facilitates the pseudocapacitive behaviors, which is the key to obtain fast kinetics and long cyclability. N and Co elements can not only optimize the electronic configuration but also buffer the volume changes of the material during cycling. For potassium-ion batteries, the capacity maintains 250 mA h g−1 after 500 cycles at 1 A g−1, and for sodium-ion batteries, the capacity keeps 413 mA h g−1 after 1000 cycles at 1 A g−1. Thus, this work makes a great contribution towards exploring high-capacity anodes for practical potassium-ion batteries and sodium-ion batteries.
研究领域:
材料科学
·
能源存储与转换
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DOI
高影响因子
Advanced Science
·
2026
·
IF 14.1
Ya-Meng Yin,Qinxia Liu,Zhiyuan Zhang,Weixiao Wang,Cunyuan Pei,Fangyu Xiong,Jinghui Chen,Qinyou An,Cai-Hong Yang,Dong-Sheng Li
The instability of the cathode electrolyte interface (CEI) under high voltage and elevated temperature poses a major challenge to the practical application of Na 3 V 2 (PO 4 ) 2 O 2 F (NVOPF) cathodes in sodium-ion batteries (SIBs). To overcome this issue, we introduce a dual-functional AlF 3 coating that effectively stabilizes the interface while improving bulk electronic conductivity. The AlF 3 -modified NVOPF@C exhibits exceptional cycling stability at 55°C, maintaining 84.9% capacity after 1000 cycles at 10 C in half cells and 96.8% at 5 C in full cells using hard carbon anodes. Detailed characterization reveals that the AlF 3 coating promotes the formation of a robust, inorganic-rich CEI, primarily composed of a NaF/AlF 3 /NaAlF 4 ternary fluoride composite. This newly constructed CEI layer not only acts as a protective barrier to suppress detrimental interfacial side reactions but also serves as an efficient ionic conductor to facilitate Na + diffusion. In addition, the AlF 3 coating induces the creation of F─Al─O bridging bonds with surface oxygen groups, which collaborate with carbon nanotubes to establish a highly continuous conductive network that enables efficient electron transfer. These findings underscore the crucial significance of constructing a stable inorganic-dominated CEI and continuous conductive pathways for developing high-rate and thermally stable SIBs.
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产品关联
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2018
·Vol. 42
·期 5
·3350-3355
·
IF 3.201
Ailijiang Abudurusuli,Kui Wu,Shilie Pan
Four new quaternary chalcogenides A2Ba7Sn4Q16 (A = Li, Na; Q = S, Se) were successfully synthesized in vacuum-sealed silica tubes for the first time. All of them crystallize in the noncentrosymmetric (NCS) cubic I3d space group with the cell parameters ranging from 14.807 to 15.4163 Å and Z = 4, respectively. Interestingly, their isostructures are different from the structural transformations (from tetragonal to trigonal) appearing in previously reported Na2BaSnQ4 compounds. As observed in their structures, (Na/Ba)Q4 and SnQ4 units alternately connect with each other by sharing corners to build a three-dimensional (3D) framework structure with charge-balanced Ba cations located within tunnels, which is different from the observation that the Na atoms located inside the tunnels formed by the interconnection of the BaS8 and SnS4 units in Na2BaSnS4. Optical properties (diffuse-reflection, IR, and Raman spectra) were also systematically studied and the results indicate that their optical bandgaps are in the range from 1.75 to 2.5 eV. Moreover, the second harmonic generation (SHG) responses of the title compounds were also measured to be about 0.1–0.5 times higher than that of benchmark AgGaS2 under 2.09 μm radiation.
研究领域:
材料科学
·
无机化学
·
非线性光学
·
晶体学
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2017
·
IF 2.986
Na Liu,Zhangxing He,Xubo Zhang,Yingqiao Jiang,Yuehua Li,Jing Zhu,Wei Meng,Lei Dai,Ling Wang
In this paper, Li 1−x Na x Ti 2 (PO 4 ) 3 @carbon (x=0.01, 0.03, and 0.05) composites as anode for aqueous lithium ion batteries were synthesized by in situ coating approach. The doping of Na on Li sites did not break the lattice structure of LiTi 2 (PO 4 ) 3 , while the lattice volume was increased by doping of Na. Among Na-doped LiTi 2 (PO 4 ) 3 @carbon composites, Li 0.97 Na 0.03 Ti 2 (PO 4 ) 3 @carbon (LC-Na-3) demonstrated the best electrochemical properties . Compared with the pristine LiTi 2 (PO 4 ) 3 @carbon (LC) composite, LC-Na-3 composite exhibited better rate and cycling performance. LC-Na-3 composite delivered the discharge capacity of 98.5 mAh g −1 at 0.2 C and 45.0 mAh g −1 at 15 C, 10.9 mAh g −1 and 32.1 mAh g −1 larger than that of LC composite, respectively. Moreover, the discharge capacity retention for LC-Na-3 composite achieved 90.4%, 6.9% higher than that for LC composite at the rate of 2 C after 300 cycles. The improved electrochemical properties of Na-doped LiTi 2 (PO 4 ) 3 @carbon composite was ascribed to the decrease of charge transfer resistance and the acceleration of diffusion of lithium ions , resulting from the widening of diffusion channel for lithium ions, which was verified by XRD measurements.
研究领域:
材料科学
·
电化学
·
能源存储
·
无机化学
·
纳米材料
·
电池技术
✓ 已验证
DOI
高影响因子
Journal of Energy Chemistry
·
2024
·
IF 14
Xiaoke Wang,Titi Li,Xixi Zhang,Yaxin Wang,Hongfei Li,Hai-Feng Li,Gang Zhao,Cuiping Han
Magnesium ion batteries (MIBs) are a potential field for the energy storage of the future but are restricted by insufficient rate capability and rapid capacity degradation. Magnesium-sodium hybrid ion batteries (MSHBs) are an effective way to address these problems. Here, we report a new type of MSHBs that use layered sodium vanadate ((Na, Mn)V 8 O 20 ·5H 2 O, Mn-NVO) cathodes coupled with an organic 3,4,9,10-perylenetetracarboxylic diimide (PTCDI) anode in Mg 2+ /Na + hybrid electrolytes. During electrochemical cycling, Mg 2+ and Na + co-participate in the cathode reactions, and the introduction of Na + promotes the structural stability of the Mn-NVO cathode, as cleared by several ex-situ characterizations. Consequently, the Mn-NVO cathode presents great specific capacity (249.9 mA h g −1 at 300 mA g −1 ) and cycling (1500 cycles at 1500 mA g −1 ) in the Mg 2+ /Na + hybrid electrolytes. Besides, full battery displays long lifespan with 10,000 cycles at 1000 mA g −1 . The rate performance and cycling stability of MSHBs have been improved by an economical and scalable method, and the mechanism for these improvements is discussed.
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DOI
高影响因子
CARBON
·
2020
·
IF 8.821
Shuyue Yao,Yujie Ma,Tianhao Xu,Zhongyue Wang,Peng Lv,Jiajin Zheng,Chen Ma,Kehan Yu,Wei Wei,Kostya (Ken) Ostrikov
Carbon coatings hold great promise for next-generation non-conductive energy storage nanomaterials . However, simplicity, stable, uniformity and high-performance remain unresolved issues. Here, unique synergy of the fluidized bed reactor with plasmas enables highly-effective, single-step fluidized-bed plasma-enhanced chemical vapor deposition (FB-PECVD) of uniform, low-temperature carbon coatings on TiO 2 nano-powder (TiO 2 @C). Plasma-specific effects induce the formation of new phases that are beneficial for energy storage. The 6 nm carbon layer is grown within only 10 min, while the TiO 2 maintains its anatase phase. The unique plasma conditions make it possible to form Ti–C bonds at the Ti/C interface at much lower temperatures than achievable otherwise. The electronic transport at the interface and structural stability are thus greatly improved. Consequently, TiO 2 @C shows excellent electrochemical performances as a negative electrode of sodium ion battery , such as specific discharge capacity of 290.2 mA h g −1 at 50 mA g −1 and very stable long-term cyclability (101.2% capacity retention over 300 cycles at 4000 mA g −1 ). Our results show that FB-PECVD is not only a versatile method for bond-reinforced interface nanoparticle coating with carbon, but also provide a new strategy for designing hybrid-phase electrochemically active nanocomposite materials.
研究领域:
材料科学
·
纳米科技
·
电化学
·
能源存储
·
无机非金属材料
·
表面工程
·
功能材料
✓ 已验证
DOI
高影响因子
RSC Advances
·
2021
·Vol. 11
·期 60
·37700-37707
·
IF 3.361
Chao Li,Binhui Luo,Youman Zhao,Yongsheng Chen,Hua Yang,Jingang Song,Lili Zhao,Xiaobo Fu
The stable storage of sodium ions always presents some difficulties for sodium-based dual-ion batteries (S-DIBs), such as the irreversibility of guest-storage and kinetic hindrance in the anode. Based on the low strain volume and stable phase structure, herein, lithium titanate (LTO, Li4Ti5O12) was developed to store sodium ions between the working potential (∼0.8 V), which expands the lower plateau over than that of lithium ion storage (∼1.55 V) to obtain a high energy density of full batteries. The spinel lithium titanate shows negligible volume change and extremely stable structure under Na+-storage, which completely overcomes the shortage problems of the Na+-host. Additionally, by the detection of the transfer state of anions and cations in dual-ion batteries, the diffusion coefficient of the sodium ion in the LTO electrode is higher than that of the cathode, which shows that the transport process of sodium ions can meet the kinetic demands of full batteries. Such S-DIBs exhibit a large working voltage of 2.0–4.6 V and stable electrochemical performance over 1280 cycles, which is superior to conventional sodium-based systems, and further exhibit many advantages such as high energy density, environmental friendliness, and low cost.
研究领域:
电化学
·
储能
·
材料科学
·
电池技术
✓ 已验证
DOI
高影响因子
SOLID STATE IONICS
·
2017
·
IF 2.354
Xujiao Yang,Kaiying Wang,Xianli Wang,Guangli Chang,Siao Sun
NASICON-type NaTi 2 (PO 4 ) 3 material has been extensively studied as a promising anode for sodium-ion batteries due to the open 3D framework with the large interstitial spaces, high theoretical capacity and small volume change during cycling process. However, the practical application of NaTi 2 (PO 4 ) 3 is hampered because of its low electronic conductivity . Herein, a simple approach along with post-annealing has been designed and adopted to prepare the carbon-coated NaTi 2 (PO 4 ) 3 (NaTi 2 (PO 4 ) 3 @C) composite. The as-prepared anode material is characterized by XRD , SEM, TEM and Raman spectrum . The electrochemical measurements reveal that NaTi 2 (PO 4 ) 3 @C has excellent Na-storage performances including high reversible capacity (112.6 mAh g − 1 at 0.2 C) and good rate capability (87.1 mAh g − 1 at 5 C). The superior electrochemical performance can be resulted from the synergistic effects of the nanosized NaTi 2 (PO 4 ) 3 particles and conductive carbon layer .
研究领域:
材料科学
·
电化学
·
储能
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）